Any disadvantages to 1 7/8 long tubes?

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Jul 10, 2014 | 03:35 PM

#21

dr_whigham

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From: Lafayette, LA

Quote:

Originally Posted by red04montels

You guys are talking the 1 3/4 to 1 7/8 swap gained you that much? Is the theory similar on 90mm vs 102mm TB and Intake Manifold then? Or is 102mm not necessary until large numbers?

Power in these manifolds isn't made by the TB size. It's made in the runners themselves. The 102 is simply a superior piece to the 90/92 Fasts due to the runner design.

But yes, those gains with the headers are normally on par.