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    Rank: RB20E
  • Birthday April 30
  1. I have a 1990 Nismo edition GT-R and I am still trying to wrap my head around the turbos...so I have a couple of questions I need help with. 1) What are the specs on the steel Nismo turbos and what are the sizes? 2) How much boost will they safely take? 3) Were they ever used on any other GT-R? Thanks for any help and greetings from Canada!
  2. Hey everyone, I am posting from Vancouver, B.C. I dyno'd my car to see what kind of power I could make at different boost settings. http://home.comcast.net/~pinea...y.wmv We used a wideband to monitor air/fuel, and found it flowed fuel and actually got richer under increased boost. This was contrary to what I had been told. I was informed I would need a uprated fuel pump in order to flow the fuel for a bar of pressure, otherwise it would run lean. So now that I know I can safely run a bar of boost, I am wondering if there is a rule of thumb for headgaskets. Is it safe to run 14.5 psi on a stock head gasket? I could use a little more, or should I dial it back to 12 pounds and stop asking for trouble?
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