I just installed a T3/T4 turbo on my 93 B16A2 civic and when I hit about 5 lbs of boost the car cuts out like I have a rev limiter.when I let off the gas it blows off and I can excelarate again. Any thoughts? Also what fuel pressure should I be running for about 8 lbs of boost?  

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my guess is your hitting fuel cut (where your injectors just cant put enough fuel for the air) or your ecu needs to be flashed for the turbo.  Altho i have no experience with hondas whatsoever so i might be wrong.  

you are totally wrong its the map sensor you need to put a few check valves between the manifold and map sensor. the map is seeing boost and is not liking it if you put the check valves in there than it will not see boost and go on about its buisness