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Old 02-04-2018, 07:38 AM
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Tom Vaught Tom Vaught is offline
Boost Engineer
 
Join Date: Dec 2001
Location: The United States of America
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One other comment I need to add,

Say you have a 85 degree F day and are measuring the air temp going into the engine.

If the engine does not have a Ram Air/TA Scoop installation or a ZIP Tube to the area in front of the Radiator you will see higher temps under the hood (with that air entering the engine).

So say that air could be 30 degrees hotter so 105 degree air going into the carb.

Now you boost the engine with a Centrifugal Supercharger or a Turbocharger. And the system is a Blow thru system.

At 25 psi of boost you could be at 350 degrees of air temp going into your poor Holley carb and heating it up under boost conditions.

Using a proper inter-cooler and ice you might be at 130 degrees F going into the carb at the same 25 psi of boost. 220 degrees lower air temp.

You can boil water at 212 degrees water temp.

Food for thought. Boost Engineers do stuff for a reason.

Tom V.

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"Engineers do stuff for reasons" Tom Vaught

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