I got a Holley red electric fuel pump and was wondering if any one has knowledge of how and where to put it on a 73 maverick. If you had pictures that would be great. thanks
Electric pumps push better than they pull so you want it as close to the tank as possible. The bracket that the tank straps mount to is an excellent place to mount the pump. I hope you know those pumps are LOUD!!!!
This is just beside where the fuel line comes out of the tank. Mounted to the frame rail, as low as I think I can get away with. Mount with some rubber under it...it is loud, and any rubber you can add should help to quiet it down a bit.
Just remember to instal a relay of at least 30 amp capacity, a voltage supply line/in line fuse, and an oil pressure cut off switch, if possible. Safety is of most importance when adding electric devices to our cars, specially a fuel pump.
I have it running to a fog-light relay. It does not come on until I turn the key to START. Then it runs full time until I turn the key to OFF. Also ran an electric fan through the same relay (until about half hour ago, when I installed a thermostatic fan relay so the fan stays off until 185 degrees, then turns on until cooled down to 170). I got the relay for the pump at Autozone for less than $10. Look in the headlight section of the store. See little black box in bottom left corner of picture below with all the yellow wires coming out of it...There is the 30 amp fuse, and the red wire runs to the back to the fuel pump. The other yellow wires go to the fan, and one that hooks to the switched power supply. Clear instructions on the packaging.
I preffer separate relays for each electrical device, specially those which draw excessive amps, like fuel pumps, fans, driving lamps, etc. I made this for one of my other cars; used hella or bosch relays, Radio Shack plastic box, & a multiple fuse holder. That way if one relay fails, I still have the rest of the systems operative. Once I suffered a fuel pump relay failure on the road, & all I did was relocate the power from a less necessary accessory & routed it to the fuel pump circuit, & on the road again in less than five minutes. http://home.coqui.net/borench/images/eng_04.jpg http://home.coqui.net/borench/images/eng_05.jpg
good point slow7t. I have my fan and pump on separate relays as of yesterday afternoon. If the fan relay goes out, I can jump it over to the old one as a backup... By the way, not sure if you did those yourself, but very nice professional looking work Sure took a long time for the pictures to download, but worth the wait.
Yes, I made it myself. No too difficult tho. It's even glued with double face tape so no drilling to the fire wall was required, and has been like that for at least 3 years now.
i wish i had electrical know how.. i suck at it.. thats why my car looks like doo doo with the wiring
A Holly red pump only draws a couple of amps so a relay is not really necessary. I've never used one. Even the cheapest of toggle switches are usually rated at 15 amps.
Well, to each their own. If someone suffers an accident, and you happen to have a toggle switch conected to your fuel pump, the darn thig is going to keep running 'til the battery runs out of juice, and you'll be lucky a fire isn't being fed by a broken gas line. Not if you have an oil pressure cut off switch/sender, which opens the relay circuit, as soon as the oil pressure drops. A toggle can trully withstand its rated amps, but not if there's a short circuit down the wiring, where the fuse enters in action, and protects the whole car. Remember, we're here only to help & protect other fellow car lovers. My comments are JMHO.
Power to a fuel pump should definitely run through a fuse and low oil pressure cut off switch. I never said it shouldn't. But the relay is unnecessary. The purpose of a relay is to control big current with little current. 2 amps does not justify a relay. My set up is just as safe as yours and has one less thing to go wrong. I do not give advise that would be detrimental to ones safety.
