DIY - Walbro 255 fuel pump retrofit.

[dougie30]

Dual pump, is a low pressure lift pump, then a high pressure external pump. You can remove the external pump, and connect the hoses, then replace your internal pump with a high pressure in-tank pump.

ok i understand that part, im just confused on what hoses go where and what electrical connectors go where?

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[Blaine0002]

heres a review after having this in for about a year now. Works great, but its loud :)

[Eric]

Please define loud...

Also, what kind of sound deadening/interior is still in the car?


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[Blaine0002]

higher pitched whine, almost like a whistling noise. also its a vert so the only things between the cabin and the fuel pump is the metal plate and my rear seat.

[Blaine0002]

I have had no problems with it though.

[PCasil]

Does this mod work well with E30 M3's? I'm thinking about doing this mod on mines since my went out..

[Blaine0002]

Walbro pump works great in all applications

[GunMetalGrey]

Has anyone else had to put a slightly larger fuse in the fuse box for this pump? A friend and I both put these in and started popping a fuse for the pump. It was fixed by dropping in a fuse that was one step larger than stock.
Anyone else have this?

[Mtechnik2]

Bringing thread back from the dead, walboro400 e85 pump barely fits

[estoguy]

ok i understand that part, im just confused on what hoses go where and what electrical connectors go where?

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I'm wondering this too, as I'm sure I'm going to have to do this job at some point.

Anyone know of a DIY?

[madman23]

SOOOO just from reading this I am confused. Is it worth spending the extra 60 bucks for a new one from pelican? Is this thing to short to not run the tank till empty or to long?

[agent]

Is it worth spending the extra 60 bucks for a new one from pelican? Is this thing to short to not run the tank till empty or to long?

I went back to the OEM pump. Following this DIY introduced starvation issues at AutoX events and mountain road carving anywhere below about half a tank.

The pumps themselves are great, though IMO they should be used by folks who can fab up a better way of mounting them in the tank than simply bending the rod from the OEM assembly.

[the imitator]

Bam, right on with the starvation.

This is yet another reason why I prefer early model e30's for track shenanigans. The fuel tank pump that feeds the external pump makes hooking up a Surge tank easy as cake since everything is there already. I grabbed a 1 liter inline unit from 034motorsports.

I went back to the OEM pump. Following this DIY introduced starvation issues at AutoX events and mountain road carving anywhere below about half a tank.

The pumps themselves are great, though IMO they should be used by folks who can fab up a better way of mounting them in the tank than simply bending the rod from the OEM assembly.

[Spitfi-r]

Bam, right on with the starvation.

This is yet another reason why I prefer early model e30's for track shenanigans. The fuel tank pump that feeds the external pump makes hooking up a Surge tank easy as cake since everything is there already. I grabbed a 1 liter inline unit from 034motorsports.

Yup, I swapped out my stock pump for the TRE version and now I'm suffering from fuel starvation at the track....Now I've gotta decide what is easiest and cheapest.

[eLKuRLy]

So aside starvation issues at the track, if vehicle is just a daily on the road, the Walbro and Tre pumps are a great option?? assuming no starvation issues as a result not pushing g's (turns) on the road as on the track.