I'm looking to get one and I'm leaning towards the Auto Meter 4367 Electric fuel pressure gauge because its easier to run wires than it is tubing. That and theres that many more spots to possibly leak....some day. SO, what are you guys running and why? Thanks

 

I'm running 30 psi isspro mechanicals. I have 1 with an isolator and one with just a shutoff incase of a leak. I have a 3rd here at the house I need to get into the 89.

 

Why did you go with the mechanical and not the electric?

 

Mechanical= less chance of going bad. I already have a bad sender for my isspro oil pressure gauge in the 93. Its going to be like 50 bucks for a repacement and then they say it won't be a matched set so it could be plus or minus 5 psi from true. That was stated right from Don Wendlick at isspro.

 

ANd also you can get a mechanical gauge with no isolator for just over 30 bucks instead of well over a hundred.

 

What did you use for tubing, copper or plastic and have you had any problems leaks etc?

 

Well, to tell the truth, the 93 has the isolator and I isnstalled those like 2 years back. And today I installed one in my 92 with no isolator. I used 1/8 inch copper line that has a sleeve of vacuum tube the whole length. It also has a 1/4 turn valve on the engine so I can shut it off if it springs a leak. So, after 10 minutes of running, no leaks yet.

 

I'm just running my outgrown boost guage. been on there for about 3 years with no trouble.

 

What is an isolator and is it an extra thing to buy or does it come with the gauge? I was thinking fuel gauges are like oil pressure gauges, a line directly from the port on the engine to the gauge.

 

An isolator is extra. Genos sells them as a kit, but I just buy the gauge. It keeps the fuel on one side with a bladder.

 

Thanks I will check them out. Now where do you install the T for the gauge, between the VE pump and the filter?

 

Genos sells a banjo bolt that replaces the one where you bleed the filter. It has a threaded hole in it for 1/8 inch pipe. Its like 7 to 10 bucks. Or you could take out the stock banjo bolt and drill it to the correct size then tap it with a tap. I just did that on my 92.

 

Thanks Again!! I just looked at the filter assembly off the 96 I have. It has a banjo bolt with a 1/8" plug in it on the out side of the filter. So I think I'm golden there.

 

On a similar topic, what are you guys using as fluid in the run from the 'isolator to the gauge? Where are you getting it? Id assume it needs to be something thermally "stable".

 

The fluid is the air.

I ran a mechanical 30psi pressure gauge rated for oil. I kept it under the hood.