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Old 23 January 2009, 01:53 PM
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neil.p1
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Default standard heads what bhp
just wondering what a set of standard heads would make if they where not ported and polished with cams in
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Old 23 January 2009, 02:28 PM
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banny sti
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If you are running a P1, which has the same heads as sti 5/6 then you should be able to make 500bhp with them before any mods.

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Old 23 January 2009, 02:37 PM
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i am gettng near 500 with complety standard cams was just wondering if you had a big set of cams what bhp would you expect
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Old 23 January 2009, 02:41 PM
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Assuming you are running adjustable pulleys and pretty wild cams, anywhere from about 20-40bhp at the same boost level.
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Old 23 January 2009, 02:46 PM
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i am running a garret gt35 turbo at i .6 bar of boost was told the heads are capable of flowing till 600bhp with the right mods without the need of porting and polishing
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Old 23 January 2009, 02:52 PM
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Depends what turbo you are running.

But stock STI 5 /P1 heads and cams are good for circa 550bhp
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Old 23 January 2009, 03:04 PM
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i am running a garret gt 35
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Old 23 January 2009, 03:05 PM
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Plenty more to come from that then if you're only running it at 1.6bar.

This on a 2.0L, 2.35 or a 2.5?
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