Autometer 4363 Electric fuel pressure gauge. E85 Pro-Maf

[Norwegian-VR6]

Im almost done putting my car togheter again. Just waiting for some parts from Frozenboost.

I have one of these gauges coming in from Summit. Since im thinking off playing with E85 mix with the ProMaf setup, i thought it would be a good idea to have this as a insurance togheter with the AEM Uego.

Let say you run the oem 3bar fpr. Should the gauge read 3 bar at idle or at full throttle ?
I have a Eurospec adj fpr, and Eurospec had no clue what setting it has from the factory.

[24vGTiVR6]

my gauge reads ~3bar @ idle, with the stock 3bar FPR

not sure how it reacts on full throttle as the gauge is under the hood

[bonesaw]

You want to set fuel pressure with vac disconnected. It will lower with vac and raise 1:1 with boost. So if you run 3 bar fuel pressure and run 20 Psi of boost you will see 63.5psi fuel pressure when at 20 psi boost

[Norwegian-VR6]

Thank you for help.
To sum it up.
1. Set fuel pressure without vac to your disaired level. In my case a little over 3bar
2. Plug in vac and see that the vacum reading will drop a little bit.
3. Boost will add fuelpressure 1:1. So 1 bar boost reads in my case a little over 4 bar fuel pressure,

Did I get it right?

[.therealvrt]

Yup. You got it.
What type of injector are you running? I know the ID iinjectors like higher pressures. I idle at 60 psi

[Norwegian-VR6]

Siemens Deka 630cc. C2 ProMaf setup.