Fuel Pressure For Nismo Adj Fpr On Gtr

[skylinegtts]

Hey guys,

im about to fit a nismo adjustable FPR to my gtr which is standard, including the injectors. what fuel pressure do i need to set it at?

doing this because ive got this flat spot where the car wont rev and splutters violently. should i bump up the fuel pressure to fix this? if so to how much higher? also to note got splitfire coils and ignitor is working prefectly and had the injectors serviced and flow tested and showed up good.

Cheers

Stephen

[djr81]

There is an easy answer to this. Don't try & tune the car with an FPR. Do it properly.

[skylinegtts]

tuning wasnt mentioned

i wanted to know the fuel pressure to use the nismo one on the standard setup to check if the standard FPR is causing problems.

[R31Nismoid]

No it wont.

Very silly mod to try and fix something mate.

Get the car inspected. If its 'violently' jumping around, there is something wrong with it.

Could be fuel pump, blocked fuel filter, lazy injectors, many things.

A FPR will NOT fix the problem

[skylinegtts]

so there isnt a chance that the standard FPR if faulty could cause the problem.

i have a nismo FPR in hand which is why im asking, i dont want to have to go out of my way and buy another standard FPR when i can use something that i can use.

will be looking at the fuel pump aswell... as mentioned injectors have been inspected and tested.

[djr81]

It is extremely unlikely that the FPR is the problem.

If you suspect a fuel problem the FIRST thing to do is to replace the fuel filter.

Second thing to do is to check the ECU to see if it has been modified or is stock.

Third thing to do is pull the pump out & check that the strainer on it is clean.

Then take it & get it run up on a dyno. Check the AFR's etc.