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How much does a carb spacer do?

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Old Jun 16, 2012 | 01:31 AM
  #1  
blue birdy 87's Avatar
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How much does a carb spacer do?

Hey im considering doing a carb spacer on my mostly stock lg4 87. How much performance gain will i get from this?
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Old Jun 16, 2012 | 02:53 AM
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Re: How much does a carb spacer do?

Originally Posted by blue birdy 87
Hey im considering doing a carb spacer on my mostly stock lg4 87. How much performance gain will i get from this?
maybe 80 horse? 120 if u put a k&n on...
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Old Jun 16, 2012 | 03:14 AM
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From: Shelby Mt
Car: '85 iroc-'13 powerstroke H&S tuned
Engine: 406 sbc full roller
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Axle/Gears: stock
Re: How much does a carb spacer do?

bahaha probably pretty minimal, it can keep the carb cooler if you go with a non metal one and lets the fuel atomize with the air better from what ive been told
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Old Jun 16, 2012 | 03:19 AM
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Car: White 84 z28
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Re: How much does a carb spacer do?

Really that much? I was expecting much less (mabye 40 hp and 30tq). I guess the intake will be much bigger and the heads free'r but exauhst and cam will still be stock. Figured that would hold back any real hp numbers
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Old Jun 16, 2012 | 09:37 AM
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
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Re: How much does a carb spacer do?

He's pulling your leg. You won't see a noticeable difference.
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Old Jun 16, 2012 | 09:51 AM
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Re: How much does a carb spacer do?

Actually, probably do more harm than good... unless of course you get one of those stckers for your windshield that says "Firebird" to help everybody that REALLY CARES what kind of car it is but doesn't know what a Firebird looks like... I heard last Friday night in the McDonalds parking lot, that one of my friends' classmate's cousin's co-worker's wife's uncle's brother's sister-in-law's husband's friend, added like 75 HP and 100 ft-lbs when he put on both the spacer AND the sticker.
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Old Jun 16, 2012 | 11:00 AM
  #7  
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From: Belleville ON Canada
Car: 1984 Z28
Engine: 355
Transmission: 700r4
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Re: How much does a carb spacer do?

A carb spacer will give you a higher RPM, not really power or tourqe... But these cars are designed for lower RPM power not high RPM
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Old Jun 16, 2012 | 01:41 PM
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
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Re: How much does a carb spacer do?

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Old Jun 26, 2012 | 02:38 PM
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Car: 82 Sport coupe
Engine: 355 semi roller
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Re: How much does a carb spacer do?

its going to make ur carb sit higher..... i only use mine to adjust how far i want the carb sticking out of the hood. stack like 6 of em together and make a ghetto tunnel ram lol
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Old Jun 26, 2012 | 02:53 PM
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1986Z28OWNER's Avatar
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Re: How much does a carb spacer do?

Alot of BS here.... Carb spacer can do harm, but they can also work wonders. If your engine needs the air the extra plenum volume supplied by the carb spacer can work wonders. On my 383 with a performer RPM I picked up 9HP and 11 ft lb's of tq all from a simple open 1" spacer(dyno proven) On a stock 305, you will probaly see minimal gains.
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Old Jun 27, 2012 | 03:49 PM
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On a stock LG4, this kind of spacer can add up to 150 horses:
http://www.summitracing.com/parts/EDL-70061/
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Old Jun 27, 2012 | 06:19 PM
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Car: White 84 z28
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Re: How much does a carb spacer do?

Originally Posted by five7kid
On a stock LG4, this kind of spacer can add up to 150 horses:
http://www.summitracing.com/parts/EDL-70061/


Hey now were talking. Sadly that carb spacer costs abit more, and doesnt include a bottle. But I do bet they come with a sticker!
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Old Jun 27, 2012 | 06:39 PM
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Re: How much does a carb spacer do?

OMG
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Old Jul 1, 2012 | 12:41 PM
  #14  
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Re: How much does a carb spacer do?

Dont do anything til you get the right sized exhaust/ headers on there.
May even need to jet up some
Spacer is a tuning aid imo
To make any change now you wouldnt know what you did really
Sometimes you can lose power with them.

Air in, air out. Its a system.
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