FI Headers for SCed Cars

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Feb 11, 2010 | 01:16 PM

#41

LeonGalt

Registered User

Joined: Jan 2005

Posts: 363

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From: Atlanta

I'm curious, what makes a header more friendly to SC applications specifically as opposed to NA? Which parameters is the Asura design changing over the other big named manifolds (Toda, Mugen, J's, etc). Are any of the other brands specifically bad for SC cars because of their sizings?

Thanks,
J

Feb 11, 2010 | 06:12 PM

#42

bouford

Community Organizer

Joined: Jan 2008

Posts: 16,945

Likes: 46

From: Pearl City HI

Quote:

Originally Posted by s2000Junky,Jan 24 2010, 05:19 PM

Because it maximizes/more efficient with how the power delivery builds for an SC. A 4-1 design is most efficient in the mid/upper rpms, same as the centrifugal SC. 4-2-1 design incorporates lower rpm scavenging for a well rounded rpm efficiency range/lower rpm trq, sacrificing some of the upper rpm power potential. This is consistent with any set up, N/A, turbo or SC. This 4-1 design header just makes sense for where in the power band the SC makes its power.

here u go.