DeMobBoss wrote:Question now is do we use a push button type STI clutch or go more serious and go synthetic clutch?
I'm a bit late to the party here but I personally would be loathe to use a conventional 3/4/5 puck button clutch in an AWD car, especially if you're leaning towards one with an unsprung centre. The amount of shock it puts through the driveline is not insignificant, and in an AWD car you can't just give it a few extra revs and let the tyres slip like you can in a 2WD car, the shock has to be absorbed somewhere and if it's not making it to the space between your tyres and the road it's going into your driveline. Unless you're happy to have heaps of shuddering or at least a very short-lived clutch, you can't slip it so moving from a standstill at a more sedate pace is extremely difficult. For those wondering, a "button clutch" doesn't mean you press a button to put the clutch in/out, it refers to how the clutch itself is built. It also describes how it works... it's either ON or OFF, there's not much in between

Maybe consider going for a multi-plate clutch with full-face clutch plates, or some of the more recent multi-puck clutch plates that can apparently tolerate being ridden/slipped. This should give you enough clamping pressure to hold 350-ish kw easily (a single plate would need something approaching a 4000lb pressure plate to do that I'd imagine) without having to resort to button-type clutches, and will be much more friendly on your driveline and make for a much more relaxed daily driver. You can get twin-plate clutches that will hold 1000hp and drive like a stocker. If it's going to be primarily a track car and you're building the driveline to suit though, go for gold lol.
Either way, nice project, I'm keen to see it "finished" - if there is such a thing!