2002 wrx heads
hi guys after some proffessional advice on whats the max hp i can run using newage wrx heads im looking to run the car around 420-450bhp if these can not flow enough would adding uprated cams get me where i need to be and any recommendations, i know that getting sti6 heads would be an option but i would still have to get them sent of for checking skimming and re seating valves so i was just thinking i could use or modify the heads i already have oh yeah they will be bolted to a jdm sti v7 bottom end.
thanks james |
I can't give you pro advice but only relate the experience with my 03 wrx heads.
They will need some work on the gas chambers to help flow and give uniformity to each side, on my standard heads one side was better than the other. If you haven't already the TGV delete helps. Paul Finch did mine, which went on a forged 2.5 short engine and had extra work to match the bigger cylinder, he also fitted STI valve springs for added reliability. With a MD321T the car makes 440hp on Vpower, 466hp +20meth and 500hp VPower +nitrous. The wrx heads shouldn't be a restriction on your STI block Trev |
Without better cams you have a bit of a problem anyway, they will drop torque at sort of 5.5k+ due to been unable to flow enough air....
Unsur eon the spring and shim arrangment on the newage ones though, but this could also limit your revs! |
Mine ran fine at 450 on standard Wrx heads without any mods to them
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Originally Posted by domino46
(Post 11727812)
Mine ran fine at 450 on standard Wrx heads without any mods to them
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Just to add - I ran standard v3 heads at 535+ hp....
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all new-age turbo heads have solid bucket shims as std...........
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Originally Posted by JGlanzaV
(Post 11727814)
All depends on what you class as "fine" id rather have a higher rev limit and not drop my torque, remember, if a job is worth doing its worth doing properly, drop some cams and solid shims in there :norty:
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sorry to drag up an old post but im doing a similar engine build
what thickness head gaskets would you recommend on this? cheers |
really depends on piston spec, etc. but most copmmon on new-age spec would be 0.78mm and we carry all options on the shelf
0191-4103770 |
Originally Posted by AS Performance
(Post 11754385)
really depends on piston spec, etc. but most copmmon on new-age spec would be 0.78mm and we carry all options on the shelf
0191-4103770 How much for a pair? I was gonna go for 0.6mm But if you recommend 0.8 then that will do |
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