building up type r

[marshall12395]

so im building up my type r and i wanna now if i need high compression vavle or standered compression? my build is
Pro Series Valve Set
68mm Billet Pro Series Throttle Body
Tuner Series Valve Spring Set
Pro Series Stage 2 Camshaft
titanium Retainer Set
composite Fuel Rail
Pro Series Intake Manifold with cold air intake
3 inch exhaust with 421 headers
almost of it is all skunk 2

 

[99sidude]

Standard compression is probably fine. You will want to choose pistons to run around 11.5-12.5:1 with those cams. Make sure to get a GOOD header, and tune the crap out of the thing on a dyno. I wouldn't waste your money on the fuel rail. The stock one is just fine for your build. Spend that money on bigger fuel injectors.

 

[marshall12395]

so changing my pistons for higher compression?? and i got 421 headers and i putting a 3inch exhaust. what kind of fuel injectors should i use??? im getting it tuned by well know shop. you think my car can handle stage 2 pro series cams cause alot of people are telling me it cant.this build should make some jam???

 

[99sidude]

There are good 4-2-1 headers and there are bad. You want to make sure you have a long tube design with a 2.5" collector. Any smaller and you restrict what these cams can do. I would go with 400cc+ injectors. You can change the pistons, get a thinner head gasket, and/or deck the head to increase compression. Google a B Series compression calculator and go to town. Stock internals (bottom end) will handle this no problem.

 

[marshall12395]

ok thanks alot