Intercooler for a Carb'ed Engine
Thread Starter
Le Mans Master
Joined: Oct 2000
Posts: 8,897
Likes: 1,357
From: Santa Ana CA
Intercooler for a Carb'ed Engine
Had an interesting idea but don't know how lucrative it would be. (Maybe applicable for drag racing as it may not violate any rules).
How about blocking off the heat riser on the intake manifold and running cold water though this space under the carb? There may not be enough surface area to be worth it, but in some applications, every little bit can help.
And it certainly couldn't hurt with fuel percolation and vapor lock problems.
How about blocking off the heat riser on the intake manifold and running cold water though this space under the carb? There may not be enough surface area to be worth it, but in some applications, every little bit can help.
And it certainly couldn't hurt with fuel percolation and vapor lock problems.
Le Mans Master
Joined: Aug 2009
Posts: 5,474
Likes: 16
From: Houston Texas
St. Jude Donor '10-'12-'13
and a phenolic spacer.The biggest HP and drivability impprovement would be to add a cool (outside)air induction system.
I thought it would cool for holley to make refrigerated fuel bowls for a/c cars. Even better a freon cooled gas filter. Just tap into the a/c freon system.
Last edited by MiguelsC2; Jul 24, 2011 at 03:27 PM.
Melting Slicks
Joined: Feb 2006
Posts: 3,105
Likes: 96
From: Sunrise FL
The heat riser cooling has been tried already...not sure where I heard about it...think used radiator water..
Google anyone?
There is a fine line to get enough heat for good fuel atomization and too much for boiling
Google anyone?
There is a fine line to get enough heat for good fuel atomization and too much for boiling
Thread Starter
Le Mans Master
Joined: Oct 2000
Posts: 8,897
Likes: 1,357
From: Santa Ana CA
I recognize there are spacers (I use one now) and cold cans, but there is no saying that you can't have it all.
Some time ago one guy on the C3 forum (IIRC) shot an infra-red heat gun at the intake/carb and the spot under the carb was the hottest point on the engine (though I'm sure that the crossover was open).
With all the restrictions in "stock" classes, this seems like something that may have slipped through the loop holes in drag racing.
Tech Contributor
Joined: May 2005
Posts: 15,576
Likes: 118
From: Conroe Texas
If blocked off the ports and filled the heat crossover under the carb with water, I think it would quickly heat up and become as bad as hot antifreeze circulating under the carb.
If stealth is not a concern, I know some on the C6 forum are plumbing their A/C lines into a system to help their supercharger intercoolers and thus something like that with tubes going to the intake would probably help, but not sure how much given - as you say - the limited surface area.
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Thread Starter
Le Mans Master
Joined: Oct 2000
Posts: 8,897
Likes: 1,357
From: Santa Ana CA
Plus, water removes heat 7 times faster than air does.
Drifting
Joined: Feb 2006
Posts: 1,840
Likes: 29
From: Towaco NJ
