Fuel pressure regulator where to mount

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skep419

skep419

5.9 Magnum 4 speed afficionado
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Wondering if I even need a regulator with a carter high flow mechanical. I have it out of harms way on the fire wall but it would look a lot nicer with the lines running up from the pump to the carb. Anybody got pics of there regulators?
 
I read in Don from FBO's tuning guide that the regulator needs to be real close to the carb to recieve a good signal of fuel pressure so it'll respond fast and keep the pressure steady. I haven't tried it either way so I don't have any experience on how much difference it makes.

I'm running a Carter high flow mechanical pump and it only developes 6.5 psi max so I don't run a regulator. Mines the street pump. There is a strip pump that puts out about 8 psi that needs a regulator so it don't push the needles off the seats. What does yours max out at? If it's no more than 7 your fine without one.
 
fishy68 said:
I read in Don from FBO's tuning guide that the regulator needs to be real close to the carb to recieve a good signal of fuel pressure so it'll respond fast and keep the pressure steady. I haven't tried it either way so I don't have any experience on how much difference it makes.

I'm running a Carter high flow mechanical pump and it only developes 6.5 psi max so I don't run a regulator. Mines the street pump. There is a strip pump that puts out about 8 psi that needs a regulator so it don't push the needles off the seats. What does yours max out at? If it's no more than 7 your fine without one.
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It puts out 8.5 figured I couldnt get around using one. I see a lot of people put them on the right side wheel well. I would like to have the fuel line come up from the pump through the alt bracket and then mount the reg. and fuel pressure gauge. Is that going to be to hot of a spot?
 
8.5 is really pushing it. You may have flooding problems if you don't use a regulator. You'll be fine runing the line through there as long as it don't come in contact with anything. I see alot of guys running their regulator on the fenders and I don't really know if it affects things like Don says but he is a professional racer so I figure he knows more than me and that's why I go by his saying to run them close to the carb.
 
I was having problems with flooding my Demon 750 so I put on a guage and it read 10 PSI, engine cold, with the Carter high flow mechanical. Shortly thereafter it got a Holley regulator set for 6.5 and problem solved. You can see it just downstream of the fuel filter and right close to the carb.

Terry

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demon seed said:
I was having problems with flooding my Demon 750 so I put on a guage and it read 10 PSI, engine cold, with the Carter high flow mechanical. Shortly thereafter it got a Holley regulator set for 6.5 and problem solved. You can see it just downstream of the fuel filter and right close to the carb.

Terry
Click to expand...

Thanks that looks perfect.
 
As close to the carb as possible.

Most guys bolt them on the fender, and NHRA regs says it must be 6 inches from the firewall, but the closer to the carb the better.

I had all these questions myself and I 've been wondering why none of the fuel issues are mentioned in the Mopar performance chassis manual????

I guess they did not want to be held liable if someone had a fire and blamed it on the M/P advice, plus the rules and regulations change so frequently, they must have figured they better just stay away from that topic...dunno.
 
Well i got the new lines in it looks way better.
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Super dirty though! Built to drive I have two miles of gravel before any tar rain or shine. hahaha
 
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