will a 70mm throttle body be good for my setup, will i see good gains?..(i am considering hte ericksracing TB..)
my total setup is a B18c1 with JDM ITR pistons, skunk2 stage 1 cams, skunk2 cams gears, skunk2 intake manifold, USDM DC 4-1 headers, testpipe, greddy b-pipe, ultraflow muffler, ITR throttlebody, Injen CAI..

 

70mm is IMHO a little beefy for those cams. Might set your sights at 68 or so instead.

 

Remember it's about the speed of the air as well as the volume. 70 mm does sound a little large for your setup.

 

ok thanks.. will it hurt to get a 70mm throttle body instead of a 68mm throttle body?.. i currently have made 188whp and 129 wtq... will i be able to reach 195~200whp with a throttlebody and more tuning?..