Fuel Pump Relay. - Team Camaro Tech
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post #1 of 7 (permalink) Old Jun 29th, 06, 05:23 AM Thread Starter
 
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Fuel Pump Relay.

HI All, had a quick question. Does anyone make a "Weather proof" fuel pump harness/relay? (Where the relay can be mounted under the car).

I have an electric pump by the tank and my battery is in the truck. I wanted to mount the wiring somewhere in the rear under the car. Is that possible?


Anyone out there running their relays/wiring in the rear? If so mounting or positioning ideas would be appreciated. (trying to keep the trunk as clean as possible)


Thanks
Chris
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post #2 of 7 (permalink) Old Jun 29th, 06, 06:08 AM
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Re: Fuel Pump Relay.

Use a 30 amp ISO relay and since it should be controlled by the ignition, mount the relay inside under the dash and run 12 AWG wire down along with the body harness to the fuel pump.

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post #3 of 7 (permalink) Old Jun 29th, 06, 06:55 AM Thread Starter
 
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Re: Fuel Pump Relay.

Thanks for the reply!!

I was hoping to avoid pulling the interior out to run wires if I can. I all ready have a switched 12v hot run back (The existing hot for the pump). I could use that as the trigger wire for the reply. If I could mount the relay outside in the back I would just have t drill a small hole in the trunk to run power from the battery the connect the pump/grounds and be done.

any other options? Is outside on the frame a real bad idea?

Thanks
Chris
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post #4 of 7 (permalink) Old Jun 29th, 06, 06:58 AM
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Re: Fuel Pump Relay.

Quote:
Originally Posted by freebird
I have an electric pump by the tank and my battery is in the truck. I wanted to mount the wiring somewhere in the rear under the car. Is that possible?
It might require some long wires depending on the distance between the car and the truck...

http://www.wiringproducts.com/dept_36.html

There are some sealed relays here...
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post #5 of 7 (permalink) Old Jun 29th, 06, 07:00 AM Thread Starter
 
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Re: Fuel Pump Relay.

PS,,,I was also think that my fuel pump is only 2-3 feet from my battery (Under the trunk). By putting the relay in the back all of the "runs" would be much shorter. The only long wire I would have would be the trigger wire running From the front of the car.

Thanks
CHris
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post #6 of 7 (permalink) Old Jun 29th, 06, 07:45 AM
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Re: Fuel Pump Relay.

Just put the relay in the trunk, run the feed through the floor to the pump?





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post #7 of 7 (permalink) Old Jun 29th, 06, 01:48 PM
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Re: Fuel Pump Relay.

I noticed nobody mentioned an oil pressure cut-off switch. These shut off the pump if there's no oil pressure. You can wire these so the pump runs while cranking the engine to prime the system. Their main purpose is to turn off the pump if you crash. I know of a local guy who died in his burning car because the pump didn't shut off when he wrecked. Go fast, but be safe. If you're interested I can tell you how and I can even make a wiring diagram.

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