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Re: Carb float questions. If set incorrectly, and float level be somewhat corrected by adj.

October 5 2017 at 9:08 PM
Drew Pojedinec  (Login DeepRoots78)
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Response to Carb float questions. If set incorrectly, and float level be somewhat corrected by adj.

Pressure is different, sure, but also remember needles are different as well.

Lets take two common needle/seat combos

.110 and .097
Lets say we have a constant of 7psi fuel pressure.
To keep the same exact level in the bowl with the same fuel pressure
a .110 needle and seat requires .77 lbs of force to seal
a .097 needle and seat requires .679 lbs of force to seal

Another difference is float leverage. A side hung float provides different leverage compared to a center hung, and obviously a lot of variation with different makes and models.

To answer your question, yes a regulator can be used to set a float level provided it's "in the neighborhood"
I think on Holleys the spec is 1psi= 1/16 of an inch of fuel level in the bowls with side hung. (roughly, it's info from an old manual)


    
This message has been edited by DeepRoots78 on Oct 5, 2017 9:57 PM


 
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