Reckart Performance Tuning

New Engine Covers

2012-02-21T18:40:00.000-08:00

RPT Austin is always on the lookout for outstanding products that are long lasting. We have used many vendors for the Fuel Rail Covers and none seem to last. The problem is the engine covers are plastic and expand/contract with heat. The paint needs to have the proper amount of flex and in the long term, still does not work. I have used a different process that uses Hydro Finishing Technologies. This is applied with water and is clear coated. The finish is very durable and will last a long time retain a beautiful shine.

2011 Cadillac CTS-V Dyno Tune

2012-02-21T16:03:00.000-08:00

Wow!!!! This was a complete jewel to work with and a marvel of design. The CTS-V has several body types and the wagon is a one of a kind. The lines and the stealthy configuration of the wagon leads people wondering what just blew by them. This particular Cadillac had the optional Black Diamond paint and what sparkle it has.

Now to the tuning. This CTS-V was equipped with the TR6060 6 Speed Manual Transmission and typically dynos 495-505 rwhp. This one already had the Cold Air Kit and a Catback Exhaust System. With most TVS Superchargers, these bolt-ons are really big contributors to add power. After some fine tuning, the gains are below and a complete surprise as to the CTS-V's potential.

After some testing driving with my customer, this Cadillac pulls hard to 140 mph and had no intention of stopping. The ride quality and sound deadening is typical of a Cadillac, VERY GOOD.

2008 Corvette Z06 Camshaft Installation

2012-02-19T03:27:00.000-08:00

RPT Austin cam swap in a 2008 Z06. The customer was seeking street power with good drivability. RPT worked out a package for how the customer actually used the car ie...Garage Queen, Weekend Warrior, Work / Transportation or Track Days of some sort. Then RPT offered up the best package for the customers wants and needs. When RPT is given the choice for the cars setup we always end up with another success story for the customer and RPT.

This package Included:

RPT Camshaft Choice
Springs & Titanium Retainers
Heavy Duty Timing Chain
Gaskets and Bolts
New Oil and Filter
NGK TR6 Spark Plugs
RPT Custom Dyno Tune

This car has great low end torque and drives stock, it fit the customer perfectly. This combination will improve nicely with Long Tube headers and sound a little better all while retaining excellent reliability.

2008 Corvette Header Installation

2012-02-11T18:24:00.000-08:00

Today was a great in Austin for some header installs. Today consisted of two low mileage C6 Corvettes and both looked great.

Next on the list was Mr. Sones 2008 Black Corvette M6. The mods on this one was the Vararam CAI and Corsa Sport Mufflers. The install was straight forward and encountered no issues. Here is the list of the new upgrades:

Kooks 1 7/8" Longtube Headers
Kooks 3" Catted X-Pipe
Kooks Installation Kit
Custom RPT Dyno Tuning

The gains were 35 rwhp and 31 ft-lbs and nice overall power output on stock internals.

2009 Corvette Header Installation

2012-02-11T18:22:00.000-08:00

Today was a great in Austin for some header installs. Today consisted of two low mileage C6 Corvettes and both looked great.

First up, was Mr. Schwab's 2009 Cyber Grey Corvette M6. The only mods was the replacement of the stock air box/bridge to the configuration from the C6Z06. The headers of choice are:

Kooks 1 7/8" Longtube Headers coated by JetHot
Kooks 3" Catted X-Pipe
Kooks Installation Kit
Custom RPT Dyno Tuning

The gains were 39 rwhp and 40 ft-lbs. This Corvette still retained the stock non-NPP Mufflers. The idle was really quiet as well.

2009 Corvette Z06 Cam Installation

2012-02-03T14:31:00.000-08:00

RPT completed another installed of the EnglandGreen Mayhem II Camshaft and seems to be the norm around here. We have installed them in LS1, LS6, LS3 and LS7 Engines and all have been flawless. This particular one was on a 2009 Atomic Orange Z06 with 15K miles. This Z06 is a real special Corvette and has always gotten a lot of attention. With the carbon fiber front splitter, side skirts and rear spoiler….it is a real one of a kind.

The cam installation included:

EnglandGreen Mayhem II
Patriot Gold Dual Valve Springs
Comp Cams 7.800” Hardened Pushrods
Comp Cams Trunion Upgrade
160 Degree Thermostat
Gaskets and Fluids
RPT Custom Dyno Tuning

I have working with this Z06 for quite sometime and has been a pleasure to be a part of it throughout the modification process. After it was all said and done, this Z06 is a beast and pulls hard. The driving manners are so good, the car drives like stock. With most cams, you have to give the car a tad more clutch to get it moving. Not with this one. The Vette can be coasted around with no gas pedal input during take off or parking lot maneuvers.

Here are the results and videos.

2008 Corvette LS3 A6 Header and Intake Installation

2012-01-25T18:17:00.000-08:00

RPT completed some nice upgrades on a 2008 Corvette A6. This is completely stock and turned out really well. The mods are listed below:

Kooks 1 7/8" Longtube headers
Kooks 3" Catted X-Pipe
Corsa Sport Catback
Halltech Super Bee CF103 Cold Air System
RPT Custom Dyno Tune

This is an excellent increase for a stock LS3. When returning the Corvette to my customer, it sounded great and no drone from the exhaust. The CF103 is full carbon fiber and looks great against the red exterior.

2005 Mazda Miata Dyno Tune (LS3)

2012-01-25T18:02:00.000-08:00

RPT gets a few cars that are one of a kind. Yet, another one rolls in today and this was a 2005 Mazda Miata with a GMPP LS3 Engine. WOW.......and a very clean install. This car is for track duty and has a 4 speed manual transmission and a Ford 8.8 Rear Axle with 3.73's installed.

The LS3 was a GMPP Crate Engine and is identical to the production engine offered in the Corvettes and Camaros. Of course, we can not leave it alone. The mods are below:

Texas Speed and Performance Camshaft
PRC Dual Valvesprings
TSP 7.400" Hardened Pushrods
Dry Sump System with 3 Gallon Oil Capacity
Custom Longtube Headers
Custom Catback Exhaust
Custom Cold Air System with K&N Filter

The Miata weighs in at 2,300 lbs and has 12" slicks on all four corners. This beast will be a handfull at the local road race circuits:)

2004 Pontiac GTO Cam Installation

2012-01-25T17:55:00.000-08:00

RPT had the opportunity of installing the Mayhem II Camshaft into a Pontiac GTO 5.7L. The list of mods are listed below:

EnglandGreen Mayhem II Camshaft
Patriot Gold Extreme Valvesprings
Comp Cams 7.400" Hardened Pushrods
Pacesetter Longtube Headers
Pacesetter Offroad Connection Pipes
SLP LoudMouth Catback

The idle is very lopey and sounds perfect. As you can see below, tons of power and pulls all the way to redline. The around town driving is very good and plenty of torque for a 3600 lb car.

The installation was in two parts. The lower line is with the cam and tuning only. The upper line is the addition of longtube headers. The headers were backordered and were delayed prior to the initial installation.

2010 Corvette Cam Installation

2012-01-25T17:38:00.000-08:00

RPT just completed the install of a England Green Mayhem II Camshaft into a 2010 Corvette M6 with 8k miles. This cam has had, and will continue to, a great following and delivers on torque and power.

This particular Corvette has been with RPT even when it was stock. The headers and x-pipe was installed earlier this year and as we all do, add a little more power.

At the end of the day, the Corvette put down 481 rwhp and 446 ft-lbs with the stock Air Bridge/Filter. The Vette drives great and has a nice sound as well.

2003 Corvette Supercharger Install

2012-01-17T03:22:00.000-08:00

RPT in Austin completed another A&A Corvette Supercharger install on an immaculate 2003 Corvette Z06. This was already extremely fast car and with the added midrange and top end from A&A Corvette, it is one of a kind. This Z06 is one of the strongest LS6’s in the country putting down 507 rwhp and 446 ft-lbs with Heads and Cam. After the A&A Supercharger was added, the final results were 690 rwhp and 580 ft-lbs on a mere 7 psi.

Prior Modifications:

England Green Mayhem II Camshaft

Trickflow 215 cc Cylinder Heads

FAST 102 mm Intake Manifold

Kooks 1 ¾” Longtube Headers

Kooks 3” Catted X-Pipe

Halltech Killer Bee II

VMax Ported LS2 TB….507 rwhp/446 ft-lbs

After Modifications:

A&A Supercharger with V3-Si Trim (3.8” Pulley)

Racetronix Fuel Pump Harness

60lb Fuel Injectors…..690 rwhp/580 ft-lbs

With the addition of 183 rwhp and 134 ft-lbs on a ultra lite Z06, this pulls very hard and will challenge the tires art all times.

2006 Corvette M6 SC Install

2011-11-19T18:27:00.000-08:00

RPT completed another A&A Corvette Supercharger installation and tune. The Corvette came to us from Albuquerque, NM. What a pleasure and this one was a Z51 and very clean. The install went as planned and replaced the crankshaft pulley since it was wobbling. After the dyno tune, the Corvette peaked at 8.9 psi and experienced great gains. When it came to us, it already had longtube headers and a tune. Since Albuquerque is 6,000 feet in elevation, the air is much thicker here and Texas has 93 octane gasoline. With the headers, the Corvette was running lean and was experiencing knock retard. That would explain the lower number prior to the supercharger install. In the end, 600 rwhp and drives absolutely great and would expect nothing less.

2007 Corvette E-Force SC

2011-11-19T18:19:00.000-08:00

RPT had the pleasure of diving into a 2007 Corvette A6. This one had some issues and needed some troubleshooting as it was misfiring on Cylinder #7. The list of modifications included:

Edelbrock E-Force Supercharger
Patriot Stage 2 Cylinder Heads
GM LS9 Camshaft
Yella Terra 1.7 Rocker Arms
Lunati Lifers
Chromemoly Pushrods

After troubleshooting the misfire problem, cylinder #7 was low on compression. The supercharger and the cylinder heads were removed. Cylinder #7 Intake Valve was not fully seated against the valve seat. After much deliberation, the heads were replaced with PRC Stage 2.5 Heads. The Corvette runs much better and the misfiring problem has been resolved. The results are below after RPT Tuning was performed:

2008 Corvette Z06 Cam Install

2011-11-19T18:12:00.000-08:00

RPT just completed a cam and header installation on a 2008 Corvette Z06. The cam package included:

Livernois Stage 2 Camshaft
Livernois Dual Valvesprings, Titanium Retainers, Super 7 Valve Locks and Valve Seals
Comp Cam Trunion Upgrade
Kooks 1 7/8" Longtube Headers
Kooks 3 " Catted X-Pipe

Halltech MF107R Cold Air Intake

The Corvette Z06 already had an older version of the Super Bee Intake was tuned. Upon completion, the Z06 idle almost like stock. There is a slight lope with the bi-modal exhaust closed. With the bi-modal exhaust open, the exhaust note is much deeper and sounds really great on the street. The LS7 427 has great torque in stock form and is much improved with the latest upgrades. The dyno sheet is below and this car is a blast to drive.

2009 Silverado 7.0L Idle Issues

2011-11-06T03:32:00.000-08:00

A new customer was having idle control issues on a 2009 Silverado with a Turn-Key 427ci Engine. Also, there has been excessive oil consumption, 1 quart over 500 miles.

The 427ci Engine runs great and has issues coasting down to idle rpm. Many times, it stalls. After adjusting many tables like:

Base Minimum Airflow
ECT Multiplier
Baro Multiplier
Idle Underspeed and Overspeed Timing
Adaptive Idle Parameters
Torque Management

The Silverado idle much better and drives great. As far as the oil consumption, the crankcase ventilation was very suspect and with the current catch can system, the oil was still being consumed. One thing to notice, with the increased bore and stroke, the valley cover was not venting. The standard valley cover does not have the oil/air separator and does have the vent line from the valley cover. The OEM Cover was removed and installed the LS2 Valley Cover. There was approximately ½ quart of oil in the intake manifold and that was cleaned out.

Once the LS2 Valley Cover was installed, the hose were routed from the valley cover to the intake. The fresh air inlet was all routed from the air bridge to the valve cover. We will keep tabs on this truck to verify if the problem is fixed.

2008 Corvette Z06 Dyno Tune

2011-11-06T03:22:00.000-08:00

RPT had the opportunity to dyno tune a bone stock 2008 Corvette Z06 with ~20k miles on the odometer. The Corvette was Atomic Orange with the Sienna 3LZ Interior. The goal for this Corvette was to obtain a baseline dyno pull on a stock Z06, install the Halltech MF107R Intake and retune the car. The results were very good with an increase of 38 rwhp and 26 ft-lbs. The install of the MF107R was very clean and fit perfectly.

2002 Corvette Z06 Dyno Tune

2011-10-21T06:22:00.000-07:00

RPT had the opportunity to dyno tune a 2003 Corvette Z06 with 20k miles on the odometer. This one was very clean and look as if it just rolled off the assembly line. The Corvette has having idle issues and low speed drivability concerns. The list of mods includes:

England Green Mayhem II Camshaft
Trick Flow 215cc Cylinder Heads
FAST LSXr 102 mm Intake Manifold
FAST 36 lb Fuel Injectors
Ported LS2 90 mm Throttlebody
Kooks 1 ¾” Longtube Headers
Kook Catted X-Pipe
Stock 85 mm MAF
Halltech Venom II Cold Air Intake
Lightweight Flywheel
Underdrive Pulley

After the tuning session was complete:

As for the idle and low speed drivability issues, this took some time and finally ended up running great. These mods tend to aggravate the PCM when returning to idle, which is set to 850 rpm. The crankshaft no longer has the mass associated with the stock flywheel and crank pulley. Also, the aftermarket cam does not have the same idle torque and vacuum as the OEM camshaft. Many tables have to be adjusted which include:

Throttle Cracker Airflow for both clutch-in and clutch-out conditions

Throttle Follower Airflow

Idle Spark

Idle fueling with SD and MAF Modes

Throttlebody size (scalar value)

Adaptive Idle parameters

Base Running Airflow

2002 Corvette Z06 H/C Dyno Tune

2011-09-21T08:12:00.001-07:00

I had the opportunity to work with Mokry Auto Group on a 2002 Corvette Z06. They have been trying to sell it, but it has a check engine light for high MAF voltage. What this says is:

The Corvette has been tuned in speed density mode and the MAF was disabled. In order to put the Gen III PCM into speed density, the MAF Fail Frequency needs set to 0 Hz and set the P0103 DTC to fail on first error. The unfortunate thing is, it will never pass Texas Inspection since there will be a DTC stored in the PCM.

I attempted to copy the stock file using HP Tuners and received a fault for Security Access Denied. This becomes a real problem since the PCM is locked from the previous tuner. Since the previous tuner is unknown, the only option was to replace the PCM. Hewlett Chevrolet in Georgetown ordered and installed the PCM with the latest file for the 2002 Corvette Z06. Now, we can proceed with the tuning process. The Corvette Z06 had a nice list of mods, which we could verify.

Fast 92 Intake Manifold

Kooks Longtube Headers

Kook X-Pipe

Aftermarket Heads using the 799 Casting

Aftermarket Camshaft in the 230/240 Range

Halltech CAI

160 Thermostat

Stock Titanium Mufflers

Delphi 41 lb Injectors

Aftermarket Clutch

At the end of the day, the Corvette Z06 put down 460 rwhp and 428 ft-lbs after tuning on a Dynapack 4000 Chassis Dyno. On the street, the Corvette drive exceptionally well and with the stock mufflers, is real quiet. The coating and stop/go traffic manners are really tame and a great mod list that works well.

2004 Corvette Pulley Installation

2011-09-21T07:55:00.000-07:00

The C5 Corvette has a known issue of the crank pulley separating. This can cause some serious issues and the pulley can:

1. Wobble causing vibration
2. Squeal
3. Belt wear

We replaced on a 2004 Corvette and it was falling apart. The new pulley was much better and no more squealing. The C5 also has the 2 mph interlock defeated since they can be real sensitive. This can leave you on the side of the road.

2011 Camaro SS A6 Dyno Tune

2011-09-21T07:47:00.001-07:00

RPT complete a full dyno tune of a 2011 Camaro SS A6. This one was Cyber Grey and has 18K on the odometer. This one came in with a CAI and LG Motorsports Long Tube Headers. After the dyno tune, the torque that was produced was really good compared to what I have seen in the past. This is the highest torque from a L99 that I have seen. The A6 was adjusted, as always.

2011 Camaro SS Magnacharger Installation

2011-09-21T07:40:00.000-07:00

RPT complete the installation of a Magnacharger TVS2300 on a 2011 Camaro SS A6. The Camaro was stock and had 3,000 miles on it. The Magnacharger was a clean install and looks OEM. The Tuner Kit was ordered since custom tuning was selected over the handheld tuner. The Magnacharger came with a 3.800" pulley and put out 6.0 psi of boost. This is real safe for the L99 and could up the boost a little. The stock airbox and Magnacharger elbow were replaced with the CAI from Roto-Fab. Much cleaner look and allows for more power.

After the tuning was complete, took the Camaro for a test drive. The low end torque is amazing from this supercharger. The fact that the Camaro does not feel like a 4000 lb car makes it run fun to drive. At the same time, the fluid levels were checked and the heat exchanger does a great job in controlling the heat.

2007 Mustang GT SC Dyno Tune

2011-09-05T03:28:00.000-07:00

Last Saturday was a great opportunity to acquire Mustang tuning experience. This was a 2007 Mustang GT with a low compression 5.0L with cams and headers. The supercharger was recently added and was the Novi 2200 making 9.5 psi at 6500 rpm. Once the fueling was dialed in at 11.5 AFR, the Mustang put down 490 rwhp. Adjusting the timing brought it up to 577 rwhp and what a jump. Future plans include pulling down and that should bring the boost level to 14 psi.

2010 Corvette Grand Sport S/C Dyno Tune

2011-09-03T15:57:00.000-07:00

RPT complete the tuning for a 2010 Corvette Grand Sport M6 that was equipped with the Procharger P1-SC. The P1-SC achieved 6.8 psi of boost at 6500 rpm on the dyno. Typically, the Grand Sport Corvettes put down 380 rwhp in stock trim equipped with the TR-6060 6 Speed Manual Transmission. That puts this Corvette ~180 rwhp over stock. The GS also has Kooks Longtube Headers and the sound is very nice with NPP exhaust. There are future plan for the GS and stay tuned.

2005 Corvette A4 Supercharger Install

2011-09-03T15:52:00.000-07:00

RPT completed, yet another, A&A Supercharger System on a 2005 Corvette LS2 A4. This Corvette was black and has 83K miles on the clock. The A&A Supercharger was the normal kit and RPT added the Racetronix Fuel Pump Harness and Vortech V3 SC Headunit to the package. The Corvette was stock other than the Corsa Catback. After the install, the Corvette drives like stock and it quite the animal in the mid range and WOT. The gains were substantial and expect nothing less.

2006 Pontiac GTO Dyno Tune

2011-08-02T03:11:00.000-07:00

A customer called and needed headers installed on a 2006 GTO. This one already had a cam and did not get an opportunity to dyno the GTO in stock form. The cam was slightly larger than stock and has a broad torque curve. The GTO received the OBX Headers and they fit really well. The O2 sensors were too short and those were extended. After the dyno pull, the GTO was in need of a air induction kit and the owner will be installing one very soon. That should get the LS2 over 400 rwhp.

1998 Corvette A4 Dyno Tune

2011-08-01T18:37:00.000-07:00

RPT completed the dyno tune of a 1998 Corvette A4 and was a night/day difference afterwards. The Corvette had a 220 Camshaft, Shorty Headers, Catback Exhaust, High Stall Torque Converter and a CAI. This example shows the need for tuning after a cam. The AFR was too lean and the ignition advance was optimized for peak power. Since it was an automatic transmission, the shift settings were adjusted for better performance. All of the dyno pulls were performed in 3^rd gear and has a really smooth power band. After the tuning session was complete, the knock retard was eliminated.

2004 Jeep Wrangler 6.0L

2011-08-01T18:31:00.000-07:00

RPT completed the dyno tune on a 2004 Jeep Wrangler with a 6.0L/4L70E from a 2008 Silverado. The Jeep also had 4.11 gears/32” Tires and was a clean retrofit. The initial dyno pull was weak due to really low timing advance and lean AFR. After these were properly adjusted, the Jeep was like a complexly different vehicle. The 6.0L has variable valve timing and that was optimized for better midrange torque and throttle response. Both of these Jeeps had the same drivetrain and dynoed really close to each other.

2005 Jeep Wrangler 6.0L

2011-08-01T18:29:00.000-07:00

RPT completed the dyno tune on a 2005 Jeep Wrangler with a 6.0L/4L70E from a 2009 Silverado. The Jeep also had 4.56 gears/35” Tires and was a clean retrofit. The initial dyno pull was weak due to really low timing advance and rich AFR. After these were properly adjusted, the Jeep was like a complexly different vehicle. The 6.0L has variable valve timing and that was optimized for better midrange torque and throttle response. This should be a lot of fun offroad.

2007 Corvette Dyno Tune

2011-07-16T06:22:00.000-07:00

I had the opportunity to dyno tune a 2007 Corvette LS2 M6. The Corvette had LG Super Pro Longtube Headers and Bullett Mufflers. On the initial dyno pull, the LS2 was experiencing up to 8 degrees of Knock Retard with 93 Octane Fuel. This was due to the fueling being way off. After the mods, the AFR was running around 14.7:1 at full throttle. In the dyno graph, the knock retard was dropping the torque by large amounts. After tuning, the spark timing was set to 21 degrees and the AFR is 12.66:1. All of this was measured on the Dynapack 4000 Chassis Dyno. Now the LS2 is much smoother throughout the entire rpm range and no Knock Retard. The part throttle parameters were logged and rebuilt the MAF Table logging the Wideband and LTFT’s. Other items that were addressed:

Deletion of Torque Management
Fan Operating Parameters
Throttle Response Adjustments
Computer Aided Gear Selection Deletion
Street Log Verification

2002 Camaro Z28 SS Cam Install

2011-07-10T03:09:00.000-07:00

We just completed a cam/header install on a 2002 Camaro Z28 SS. The initial dyno pull was 339 rwhp and initial mods included:

Yank PT4000
Upgraded Y-Pipe
Airlid
3.42 Gears

The installation included:

Custom Cam (226/234 0.598/0.601 113+3 LSA)
Dual Valve Springs
7.400" Trickflow Pushrods
LS6 Oil Pump
LS2 Timing Chain
Pacesetter LT Headers
Pacesetter Offroad Y-Pipe

After tuning, the Camaro SS put down 403 rwhp (+64 rwhp).

2009 Corvette Z06 Dyno Tune

2011-07-03T03:28:00.000-07:00

RPT completed the dyno tune of a 2009 Corvette Z06 powered by the LS7 7.0L Engine. The current mods were a Halltech Cold Air Induction Kit and Upgraded Mufflers. After tuning, the Corvette is much, much better and the low end torque was greatly improved. The AFR was 12.45:1 since the gas in Texas contains up to 10% Ethanol. Addressed other issues like CAGS, Fan Temps, Torque Management and rebuilt the High Octane Timing Maps. Typically, completely stock Corvette Z06's dyno ~450 rwhp and ~435 ft-lbs of torque.

2000 Corvette FRC Supercharger Install

2011-06-04T11:03:00.000-07:00

RPT completed the installation of the A&A Supercharger on a low mileage 2000 Corvette FRC M6. The Corvette is stock and the owner is looking to retain the stock driving characteristics. The initial pull was 330.8 rwhp @ 5,529 rpm and 334.9 ft-lbs @ 4,745 rpm. After the supercharger was installed and dyno tuned, the end result was 539.1 rwhp @ 6,000 rpm (+208.4 rwhp) and 494.0 ft-lbs @ 5,468 rpm (+159.1 ft-lbs). The boost pressure was 10.25 psi using the 3.6” pulley. The Corvette drives like stock until you roll into the throttle and is very responsive. The next item that will be installed is the ECS Trans/Diff Brace.

Supersonic Blue 2011 Corvette Grand Sport

2011-06-04T10:53:00.000-07:00

Dyno tuned another Corvette Grand Sport and this on has the A6 Transmission as well. The initial pull was 370.9 rwhp @ 5953 rpm and 370.9 ft-lbs @ 4656 rpm. After the dyno tuning, the GS finished at 389.7 rwhp @ 5535 (+18.8 rwhp) and 387.9 ft-lbs @ 4605 rpm (+16.9 ft-lbs). The Supersonic Blue is a great color and nice to see it in person.

Crystal Red Metallic 2011 Corvette Grand Sport

2011-06-04T10:46:00.000-07:00

I just finished up the dyno tune on a 2011 Corvette Grand Sport A6. This one was stock and had ~1,300 miles on it. The initial dyno pull was 371.9 rwhp @ 5,906 rpm and 374.6 ft-lbs @ 4,688 rpm. After tuning, the GS finished at 385.8 rwhp @ 5,641 rpm (+14 rwhp) and 385.6 ft-lbs @ 4,680 rpm (+11 ft-lbs). The A6 Transmission was tuned and this Corvette should be a lot more fun to drive.

2001 Corvette Z06 Supercharger Installation

2011-05-21T15:18:00.000-07:00

Reckart Performance Tuning in Austin, Texas completed another A&A Supercharger Install and exceeded all expectations. The goal was 620 rwhp for this build and the Z06 had 83K on the clock. The modifications include:

A&A Supercharger with the 3.6" Pulley
England Green Whiplash II Camshaft
Kooks 1 7/8" Longtube Headers
Kooks 3" Catted X-Pipe

The 01 Z06 was stock and only had a Borla Mufflers and a Donaldson Air Filter. The gains were 309 rwhp and 234 ft-lbs and drives/idles great. The Vette is very responsive and the customer was completely satisfied with the installation. Just another example of what A&A can do for you.

A&A Corvette Supercharger Install

2011-04-25T18:45:00.000-07:00

Reckart Performance Tuning just completed the installation of the A&A Corvette Supercharger System on a 2008 Corvette LS3 M6. The final numbers were 627 rwhp and 545 ft-lbs of torque on 8.2 psi of boost. The car is amazing and the power and pulls hard to 6,500 rpms. Around town, it drives like stock and get the same gas mileage. The supercharger sounds are great with a slight whistling sound.

2008 Corvette LS9 Cam and LS7 Manifolds

2011-03-25T22:09:00.001-07:00

2004 Pontiac GTO Dyno Tune

2011-03-11T21:25:00.000-08:00

This was an opportunity dyno tune this GTO following the replacement of the intake air filter system. The previous dyno seesion included the LS2 Heads, Custom Camshaft and Longtube Headers with Cats. During the last dyno session, the MAP was dropping off a lot and that indicated the engine was not getting enough air. Since then, the intake tract was replaced and the new dyno nuumbers show the result after tuning.

2005 Pontiac GTO M6

2011-03-11T07:07:00.000-08:00

I just finished a round of tuning on a 2005 Pontiac GTO M6 with a Texas Speed 402. The GTO received another round of hardware upgrades and required dyno tuning. The upgrades include switching from Pacesetter 1 3/4" Headers to the Kooks 1 7/8" Headers, Catted Mid-pipes, Crank Underdrive Pulley, Comp Cams Trunion Bearings and raising the compression to 12.08 to 1. The horsepower increase was more than we expected and the increase in compression was the reason. The fueling was changed from MAF to Speed Density and that eliminates the MAF Housing as a restriction. The GTO drives even better and pulls really hard for a heavy car.

2010 Camaro SS L99 Dyno Tune

2011-03-05T18:16:00.000-08:00

I had the opportunity to dyno tune another 2010 Cyber Grey Camaro SS. This had the L99 (6.2L) and the A6 Transmission. This was a great time to get a bone stock dyno pull and it did quite well. The stock pull did experience 5 degrees of knock retard above 5000 rpms. After the engine was tuned, the A6 transmission was tuned. The stock TCM has too much torque management causing the transmission to shift too soft.

2007 Corvette A6 Header and CAI Install

2011-03-04T12:25:00.001-08:00

RPT had the opportunity to address a customers 2007 Corvette LS2 A6. The plan was to add Kooks Longtube Headers, Catted X-Pipe and Halltech Venom II Intake System. As with the LS2, it is a great engine and the OEM parts hold it back from its full potential. The requested parts were added and the Kooks Headers are the simplest headers to install. They slide into place without removing extras pieces like the steering linkage. The spark plugs were removed to lessen the chance of damaging them. The X-Pipe went into place and reinstalled the rear O2 sensors with the extension harnesses. After the project was complete, the Corvette sounds great with the Magnaflow Mufflers. During the road test, there is no exhaust drone with the A6 transmission and that can be tough to eliminate at certain rpms. On the dyno, the Corvette made 353 rwhp and 357 ft-lbs of torque. There was a bit of knock and will have to look at the intake tract for excessive oil consumption. The max timing was 19 degrees and that is low.

2005 Corvette A4

2011-03-04T12:16:00.001-08:00

Today, I dyno tuned a 2005 Black Corvette A4 with BBK headers. The Corvette still had the factory intake assembly and stock mufflers. After spending some time on the dyno, the air/fuel and spark timing are optimized. Unfortunately, we did not have a bone stock pull before modifications were added. The A4 transmission was addressed as well and modified the shifting patterns to add to the performance on the street. With most drive by wire throttle systems, the throttle blade is responding much faster. All of these things add up and once the air intake is replaced, the Vette will have some great numbers.

2011 Camaro SS Header Installation/Tuning

2011-03-04T12:07:00.000-08:00

I had the opportunity to retune previous customers 2011 Camaro SS LS3 M6. This one had the Vararam Intake and we tuned on my dyno. The Camaro SS made 394 rwhp and 400 ft-lbs of torque during the first session. The Kooks Longtube Headers and Catted X-Pipe were added just a week ago. After the retune, the Camaro put doe 422 rwhp and 418 ft-lbs of torque. This will be very noticeable on a 3900lb car.

2008 Corvette LS9 Camshaft Install

2011-03-04T12:03:00.001-08:00

Just completed the installation and tuning of the LS9 Camshaft in a 2008 Corvette LS3 M6. The camshaft installation was no too difficult and pinned the crankshaft. Replaced the valvesprings with the LS9 valvesprings and the Corvette idles better than stock. With the 230 degree duration on the exhaust side, the exhaust note is much deeper. Along with the camshaft, the rocker arm bearings were replaced with the Comp Cams Trunion Kit that uses sealed bearing cages. In the end, the Corvette picked up 33 rwhp and 18 ft-lbs of torque over the stock LS3 Camshaft. The mid and upper rpm range power increase is very noticeable. With the NPP Valves shut, the Vette is very quiet and the idle qualities are very smooth.

New Online Store

2011-02-21T19:13:00.000-08:00

I have launched my new website and includes a parts ordering system. Also, I am adding new parts daily and do not hesitate to ask questions or forward comments.

http://www.shopreckartperformancetuning.com/

2009.5 Pontiac G8 GT

2011-01-31T03:30:00.000-08:00

Finished another cam installation on a 2009.5 Pontiac G8 GT. The list of parts included:

Custom Grind Cam
LS6 Oil Pump
PRC Dual ValveSprings
7.400" Pushrods
Cometic 0.040" Head Gaskets
NGK TR6's Spark Plugs
MSD Sparkplug Wires
DOD Delete
In Motion Timing Set
LS7 Lifters
Comp Cams Trunion Upgrade

The result was a stealth sounding system and idles great. Since the upgrade, the valvetrain is much quieter over the DOD hardware. The idle is very smooth and cruises very well. There are points that the cam is undetectable under light throttle and once you roll in to the throttle, the torque increase is immediately felt. At WOT, the power feels great and pulls passed 6K rpms. After a few tanks of gas, I will be nice to see what the fuel mileage is compared to the tweaked DOD. The G8 dynoed 294 rwhp bone stock and gained 113 rwhp with cam and headers. The chart below has 3 runs: stock w/cai, stock with cai/tune and cam/headers/cai/tune.

2005 Pontiac GTO

2011-01-21T17:22:00.000-08:00

I recently tuned a 2005 GTO with 19K miles on the odometer. This GTO was bone stock and was a 6 speed manual. This was a great opportunity to get a base line dyno pull to gauge future mod gains. While it was on the dyno, I went ahead optimized the air/fuel and timing. The GTO did gain power and has the stock air filter. The torque management was tweaked and added to the throttle response even though it is a manual. Recently, the owner added the Vararam CAI and look forward to seeing the gains.

2008 Corvette with the A&A Corvette Supercharger

2011-01-21T14:25:00.000-08:00

Just completed another Supercharged Jetstream Blue Corvette dyno tune. This Corvette used the A&A Corvette Supercharger and was running the 3.6” pulley. The Corvette also had the Dynatech Headers and required a smaller pulley to maintain the same level of boost. The initial run was 545 rwhp and 508 ft-lbs of torque and was the result of previous tuning elsewhere. After the Corvette was tuned, the ending measurement was 590 rwhp and 542 ft-lbs of torque. The Corvette had 5 degrees of knock on the initial pull and was too lean. After some extensive fueling and timing adjustments, the Corvette runs much better and is getting the power that is associated with A&A Corvette. The stoich values were changed to reflect the ethanol based gasoline in Texas.

2004 Corvette Z06

2011-01-21T14:18:00.000-08:00

I had the opportunity to dyno tune a 2004 Corvette Z06 with a Procharger making 5 pounds of boost. The initial run was 495 rwhp and 419 ft-lbs of torque. After some dyno tuning with HP Tuners, the ending pull was 510 rwhp and 435 ft-lbs of torque. The biggest gain was in the midrange and 35ft-lb gains were realized. After the tuning was complete, the Z06 has a lot better performance throughout the entire rpm band. This was impressive since the Corvette was stock, except for the supercharger.

2002 Camaro Z28 Cam Install

2011-01-15T06:44:00.000-08:00

Just finished a cam install on a 2002 Camaro Z28 and the initial dyno reading was 299 rwhp and 325 ft-lbs of torque. The parts for this project included:

Texas Speed Torquer 2 Cam (232/234 0.598/0.598 112 LSA +4)
PRC Dual Valvesprings with Titanium Retainers
7.400" Hardened Pushrods
Texas Speed Ported LS6 Oil Pump
LS2 Timing Chain
Pacesetter 1 3/4" Longtube Headers
Texas Speed Offroad Y-Pipe
NGK TR55 Spark Plugs

The final results were 385 rwhp and 376 ft-lbs of torque. That was an increase of 87 rwhp and 51 ft-lbs of torque over stock. Also, this was using the Flowmaster 80 Series Muffler and a stock throttlebody. If both of these were upgraded, 400 rwhp is possible. During the assembly of this engine, assembly lube was used to minimize startup friction since new parts were installed. At the same time, this was a great time to replace the belts and hoses and the Camaro should be in good shape for a long time.

Installations for the coming weeks

2011-01-08T18:19:00.000-08:00

I have a couple of the vehicles that will be upgraded over the coming weeks.

1. 2002 Camaro Z28 M6 - Texas Speed Torquer 2 Camshaft, PRC Spring Kit and Texas Speed Headers and Y-Pipe.
2. 2009 Pontiac G8 GT - Custom Grind Cam, DOD Delete, PRC Springs and LS3 Intake Valves.
3. 2000 Camaro Z28 A4 - LS7 Lifter replacement due to low pitched knocking at idle.
4. 2008 Corvette LS3 - Supercharger Installation with the LS9 Cam.

2011 Camaro 2SS Dyno Tune and Vararam Install

2011-01-08T18:12:00.001-08:00

I had the pleasure of working on a 2011 Camaro 2SS LS3 and was absolutely gorgeous. It was an Imperial Blue Metallic with the Cyber Grey Stripes and had 3700 miles on the clock. The plan for the day was to make an initial dyno run and it put down horsepower figures in the normal range. After that, we installed the Vararam CAI “No Tune” and performed a retune. Since the gas in Texas contains up to 10% Ethanol, the Camaro has KR in stock form. With the Vararam, it was worse. After the tuning, the Camaro finished the day at 394 rwhp and 400 ft-lbs of torque. That was an increase of 26 rwhp and 30 ft-lbs of torque.

2002 Corvette Z06

2010-12-22T03:27:00.000-08:00

I had the pleasure of tuning a 2002 Electron Blue Corvette Z06 with 18K miles. The Corvette was still new and the initial pull was 347 rwhp and 348 ft-lbs of torque. After tuning, the results were 373 rwhp and 369 ft-lbs of torque. That was a 26 rwhp increase and is a noticeable difference. There are big plans for this Vette in 2011 and stay tuned.

A&A Corvette Supercharger Year End Sale

2010-12-22T03:24:00.000-08:00

A&A Corvette is having a supercharger sale and lowering the price from $5,200 to $4,750 for their C5/C6 Kits. This includes all items like fuel injectors, fuel pump or boost-a-pump, belts, and all other items required for the installation. As for the installation, the kit installed is $5,999 until the end of the year.

2008 Silverado 5.7L

2010-12-17T14:05:00.000-08:00

Just finished tuning a 2008 Silverado and come stock with a 4.8L Engine. The engine was replaced with a 5.7L LS1 and the upgrades were a PRC Stage 1.0 Heads and Texas Speed 220/220 Camshaft. The final results were 397 rwhp and 415 ft-lbs of torque. The converter was replaced with TCI Converter rated at 3600 rpm.

Supercharged 2008 Corvette LS3

2010-12-11T19:14:00.000-08:00

The next project will be supercharging a 2008 Corvette with the LS3 and Manual Transmission. The kit will be from A&A Corvette and includes:

Vortech V3 Si-Trim Supercharger
Air to Air Intercooler
Siemens Deka 60 lb Fuel Injectors
Kenne Bell Boost-a Pump
Turbosmart Blow Off Valve

The Corvette will receive a few extras that will further optimize the supercharger. The first upgrade will be a camshaft from a Corvette ZR1 (LS9). The camshaft specs are 211/230 0.562”/0.558” 122 LSA and will idle better than the stock LS3 camshaft. This will help the cylinders exhaust better and make more power. The target is 600 rwhp with this build and wanted it to drive like stock. The valvesprings will be upgraded to the Comp 918’s and Chrome Moly Pushrods. The build will retain the stock exhaust manifolds and if needed, they will be upgraded t the ZR1 exhaust manifolds. The parts should be here in a week and plan to start the upgrade before Christmas.

1999 Corvette Coil-Over Upgrade

2010-12-11T19:02:00.000-08:00

I just completed the coil-over springs/shocks upgrade on a 1999 C5. The previous suspension components included Koni Shocks and Z06 Leaf Springs. The upgrade was easy and really gives the Corvette a truly independent suspension. The Corvette rode much better and will be seeing some track time soon. The parts used were Pfadt Engineering shocks and springs. The shocks are 16 way adjustable and the ride height is adjusted using spanner wrenches. This is what the factory Corvettes should have come with and cleans up the bottom of the car with the leaf springs removed.

Electrical Harness Manufacturing

2010-12-02T08:09:00.000-08:00

I have started manufacturing wring adapters for various applications. I am starting with the 102 mm MAF Conversion Adapters and IAT Relocation Harnesses for G8/Corvettes. I will be progressing into the Heated O2 Sensor Extension Cables and various other designs. All harnesses use GM/Delphi Weatherpack Connectors, automotive grade wire and expandable sleeving. I will be stock a few types and if a custom adapter is needed, feel free to ask and we can work out the details.

Dyno Day 11/20/10

2010-12-02T08:04:00.000-08:00

I had the pleasure of having a dyno day and getting to extensively use the dyno on various cars. There was an excellent turnout and dynoed 13 cars. Vehicles ranged from 1,033 rwhp Mustang Cobra, 715 rwhp Pontiac Trans Am SC, 675 rwhp Mustang with 200 shot of N2O and many others including Heads/Cam and stock vehicles. It was great weather and met many new people. I appreciate the turnout and looking forward in doing this again.

2003 Corvette and 2002 Camaro Dyno Tunes

2010-11-13T10:29:00.000-08:00

Dynoed tuned a few cars this week that includes a 2003 Corvette A4 and 2002 Camaro Z28 A4. Both gained in excess of 20 rwhp with tuning alone. Since both were automatic transmissions, the drivability was much improved in the shifting characteristics of the transmission. The stock tuning bogs the engine down and the shifts are too soft. These were also baselines for future modifications and the best scenario is to use the same dyno to verify the gains against.

Both are running well and looking forward in continuing the modification process. Both are starting the bolt on modifications like LT Headers, Mid-Pipe and Cold Air Induction Kits.

102 mm MAF install on a 1999 Tahoe

2010-11-13T10:22:00.000-08:00

Just finished tuning a 1999 Tahoe 4x4 with a 421 cubic inch engine using a Dart Block, Callies Crankshaft, Edelbrock Intake, Edelbrock 90 mm Throttlebody, 102 mm Mass Aiflow Housing, and the LS3 MAF Sensor. Initially, the Tahoe would not stay running for more than 10 seconds. With the addition of the larger MAF, the fueling was off considerably since the MAF size increased by 85%. The fueling was adjusted using the ECM Lambda Pro Wideband that utilizes a NTK Sensor. After a few fueling adjustments, the Tahoe runs great and the 421 needed the 4” intake tubing and the supercharger will be added later on. The plan is to dyno the Tahoe and record the base line data prior to the supercharger install.

1998 Camaro Z28 M6

2010-10-31T03:31:00.000-07:00

This was a LQ9 build that utilizes the LS3 Heads, LS3 Intake Manifold, LS3 Fuel Injectors, TSP 1 7/8” Long Tube Headers, Comp Cams 236/242 0.650/0.650 114 LSA Camshaft and 408 Cubic Inch Engine. The compression ratio was 11.1 and put down some nice dyno numbers. After dyno tuning, the Z28 put down 516 rwhp and 507 ft-lbs of torque. This was through a M6 transmission and Ford 9" Rear End with 3.90 gears. At the time, speed density was the preferred method of fueling and is working very well. The custom operation system from HP Tuners requires the use of a 2 bar MAP sensor since the 1998 PCM is a different PCM that was is used in 1999+ vehicles.

After dialing in the pushrod length, the valvetrain noise is no existent. After using a Comp Cams Pushrod Length Checker, 7.400” was the ideal length while using the LS3 rocker arms. With the F-Bodies, the IAT Sensor was reading a few degrees higher than ambient. It was in the low 80’s and a great day to dyno tune.

2009 Pontiac G8 IAT Relocation Mod

2010-10-29T09:39:00.000-07:00

The Pontiac G8's suffer the same IAT Sensor (Inlet Air Temp) heat soaking problems like many other production vehicles. The IAT/MAF is located on top of the upper radiator hose and gets heat soaked. What is problem? There are several tables in the VCM (Vehicle Control Module) that uses the IAT as the axis. In turn, timing will be the larger effect of IAT heat soaking. The problem lies in the air temp reading a value that is not correct. The housing, in which the IAT resides, absorbs heat and that is transferred to the IAT Sensor. By relocating the sensor from the heated areas of the engine, the temp readings become more accurate.

In this particular G8 GT, I relocated the IAT Sensor to the AFE Dry Filter and works as advertised. The temps are 5 degrees over ambient during cruising conditions. During stop and go, the temps do rise a little. Once moving, the temps drop fast and are far more responsive to the actual air temp.

GM pulls ignition timing starting at 86 degrees. In theory, hot air contains more energy and needs less timing during the power stroke. This is only true if the air temps are correct. With the IAT in the stock location allows timing to be pulled and there is a loss in power. On the dyno, this is easily measured and the effects are noted. The mod is cheap and easy to install.

2010 Camaro 2SS Dyno Tune

2010-10-22T20:39:00.000-07:00

I had the opportunity to dyno tune a 2010 Camaro SS with the L99/A6 Powertrain. This was the 2SS and was black. The Camaro already had the American Racing Headers and Catted X-Pipe installed. After tuning, the Camaro put down 367 rwhp and 383 ft-lbs of torque. Not bad since these dyno 320-330 rwhp in stock form. The A6 was in need of tuning and that was accomplished. The next mod is a cold air induction system since the stock airbox is really restrictive. As with all GM vehicles, the knock retard need to be eliminated and that takes the right combination of fueling and spark advance. I am finding the L76/L99 Engines do not like the timing the LS3 does. The torque management reduction strategy is the same as the G8's and to make it dependent on load.

2001 Supercharged Corvette M6

2010-10-21T21:54:00.000-07:00

I had the pleasure of tuning a 2001 Corvette M6 that has huge upgrades in power. The Corvette has the LS7 Engine Block, L92 Cylinder Heads, L76 Intake Manifold and the Vortech V7-YSi Supercharger. The boost level is 13 psi and the overall compression is 9.5:1 with dished pistons. The Vette also has the Jessel J2K Rocker Arms and a Ron Davis Radiator. The final dyno numbers were 809 rwhp and 675 ft-lbs of torque. The traction is a major issue and need better tires. I decided to install the Vararam 102mm MAF Housing and LS3 MAF Sensor. Overall, the Vette drives great and is a blast to drive. The original tune utilized speed density and that was scrapped for the MAF Tune.

2009 G8 GT Header Install

2010-10-16T12:07:00.000-07:00

I will have the pleasure of installing Kooks Longtube Headers and the X-Pipe with Catalytic Converters on another 2009 Pontiac G8 GT. This was the one I dynoed back in May and installed the AFE Cold Air Intake. The exhaust will mount up to the stock axle back mufflers and expect nice gains from this upgrade. I will post up the results by the end of next week. The scheduled installation day is October 21^st.

2002 Corvette Z06 Twin Turbo

2010-10-08T08:15:00.000-07:00

I had the pleasure of dyno tuning a 2002 Corvette Z06 with the APS Twin Turbo System. The Corvette is using the HP Tuners 3 Bar Speed Density Operating System. The Vette has a 408 cubic inch engine, 223/223 0.600"/0.600" 115 LSA Custom Grind Camshaft, L92 Heads, L76 Intake Manifold, Methanol Injection and, of course, Twin Turbos. After dyno tuning the Vette, the Vette put down 855 rwhp and 973 ft-bs of torque at 16.5 psi. Even at 8psi, the power is amazing at 671 rwhp and 721 ft-lbs of torque. The beauty of this set up, it drives like STOCK around town. The cam selection made this possible and works extremely well under boost. As of today, this is the highest power on the dyno and no issues.

Maxing out the MAF Table

2010-10-02T16:51:00.000-07:00

If you are maxing out the Mass Air Flow Table with your current modifications, increasing the MAF size will lower the frequency. I have had several vehicles max out the MAF and these were 400+ cubic inch engines. They were using the 85mm MAF and installing a 102 mm MAF allows the continued use of the MAF Sensor. I have installed several of these and they do work. I use the Vararam 102 mm Housing, GM LS3 MAF Sensor and a 5 Wire Pigtail for the conversion. I have these at my shop.

1999 Corvette M6 Drivability Issues

2010-10-02T16:35:00.000-07:00

How cylinder heads are ported does make a difference in how the car performs. It is best to choose the cylinder heads and then spec out a cam that will work most efficiently. For instance, the 1999 Corvette M6 that I have been tuning for some time was experiencing low end drivability issues and not making the power it should be. The Corvette has a Comp Cams 232/234 Camshaft, LG Motorsports Longtube Headers, MTI Stage 3 241 Heads, FAST 90 mm Intake, 90 mm Throttle Body and a K&N Air Bridge. It put down 421 rwhp and 388 ft-lbs of torque. This a little low on power and the fueling was inconsistent during light throttle and at idle. The Long Term Fuel Trims (LTFT) was maxing out at +25% on both banks and overcorrecting the fuel trims. At first, this could have been an intake leak. Tried another FAST 90 mm Intake and the result was the same. The MTI Heads were extremely ported, more suited for a 400+ cubic inch engine, and experienced low port velocity on a 346 LS1 Engine. At this point, I suggested replacing the heads with Livernois Stage 2 Heads milled to 11:0 compression static ratio. After tuning, the results were much improved at 443 rwhp and 401 ft-lbs of torque. The drivability is much improved and you can feel the increase in torque and the gains were throughout the entire rpm band. This Corvette is autocrossed and should perform much better.

2008 Corvette M6

2010-10-02T14:33:00.000-07:00

I had a little down time today and decided to dyno my 2008 Corvette. The last time I dynoed it, it put down 381 rwhp and 372 ft-lbs of torque at approx. 5K miles bone stock. The car is still stock and with the mileage at 16K miles, it put down 393 rwhp and 384 ft-lbs with the stock tune. After tuning, the end result was 407 rwhp and 401 ft-lbs. The midrange torque is greatly improved and no knock retard. The AFR was 12.6 and the LS3 likes to be on the richer side. Since the gasoline mixture contains up to 10% ethanol, the AFR has to be a little richer than normal gasoline. The timing was 20 degrees at the torque peak (4600 rpm) and 22 degrees at the horsepower peak (5800 rpm). The torque management has been disabled and allows for excellent drivability and increases the fun factor.

2005 Mustang GT Tune

2010-09-30T13:33:00.000-07:00

I finally got the opportunity to tune a Ford Mustang and it a lot different than the GM Vehicles. In some ways, Ford is better. One of which the fueling is based using lambda. This allow for faster tuning using lambda. Lambda is desired AFR/Stoichiometric Value. GM uses equivalence ration and this is the inverse of lambda. The Mustang dynoed 350 rwhp and 336 ft-lbs of torque. The Mustang has cam and headers.

GRRR8.net Sponsorship

2010-09-25T18:36:00.000-07:00

I am now sponsoring http://www.grrrr8.net/ and looking forward to the G8 and 5th Gen Camaro Clients. Please visit the site for great information for late model GM vehicles.

2004 Corvette A4

2010-09-24T12:35:00.000-07:00

Just finished tuning a 2004 Corvette A4 and dynoed 295 rwhp/324 ft-lbs of torque in stock form. The Vette received Ported LS6 Heads, Vengeance Racing VRX5 Camshaft (236/238 0.601"/0.605" 113 LSA), TPIS Headers and X-Pipe. The Vette dynoed 401 rwhp/385 ft-lbs of torque and this was through an A4 with a 3700 stall Torque Converter and 3.42 gears. The Vette also had the stock air bridge, intake manifold and throttlebody. The Vette is a beast on the street and hooks up great with 20's.

GM 6L80E Transmission TM

2010-09-21T17:16:00.000-07:00

One of the items I have been working on is increasing the performance level of the 6L80E. In stock form, the 6 speed is very sluggish and lacks much of the performance drivers are looking for. I use HP Tuners and the Transmission Computer (TCM) is very complex compared to previous systems. There are many directions that can achieve the same result and I lay out my approach. The Torque Management (TM) is very intrusive and must be scaled down. The way I approach tuning is to allow excellent driveability and a boost of performance at 50% or more Throttle Position (TPS). I use a progressive approach to scaling back TM. The more TPS, the more TM is scaled back. This allows the vehicle to perform that way it should.

2009 Pontiac G8 GT

2010-09-21T17:09:00.000-07:00

I had the pleasure of working on a 2009 Pontiac G8 GT with the L76 6.0 Liter V8 and equipped with the Hyrdamatic 6L80E 6 Speed Transmission. The mods included Livernois Stage 1C Camshaft, LS3 Intake Valves, Displacement on Demand Delete Kit, Kooks Longtube Headers/X-Pipe and Magnaflow Mufflers. The G8 GT dynoed 295 rwhp in stock form. After the mods, the G8 GT dynoed 412 rwhp. That is a 117 rwhp gain and idles/drives like stock.

Welcome

2010-09-21T17:02:00.000-07:00

Welcome the Reckart Performance Tuning Blog. This will contain information on current tuning and installation projects. Also, I will have information on experiments for various vehicle configurations.