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Header size for Forced Induction (ATI)

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Old Nov 4, 2003 | 10:55 PM
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Default Header size for Forced Induction (ATI)

Tried the search, but I guess its down...

For a 346 supercharged setup, should you just go with the biggest, best flowing setup available or should it be sized for the HP/CI?

Thanks,

Mike
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Old Nov 5, 2003 | 01:31 AM
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I would go with a descent set of LT's, I got FLP's on my 6.0L 372 motor, others go bigger if they plan on running a lot of boost, or they have a bigger motor.....
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Old Nov 5, 2003 | 01:20 PM
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I am also looking at the FLPs for the C5, but just wanted to check before putting down the 1500 for them. I'm planning on doing headers of some sort over winter, along with a 3.85" pulley and racetronics. Right now I'm seeing 6psi at 6200. So, after the pulley/headers I'm estimating 5-6 psi when its all done, on the stock bottom-end.

Last edited by Mike00FRC; Nov 5, 2003 at 02:36 PM.
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Old Nov 5, 2003 | 01:33 PM
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When I did research on header size, I talked to Mustang folks who run competitively in an NMRA class called Renegade.

Folks said as big as possible.

But some folks also mentioned not seeing major gains past a certain point.

IMO I would do 1.75>1.875 step headers and 3" dual exhaust.

I have Kooks 1.875>2.000 step headers with 3.5 collectors.
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