I am looking into the Autometer Sport-Comp Fuel pressure gauge, but which one? I checked out their site, and found 3. They have 0-15 PSI, 0-100 PSI, and 0-15 PSI with Isolator. Which one should I get for a Supercharged Application? I don't know anything about Fuel gauges, and I want to buy one soon that will mount in my Triple Pillar Gauge Pod. Thanks guys.

 

Well fuel injected cars pressures range from 35 to about 50 with booster pumps pushing it into the 70-80 psi area.
Looks like the 100 psi is the only one that'll work for you.

 

ok, so is it hard to install? Would there be any reason why I can't install it inside my car? It says on the gauge to mount outside. Thanks.

 

our cars run 58psi stock fuel pressure. obviously, the 0-15psi gauge wont work. if you want to run the gauge to the inside of your car you are going to need the electrical version. the mechanical would have fuel coming into the cab which could potentially be hazardous.

 

ok, so which is better, Mechanical or Electrical? Thanks.

 

NEVER get a mechanical fuel pressure gauge!!! Unless you are a serious dragster or you mount it outside the car. Mechanical means you run a fuel line directly to the gauge, BAD!!! Get electical and you will just be running wires to the fuel line. Only bad thing is that electrical fuel pressure gauges are mighty expensive!

Some cars have the gauges mounted on the hood, I've seen many like this, it keeps fuel where it should be.