how much HP can a stock fuel pump support?

[bimmers4life]

how much HP can a stock fuel pump support? i have a 91 318is and would assume that the fuel pumps are the same for all non M e30's. Thanks!

-Richard

[gstuning]

all E30 pumps are the same and you will be fine unless you reach more then 350-400hp

[1990m3]

'91 318is has a proprietary fuel pump. Although it may flow the same it is different from all other e30 fuel pumps.

[bmw332i]

I'm still running a stock e30 325i fuel pump, and I'm making over 330 crank hp from my fully built s52. I would assume that that would be enough unless you plan on turbo-ing your car.

[bimmers4life]

'91 318is has a proprietary fuel pump. Although it may flow the same it is different from all other e30 fuel pumps.

What exactly does that mean? i dont know a whole lot about fuel pumps.

Sounds good though. That is one less thing i will have to worry about!

[1990m3]

it has something to do with the fuel hose connections at the top of the fuel pump. I have a new one sitting here right now that I have to install as mine is dodgy.