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75mm MAF to 92/92 FAST

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Old 12-06-2009, 05:05 PM
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Question 75mm MAF to 92/92 FAST
Tomorrow I am installing my FAST 92/92. The problem I have is connecting a stock size 75mm MAF to a giant 92mm Throttle body!!! what can I use to fit that mis matched 75mm maf to 92mm Throttle body?

I know what you thinking...buy a 92MM LID and larger MAF and solve my problem. Well hollidays are here and money is tight so I am currently going with the stock size LID and MAF.

what the heck can I buy to connect the stock size MAF to a FAST 92/92?

P.S. Will a Smooth bellow connect to a stock size maf and to a Fast 92 Throttle body or do I need a larger MAF for the smooth bellow and not as large Throttle body? AHHHH please help!
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Old 12-06-2009, 06:22 PM
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come on people, were better than this... I would appreciate ANY help
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Old 12-06-2009, 06:34 PM
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Check this place out, they have silcone reducers.

http://www.siliconeintakes.com/index...69f93445561ded
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Old 12-06-2009, 06:54 PM
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so exactly what size am I looking for for the 75mm to 92mm conversion
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Old 12-06-2009, 07:07 PM
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3.5" to 3"
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Old 12-06-2009, 07:40 PM
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Originally Posted by PUNISHER TA
3.5" to 3"
are you sure about that? 92mm converts to 3.6" and thats I.D. not O.D.

OP go measure the O.D. of both then you'll know what size you need.
Last edited by JeaneZ28; 12-06-2009 at 09:33 PM.
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Old 12-06-2009, 08:26 PM
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I think you have to measure the actual OD of the hardware in question. For example, the OD of the 78mm throttle body used on an LS6 is the same as the OD of the 90mm throttle body used on an LS2. (I know this because I did a swamp and was able to use the same intake tube.)
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Old 12-06-2009, 09:31 PM
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Originally Posted by Darkman
I think you have to measure the actual OD of the hardware in question. For example, the OD of the 78mm throttle body used on an LS6 is the same as the OD of the 90mm throttle body used on an LS2. (I know this because I did a swamp and was able to use the same intake tube.)
Thanks MR. Obvious. j/k
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Old 12-06-2009, 10:44 PM
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The stock accordion style connector will fit over a 90mm TB with a little stretching. I'll bet it would stretch over the 92 as well to get you going anyway.
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Old 12-07-2009, 12:33 AM
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The stock bellow will work. I am running the stock accordian style bellow on mine.
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Old 12-07-2009, 06:37 AM
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running stock bellow on my Fast 90.

took an extra set of hands the first time...but it fit
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Old 12-08-2009, 12:21 PM
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Fernco 3.5'' to 4'' reducer. I would post a pic of mine but i cant get photobucket to work
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Old 12-08-2009, 01:26 PM
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if you really want:

probably the 4" to 3.5" is the best fit.
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Old 12-08-2009, 01:33 PM
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Originally Posted by teke184
if you really want:

probably the 4" to 3.5" is the best fit.
those are expensive and would look funny on a car.
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Old 12-08-2009, 05:48 PM
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they're basically what the "smooth bellow" is from SLP.

and i think SLP sells them for $50

but whatever
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Old 12-08-2009, 05:51 PM
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Originally Posted by teke184
they're basically what the "smooth bellow" is from SLP.

and i think SLP sells them for $50

but whatever
Well the SLP have an angle which is a plus but I bought one from the company below. Their cheap and work great, real flexible.

http://www.siliconeintakes.com/index...69f93445561ded
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Old 12-08-2009, 06:45 PM
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$7.99 + tax from home depot
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Old 12-08-2009, 10:53 PM
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^ Thats what I ran for months!
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Old 04-11-2017, 11:13 PM
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Originally Posted by Dewman

$7.99 + tax from home depot
does it run good like this?
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Old 04-12-2017, 03:19 PM
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I know your trying to save but i paid $30 for a GM maf on ebay. Lid is another expense of course but just an fyi.
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