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Published on Aug 10, 2012
Does the sound of your fuel pump oscillate when you turn on your blinker or change pitch when you simply press the brakes??? If so, you may benefit from re-wiring your fuel pump. This will take power directly from the battery and send it to your pump(s) using a relay and larger wire. This will feed the pumps a constant 13-14 volts. This will allow you to get the most out of your fuel pump(s).
Some people only see 10 volts at WOT through the stock wiring for the fuel pump. This effectively makes the fuel pump smaller due to the loss in voltage. So if you think your single 255 is out of fuel and you are still on stock wiring, this would be a very worthwhile upgrade.
The sizes for relays and fuses will vary depending on the draw of your pump or pumps and if you are activating one or two pumps. When I ran a single pump I used a 30amp relay and a 15 amp fuse in the feed wire. With dual pumps I run a 40amp relay because the 30amp's are known to get hot and stick open. I run a 25amp inline fuse for the dual pumps.
I hope this helps and happy boosting.
I have the right to use the music in this video. Music: Fallback - Abstract Sapiens FX - Serious Town Fallback - Thousand Years www.jamendo.com for more information about the credits and the permission to use this song.