Air pressure regulator on fuel line? Yep! - Mustang Evolution

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Old 01-09-2015, 01:14 AM   #1
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Air pressure regulator on fuel line? Yep!

Okay, so today while I was at work, I noticed this air pressure regulator that was adjustable, and didn't use any diaphragms. Its made to regulate air flow into a spray gun. But knowing me, I don't use stuff for what its made for. I bought the thing for $10 and threw some fuel fittings on it that we had in stock. I don't really think the fact that I am putting gas through it instead of air is going to be a huge deal. I check fuel pressure at the Schrader valve with a tire pressure guage all the time. I did this method instead of buying a purpose built fpr for a few reasons.
1- It was right here right now. Fastest fpr to arrive was going to take 4 days. I need to drive my car sooner than that
2- Its more interesting
3- Its more interesting
4- I couldn't resist

[/IMG]

http://i1068.photobucket.com/albums/...psd23ce65d.jpg


I am going to test out how it works as soon as possible and get back to yall. It may help somebody out in a pinch!
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Old 01-09-2015, 01:26 AM   #2
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http://i1068.photobucket.com/albums/...psab272890.jpg


It has a guage on it too. You can regulate it from 0-180PSI. So technically it could work with any fuel pressure any of us come across. Idk how much fuel pressure diesels need though.
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Old 01-09-2015, 12:23 PM   #3
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Please be careful. If it's not designed for fuel it may not be able to keep fuel in. I may be over cautious but I would not use it.

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Old 01-09-2015, 03:38 PM   #4
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I'm happy to see that the marijuana cigarettes don't seem to be affecting your ingenuity at all, Panther, but I have to agree with matcox on this. I seriously doubt that an air pressure regulator has internal components that can withstand being immersed in gasoline for long periods of time. In any case, I'd hate for you to have to find out the hard way that it can't be used for that purpose.
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Old 01-10-2015, 10:28 AM   #5
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I had a similar set up in my car ( it was on for less than 5 minutes to check fuel pressure) and it pissed gas all over everything. It took a minute or two for the seals to blow out but when they did it was bad
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Old 01-10-2015, 11:11 AM   #6
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yup that gas is going to eat all the rubber and plastic if its not meant to hold gas.
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Old 01-10-2015, 07:52 PM   #7
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This has burnt Mustang written all over it, those bushings, seals, ect aren't rated for fuel. No to diswade you but you might want to look at something build for either a automotive or aeronautical need. I just don't want to see you, your passengers, or your Mustang dead.
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Old 01-10-2015, 09:18 PM   #8
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Yeah I am going to take the thing a part and look for any sort of rubber seal or something that would have a problem with the fuel before I plug it in. This thing doesn't appear to have any diaphragm in it like some do, that's why I thought it had a chance. I think O-Rings will be okay considering the fact that they use O-rings in a lot of carbs. Especially dirt bikes
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Old 01-10-2015, 09:24 PM   #9
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You do you man, just keep a very close eye on it and a fire bottle in the car.... I keep one in my car just for peace of mind on a car that I've poured damn near every cent I've made into
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Old 01-10-2015, 10:08 PM   #10
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I took it apart and there is nothing in there that's not made of metal and even if there were, there is no possible way for it to escape the actual pressure regulator. The only thing that's not sealed off by impermeable steel and brass is the inlet and outlet from it. Even the dial is just a screw that goes into the body
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Old 01-11-2015, 12:47 AM   #11
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Quote:
Originally Posted by BA68 mustang View Post
You do you man, just keep a very close eye on it and a fire bottle in the car.... I keep one in my car just for peace of mind on a car that I've poured damn near every cent I've made into
Yeah for sure. I always have an extinguisher inside my car and one is always in reach when I am working on my fuel system.

Honestly though, id rather have this home made FPR on my car than a mech fuel pump safety wise
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Old 01-12-2015, 09:54 AM   #12
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BOOM!
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Old 01-12-2015, 09:57 AM   #13
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Quote:
Originally Posted by yellowconve View Post
BOOM!
Did he blow it up?
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Old 01-12-2015, 11:41 AM   #14
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not yet but there talking about riding around with a fire extighuesher in the car idk but if i got to do that to have that pressure regulator than idk forget that they are literally planning on lighting on fire, if u got one in there ur waiting for it to happen
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Old 01-12-2015, 12:36 PM   #15
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That's not true at all, that's like saying your waiting for your house to burn down just because you have smoke alarms and fire extinguishers. It's a cheap form of insurance for those if us that put ridiculous amounts of time and money into cars were proud of

---------- Post added at 01:36 PM ---------- Previous post was at 01:35 PM ----------

And if it's mounted correctly not rigged a lot of people think it looks good
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Old 01-12-2015, 12:43 PM   #16
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to each is there own brotha.
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Old 01-12-2015, 01:29 PM   #17
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Being into rock crawling and rock bouncing I find a fire extinguisher to be a good idea but roll overs are common and so are the vehicles catching fire after a roll over. Having a past in a fire dept I think they are great in all vehicles because it might not be yours but it could be the guy who just passed you a few minutes later down the road, and if you involve the vehicle in motorsports then it's an even better idea.
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Old 01-12-2015, 06:54 PM   #18
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I've grown up around Motorsports so fire bottles in street cars is quite a normal sight for me, my uncle has even saved some guy on a highway coming back from VIR a few years ago because he had one in the race trailer
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Old 01-12-2015, 10:58 PM   #19
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I wanna know if this worked?


Killing time isnt murder, it's suicide
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Old 01-12-2015, 11:21 PM   #20
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His car caught fire and the insurance won't pay because it had an air pressure gauge for a fuel gauge.




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Old 01-13-2015, 12:16 AM   #21
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Quote:
Originally Posted by Aggiesrok View Post
His car caught fire and the insurance won't pay because it had an air pressure gauge for a fuel gauge.




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Lol


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Old 01-13-2015, 08:23 AM   #22
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It worked. There is no possible way for fuel to escape the regulator. It is a one piece unit with no rubber seals or diaphragms. I put it on, closed the valve completely, backed the dial out 1 full turn, and the car no longer floods out. Cut fuel pressure down to 4PSI from 7.5 psi.


If you could see this thing in person, you would never guess it was meant to be an air pressure regulator. And you would see what I am talking about as far as the unit being 1 piece of cast iron or whatever metal they used for it.
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Old 01-13-2015, 08:32 AM   #23
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I still check it before and after every drive along with my oil and coolant.
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