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Old 06-19-2012, 08:08 AM   #17
juanmedina
Scooby Guru
 
Member#: 133146
Join Date: Nov 2006
Location: SC
Vehicle:
07 FPgreen [email protected]
WRX VF39+E85 12.0, 121mph

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Quote:
Originally Posted by KevinK View Post
Like it was said before. The stock wiring harness won't support the larger fuel pump. Hard wire the pump with constant voltage from the battery using the recommend wire gauge. And the drum looking things are dampeners which, as far as i know, only cause rough idling and cruising. If you removed them put them back on.

My Bosch 044 was leaning out at 450whp because of a small gauge wire from the battery which ultimately caused me to have inconsistent fuel pressure and lean/rich issues. Also use an oem fuel sock because it sits lower in the tank just to reassure you're not getting fuel starvation.

Just food for thought. Hope this helped in any way.
I have a walbro 460lph and is not rewired. I have no issues at all..
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