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Old 05-27-2003, 08:00 PM   #1
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Default 89 Throttle body size

I'm working on building my intake and was wondering if anyone knows what size tubing I need to fit over the throttle body?
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Old 05-27-2003, 11:56 PM   #2
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3" works fine.
Go to an exhaust shop and have them bend you a pipe and call it done. If you need to you can get it powder coated for a few bucks. Have fun.

Ty
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Old 05-28-2003, 12:59 AM   #3
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Stupid kinks though. Cant find an exhaust shop that does mandral
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Old 05-28-2003, 01:33 AM   #4
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3" is way to big for an 89. Series 2 is 3"....I think the 89 is a bit smaller.
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Old 05-28-2003, 01:45 AM   #5
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Yes you can go smaller but a 3" will work and like I said an exhaust shop can help you. As unappealing as a kink on the pipe will look if the shop is good they can have the kink on the outside and the inside will be nice and smooth.

Ty
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Old 05-28-2003, 03:57 PM   #6
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go with 3" and somehow clamp it to the tb. I think timsmooth used 3"-3" adapter from home depot.
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Old 05-28-2003, 06:55 PM   #7
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So will a 3" pipe fit pretty snuggly over the TB or is a different size better?
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Old 05-29-2003, 01:08 AM   #8
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This is what it looked like.

You can go with a smaller pipe but it is not necssary.

Ty
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