GIAC 93 octane software is now available for the Porsche 997 GT2! First release software provides a reliable 600-615 HP and 615-625 TQ with upgraded headers and exhaust (Numbers are estimated crank based on 4-wheel dyno results and assume a conservative 15% drive train loss). The gain throughout the useable power band, 2000 to 6000+ RPM, is dramatic. Drive-ability remains as smooth as stock with the exception of the impressive pull at full throttle.

An official dyno plot generated from testing is attached. The dyno plot depicts three runs:
- GIAC performance software for 93 octane with GMG turbo-back exhaust and GMG headers,
- GIAC performance software for 91 octane with GMG turbo-back exhaust and stock headers, and
- baseline stock software with 91 octane with a GMG turbo-back exhaust and stock headers.

91 octane, kill and valet programs are also available. 100 octane (race mode) and other inter-cooler programs (91/93) are still in development and will be available within the coming weeks.

We are also still testing and developing software for other hardware parts. We will post additional dyno plots on our web site and this site as new options/ upgrades become available.

Thanks to GMG for first class hardware and providing the GT2 used to generate these dynoplots.

 

Question< why would you have a 4 wheel dyno for a 2 wheel drive car?

 

prob just a typo.

 

A Mustang has the front and rear rollers mechanically linked. You can have a RWD car spin both rollers. My guess is they would rather have the rollers linked to increase the load on the car....

 

The 997GT2 must see the same speed on the front or rear wheels otherwise the traction control, abs and other systems start to go nuts.



Since the masters at GIAC tuned the software for the World Challenge GT exhaust system and headers the power gains are proven. Everything is tuned to work together.
The exhaust system itself features 200 cell OBD 2 compliant catalyst, our proven cross over design with 2 aggressive 4" oval tips.
The exhaust offers a deeper tone at idle, improves the sound throughout the rev-range and does not have any cabin drone!!

For more info visit : http://www.gmgracing.com/porsche_exhaust_gmg_wc997gt2.shtml

We will have 100 octane race program and a intercooler upgrade specific program available in approx 2 weeks.


Testing and development will continue throughout the summer and fall.


The World Challenge 997 WC-GT2 is now available as a complete package that includes:

Software, exhaust and headers. (In stock and ready to ship)
Suspension upgrade which includes dog bones, toe steer kit, bump steer kit, thrust arm bushings and 997GT2 specific sway bar upgrade.
Track and street specific set ups that have been tested eliminate the guessing game with the alignments and corner balancing.
Safety includes a new design of the GMG GT harness/roll bar.(No cutting of the car or carpet required)
BBS Motorspot/GMG WC -3 piece racing wheels with a specific offset that is more agressive are available and in stock ready to ship.
Aerodynamics upgrades include a replacement carbon fiber rear wing extension that improves the rear down force on the car and is more pronounced than the factory unit, carbon mirrors and a more aggressive front chin spoiler assembly made in carbon is also available, pictures will be available next week.


Each complete World Challenge 997 WC-GT2 also recieves serial # badge to ensure its authenticity.

Parts are available individually or as a complete package.


The key to the 997 WC-GT2 is that all the components have designed, tested and proven, together they improve a very special car while still keeping it very reliable and driveable. The goal was not to build a race car but a better GT2....... But for those of you who want a GT2 race car rest assured we can accomodate that request also.



A complete product release will be available soon.





For more info or to place an order please email me directly or call the shop.

 

Wow Fabryce, that thing looks amazing! Cant wait for the sound clips!

Will you guys be testing it at Willow any time soon?

 

Those tips are really nice. We wait a vid now.

 

 

Colby,

You know we are always testing......... Whether its street cars at the track or the WC-997 GT3 Cup in World Challenge GT we are always looking to improve products and how they perform on the street and track.

We will be doing some testing on the west coast with the WC- 997GT3 and WC-997 GT2 in the upcoming months!


A video of the WC-997GT2 will be available shortly

I will post a link as soon as it is complete.

 

Boy do I. Three times i tried getting fly-bys of that car. Something was always being improved, engine, suspension, rollbar...

I can't wait for the sound clips! Although my GT3 may be coming to you guys sooner than i thought. If so i plan on meeting my shipping guy in So Cal and hopefully i can just see this monster in person! I'll call you tomorrow to discuss further

BTW: Phenomenal job on those tips!!!

 

Fabryce is correct about the 2wd vs. 4wd question. Our dyno is equipped with a pneumatic clutch that can engage or disengage the front rollers with a mouse click; however, without equal speed/load to all 4 wheels the 997 GT2 shuts down in the higher rpm. In addition to the front wheel speed, we also had to pay a lot of attention to keeping the intake air temps similar to what one would see driving their car on the street or track. As many of you know the inter-cooler design on these cars is made to capitalize on the car moving through air, but it does not really benefit from having fans placed in the front of the car with air velocities dropping off at a greater than exponential rate. Many dyno facilities combat this by setting inter-cooler fans at the rear of the car and blow air backwards through the inter-coolers. With the changes in the rear bumper cover of the GT 2 this is not effective, unless the rear bumper cover is removed or the dyno facility has a fan setup that can adequately blower air the inlets.

 

Hi Fabryce,

This is a really nicely setup car. We look forward to seeing it with the next step that we talked about.

 

Early in our testing of the 997 GT2, it was determined that an intercooler upgrade would play a key role in maximizing the potential of this platform. While we were able to make very respectable power increases with factory intercoolers, power was limited to retain safeties in the DME for high IAT and EGT temperatures. With moderate boost increases, we measured intake air temperatures in excess of 70 degrees Celsius! The car returned to GMG, where they developed another vital option for their GT2 “World Challenge” package. With the new intercoolers in place, we were able to truly unlock the potential of the 997 GT2 turbos and fueling, measuring great reductions in intake air temperatures. Our 91 octane test figures with GIAC software, GMG intercoolers, headers and exhaust yielded 73hp and 121 lb. /ft. of torque to the wheels over the factory numbers we measured. This is an extra 46 hp and 45 lb. /ft. of torque at the wheels that we were able to add over the GIAC software calibrated for OEM intercooler, aftermarket headers and exhaust. 100 octane testing was completed with gains of 97 hp and 139 lb. /ft. of torque over the factory figures we measured. There were file revisions that yielded higher numbers, but power was limited for the sake of the factory clutch and engine internals. We would like to thank GMG for their tireless efforts and efficiency in creating some great upgrades for this car and assisting us in making some very solid power gains.

 

We wanted take this opportunity to thank GIAC for all their help with the development of the GMG World Challenge WC-GT2 Perfromance Package. Withouth their support and enthusiasm for this project it would not have turned out so successful. Thank you again for all your support throughout the years.

We now have complete GMG WC-GT2 perfromance packages available and ready to ship. Please visit our website at www.gmgracing.com for more information.

 

Wow! Great collaboration, guys. Thanks for posting.