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View Full Version : High boost on internal wastegate?


HYPNOTIK
05-09-2011, 01:14 PM
I have a Forced Performance TD06 20g on my car with a HKS actuator and a Blitz Dual SBC Spec-R boost controller. My problem is that I cannot get it to HOLD more than 1.1bar. It will spike to 1.3-1.4bar then fall back to 1.1. I thought maybe the internal wastegate wasn't big enough but is seems that it should overboost instead of doing the opposite. I talked to another guy with the same turbo and he has the same problem.

I remember seeing this same turbo on a SR in a R32 skyline and they were making 458whp at around 1.7 bar so I know this turbo is capable but I can't seem to figure it out. Forced Performance advertised this turbo as capable of 29psi.

What is the highest boost some of you guys have been able to run on a internally wastegated SR?