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Turbo Shed

1303 Posts
Member #: 30
Post Whore

Epsom, Surrey

30th Mar, 2007 at 09:25:07am

being as the pressure regulator allows fuel to the float chamber, and the float chamber has a float in it. then as long as the fuel pressure is enough to fill the carb and not too much to force past the float then all is well. the fuel used by the carb is at atmospheric pressure or increased by boost pressure into the float chamber. so fuel pressure at the jet should have nothing to do with fuel regulator pressure?

the reason i did away with the fuel return into the back of the pump was i thought that air/vapourised fuel will just circulate round and round untill in goes through the carb and that could cause running problems

stevieturbo

3596 Posts
Member #: 655
Post Whore

Northern Ireland

30th Mar, 2007 at 06:21:01pm




On 30th of Mar, 2007 at 09:25am Turbo Shed said:
being as the pressure regulator allows fuel to the float chamber,


FPR controls fuel pressure. Fuel could get to the float bowl even if you didnt have one.

and the float chamber has a float in it. then as long as the fuel pressure is enough to fill the carb and not too much to force past the float then all is well. the fuel used by the carb is at atmospheric pressure or increased by boost pressure into the float chamber. so fuel pressure at the jet should have nothing to do with fuel regulator pressure?


Id agree....but strangely it can seem to have a small effect.

the reason i did away with the fuel return into the back of the pump was i thought that air/vapourised fuel will just circulate round and round untill in goes through the carb and that could cause running problems


These pumps cannot pump air.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

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