Quote:
Originally Posted by cycleguy55
Port matching of the Torker II may be best, but how critical is it really? How much HP or torque are you going to lose by not port-matching it?
Much has been made of using 'steps' on exhaust primary tubes as an anti-reversion measure. Could similar benefit be realized on the intake side?
Anybody have any experience or insight?
EDIT: Apparently Paul Kane (High Flow Dynamics) has some thoughts on this:
"Without port matching, in most builds the amount of "power loss" is not substantial for most builds. If it were more substantial, you can bet that Edelbrock would not have risked offering the intake in its current form since it would, in effect, be sub-standard when compared to the other brand intake manifolds with which it competes. Frankly there is more power to be gained from cleaning up the Victor's plenum than there is the runner mis-match, but sometimes indeed every last hp is paramount--or engine application matters too--and a Victor port match can be a big plus." Source: Victor Intake Port Matching - 460 Ford Forum
The net of all this: Bolt that Torker II on 'as is' and go! |
The cylinder head port should be larger than the manifold port, if a correct match cannot be obtained.
Any small step can help minimize the reversion pulse out into the plenum.