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GMG Racing Porsche 996 WC Turbo 3.8 Conversion











This car has been coming to GMG for a few years now and was originally one of the first WC spec turbos that we built.

It was sold last year and the new owner decided to use it as a weekend track car.

Here is a recap of the build and most recently it received an engine refresh with a bump in power as well.

2003 996TT x50


Engine:

3.6 to 3.8 liter build by GMG, all work done in house.
GMG/Mahle Motorsport 3.8 liter pistons and cylinders with custom spec design and compression ratio
Custom Rods by Carillo
Tial Sport Custom turbos, built to GMG spec
GMG WC-GT Sport exhaust system with 200 cell sport catalyst
High Flow Injectors
High Flow fuel pump
GMG Sport intercoolers with silicon boost hoses.
Cup Car dual pick up high flow oil pump
Custom software calibration by GIAC
Rebuilt heads with 5 angle valve job /new guides /valves

Suspension


Moton Club Sport Dampers with GMG custom valving.

GMG Lower control arm monoball kit
GMG Adjustable thrust arm bushings.
GMG Bump and toe steer kit front and rear.
GMG Dog bones.
GMG thrust arms with anti dive and anti squat
GMG WC Sport Sway bar kit front and rear 3 way adjustable.

Clutch/Gearbox

Sachs Race engineering sport pressure plate with higher clamp load
Sachs Race engineering sport disc with metallic linings
GMG Lightweight flywheel
Numeric SSK
Cup Car Cables


Wheels

GMG WC-GT fully forged monoblocks 18x12 and 18x9

Brakes

Stoptech DRK rotors front and rear
Endless Brake Pads
Endless Brake Fluid RF650


Interior

GMG WC GT Roll bar
Sparco Harness
Fire extinguisher
Euro GT3/ Club Sport Seats in Leather

Engine Build Pictures:

















GMG Racing 996TT GT2 Exhaust Manifold



- These manifolds are made of the highest quality T304 (0.180) stainless tubing

- Offer a larger primary runner with a racing 3 into 1 collector that is TIG welded and then normalized to ensure years of use without cracking

- Laser cut hardened flanges for both head and turbo.


http://www.gmgracing.com/store/index...ifold-set.html

GMG Racing WC-GT 996TT GT2 Exhaust System



- Made of T304 stainless steel throughout the system

- Features 200 cell metal core catalytic converters which are OBD2 compliant.

- Offers a deep sporty sound without annoying drone or resonance.

- The system also offers a weight savings of 30+lbs over the stock system.


http://www.gmgracing.com/store/index...le-tips-1.html

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Suspension Components:

GMG Racing Adjustable Thrust Arm Bushings



- Significantly improves the handling and response

- Allows for adjustment for additional caster as well

- Can be used in all lower stock control arms as well as adjustable Porsche Motorsport Cup arms

- Eliminates unwanted caster changes in both front and rear suspension under acceleration and deceleration.

- Helps minimize the mushy feeling on the multilink factory suspension without added road harshness transmissions into the cabin


http://www.gmgracing.com/store/index...shing-kit.html


GMG Racing Lower Control Arm Monoball Kit



- Direct replacement part, installs in place of your rubber lower control arm bushings

- Significantly improve the handling and feedback from the vehicle.

- A must for track cars, very streetable with minimal road noise being transmitted to cabin

http://www.gmgracing.com/store/index...a-arm-kit.html

GMG Racing Dog Bone Kit



- Made of machined and hard anodized aluminum billet rod (6061)

- Only proper way to correct the rear suspension geometry of lowered 996 & 997 Porsche vehicles by offering a much wider range of adjustments.

- Lowered vehicles suffer premature tire wear as the factory eccentric rear bolts does not offer enough adjustment to properly re-align the vehicle back to desired specifications.

- 4 Links , 8 rod ends and 16 machined bushings.

- Can be used on daily driven street cars, the links do not transmit road harshness into the cabin


http://www.gmgracing.com/store/index...-bone-kit.html



GMG Racing RSR Style Adjustable Thrust Arm



- Made of CNC machined of aerospace grade aluminum

- Hard anodized for corrosion resistance from the elements during track use.

- Feature anti dive and anti squat geometry to help keep the roll center of the vehicle within specification during hard breaking and acceleration cornering.

http://www.gmgracing.com/store/index...hrust-arm.html


GMG Racing WC Front & Rear Bump Steer / Toe Steer Kit







http://www.gmgracing.com/store/index...kit-front.html

http://www.gmgracing.com/store/index...-kit-rear.html

GMG Racing Sway Bar




http://www.gmgracing.com/store/index...l-bar-set.html


GMG Racing Transmission/Gearbox

Transmission Mount



- Made of a high durameter urethane which limits the movement of the transmission during hard cornering or acceleration.

- Ideal for street cars used on the track or high horsepower street cars.

- Helps keep the transmission stable so you do not have a “money shift”.

- Very street-able, does not make noise or transmit unwanted vibration into cabin like a solid mount would.

- Bushing kit does NOT include the aluminum mount, it is shown for reference only.

http://www.gmgracing.com/store/index...ion-mount.html

GMG Racing Numeric Track Shifter Kit



Numeric Racing state of the art ball bearing adjustable short throw shifter for Porsche is setting a new standard in the performance parts industry.This incredible piece includes a multi-adjustable shift lever for various shifters throws and adjustable cable monoblocks for optional lever placement. Its evolutionary structure is made from aerospace grade aluminum, reinforced with stainless steel hardware and equipped with precision ball bearings to assure undeniable accuracy.

There is no modification necessary when installing the Numeric Racing's ball bearing short throw shifter. It is a complete direct replacement totally eliminating the OEM housing fitting perfectly under the center console. This short throw shifter is built for an everyday daily driver or a fully race ready GT cup car and installs in just under an hour by a technician. It is a one of a kind design that gives you the ultimate precision shifting experience. There is absolutely no other like it on the market and comes with a lifetime manufacturer’s warranty.

http://www.gmgracing.com/store/index...ifter-kit.html

GMG Racing World Challenge Roll Bar



An evolution of the factory Tequipment bar, our World Challenge bar is made of 4130 Chrome-Moly Tubing that has been tig welded and normalized for superior strength and rigidity. A common problem of the factory T equipment bar is that it requires the use of 1-piece fixed back GT3 style seats for proper leg room. If you are 5’10” and taller moving the seat back far enough is a challenge with factory bar. The GMG World Challenge Harness/Roll Bar offers these key features.

- Made of Chrome-Moly Tubing that has been carefully tig welded and normalized

- Designed to work standard reclining seats or GT3 fixed back seats offering drivers the ability to move the seat all the way back (Not possible with the factory
Tequipment Rollbar)

- Designed to work with clip in kit for harness (no need to drill holes in your floor to mount the harness anchors)

- Additional cross-brace and lugs for increased rigidity and strength

- Comes complete with all hardware to install. Mounts like the factory bar –(directly to seat belt anchors, no cutting required of car)

- Available in Standard Satin Black finish (optional color matching to your car available)

http://www.gmgracing.com/store/index...-roll-bar.html