fuel pump pressure?

[darkside03gt]

I am currently trying to get my supercharger tune dialed in and my tuner noticed that my fuel pressure is up above 60 at times. its a single focus pump with no other modifications. anyone know wtf it could be? because i sure a hell dont I thought it was normal with this pump.

 

[the98stang]

I am currently trying to get my supercharger tune dialed in and my tuner noticed that my fuel pressure is up above 60 at times. its a single focus pump with no other modifications. anyone know wtf it could be? because i sure a hell dont I thought it was normal with this pump.

Seems normal to me. Way better than not having enough fuel pressure that's for sure...

 

[NO BRAKES]

what fpr are you running? and are you seeing this 60lbs of pressure under boost or regular driving?

 

[SaleenGT2001]

sounds right to me too.

 

[2002BLGT]

his pressure is over 60 at idle

 

[darkside03gt]

its not right. over 60 at idle is wrong.

 

[bhuff30]

The FPR should be able to keep the fuel pressure down. I'd guess either the fuel pressure regulator isn't working or there is a restriction in the fuel return line (or the return is just plain too small).
At idle, you should get 30-34psi
At WOT with no boost, 40psi
At 10psi boost, 50psi
At 20psi boost, 60psi
See the trend?

 

[darkside03gt]

The FPR should be able to keep the fuel pressure down. I'd guess either the fuel pressure regulator isn't working or there is a restriction in the fuel return line (or the return is just plain too small).
At idle, you should get 30-34psi
At WOT with no boost, 40psi
At 10psi boost, 50psi
At 20psi boost, 60psi
See the trend?

this is a returnless system.

 

[SaleenGT2001]

he didnt say it was 60 at idle. if it is at 60psi at idle there is a problem

 

[SaleenGT2001]

has the car been tuned??

after my PPRV delete my FP was jumping like crazy!! after the tune it was smooth again

 

[DBMSTNG]

your tuner needs to adjust the voltages for the new pump in the tune. if he doesn't the adaptive learning may correct it. if he is using SCT stuff to tune the car, he should have the file needed to run the focus pump.

 

[darkside03gt]

I took care of it. thanks guys.

 

[SaleenGT2001]

so what was it??