ts inlet manifold and plenum
A bit of technical advice please for my CF3. i have read the posts about increasing the size of the throttle body and the limited gain, but where in the system is the restriction? Assuming the general inlet to the throttle body is free flowing, is the restriction the cylinder head or the manifold/plenum. I am not suggesting that I try and design and fabricate my own plenum as this is very complicated. Does anybody know of an alternative to the plastic variable plenum for added performance or should I just use the plastic one and consentrate on the head? Many thanks.