stu’s68furyiiirat
Active Member
Well guys I got my windshield put in this week it’s a used one but I’m so happy with it. Then my mechanical fuel pump went out I like to put a electric on it just need opinions on where to mount it thanks in advance
I have a Carter it’s junk mechanical one it quick and carb gets dry after a week of sitting I have a electric one I got through work thought I would try it I love stock appearance but I think it has a lobe wore off camJust buy a good quality mechanical fuel pump like one from Carter. There is a lot more to do when installing an electric fuel pump than installing it. You need fuel injection rated rubber hoses, a fuel pressure gauge and regulator and a fuel pump block off plate, or alternatively you would have to gut your existing mechanical fuel pump.
I’ll check into itIsn’t your car equipped with a LA engine? If so, the pump doesn’t work off of a cam lobe but rather an eccentric that bolts to the front of the timing chain.
I’d stick to a mechanical rather than add complexity by adding an electrical pump. See what’s causing it to bleed off.
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As part of the above:Just a word of caution: Once you start bastardizing something, it’s yours. You engineered it. You built it. After that whatever problems you may encounter are of your own design and you will have to figure them out on your own.
The oil pressure switches are good. Even better is the install of a "crash" or "roll-over "switch. Crown Vics were a good source for a cheap one. They are in the trunk near the spare.As part of the above:
Any electric fuel pump should be wired so that the pump shuts off if the engine stops.
If you get in an accident, you don't want a fuel pump continuing to run -- in some scenarios that could be disastrous.
Exactly. Don’t wire up some mess that keeps pumping gas after it’s no longer wanted. Its not as simple as it seems.As part of the above:
Any electric fuel pump should be wired so that the pump shuts off if the engine stops.
If you get in an accident, you don't want a fuel pump continuing to run -- in some scenarios that could be disastrous.
As @Blusmbl said, a relay would be ideal:
Wire with an ignition-fed trigger to the coil (from the fusebox is OK), with a ground trigger thru the oil pressure switch. Feed the main power wire off something OTHER than the car's original wiring, esp anythign in the fuse box.
You could then wire a momentary switch as a second/parallel coil ground, to aid in manually running the pump for refilling the carb.
Turn the ignition key 'on' and press the momentary switch. Release that switch, and crank the engine as normal. When the oil pressure switch closes the pump will start running again.
Also consider any 4-5 seconds spent cranking the engine, while the mechanical pump is filling the carb, is time for engine oil pressure to be building. So that's a benefit.
Well, that was a Chevy, you just can't stop one of those.The oil pressure switches are good. Even better is the install of a "crash" or "roll-over "switch. Crown Vics were a good source for a cheap one. They are in the trunk near the spare.
Or buy one new. Painless Performance 80160 Painless Performance Rollover Safety Switches | Summit Racing
I was in one roll-over wreck ('68 Camaro, belonged to a girl friend and she was driving) and the engine was still running after we stopped. I reached over to kill the engine and it kept dieseling for quite a while after I turned the key. With it dieseling, I would bet there was enough oil pressure that it wouldn't trip the pressure switch.