LS1TECH - Camaro and Firebird Forum Discussion
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LS1TECH - Camaro and Firebird Forum Discussion (https://ls1tech.com/forums/)
-   Generation III External Engine (https://ls1tech.com/forums/generation-iii-external-engine-6/)
-   -   I think you may need a tune after a ported TB (https://ls1tech.com/forums/generation-iii-external-engine/966453-i-think-you-may-need-tune-after-ported-tb.html)

MikeG 08-08-2008 10:40 PM
I added a lid/ported TB/FTRA at once and picked up ZERO at the track. Then I got a tune and picked up 27 hp. So yeah, a tune would help you no doubt.

Andrew@MarylandSpeed 08-09-2008 10:00 AM
Originally Posted by 5_02ls1 (Post 9890595)
he is full bolt ons....
No, he's not. He doesn't have the headers on his car yet. Regardless if he had full bolt-ons or not, there's nothing to tune for if the only change he made was a ported throttlebody. You might pick up 2-3 horsepower out of it by just installing it, but again, you cannot tune for simply a ported throttle body. It's like trying to tune for bigger/better plug wires.

SladeX 08-09-2008 10:04 AM
No way a ported TB allowed a 27HP gain on it's own. If any tune is done to a stock car, potentially it's because GM richens the tune a bit to be on the safe side and that you can lean it out to gain more HP, but a ported TB is not worth 27 HP. I'd be hard pressed to say it gains even 2-3 HP considering that is barely 1% of a stock powered LS1 at the wheels and much smaller than the standard deviation you can get between dyno runs.

orangeapeel 08-09-2008 10:47 AM
Originally Posted by Intercooler2 (Post 9878772)
Well I thought I would have saw some kind of gain instead of a loss. Like $200 for nothing LOL
You get 3 ported tb's for that price? Yikes that seems high.

Intercooler2 08-09-2008 12:56 PM
$200 was TB, Underdrive, belts and bolt

MikeG 08-09-2008 03:48 PM
Originally Posted by SladeX (Post 9892638)
No way a ported TB allowed a 27HP gain on it's own. If any tune is done to a stock car, potentially it's because GM richens the tune a bit to be on the safe side and that you can lean it out to gain more HP, but a ported TB is not worth 27 HP. I'd be hard pressed to say it gains even 2-3 HP considering that is barely 1% of a stock powered LS1 at the wheels and much smaller than the standard deviation you can get between dyno runs.
Were you referring to my post? You need to re-read it if so...


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