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Anyone have flow bench #'s for a ported 1.8T exhaust manifold like the SPP or others?

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Old 06-24-2005, 09:43 AM
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Default Anyone have flow bench #'s for a ported 1.8T exhaust manifold like the SPP or others?
Mine is being done now & I am looking for something to compare the results to.

Mine is on a B5 A4 which I think is the same manifold as the 180 TT.

Thanks.
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Old 06-24-2005, 10:10 AM
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Default Yes, we have extrude hone exhaust manifold numbers vs. stock transverse 1.8T.
Don't know if I have them here, but if not, e-mail me a reminder and i'll do it from home later.
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Old 06-24-2005, 10:15 AM
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Email sent. Thanks.
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Old 06-24-2005, 10:23 AM
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If you could post them that would be great. thanks.
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Old 06-24-2005, 10:34 AM
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Default Didn't find it in the e-mails I kept related to the GB I did>>>
but I will try to find it at home, or from the guy at EH we worked with.
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Old 06-24-2005, 11:22 AM
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Default basiclly.. EH +12% Port and polish by Wilson Manifolds +16%
over stock. Do a search under Wilson Manifolds for more detail.
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Old 06-24-2005, 12:04 PM
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I think that's for the intake.
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Old 06-24-2005, 12:10 PM
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opps, my bad.
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Old 06-24-2005, 02:45 PM
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Default what I can say is the stock 1.8 exh mani is very rough....
with dingle berries, mold breaks etc.

problem is runners are very small....thats good for low end and lag...but at high end it is a dog...

eh will help imrove flow by ...my guess ....10-15%
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Old 06-24-2005, 05:07 PM
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and it was 15 % Bob... but you have the 'pretty one' ;-P
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