header situation

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Sep 23, 2007 | 03:32 AM

HemiSport

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header situation

i ordered jba headers but now i dont know what to do. i heard that the pipes are to skinny restricting flow. need info asap thanks.

Sep 23, 2007 | 08:04 AM

BlackZ51Vett

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From: Vail, Arizona

What size are the pipes ? If they're at least 1 3/4" - 1 7/8's I'd say they are prob fine.

Last edited by BlackZ51Vett; Sep 23, 2007 at 08:11 AM.

Sep 23, 2007 | 11:58 AM

HemiSport

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the pipes are 1 5/8 long tubes

Sep 23, 2007 | 12:12 PM

EuroRod

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I hope you mean 1 5/8" in diameter. Most header fabricators are using 1 3/4" tubes for the LS2.

Sep 23, 2007 | 12:15 PM

HemiSport

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yes the diameter is 1 5/8" what do you think i should do people or what headers do you recomend

Sep 23, 2007 | 03:02 PM

HemiSport

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more on the headers. please what do i do good bad . will other headers perform significantly better. asap please for i might have a chance to cancel order

Sep 23, 2007 | 03:11 PM

Vito.A

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From: Tucson AZ

LG Motorsport just did a test with 1 3/4 vs 1 7/8 primay tubes and the smaller tubes were superior. 1 5/8 will certainly outperform your stock exhaust, but may not be the very best.
Most experts think that a stepped header 1 5/8-1 3/4-1 7/8 with a merge collector is the optimum header for a 6-7L motor operating in the 4-7000 rpm range, but this is running without cats or mufflers.