in boosting a 90 civic si with the d16a6 do you know how to deal with the map sensor ?????

 

Yeah use a SMC plus. I happen to have one for sale for $80 shipped. It deals with your map sensor and also allows you to control your injectors.

 

or put some check valves in line so it lets out the "positive air".. or a missing link.. search the Forced Induction forum

 

I was just reading on that.

You can try Synapse's "missing link" which installs between the throttle body and MAP sensor ..$75 bucks or so.

You can try Greddy's E-Manage engine control unit manager, or cybernations electronic L&F modulator...