Dual Walbro 255hp's
12-20-2011, 10:38 PM
#13
Launching!
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[QUOTE=foose04;4828426]There is a spring on the top of the pumps that has to be pressed in, this prevents the over pressure valve from opening. You can find it by doing some searching on google.[/QU did you do this to the 400s also?
12-20-2011, 11:03 PM
#14
I did not. I'm not sure how these new pump are setup, but looking at the flow charts 90psi seems to be the bypass in these. I'm also running mine with the BAP help out. I look to upgrade or modify my 80's for next season as well and that should bring my running pressure back down to 43 base and 63 at full boost. Give or take some, but around there as I use a 1-1 FPR.
Will say they suck some AMP's. My first pull the truck shutoff. Lol, popped the 30AMP fuse. Ended up installed a 50 AMP, all seems well now. I use the factory line to a relay and run a 8 gauge to the pumps, and 14 gauge grounds on each pump.
Will say they suck some AMP's. My first pull the truck shutoff. Lol, popped the 30AMP fuse. Ended up installed a 50 AMP, all seems well now. I use the factory line to a relay and run a 8 gauge to the pumps, and 14 gauge grounds on each pump.
Last edited by foose04; 12-20-2011 at 11:09 PM.
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