I am debating whether I should smooth out some of the passages in the heads while they are off. I'm not looking to remove a lot of material because I don't want to eat into a coolant passage. I was going to use a dremel and remove some of the casting and rough areas.
Is it worth my time since I'm not really "port" the heads? Bad idea?
Porting heads?
Moderators: Helpinators, Moderators
Porting heads?
92 Turbo Legacy 4EAT
02 WRX - lightly modded (Gone but not forgotten)
02 WRX - lightly modded (Gone but not forgotten)
there is a lot of meat in there to port at, get the factory gasket and port that much away you will be fine, and have a fast car when your done.
1993 Subaru Legacy 44B STi 4Cam 16Valve Turbo Intercooled AWD
EJ22T, STi EJ207 DOHC, Vi-PEC (Spare Autronic) @ 426.20HP / 394.94ft lb @ 00psi
Tuned By: Franz Diebold ( DIEBOLD AUTOSPORT ) @ NVauto
EJ22T, STi EJ207 DOHC, Vi-PEC (Spare Autronic) @ 426.20HP / 394.94ft lb @ 00psi
Tuned By: Franz Diebold ( DIEBOLD AUTOSPORT ) @ NVauto
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rsstiboy
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from porting a head gives about the same HP gain as a set of headers, which isn't much at all, but if its going to cost nothing then I say go for it. about a 10WHP gain can be expected.
MY02 B4 Liberty, 2 1/2" off the primary with splitter, 3" off the secondary, 3" the rest of the way, completely stainless, k&n filter, ECUtek 3, 500HP walbro, 173kw@all4