Fuel Pump Question

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Powerkraut
Posts: 4
Joined: July 28th, 2017, 4:16 pm
Stroker Displacement: 4.6l
Vehicle Year: 1990
Vehicle Make: jeep
Vehicle Model: wrangler

Fuel Pump Question

Post by Powerkraut »

My fuel pump took a crap on me and now that I'm replacing it the new pump looks smaller than the older one. I built this motor about 5 years back and recall uaing the stock '94 fuel pump, but may have used something else. Is there any reason a stock 94 yj pump wouldn't work running 24# ford injectors and a stock fuel pressure regulator?
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Cheromaniac
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Posts: 3180
Joined: March 8th, 2008, 12:58 pm
Stroker Displacement: 4563cc
Vehicle Year: 1992
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Re: Fuel Pump Question

Post by Cheromaniac »

A stock '91-'95 4.0L fuel pump has an output of 90 liters/hour and will support up to 300hp. Plenty enough for a stroker.
1992 XJ 4.6 I6 - 5MT - Stroker build-up, Stroker "recipes" Sold
1995 Mustang GT - 4AT - Modded Sold
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Powerkraut
Posts: 4
Joined: July 28th, 2017, 4:16 pm
Stroker Displacement: 4.6l
Vehicle Year: 1990
Vehicle Make: jeep
Vehicle Model: wrangler

Re: Fuel Pump Question

Post by Powerkraut »

Thanks, I may be pushing close to 300hp though with the build I have. Any suggestions for a solution that wouldn't involve dropping the tank if I end up leaning out at WOT? I've heard that a supplemental inline pump can help by dropping the fuel line psi so the tank pump can keep up at higher load.
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