HOW TO: Buschur Racing Double pumper
Good evening
I recently installed the double pumper in my evo and I figured I would share the install with you .
I picked the buschur racing double pumper system because I feel that it is the best solution for those requiring more fuel for the following reasons.
1) utilizes stock lines No AN lines required
2) supports over 700 HP worth of fuel
3) simplicity of install
4) high quality parts. ( the machined wye fittings , machined housing)
5) price
Nicely packaged. Dave ensures that each assembly is primed and in working order prior to shipping, this is the reason for the zip lock bags, so that fuel does not spill out during shipping ( you can tell that buschur racing has put some thought into this product.)
the pump housing
the fuel filter and lines
let us begin the install,
the fuel pump housing is located under the rear driver side seat, once the seat has been removed, take out the 4 screws for the access panel
this is what the stock housing looks like
From left to right
the first line is the loop line from the passenger side of the tank, then electrical connection, the rubber line is the return line, and then lastly the fuel supply that goes to the rail
next remove the 8mm nuts , so that the stock housing and ring can be removed
here is a shot of the gas tank without the stock pump housing
the stock pump housing
here are some shots of what the buschur housing looks like the two brass barbs are now your supply points from each 255
The twins
Now install your float mechanism ( it merely snaps in), also install the rubber gasket to the new housing,
IMPORTANT: make sure you install the siphon h tube , this piece the longer leg of the h goes on the return line side, if you don't install this piece, you will get low fuel pressure.
lower the housing into the tank, gently bend the socks and make sure you don't bend your float assembly...
the line that I have in my hand is the stock supply line, this can be removed
next place the ring onto the housing, this takes a little effort , don't get frustrated, have a beer if you don't get it around the fittings the first time, it seemed to help me.. attach the black wire to ground, this is the grounding wire for the secondary pump. I used the Ring.
Now we have to fish the Y lines to the under side of the car
In the picture below you can kind of see it, make sure you tap the end of the line, so as not to get dirt in there
and a better shot of the rubber line
now attach your fuel filter
In the picture above you can see the stock rubber line, this is the stock fuel return line.
Remove this piece the one in the picture below, this was the stock fuel supply line, the fuel filter will now sit in this location.
attach the other end of the filter to hard line, make sure that you have one high compression clamp on each side of the ridge in the hard line
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