02-17-2009, 07:15 PM
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CC Member
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Join Date: May 2006
Location: St. Louisville,
Oh
Cobra Make, Engine: A&C 67 427 cobra SB
Posts: 2,445
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Not Ranked
Quote:
Originally Posted by mr. oz
From Pro Systems website:
Carburetors and Electronic Fuel injection are two completely different systems. They share no concepts and each has a different theory.
EFI's claim is this: I will supply sprayed droplets of fuel at the proper air to fuel ratio all the time.
Carburetors claim: I will supply a pre-emulsed froth of fuel and air into the engine at a preset ratio.
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Interesting mr. oz.
A 20 degree drop on an 80 deg day would increase the air density about 4%. That would be aroung 16 hp on a 450 hp engine.
If the fuel does go through a phase change from liquid to a gas it would cool the air. The phase change would have to happen in the plenum to be a benefit. It sounded like not just any carb would do this well.
Since gasoline at atmouspheric pressure needs to be up near 500F to phase change to a gass, it does not want to do this. I really do not understand the physics behind emulsed froth. I don't understand why the fine spray of an injector is totally different from this. Maybe someone can enlighten me. I'm always willing to learn.
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