i got a standard D16 vtec motor in my civic. It also is turbocharged with a Greddy turbo. what is the recommended amount of boost i should run?

 

5 lbs

 

anytime you add forced induction you should be using a fuel managment device of some sort......... hondata, chrome, SAFC/VAFC, etc etc

you should have the car dyno tuned and your tuner should know what to safely set the boost at for your car by what modifications you have done to accommodate the turbo (ie fuel injectors, fuel pump, internals), and also the size turbo your using.

The amount of boost you can run is irrelevant, its how much horspower your car can safely handle.

If you have a T25 turbo you can run 30 PSI out of it and get the same amount of horsepower as if you were using a GT35R and running say 8lbs of boost. Reason being is that turbos are sold by the amount of horsepower they can produce, not the amount of PSI the can produce. A T25 turbo running a 30lbs of boost become inefficient because its not designed to spin that fast and starts getting too hot and no longer producing horsepower.

So without knowing the size turbo you are using, what internals you have (I ASSUME stock internals) and other accompanying mods you have for your forced induction set up no one can truely give you a safe amount of boost to run your car at.

 

thanks for the heads up, i'll prolly go get it dynoed when i get time