watt:
John at Fabspeed was very helpful;,Autoquest in FL, is working both on r & p, and gears for gt4! The r & p should be ready for market in 2 months and very affordable. Sun plans on installing the r n p.
Gavin at Autoquest is highly knowledgeable and most helpful. They have hot rod bits for rs and gt3, which Sky may apply to his next rig.
Gavin points out that gt4 has much weaker rear suspension geometry than gt3, which constricts the negative camber build needed in a corner; this issue is not something the dsc controller can resolve.
Good news on R&P. I hope it will be top quality. This is a part under huge stress due to the internal geometry and failures of aftermarket parts here are common. Guard Transmission had to quit this effort due to multiple failures from their suppliers and focus just on gears instead. Did they mention what ratio would be available?
WRT to the GT4's strut rear suspension, I was expecting this to be a real weak point of the car. However, I have found rear grip and tire wear to be excellent. It's the front axle (from the GT3) that has trouble gripping and preserving tires (wearing the center of the tread - lower pressure helps, but still a problem). At the track, I am on pace to go through 3 or 4 sets of front tires for every rear (even with lots of camber). I think the biggest issue is the front tires are too narrow compared to the rear and no matter what alignment you run this ends up being the bottleneck.
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16 Cayman GT4, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi