I am one of the guys that Deen is referring to. I have the Psi-Fi GTS58 kit. The "problems" with the turbo were not associated with the turbo at all. I just needed to get the proper supporting mods on the car to reduce the turbo spool time. This included a larger FMIC and a full 3" exhaust. I also decided to go with 750cc injectors.
Without the exhaust and FMIC the full spool was 3800 - 3900, ouch. With the upgrades it dropped down to around 3400. All was good, with just the S2 injectors but when I bumped up to the 750cc injectors my clutch wouldn't hold at 24psi.
The best time I have had was 13.7@106 the day I picked up the car. This was with a lot of tire spin and all of the restrictions. I haven't been to the track since or taken it to the dyno but I would guess that the car is making 400+ HP and will do the 1/4 in the 12's. I am going to be getting an upgraded clutch and I hope to get to the track soon.
Right now their are two big turbo kits available. Psi-Fi and AGP.
Feel free to PM me with any questions.
|