cold air intake - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 07-26-2004, 01:24 AM
M4203
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cold air intake

Hello, anyone install cold air intake on a 1991 suburban? 350 tbi
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post #2 of (permalink) Old 07-26-2004, 03:19 AM
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Re: cold air intake

It has one from the factory. It sucks air from in front of the radiator via the ductwork going into the main pillar of the core support on the passenger side.
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post #3 of (permalink) Old 07-26-2004, 06:53 AM
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Re: cold air intake

I was thinking of a straight line intake with some better flow.
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post #4 of (permalink) Old 07-26-2004, 03:37 PM
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Re: cold air intake

The bottleneck is the air cleaner and filter. You can find a 5" tall air cleaner from a mid 80s smog truck and put it on there. It'll flow around 800CFM.

The stock system works very well. You can stick some retarded intake kit on there and it'll probably suck underhood heat. There are two good places for that truck to get air from. Its stock location or the passenger fender if you plug all the holes in the inner fender.
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