Flow of standard UK MY99 heads?
14 August 2010, 09:46 AM
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I have flow data for the 99/00 Head casting and 01>STi (Small Port), but it cost me money to get 
The standard 99/00 Casting is pretty good, but UK/WRX cams aren't great. - I've always found that they struggle circa. 420hp. STi cams and valvetrain (in the same head casting) should see you up to around 500hp with a suitable turbo etc, no problem.
The standard 99/00 Casting is pretty good, but UK/WRX cams aren't great. - I've always found that they struggle circa. 420hp. STi cams and valvetrain (in the same head casting) should see you up to around 500hp with a suitable turbo etc, no problem.
Last edited by FB Tuning; 14 August 2010 at 11:48 AM. Reason: spelling
14 August 2010, 05:11 PM
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Thanks for the info. That's some pretty good flow potential going on there then for a 200bhp engine! Makes me wonder why Subaru made the ports flow so much.
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