ported FAST 90 and no tune?

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Jun 28, 2008 | 11:05 PM

Johnnystock

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ported FAST 90 and no tune?

Anybody have some dyno with A/F ratio after a ported FAST 90-92mm?

I recently got a nice tune for my car(LS6 intake) and now I'm planning to order a ported FAST 92 and PTM 92mm TB. I dont wanna get a retune cause my tuner is 500miles far.

anybody wants to share experience with untuned FAST over LS6 ?

I was told it will fatten the A/F by 1 point...

Last edited by Johnnystock; Jun 29, 2008 at 12:57 PM.

Jun 29, 2008 | 12:39 PM

Johnnystock

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anyone..

Jun 29, 2008 | 12:42 PM

CBIII

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are you saying you went frm a 90 to a 92?

Jun 29, 2008 | 12:55 PM

Johnnystock

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no its from LS6 to 92mm. not done yet.

Jun 29, 2008 | 01:42 PM

socmguy

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Of course it will affect the tune, just not by as much as you think. You should be fine upgrading but retuning wouldn't be a bad idea.

Jul 2, 2008 | 12:17 AM

2QUIK4U

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When I put my 90/90 on I didn't tune it at first and it ran fine, but when I did get it tuned it picked up another 20hp. So I dont think it's worth installing it without a proper tune.

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