Hy35 max boost
Fibula bone
Aug 16, 2009 · Install a Pyro and boost gauge set. Adjust your boost to allow about 12 PSI max and your set. Use the gauges religously and dont run the Exhaust temp past 900 Post turbo or 1000-1100 preturbo. The chip will clean up all the nasty gremlins that are bothering the ECM (computer) and you wont see the ses light any more. (At least not for the same ...
The 4 would also work, and lag would be minimal. If you look at the HP for a 4, they show 177 max. My buddy is making 230 with one on a 3 cylinder Geo motor, and it works really well. The 55 would be way too big. Maybe I'm reading the charts incorrectly. A pressure ratio of 1.5 is a boost pressure of 7.35 psi at sea level, right?