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datsun75

WHATS A GOOD FUEL HOSE SIZE FOR 44 KUNIS

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RUNNING A 3.0 L28 MOTOR ON THE TRACK

WAS WONDERING IF I NEED TO RUN BIGGIER LINES FROM TANK TO CARBS, OR CAN I JUST RUN FROM UP FRONT FUEL FILTER OUT BIGGER HOSE TO CARBS.....I THINK I HAVE TO HOLD 4PSI CONSTANT PRESSURE....WAT SIZE DO YOU COMMONLY RUN.....5/16-3/8-1/2 SIZES?

 

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I used my 240z's factory 5/16 feed, 3/16 return all day long at countless autox and track events, at 5 psi to dual webers on a 10.2 comp 2.8L E88/F54 combo using a mechanical fuel pump. The only issues I ever had were vapor lock on the hottest days of summer, autox only. Swapping to an electric pump and re-routing the lines around the headers sorted it.

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