im on k20z2 engine (auto transmission)
like to turbo charge it with gt28rs turbo.
need advise on low comp piston and how high
shld i boost on this engine.
is there anyway to strengthen the auto transmission?
the gt28rs turbo is a very good turbo, good power, good spool, you can keep the compression as it is. dont boost more then 16psi to be on the safe side. i'd stay under 14psi but thats me. dont know a thing about auto tranny. good luck.
If your looking for reliability go with the amount of psi your tuner tells you to go with. He will know better than anyone else. You won't lose boost when the car shifts because of the auto tranny. Its a great advantage to have and you'll never blow you motor because of a misshift. Remember some of the worlds fastest cars are automatic.
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