Uprated Fuel Pump and Regulator - Saab Performance Bulletin Board - Saabnet.com
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Uprated Fuel Pump and Regulator
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Posted by Mark in Ireland [Email] (more from Mark in Ireland) on Sat, 12 Mar 2005 13:20:25 Share Post by Email
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Car..1992 9000 2.3 CD Carlsson, Gas flowed head, 3" JT exhaust, 50% water/methanol injection, GT28RS bb turbo, 3" intake and throttle intake pipe, mbc running beween 1.6-2 bar pressure...326hp/401ft.lbs-325hp/446.6ft.lbs, however I have fueling problems above 5000rpm so....

I sourced a uprated fuel pump (Walpro 255 lph)and one of the Maptun authorised dealers said it would be a straight swap, well it isn't on a 1992 Carlsson!
The pump is shorter in length and also smaller in diameter....however I cut a spare old pump open and slotted the new pump into the empty casing to make it fit the housing. I just need to solder the wires together now and sort out the high pressure pipework. Does anyone know how to soften the plastic pipe correctly??
Next is I need to fit, or I'm advised, to fit a adjustable fuel regulator. IIRC the standard regulator is set to 3 bar, I have just removed a spare fuel rail and am going to modify it to allow an after market adjustable regulator. Do I need to go for a rising rate one 1:1.7 or will a 1:1 be sufficent....and will I need to do anything with the regulator type thing on the return line?
I'm thinging of buying this one, ebay item #7960175271, will it be suitable or am I better off getting a FSE type?



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