Stock fuel pressure setting?
- Thread starter NJMatt50
- Start date
Jimmy
Banned
Re: Stock fuel pressure setting?
In the 40's with the line off.Its been discussed here a lot,if you wanna search for the exact answer.
In the 40's with the line off.Its been discussed here a lot,if you wanna search for the exact answer.
RealFastV6
@jb_and_his_coffee
Re: Stock fuel pressure setting?
So close. 38-43 psi is the specification in the SyTy supplement.
So close. 38-43 psi is the specification in the SyTy supplement.
It's just a six
Super Member
Re: Stock fuel pressure setting?
When I was using stock injectors & an ultimate chip I ran as high as 52 psi (boosting up to 21-22 psi.)
Normally w/a stock truck & chip, there is a hesitation, usually because the fuel pressure was too low, I had checked mine when it was all stock & the fuel pressure was 38 PSI, so I bumped up the pressure to 42 PSI & the hesitation went away, it was a lean hesitation.
Not all ultimates are the same though.
When I was using stock injectors & an ultimate chip I ran as high as 52 psi (boosting up to 21-22 psi.)
Normally w/a stock truck & chip, there is a hesitation, usually because the fuel pressure was too low, I had checked mine when it was all stock & the fuel pressure was 38 PSI, so I bumped up the pressure to 42 PSI & the hesitation went away, it was a lean hesitation.
Not all ultimates are the same though.
Re: Stock fuel pressure setting?
Well, I bought the Ultimate when they first came out, around 2000?
At that time Todd Austinson recommended 50 p.s.i. with the line off/capped.
I never liked the Ultimate chip for the very reason you described. It always had an off-idle stumble that I could never fix until Michael Hood reprogrammed the chip a few months back.
It FINALLY got rid of the off-idle stumble. Then, the screen on the box went blank, I didn't know which program I was running, and I had to ditch the Ultimate--couldn't find anyone to fix it.
Best,
Ranger
Aiken, SC
Well, I bought the Ultimate when they first came out, around 2000?
At that time Todd Austinson recommended 50 p.s.i. with the line off/capped.
I never liked the Ultimate chip for the very reason you described. It always had an off-idle stumble that I could never fix until Michael Hood reprogrammed the chip a few months back.
It FINALLY got rid of the off-idle stumble. Then, the screen on the box went blank, I didn't know which program I was running, and I had to ditch the Ultimate--couldn't find anyone to fix it.
Best,
Ranger
Aiken, SC
