carb spacers? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

pimperout · 11-22-2006, 10:27 PM

im thinking about gettting a carb spacer and am wondering about the power it could add and what sounds they make, im looking at getting a 2 inch spacer my friend said it gives the gas more time to atomize so it burns better and the added air volume under the carb helps reduce back pressure or sumthing about when you let off the gas suddenly the thingers (my mind went blank for the proper name) that let the air in snap shut im not sure about what that would do but he said its best to have as little of that back pressure as possible or sumthing, and i have also heard they make kind of like a whisling or whiny sorta sound when you giver gas i dunno, mabe some 1 could clarify this for me thanks.

*rage'nrat638* · 11-22-2006, 10:30 PM

never heard any noise..they do work..
the best feature is the cooling effect it has for the carb.
better low end torque

Longhorn Man · 11-22-2006, 11:38 PM

some combos will respond to one style, and not show a bit of improvement with another style, other engines don't respond at all to any kind.
It's a crap shoot, but the generic rule ... they do work.

BobbyK · 11-22-2006, 11:42 PM

If you get one,get the Phenolic ones.They minimize the tranfer of heat from the intake to the carb.

like this one.

pimperout · 11-23-2006, 02:06 AM

alrite thanks guys u answered alot thanks

Musclerodz · 11-23-2006, 02:41 AM

I run a TB spacer on my '97 BB Chevy and it was worth 200 rpm on the top. I don't notice the whistle with the stock air cleaner, but I could here it when I had the K&N system on it. I don't notice any difference on the low end.

mike

355 · 11-23-2006, 05:08 AM

I run a 1" phenolic with the seperate 4 holes. It improved startups and I get about 10 more feet of tire patch. The four holes seem to work better on dual plane and give good low/mid torque. What your friend may have been trying to tell you was about the damping effect of the spacer. Your gas/air charge comes in haulin butt and slams into the bottom of your intake then it has to figure out which direction to go depending on which runner is screamin for the mix. The increace below the carb is like having larger volume runners and sort of smoothes the flow. It's a real cheap investment for a tested improvement. Didn't hear the whistle thru the K&N cause of the pipes. My 2 cents. Steve

Longhorn Man · 11-23-2006, 11:46 AM

again, K&N is a bad idea. It only stops bricks and birds.

corn · 11-23-2006, 11:56 AM

Most carb spacers are used for looks period. I dont believe a raised plenum will increase torque. They are designed to repair high RPM power curves. You have heard of the Edelbrock Performer intakes? The Performer RPM has a taller plenum & is for a higher RPM curve...

11-22-2006, 10:27 PM	#1
pimperout Registered User Join Date: Sep 2006 Location: Bow Island, AB, Canada Posts: 166	carb spacers? im thinking about gettting a carb spacer and am wondering about the power it could add and what sounds they make, im looking at getting a 2 inch spacer my friend said it gives the gas more time to atomize so it burns better and the added air volume under the carb helps reduce back pressure or sumthing about when you let off the gas suddenly the thingers (my mind went blank for the proper name) that let the air in snap shut im not sure about what that would do but he said its best to have as little of that back pressure as possible or sumthing, and i have also heard they make kind of like a whisling or whiny sorta sound when you giver gas i dunno, mabe some 1 could clarify this for me thanks.

11-22-2006, 10:30 PM	#2
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	Re: carb spacers? never heard any noise..they do work.. the best feature is the cooling effect it has for the carb. better low end torque

11-22-2006, 11:38 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: carb spacers? some combos will respond to one style, and not show a bit of improvement with another style, other engines don't respond at all to any kind. It's a crap shoot, but the generic rule ... they do work.

11-22-2006, 11:42 PM	#4
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,772	Re: carb spacers? If you get one,get the Phenolic ones.They minimize the tranfer of heat from the intake to the carb. like this one. __________________ 71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE

11-23-2006, 02:06 AM	#5
pimperout Registered User Join Date: Sep 2006 Location: Bow Island, AB, Canada Posts: 166	Re: carb spacers? alrite thanks guys u answered alot thanks

11-23-2006, 02:41 AM	#6
Musclerodz Senior Member Join Date: Aug 2005 Location: OKC, OK Posts: 2,364	Re: carb spacers? I run a TB spacer on my '97 BB Chevy and it was worth 200 rpm on the top. I don't notice the whistle with the stock air cleaner, but I could here it when I had the K&N system on it. I don't notice any difference on the low end. mike __________________ Mike Redpath

11-23-2006, 05:08 AM	#7
355 Registered User Join Date: May 2005 Location: South Mississippi Posts: 81	Re: carb spacers? I run a 1" phenolic with the seperate 4 holes. It improved startups and I get about 10 more feet of tire patch. The four holes seem to work better on dual plane and give good low/mid torque. What your friend may have been trying to tell you was about the damping effect of the spacer. Your gas/air charge comes in haulin butt and slams into the bottom of your intake then it has to figure out which direction to go depending on which runner is screamin for the mix. The increace below the carb is like having larger volume runners and sort of smoothes the flow. It's a real cheap investment for a tested improvement. Didn't hear the whistle thru the K&N cause of the pipes. My 2 cents. Steve __________________ 1969 C10 Long Step,355,700r4w/lockup, HEI,Weiand,750 Performer,1.6 rockers,Camel Humps,Comp 262Extreme,Hedman,2 1/2"pipes, tele/tilt,SunRoof,ps,Disc pb,ac,Cragar,eaton,Corvette style roll pan, Bowtie louvered tail gate,lowered 2/2.

11-23-2006, 11:46 AM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: carb spacers? again, K&N is a bad idea. It only stops bricks and birds.

11-23-2006, 11:56 AM	#9
corn Registered User Join Date: Dec 2003 Location: here Posts: 5,789	Re: carb spacers? Most carb spacers are used for looks period. I dont believe a raised plenum will increase torque. They are designed to repair high RPM power curves. You have heard of the Edelbrock Performer intakes? The Performer RPM has a taller plenum & is for a higher RPM curve...



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