[TX] Ported and Siamesed 89-92 Plenum
Ported and Siamesed 89-92 Plenum
Just like the title says I have a ported and Siamesed 89-92 intake plenum. It's in pretty good shape just needs a new owner. $100 shipped.
Last edited by LT1Formula; Sep 21, 2014 at 11:52 PM.
Joined: Mar 2002
Posts: 854
Likes: 11
From: Rincon, Ga.
Car: 91 Camaro RS
Engine: 305 TPI conversion.
Transmission: T56
Axle/Gears: 3.73 posi 4th gen rear
Re: Ported and Siamesed 89-92 Plenum
this will work on my 91 s/d with stock tb and runners?
Joined: Jan 2009
Posts: 887
Likes: 17
From: Golden, CO
Car: 87 IROC
Engine: L31 350
Transmission: T56
Axle/Gears: 4.10 D44
Re: Ported and Siamesed 89-92 Plenum
Need to siamese the runners? Not really.
Get more advantage from the ported plenum? Absolutely.
Get more advantage from the ported plenum? Absolutely.
Re: Ported and Siamesed 89-92 Plenum
If you don't Siamese the runners with this particular plenum trust me it will be no good. If the runner is not matched at least pretty closely to the plenum ports the air from the plenum will basically run into a wall trying to find the runner. Air does not like to be disturbed and it would be counterproductive to try to use this plenum without working the runners too.
Last edited by LT1Formula; Aug 26, 2014 at 12:10 AM.
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