Ported intake manifold
03-14-11, 03:03 PM
#4
generally not worth the effort. port matching is relatively easy to accomplish and probably the best bang for the amount of time to do.
the manifolds would need to be extrude honed, which is expensive and not worth the money for potential gains, nor is the throttle body modification, porting and polishing.
if someone tells you it is worth it, think about it a little bit more. a professional shop is going to charge you about $500+ to do all the modifications. now think about how much in gains you might see, i would expect about a 2-3% increase in top end power, which simply isn't worth the cost. a bigger turbo, better intercooler design, cold air intake setup, full exhaust system, standalone, etc. isn't much more cost wise when you think about it.
this is one of those last ditch modifications that should be at the very bottom of your list when you have exhausted all other possibilities to get to your goal horsepower level and have constraints such as racing classes require(which actually usually do not allow this type of modification anyways).
the manifolds would need to be extrude honed, which is expensive and not worth the money for potential gains, nor is the throttle body modification, porting and polishing.
if someone tells you it is worth it, think about it a little bit more. a professional shop is going to charge you about $500+ to do all the modifications. now think about how much in gains you might see, i would expect about a 2-3% increase in top end power, which simply isn't worth the cost. a bigger turbo, better intercooler design, cold air intake setup, full exhaust system, standalone, etc. isn't much more cost wise when you think about it.
this is one of those last ditch modifications that should be at the very bottom of your list when you have exhausted all other possibilities to get to your goal horsepower level and have constraints such as racing classes require(which actually usually do not allow this type of modification anyways).
Last edited by RotaryEvolution; 03-14-11 at 03:07 PM.
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