Factory Flow Rate for S13 Cylinder Head?
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2_Liter_Turbo
- Posts: 2674
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'96 S14 Coupe: SR20VET
'90 R32 TH1 GTR: RB26DETT
'92 S13 Fastback: SR20DET
'11 V36 Sedan: VQ25HR
'06 GMT800 2500HD: LBZ Duramax - Location: DFW, Texas
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Factory Flow Rate for S13 Cylinder Head?
Anyone know the intake and exhaust port flow rate for a factory S13 cylinder head?
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Hijacker
- Posts: 14373
- Joined: Wed Aug 13, 2003 4:57 am
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'94 F-150 - Location: Fredericksburg, VA
Re: Factory Flow Rate for S13 Cylinder Head?
I'm afraid not 
But I was following your post on NRR, sounds like they had a good answer for you.
But I was following your post on NRR, sounds like they had a good answer for you.-
2_Liter_Turbo
- Posts: 2674
- Joined: Sat Jan 24, 2004 10:41 am
- Car: _________________
'96 S14 Coupe: SR20VET
'90 R32 TH1 GTR: RB26DETT
'92 S13 Fastback: SR20DET
'11 V36 Sedan: VQ25HR
'06 GMT800 2500HD: LBZ Duramax - Location: DFW, Texas
- Contact:
Re: Factory Flow Rate for S13 Cylinder Head?
Yeah I get a lot of conflicting numbers for the factory head. I could understand variations even within 10-20 cfm depending on the test setup and environmental conditions, but some are 60-70 CFM different. I wish I was able to get the head tested before they did the work on mine. I posted up an interesting ported DET vs VE head flow comparison in my build thread though (if you haven't seen it yet).