TTawd3S

I know DSMs get a desent amount of power for porting. I was just wondering if its worth my time to port the stock exhuast manifold, exhuast housing, wastegate hole, and O2 housing. I have the tools, its just a matter of "is it worth my time", plus this isn't my car/motor.

Enthalpy

you can clean up the manifold a little bit to improve flow. but beyond that you cant really do much. most people just replace the restrictive parts...but i prefer to port out the manifodl a bit rather than replace it. the replacement ones flow nice but they all have cracking problems.

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Scott - Gone Independent!
enthalpy@tamparacing.com
AIM - Enthalpy1200
539whp Stock Block SR20DET

Joel

Spend the money on other areas like maybe a better quality turbo. Factory intake manifold flows quite well.

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SilviaWA
1992 180SX: cwest, vertex, wise, pivot, gemax, embleton, kyb, blitz, whiteline