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ANY ONE HAVE A 255 (or bigger) FUEL PUMP FS?


white86turboz

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While we're on the subject of Walbro pumps, I am going to replace my dead pump with a Walbro and I'm curious to know if the Walbro is going to increase fuel pressure above stock from the old pump. (ZXT pump) I don't have an adjustable pressure regulator yet (saving up for it). Do I need to adjust the AFM settings aka will the Walbro make me run any richer at idle and cruising if it does increase fuel pressure? Thanks.

 

John 82ZXT

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While we're on the subject of Walbro pumps' date=' I am going to replace my dead pump with a Walbro and I'm curious to know if the Walbro is going to increase fuel pressure above stock from the old pump. (ZXT pump) I don't have an adjustable pressure regulator yet (saving up for it). Do I need to adjust the AFM settings aka will the Walbro make me run any richer at idle and cruising if it does increase fuel pressure? Thanks.

 

John 82ZXT[/quote']

 

I'm doing just fine with the stock regulator and a Walboro 255 internal pump.

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It's only the pump, no screen or wire plug. I would spend the extra $20 and get the install kit to make it easier to install. I know 87-88 300ZX turbos have intank pumps, I would think they are all the same but not 100% sure.

 

You don't need an adjustable or aftermarket regulator.

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  • 2 weeks later...

most newer cars have the pump hanging off of the fuel sender with a sock on the bottem to strain the fuel.pump and tank are installed as an assembly -its faster at the factory .hoses have snap on connectors and 1 plug for the wiring.older cars like 75 up z with efi had an EXTERNAL pump mounted to the body of the car with a hose feeding the pump.pump had to be mounted low so it would pick up fuel.i am installing a walbro gsl392 external inline pump on my 77 z.the threads on the walbro pump require you to buy adaptor fittings.i am running a 12mm hose barb on the inlet and a adaptor for 6an hose on the outlet side.i am building a custom fuel rail with an fittings.fuel system pressure side will be 6an or equal to 3/8 line.i have heard 5/16 line is good for up to 400hp at 40 psi so the 6an should not ever be maxed out with a l28 motor.

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