Knolow

Congrats on the cars.

Who makes the GT4 Clubsport exhaust system? How different is it from the Cargraphics Full Race Exhaust System (which they claim as cup version)?

Also if the GT4 had the IPD plenum, larger throttle bodies, full Cargraphics race exhaust system, how different would the Dyno results be from the GT4 Clubsport?

ExMB

Looks like I found my answer - almost. It looks like its a separate piece at least.

gmgracing

We haven't had enough thorough time with the Clubsport to know for sure what modifications have been done to the exhaust but from the exterior it appears as though it is using the standard Cayman GT4 OEM exhaust. Here is an OEM unit behind our GT4.

DSC_3349 by GMG Racing, on Flickr

Mvez

Thanks. Wow, I'm A bit surprised by how much rear toe they put in the car. 17' is about .28 degrees per side, in race trim. Guess I'm used to the old 987 spec of almost no rear toe.....lol.

Knolow

Seriously thank you for taking the time to reply and post the photo. Your photo does help me see that they appear to be the same. I'm definitely curious as to the full setup of the Clubsport i.e. Header type, whether or not the Clubsport is using larger throttle bodies etc

I plan on using my car for competing in time trial/time attack which my current track car is an E92 M3. I want to base my modifications off of the Clubsport so I can have a relative baseline for cars that see a lot of track time.

ShakeNBake

In case people missed the detailed dive into the differences, here's a link:

https://rennlist.com/forums/gt4/9050...tics-west.html

All I can see w/r to engine is that they put more oil in it, solid mounts, and that it might have a different exhaust manifold with 100cell cats that better survive track abuse. 93 Octane?

Suspension is very different. GT3 uprights with slightly different geometry, sphericals, links, KW shocks, springs, sways. 3.5/3.1 camber F/R, toe in F/R

Brakes, completely different - out of a cup car. PFC hardware on the axles, and on and on. Mostly seems like the motivation here was that it's compatible with the Cup uprights and 18" wheels, and motorsport tuning

It seems small in comparison to GT3/Cup differences which are vast (starting with the fact they don't even share a body or drivetrain).

Crazy Eddie

Unless my eyes are deceiving me it looks like the GT4 CS has substantially thicker Rear Drop Links as well ?

gmgracing

Some more interior pics here!

Knolow

Thanks for explaining the differences and providing the link.

gmgracing

We have had a few more GT4 CS's through our race facilities in the past months. Three were lined up last week so it made for a good opportunity to take a couple pictures.



Close up of the front brake setup.

Buteo

Was your yellow car at Vehicle Vault outside of Denver, Colorado last week?

gmgracing

You are most likely correct, it is up for sale now.
https://rennlist.com/forums/vehicle-...mg-wc-gt4.html


A point worth noting, we recently installed a passenger seat into one of the ClubSport GT4's. To facilitate the addition of an extra seat we utilized our GMG Seat Base (click for details).

Crazy Eddie

Dang that is so cool

gmgracing

This weekend we will be out at Thermal to test out some spring rate changes on one of our Clubsports. The GT4 Clubbport is proving to be ideal gentleman race car.

gmgracing

Here is an interesting contrast between one of the Clubsports and our GT3R.