Would I need the rewire kit I get this? http://cgi.ebay.com/ebaymotors/Walbro-255-Fuel-Pump-Install-Kit-1G-DSM-Talon-Eclipse_W0QQcmdZViewItemQQcategoryZ33555QQitemZ8077317252QQrdZ1QQsspagenameZWDVW Also how much do you think my gas mileage is going to go down after this install?

It will cause more damage than do any good, I wouldn't get it. There's a huge thread about the B&M FPR on here and how it is not good. About 1:1 ratio: 1G Turbo 5spd - Bass Fuel Pressure 37 psi 2G Turbo - Bass Fuel Pressue 43 psi 1G Non-turbo - Bass Fuel pressure 47 psi If you have a 2G turbo and you are at 0 psi of boost, your base fuel pressure is 43psi. When you boost at 10 psi, the fuel pressure is 53psi. When you boost at 20 psi, the fuel pressure is 63 psi. This is the 1:1 ratio, for every 1 psi increase in boost, the stock FPR or a good AFPR will increase fuel pressure by 1psi. With a B&M unit, you might be at 43 psi fuel pressure for 0psi of boost but at 20psi of boost, you might only get 50 psi of fuel pressure (I'm making this number up)since it doesn't do the 1:1 ratio increase. Thanks for the help. well thats definitly a consideration what your saying. Thats the only fpr I have to use for right now anyways though i have no choice until I can get the money to get another. I may have to see if I can hook up a fuel pressure gauge to test it? Will the stock fpr, or fuel rail accept fittings to plug in a fuel pressure gauge? Does a stock 1g gst fpr have the 1:1 ratio like your talking about? And by it not keepin the ratio are you suggesting it may lean out from lack of pressure at certain boost levels? Ive talked with one of the wisemen about that regulator and all he mentioned was he ran a n/t regulator back in the day for a while and never had any problems and that it just raises base pressure 10 psi like said, but he never mentioned anything about a 1:1 ratio. I wonder why theyd put 10 more psi on a n/t?

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Walbro 255 Discussion

Thread starterpitbullowner_2
Start dateJun 21, 2006

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Jun 21, 2006

pitbullowner_2

15+ Year Contributor

Would I need the rewire kit I get this?

http://cgi.ebay.com/ebaymotors/Walb...33555QQitemZ8077317252QQrdZ1QQsspagenameZWDVW

Also how much do you think my gas mileage is going to go down after this install?

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Jun 24, 2006

DGajre777

DSM Wiseman

From what I know all turbo DSMs have FPRs that raise fuel pressure on a 1:1 ratio to boost. Sorry, can't help you with the N/Ts.

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Jun 24, 2006

nightspeed87

15+ Year Contributor

maybe any wisemen can chime in on that question??

Upvote0

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