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Old 09-08-2021, 06:51 PM
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SBSerpent SBSerpent is offline
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Join Date: Jun 2020
Location: SoCal, CA
Cobra Make, Engine: BDR build #983, FRM 392
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Quote:
Originally Posted by Unique427 View Post
A few guys here have used Quick Fuel's 300-4013QFT
"Quick Cool Carburetor Insulator Kit" with reported success.
In addition to creating a manifold/carb thermal barrier, it
provides a heat shield under the fuel bowls too.
Installation height is 0.50".

https://www.summitracing.com/parts/q...SABEgKlQPD_BwE
I looked at some reviews on this product and there were two instances where the poly core spacer had started to deteriorate after a short period of use. In both instances, the owners removed the carburetor and saw that the material inside of the spacer was coming apart and shedding particles into the intake manifold.

I'm going with my original plan of 1/2" phenolic spacer (with sealing gaskets on both sides of the spacer). The reduction of conductive heat transfer from an aluminum intake manifold into an aluminum bodied carburetor should be quite substantial given that right now, all I have that separates the two is a paper thin gasket.

I gotta start somewhere and being an aerospace thermal engineer by occupation, I've gotta believe that cutting down the conductive heat transfer from manifold to carb by using a low conductivity phenolic will provide some gains. Stay tuned.

Last edited by SBSerpent; 09-08-2021 at 07:01 PM..
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