I have a Summit Racing fuel pressure guage that I have laying around from my Honda. It reads 0-60psi. Is that enough? or what is the stock fuel pressure of s4 t2?

Jay Kim

 

It'll be enough. Fuel pressure when the ignition's off and the engine's not running (i.e. manifold pressure = atmospheric pressure, gauge reads zero) should be ~36psi. It'll be less than that under vacuum and higher than that under boost.

There are instructions for testing the fuel pressure on page 4B-69 of the FSM.