1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

New fuel pump & fuel pressure regulator

Old Jul 18, 2004 | 09:38 AM
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New fuel pump & fuel pressure regulator

In preparation for a Sterling carburator that'll be coming my way shortly, I bought a 7psi carter fuel pump and a 0-4 psi Holley fuel pressure regulator, and I'm getting them installed in my car.

First of all, even though I ordered the base regulator, and the model number was the right one in the box it came in, what was actually inside was the chrome plated one. Cha-ching! that one is almost double the price! So that was nice of the Summit Racing guys



I bought and put in a cheapo 0-15 psi pressure guage from Autozone:



I was going to install the regulator with its mount on the firewall, but after not being able to find a suitable place in the firewall I said screw it and simply mounted it so the hoses support it:



Here's the fuel pump, ready to be mounted:



more pics will follow as it gets installed.
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Old Jul 18, 2004 | 10:59 AM
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Hey- I'll upload a pic of where mine is mounted on the firewall. Not hard to do. A few long bolts, some extra nuts as spacers, and you're in business.

BTW- Good luck with NO leaks on the brass NPT fittings. My first Holley regulator leaked like a bitch from every NPT thread. The only way I got it to stop was to put the regulator in a vise and SERIOUSLY torque down the fittings AND use teflon tape.

I'll try to get a pic here in a few minutes..
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Old Jul 18, 2004 | 11:03 AM
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Try not to mount your FPR on the firewall. It is dangerous, should your clutch ever shatter.
It is also illegal according to NHRA if you go to the track.

I mounted mine on top of my Rotorhousing now, and it looks pretty pimp.
IT's also legal now.
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Old Jul 18, 2004 | 11:30 AM
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Here are a few pics. That's interesting about the firewall, Directfreak. I was going to fab some kind of bracket to hold the FPR on the housing, but a long, tall bracket to keep it OFF the motor (I was afraid of high temps and vibration). Well- I'm not racing and I doubt i'll throw pieces of shrapnel from my clutch, anywhoo.









If you look closely you can see just how far in those NPT fittings are tourqed in..
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Old Jul 18, 2004 | 12:32 PM
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Originally Posted by Tom
Hey- I'll upload a pic of where mine is mounted on the firewall. Not hard to do. A few long bolts, some extra nuts as spacers, and you're in business.

BTW- Good luck with NO leaks on the brass NPT fittings. My first Holley regulator leaked like a bitch from every NPT thread. The only way I got it to stop was to put the regulator in a vise and SERIOUSLY torque down the fittings AND use teflon tape.

I'll try to get a pic here in a few minutes..
really? I'd think that a few psi would be no problem. If it was fuel injected, that would be a different story. I'll keep an eye out for leaks though.
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Old Jul 18, 2004 | 12:43 PM
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Originally Posted by Tom
Here are a few pics. That's interesting about the firewall, Directfreak. I was going to fab some kind of bracket to hold the FPR on the housing, but a long, tall bracket to keep it OFF the motor (I was afraid of high temps and vibration). Well- I'm not racing and I doubt i'll throw pieces of shrapnel from my clutch, anywhoo.


If you look closely you can see just how far in those NPT fittings are tourqed in..
Thanks for the pics. I like the way u did it. And yes I can see how far the fittings are in. Haha I see you also have the Bonez intake system. Which fuel pump are u using?
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Old Jul 18, 2004 | 01:37 PM
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Yeah- I thought low psi= no leaks too, but I was able to get like 2 -2 1/2 more turns when I got the FPR in a vise.

The pump I use is a weber. Fits great in the stock location. Very little effort to get her in there.
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Old Jul 18, 2004 | 01:54 PM
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Tom, thats exactly how/where I mounted mine. Weird huh? The SCCA seems to have no problem with it. It's passed 2 annual techs and race techs. I can see how the whole issue of clutch blowing could cause a problem though. But then the fuel line runs right by the bell housing also. Whats the NHRA say about that?
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Old Jul 18, 2004 | 05:22 PM
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Ha! Yeah- I looked around for something I could cut for a 1 piece collar and finally said SCREW IT! Grabbed a few nuts, a couple long self tapping screws and works like a charm.

I guess NHRA sees more motors/tranny's getting blasted due to the nature of the racing. I'll bet some classes require ballistic diapers too. I dunno- not an NHRA follower.
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Old Jul 18, 2004 | 08:13 PM
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Well, looks like you were right Tom, when I first turned the key to the on position, gas started to come out of the FPR. I had to remove it pending more tightening. Fuel pump is being more of a PITA than I thought. Might take it to the shop to get it done professionally...
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Old Jul 18, 2004 | 09:02 PM
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Talking

HEH, my regulator is still just dangling like cdrads above. Im so lazy
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Old Jul 18, 2004 | 09:05 PM
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Originally Posted by cdrad51
Fuel pump is being more of a PITA than I thought. Might take it to the shop to get it done professionally...
Yeah, i have the same kind of fuel pump as you(mines 15psi) and it was very, very
much a pain to get mounted
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Old Jul 18, 2004 | 09:27 PM
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this is gonna sound like a serious newb question, but i just got my fpr, and i was wondering, which side the guage is hooked to. im using a holley reg, with a autometer guage and isolater.
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Old Jul 18, 2004 | 09:31 PM
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On mine i hooked fuel source to the inlet of the regulator, the gauge to one of the outlets, and the other outlet to the carb
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Old Jul 18, 2004 | 11:00 PM
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cdrad51- I don't know what the specs are for the carter, but I imagine it should be mounted lower than the tank and no more than what, 1 foot from the filter? There should be some room on the inside of the rail to put that puppy in somewhere.

There are a lot of guys running Holley and Carter pumps, maybe throw up a thread asking for mounting pic's? Just my .02, but if the Carter came with standard bolts for mounting, I'd get thee to a hardware store and get some sizeable self tapping screws with bolt heads. Find a spot on the rail, mark and drill your pilot holes, and commence to wrenching.
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Old Jul 18, 2004 | 11:29 PM
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Yeah something like that. I plan to get it mounted where the cut valve was, which I removed. That's the only piece of rail where it can go.

I'm lacking the appropiate tools and that's what makes it harder too. And since it's my project car and daily driver, there is only certain moments when I can do these kinda things.
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Old Jul 19, 2004 | 08:25 AM
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Originally posted by perfect circle
this is gonna sound like a serious newb question, but i just got my fpr, and i was wondering, which side the guage is hooked to. im using a holley reg, with a autometer guage and isolater.
The bottom port on the Holley reg is for fuel 'in'. The top two ports (left or right side) are for fuel outlet. You can mount the guage on either top side. Basically, mount the fuel outlet line on the side of the fpr that makes sense. If you mount the fpr towards the drivers side of the engine bay, orient fuel outlet on the left side. Mine was located on the passenger side, so the fuel outlet was oriented the the right on the fpr..
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Old Jul 19, 2004 | 08:45 AM
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whats the reasons behind mounting the guage on the opposite side to the line for the carby??

heres my setup

http://www.users.bigpond.com/k.d.com...regulator1.jpg

it just seemed to me that if i have the guage inline with the carby it would display more accurately. ie the guage on the opposite side may say 4psi, but inline you might be chewing the juice and only show 3.5 psi... or does each side even itself out??

im probably in my own little world, but that was my ideas

-James
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Old Jul 19, 2004 | 09:19 AM
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I would imagine it should be the same psi, or barely noticeable. Maybe for a highly modded engine it would be better. I ran an in-line guage for a while and had the fpr plugged. It read the same psi when I swapped it directly to the fpr housing.
(I put an in-line fuel filter between the fpr and carb- to check and see if any brass or metal shavings were caused when i torqued the npt threads really tight into the fpr housing)
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Old Jul 19, 2004 | 02:36 PM
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in-line or in-FPR=no difference in pressure. ask DoLuck. He was there when I was troubleshooting my new Mallory and MSD fuel pump.

My carter was installed in back of the driver side wheel well. I used a braided fuel line for safety issue. and Yes, per NHRA, the fuel line CANNOT be above the bell housing.
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