Is a 90mm Throttle body worth it??

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Oct 24, 2009 | 08:29 PM

Boosted One

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From: Cecil County, MD

Is a 90mm Throttle body worth it??

I'm going to be using the new Edelbrock Pro Flo XT intake for my upcoming turbo project and I'm trying to decide if I should just bolt my ported stock throttle body on there or go ahead and buy a 90mm for it. Since we are shoving the air in there anyway, is it worth the cost of admission for the 90mm???

What's your opinions?

Thanks,
Frank

Oct 24, 2009 | 11:27 PM

TheFallen

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if you have the funds by all means pick one up. But if youre only running 3" pipe to TB then there is no sense in using a 90mm. if you use 4" to TB then yes use 90mm. i run 4" to the TB and use a 90mm tb

Oct 25, 2009 | 12:10 AM

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Port the stocker and save the cash. Plenty have put up great numbers with the ported stocker.

Oct 25, 2009 | 10:49 AM

veee8

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I have made over 1000hp and been in the 8's on a 78mm FAST TB.

Oct 30, 2009 | 10:01 AM

Orr89rocz

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From: Pittsburgh PA

I got 3" pipe feeding stock LS1 throttle body on a victor EFI setup on a twin turbo small block 401 and its been 10.3's at 134-135 so far, 3500 lb with me in it. Weak launch and rough street tune, only 10psi boost

Ported stock TB should be plenty

Last edited by Orr89rocz; Oct 30, 2009 at 12:47 PM.

Oct 30, 2009 | 10:42 AM

z28boysteve

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From: Houston

So my 105 is a bit unwarrented ? lmao with originally a 2 1/2 feeding it!, Will be 4" shortly when I make it home from Iraq again and fab a new cold side.

Oct 30, 2009 | 12:41 PM

BlwnLs1GTO

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This is good info.
I'm running two 66's thru a 3" expanded to 4" pipe just before the stock LS1 TB. I've been worried that it would be a big restriction. The goal is 800whp with the 403ci.