what kinda intake is that with the filter comming right out of the tb

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Jan 21, 2001 | 03:41 PM

85F-body

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Joined: Dec 2000

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From: houston,tx.usa

what kinda intake is that with the filter comming right out of the tb

i have seen this pic of this tpi engin and the tb had a filter in it and that is it i mean they just skipped the maf or map what ever year it was and all the tubes and the rest of that stuff i just wanted to know what they would do with the maf sensor and would'nt there be a trouble message

Jan 21, 2001 | 03:55 PM

FormulaKid

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From: Philadelphia, PA USA

Car: 1989 Firebird Formula

Engine: 350

Transmission: 700R4

That was a speed density set up you were looking at. It elimates the MAF. A lot of people like it for it's tuning capabilities.

Jan 21, 2001 | 04:12 PM

GMTech

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From: Vereinigten Staaten

Car: Take

Engine: Your

Transmission: Pick

Yeah, the cars you see that on is he "speed density" cars, meaning they don't have a MAF sensor. These type of filters are not good though. They suck hot air directly from the radiator and kill performance. I once had a TB mounted filter like that and I did extensive testing with it. I found that with the TB mounted filter, my track times were very inconsistant. Since I didn't have a manual fan switch, I had to rely on the computer to turn the fan on. Well, when the temps went up, my track times went up also. When the fans kicked on, and the temps went down, so did my times.

After installing a Cold Air Intake to replace that TB mounted filter, I gained .2 in the 1/8 mile, and also gained consistancy. I could hit my dial-in every single time, not just when the fans came on.

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Jan 21, 2001 | 05:15 PM

93ND500

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From: Beyond Hope

You will see this setup on lots of TPI swaps. In my swap, into a 93 C1500, it was the only option that I could have used. When I switch over to electric fans I will be replacing it with a Firebirds filter/duct system.

In the image you can see that there was not enough room for anything else to fit.

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1993 C1500 Indy 500 Edition
1992 TA TPI
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[This message has been edited by 93ND500 (edited January 21, 2001).]