Air Gap question
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From: TEXAS
Car: 1987 IROC-Z
Engine: 6.2L
Transmission: Stage III T56
Axle/Gears: 3.73
Air Gap question
Edlebrock air gap, just got in the mail.
anyone ever get theres polished? they seem kinda rough inside
would it be worth it?
anyone ever get theres polished? they seem kinda rough inside
would it be worth it?
Joined: Feb 2001
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Air gap intakes aren't the best choice when matching with TBI. TBI intakes need to be hot to fully attomize the fuel fix before it gets sucked into the heads and turned into hydrocarbon waste. I believe past tests with TBI and air gaps have shown fuel puddling at the base of the intake.
Last edited by ShiftyCapone; Jun 30, 2005 at 09:25 PM.
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From: Detroit, MI
Car: 91' Pontiac Firebird
Engine: 388 ci Small block CHEVY (4.060x3.75), Dart Iron Eagle Platinum 200cc, Performer intake, 454 TBI, Long Tubes, True Dual 3" GPs
Transmission: 700R4, B&M, Governer Recal, 20,000 GVW cooler
I think he is trying to say, do not polish it!
The roughness will help atomization.
Air flow is like a bell curve, most of the flow is in the middle, so the slighty rough runners don't need to be polished.
Although they polish exhaust ports to reduce carbon buildup.
The roughness will help atomization.
Air flow is like a bell curve, most of the flow is in the middle, so the slighty rough runners don't need to be polished.
Although they polish exhaust ports to reduce carbon buildup.
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From: Chicago, IL
Car: 91 Camaro RS Convertible
Engine: 305 TBI
Transmission: 5-Speed
Axle/Gears: 3.42
Yeah, what he said, you never really want anything polished on the intake side. Sometimes people even rough up some spots in the intake ports on heads if they're too smooth. So, no, don't polish.
I also agree with Shifty, I would go for the normal Edelbrock manifold like the RPM or Performer non-air gaps. A hot plenum is better for TBI's, some have seen icing on throttle blades when the manifold is run too cool.
I also agree with Shifty, I would go for the normal Edelbrock manifold like the RPM or Performer non-air gaps. A hot plenum is better for TBI's, some have seen icing on throttle blades when the manifold is run too cool.
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
The RPM with a TBI-Carb intake adapter will actually allow the TBI on a very humid 60* day to ice up if it idles long enough. Ask me how I know. Couldn't even open the throttle to drive away after idling for about 15 minutes one day. Had to kill the engine and let the ice melt. Then I stuck the Thermac air cleaner back on.
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