Re: Carburetor spacers for heat
[Re: RAY1969CARS]
#2390633
10/21/17 01:29 AM
10/21/17 01:29 AM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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Probably even 1/4" will help alot
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Carburetor spacers for heat
[Re: sixpackgut]
#2390643
10/21/17 01:53 AM
10/21/17 01:53 AM
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Joined: Nov 2007
Posts: 21,819 Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Posts: 21,819
Kirkland, Washington
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Probably even 1/4" will help alot I agree. Additional thickness is only going to gain decreasing gains. Other concerns such as air cleaner clearance and linkage come into play.. And the discussion of power with an intake riser is another thread.
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Re: Carburetor spacers for heat
[Re: RAY1969CARS]
#2390668
10/21/17 03:09 AM
10/21/17 03:09 AM
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Joined: Jan 2003
Posts: 19,361 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,361
Las Vegas
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We tested this stuff years ago. Found hardwood actually worked better than phenolic spacers did. We settled on 1/2" spacers. But this was years ago for sure. Also those heat shields have been around for years, in a pump gas street car with a tight engine compartment they wore worth something I would imagine. Will definitely help with boiling fuel in the bowls for sure.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Carburetor spacers for heat
[Re: RAY1969CARS]
#2390782
10/21/17 12:47 PM
10/21/17 12:47 PM
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Joined: Jan 2003
Posts: 8,021 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,021
Tulsa OK
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If you really wanted to isolate the carb from the manifold you would also need to use nylon or fiber washers under the carb nuts. Probably minimal gains but thats one less spot to transfer heat.
When I had a carb my vapor lock problems were rare even with a stock hood, but it seemed to be underhood temp as opposed to engine temp that got them. I have an old trans temp gauge hanging near the master cylinder. When it reads over 180* is when vapor lock problems seem to start. In a stock engine compartment full of hot air I am not sure you can make much of a difference. I never had room for a spacer so I was never able to try.
68 Barracuda Formula S 340
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Re: Carburetor spacers for heat
[Re: RAY1969CARS]
#2390792
10/21/17 01:18 PM
10/21/17 01:18 PM
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Joined: Jul 2004
Posts: 19,317 State of confusion
Thumperdart
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I Live Here
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Posts: 19,317
State of confusion
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I try and use a 1/2 minimum or more if possible according to the type of manifold, rpm range and of course space available.........I run a 1/2" 4 hole under my Dommy..............
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Carburetor spacers for heat
[Re: sasquatch]
#2390796
10/21/17 01:23 PM
10/21/17 01:23 PM
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Joined: Jul 2004
Posts: 19,317 State of confusion
Thumperdart
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I Live Here
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Posts: 19,317
State of confusion
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Check out a company called coolcarb technologies. www.coolcarb.comNot sure of any power gains but they should help with fuel temps inside the carb. Todd Not too impressed w/a 100+ degree carb and I posted a video on VB where my engine was around 160 the intake 120 ish and my carb was 71 degrees after sitting w/just a 1/2" wooden spacer............
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Carburetor spacers for heat
[Re: Thumperdart]
#2390799
10/21/17 01:26 PM
10/21/17 01:26 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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The best way to keep a carb running nice and cool is a bypass fuel regulator after the carb so cool fuel is always available. Even with this setup, the secondary fuel bowl can get really hot on those 100 mile drives between fill ups
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Carburetor spacers for heat
[Re: sixpackgut]
#2390825
10/21/17 02:07 PM
10/21/17 02:07 PM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
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Balt. Md
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The best way to keep a carb running nice and cool is a bypass fuel regulator after the carb so cool fuel is always available. Even with this setup, the secondary fuel bowl can get really hot on those 100 mile drives between fill ups Thats true. I have got away with my deadhead setup but I have a return type regulator I would like to install. Course I have a stock tank and will have to find a sending unit with a port or take mine out and make a port for a return line. I have also heard wood is the best isolator to use and I may switch to wood soon. Ron
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Re: Carburetor spacers for heat
[Re: sasquatch]
#2391452
10/22/17 09:40 PM
10/22/17 09:40 PM
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Joined: Nov 2004
Posts: 16,474 On the run…
BloFish
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I Live Here
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Posts: 16,474
On the run…
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Check out a company called coolcarb technologies. www.coolcarb.comNot sure of any power gains but they should help with fuel temps inside the carb. Todd I’m going to give that a try.
It really doesn't matter whether you win or lose… as long as you look good doing it!
‘65 A100 ‘69 ‘Cuda ‘73 Vega GT ‘06 Mega Cab ‘14 Mercedes SLK
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