anybody upgrade your exhaust valves?
#19
There's lots of other things to do first...
My head has been ported and polished. The porting is extensive around the valves on the inside of the combution chamber. This has lowered my compression ratio significantly. I run 26-28 lbs of boost on 91 octane with no issues. The 24x10.5x4 FMIC might help a little. My intake manifold has had the lower mounting bolt tubes drilled out and it is ported and polished and enlarged. I have also done a big bore on my throttle body with a smaller diameter rotating pin and thinner butterfly. Has all this been worth it. Well, this stuff and a lot of other pieces has pulled 420hp/475tq at the wheels. I do have a tubular manifold and GT35R to mount shortly. I have personally never heard of anyone replacing the valves on the AAN.
Hap, talkin dahkine floooow in Evahboost
Hap, talkin dahkine floooow in Evahboost