witch braided hose for mecanical fuel pressure gauge?

[bock]

For now, i have a 1 inch fuel pressure gauge on the fuel line.I want to move it away for the headers,is case of failure and fire.I just want to fix it on the firewall ,in the corner under the hood.

Can i use braided stainless steel brake line rated at 2500 psi for this?

 

[proxses]

I would check to see what material the line is made of. It needs to be able to resist the additives they now put in gasoline.
But most likely it should be ok as long as you can adapt the fittings.
Oh, also, the line may be a bit small as far as the inside diameter is concerned. You may not get proper flow. Most brakes are about a -3AN size, while they have fuel pressure gauges run a -4AN. Not too much of a difference.
Anyway, if it is teflon lined, your ok. I would just test it to see if your readings seem accurate, because of the smaller line, after the change.

 

[powershift351]

aeromotive

 

[hllon4whls]

You dont need flow to a fuel pressure gauge. You just need enough diameter to assure the proper pressure. I would suspect that the brake line would not be affected by the gasoline, but I personally have never tried it.

 

[Jayber]

Brake fluid is way more corrosive than gasoline. Brake line will work fine.

 

[bock]

Im gonna try it.

 

[bock]

what s ya think?

 

[89MustangGX]

Only thing that concerns me is having the gauge on the firewall. I might want to either put it above (like on the cowl) or on one of the fenders. That way if a fitting breaks or loosens up you don't have pressurised fuel spraying at the firewall.

 

[HISSIN50]

i checked in cuz im curious about this (gonna do it soon)...doesnt Jegs, etc sell the correct line and fittings?
sorry if i missed something and am totally wrong...good luck.

 

[jrichker]

Put a flow limiter in any gauge line you are concerned about breaking. As Hllon4whls has said, flow isn't a concern when all you are doing is reading pressure. A flow restrictor can be as simple as tapping the inside of the fitting nearest the pressure source to a common size like a 10-32 machine screw thread. Then drill a short matching thread machine screw with a 1/16" or smaller drill all the way down from the head to the other end. Coat the threads with blue silicone sealer and screw it in. Then cut off the part that stick out and assemble the rest of the fittings. Then if the line breaks, there will be a much smaller volume of liquid squirting out all over the place.

You can buy the Autometer Stainless Steel braided hose for like $60. Or a local shop that makes hydraulic hose assemblies can make it for you at a cheaper price. Ordinary low pressure hydraulic hose can be used in place of the Stainless Steel braided hose, the Stainless Steel braided hose just looks nice. I got mine for $4 at a place that sells industrial and military surplus parts of all kinds. The Stainless Steel braided hose goes for about $3.60 a foot and the fittings are probably about $5-$8 each. You can make your own and save some $$$, the shops may have a setup or labor charge to fabricate the hose assembly.

 

[bock]

I already have a 3 feet brake hose, that why im asking!

 

[jrichker]

I already have a 3 feet brake hose, that why im asking!

Teflon lined hose is Ok. Non-teflon brake hose is not likely compatible with petrolem based fluids like oil & gasoline.

 

[bock]

brake oil,is not petrolem based fluid?

 

[bock]

ok, i saw on the Allstar performance site,that its a teflon hose,so i should be ok.