I was wondering if their would be a big difference if any at all between the gains of ported(60 mm) crx Si intake manifold and the skunk2 intake manifold? The setup i have so far is a crx dx with mpfi swap, 2.5 inch custom exhaust,invidia muffler, megan racing header,obx test pipe and k&n filter intake. I was given a ported si intake manifold and was wondering should I just get an acura ls throttle body for that or just buy the skunk2 manifold and ls throttle body i seen on ebay recently.

 

If you use a manifold that allows more air to flow through I think you should also upgrade your cams and springs in order to get more lift on your valves to let the extra air get to your chambers, then with more air you should also upgrade your fuel system to allow more fuel in as well, i may be wrong just the way i think it should be done

 

That sounds correct

 

thanx for the additional advice guys. I agree but ur not answering the question. Would there be a major difference if anyat all ; if I was to use a 60mm ported SI manifold with ls throttle body or a standard skunk2 intake manifold with ls throttle body? which do you think would be better?

 

no because your valves dont lift enough to let the extra air in