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Old 09-21-2009, 09:50 AM   #28 (permalink)
Backtobasics
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Join Date: Aug 2008
Location: Kc KS
Posts: 148

Dart Lite - '76 Dodge Dart Dart Lite
90 day: 18.34 mpg (US)

Beater..with a Heater - '94 Isuzu Rodeo LS
90 day: 16.19 mpg (US)
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Quote:
Originally Posted by Superturnier View Post
I think changing the carburettor model from 1 barrel to 2 barrels would give some improvement in mpg.
Primary venturi could be small size as it it used mainly for cruising
Secondary venturi could be much bigger giving you power for the occasional accelerations.
My accelerator pump is not working, and it's not needed, because I have quite small primary venturi on my carburetor.
Smaller venturi atomizes fuel better on lower rpm.
I like the idea, but I am not aware of a commonly available carburetor in 2 barrel configuration that is spread bore, or said another way, small primary and large secondary. 4 barrel carbs can be had this way, and I have one waiting for later stages, that is configured this way. Do you know of a staggered 2 bbl carb?
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1994 Isuzu Rodeo - Beater with a Heater...
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