fuel pump hot wire kit?

[87gnstock]

What is a fuel pump hot wire kit? Could someone please explain this to me. I am looking at getting the walbro 340 pump do i need a hot wire kit with it?

 

[Ken Cunningham]

The reason to hot wire is to insure that you get an honest 12-14 vdc at the fuel pump. The stock wiring is pretty far back from the source of voltage, so after all the fuses, weatherpack connectors, relays, and wiring, there is a voltage drop down to 11 vdc or worse. Especially during a WOT blast you want your fuel pump to be pushing the max fuel, and it can't do that with anemic voltage. The 'hot wire' kit brings voltage straight off the alternator thru a fat wire directly back to a new relay you install near the tank. It uses the existing fuel pump feed wire as a relay trigger. You don't need the hot wire in order to run your new fuel pump, but if you like to run fast, and want to run safe, it is a good idea. You can either buy the pre-made kit, or if you're a little bit handy, you can fabricate your own using the instructions found on gnttype.org.

 

[Buick T]

Once you have the pump and wires, get a pressure guage and adjustable regulator to increase the pressure. Most of the street chips want you around 42~45 psi. Mine is sweet now with just a thrasher 92, no more detination.

 

[bwallace]

Walbro340 comes with hotwire kit all plug and play.

http://www.racetronix.com/Racetronix-Buick_Single_Fuel_Pump_Kit.html

 

[FreeJack]

Has anyone installed the "Plug N Play" from racetronix?

 

[6pack]

I have the RaceTronix plug and play

top notch quality and easy to install. I ran mine through the trunk, under carpet and out through the fire wall. Took me about 10 or 15 minutes to run the hotwire kit from tank to alternator.

 

[FreeJack]

Thanks Gary...

I'll add that next to my list.

 

[6pack]

Your Welcome Dale

 

[Danster]

Hey Gary, was running through the trunk under the carpet per Racetronix's instructions? Reason I'm asking I just received my order and plan to do the change next weekend and I would prefer to do what you described. Can you give some pointers before I begin? Could I contact you if I run into a problem? I fairly confident I can do the install, however, you never know, thanks!


Dannyo

 

[6pack]

They run it down the frame rail in the instructions. The way I did it just seemd easier. I ran mine the same as the harness it plugs into, down the bumper to the driver side rear of the car, up through the hole where the other harness runs, there was a small hole just to the right of where the trunk hinges bolt and I poked a small hole in the sound deadner that is behind the rear seat, pushed the wire through as far as possible, got in car, took bottom of rear seat out, put hand behind seat pulled wire out and rin it down the driver side under the carpet to the fuse box under the dash then out the small hole in the fire wall. It would be easier if you have a friend to help but can be done by yourself. Yep you can contact me if need be. just email for my phone number if you need it.

 

[Racetronix]

Here is a link to the harness installation instructions
http://www.racetronix.com/Manuals/RX-G7-FPWH/RX-G7-FPWK.html

Delete the pulsator from the pump installation:
http://www.racetronix.com/images/Fuel_Pumps/pump_assembly.jpg

Jack
Racetronix