View Full Version : enlarging manifold ports
got a spare inlet and exhaust manifolds, any one ever tried a diy job to enlarge the ports??? thinking about giving it a bash??
for best performance the manifolds should be an exact match to the head ports. imo
not on exhausts, a slightly larger manifold port helps prevent reversion. Especially if your running a turbocharger.
for best performance the manifolds should be an exact match to the head ports. imo
Sorry I know the principle etc just wonderd if any one had had it done and what if any gains they got??
no gains as they are large enough
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