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07-19-2007, 03:38 AM #1
- Join Date
- Oct 2005
- Location
- Vicksburg. Ms.
- Posts
- 461
pewter- 99 Trans Am
What is the true rear wheel Hp gain with long tube headers.
Can someone tell me what is the true rear wheel Hp gain with long tubes with just say a Hooker muffler and stock tail pipes? And will I lose power on the bottom end?
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07-19-2007, 05:38 AM #2
- Join Date
- Dec 2002
- Location
- n/w chicago
- Age
- 54
- Posts
- 6,932
black- 2000 nhra edition formula
i gain about 30 rwhp
2000 nhra edition formula
a few bolt ons, 379 rwhp
11.96 @113.25
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07-19-2007, 07:22 AM #3
That is unbelievable...can't wait till I get my headers on.
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07-19-2007, 07:51 AM #4
i gained 26rwhp and 22rwtq respectively with my LT's/ORY...
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07-19-2007, 12:10 PM #5
- Join Date
- Oct 2005
- Location
- Vicksburg. Ms.
- Posts
- 461
pewter- 99 Trans Am
What about bottom end Power lost?
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07-19-2007, 12:29 PM #6
You can get numbers like those with a tune, but it should be around or over 20 rwhp w/o a tune.
You won't lose bottom end power but high end will spike after 3000 rpms. It will feel like you lost low end compared to the higher rpms, but hp and tq will be higher all throughout the powerband.
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