Running a walboro off a relay versus the ecu
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Senior Member
Joined: Nov 2001
Posts: 198
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From: Seattle, WA
Vehicle: 2003 Turbo Tib
Running a walboro off a relay versus the ecu
Check this out:
http://www.autoperformanceengineerin...l/fpspecs.html
Notice the differences in flow between the 12v and 13.5v. Its great that we are all cranking up our fuel pressures but in doing so the Walbro is getting pissed and lowering the actual flow GPH. A bunch of peeps are starting to max their ish out from what I've heard in the tuner community. Now on the other hand Walbro's love more voltage so I'm thinking about running it off of a seperate relay to increase voltage.
You only get 12v from the ECU to the pump. After a relay mod, you can get around 13.5v from what I hear.
Has anyone else done this? Thoughts on it? dunno.gif
http://www.autoperformanceengineerin...l/fpspecs.html
Notice the differences in flow between the 12v and 13.5v. Its great that we are all cranking up our fuel pressures but in doing so the Walbro is getting pissed and lowering the actual flow GPH. A bunch of peeps are starting to max their ish out from what I've heard in the tuner community. Now on the other hand Walbro's love more voltage so I'm thinking about running it off of a seperate relay to increase voltage.
You only get 12v from the ECU to the pump. After a relay mod, you can get around 13.5v from what I hear.
Has anyone else done this? Thoughts on it? dunno.gif
