Stock Fuel pump psi

[416stroker]

Well Do you know what the stock pump puts out PSI wise. I know the sytem holds 3.5 bar/50 psi but what does the pump put out.

The one im looking at these are its specs •255 LPH Feeds up to 750 HP at 60 psi

[jlevie]

I think that would be too big a pump for the fuel pressure regulator and result in excessive rail pressure. I don't remember the specs for a stock pump but I'm pretty sure it was a lot less.

[Toms73NovaSS]

I have a 255 lph pump, stock regulator, no problem.

[Gooch]

I have a 255 lph pump, stock regulator, no problem.

I also just did this retrofit. No problems.

[416stroker]

What pumps are you guys running? Walbro? Im thinking about a holley or a walbro?

[jlevie]

The OE pump works great and fits perfectly...

[Toms73NovaSS]

What pumps are you guys running? Walbro? Im thinking about a holley or a walbro?

Walbro

[416stroker]

The OE pump works great and fits perfectly...

Not when Im converting to a single pump my cars a 87- built 12/86

Im just doing this to simplify things.


I know its more than enough for my m50 as well but me converting to a single pump is cheaper and less to worry about.

[Jean]

This should help:

http://www.m42club.com/forums/showthread.php?t=9856

[Gooch]

That's the same pump I used, TRE.

[416stroker]

Are they good pumps?

[Danny]

I used a TRE on my turbo car, good stuff. Kinda loud though.

[416stroker]

So all I have to do is get a late 318I fuel pump housing? Dose anyone know if it will fit in my housing?

I used a TRE on my turbo car, good stuff. Kinda loud though.

No big deal my trick flow pump sounds like a damn GM

[Gooch]

Not sure about the housing, I don't know all the little differences between the builds of cars, but my TRE has been great so far. They also come with a one year warranty.

I don't think it's that loud, it is definitely quieter than my stock pump that was on its way out.

[Jean]

The 318i(s) housings have a fuel return line on them. Yours might not have it since its a 6cyl car.

318i(s) pump/housing on the top and fuel pump from a 325i(s) on the bottom for reference.