fuel pressure setting w/ 550's and VPC??

[cnewingham]

I know what the stock setting is suppose to be and have also done research on the pressure setting w 550's and lex afm however I could not find what it should be with the vpc/550 combo. I am running the vpc with the 550 rom if that helps. Right now I have it set to 35 w/ vac hose off.

 

[drjonez]

use FP as a global fueling scaler....i.e. adjust FP to get close...then fine tune w/whatever tuning device you have...

 

[cnewingham]

thanks doc. I guess what I am wondering is if I should lower the fp a little like we do when we run the lex/550 combo or if the vpc 550 rom compensates for this at the stock fuel pressure

 

[drjonez]

you should do what YOUR car needs....not what someone on the internet says. get a WB, see where you're @....

 

[cnewingham]

get a WB

got one, thanks. I was just trying to get an idea of what people have had to do when they installed this stuff.

 

[drjonez]

you should do what YOUR car needs....not what someone on the internet says....

:1zhelp:

 

[suprarich]

What DR Jones is trying to tell you is What others have done, has nothing to do with what you need to do. Install your set up at stock fuel pressure and put a wide band on there and tune your fuel specific for your car. Someone elses set up could blow a hole in your piston.

 

[cnewingham]

yes, I know that all cars respond differently to the same mods but also a lot of processes are the same just like a used the lex/550 combo as an example (most lower there fp) however the psi might be different but they are usually within a couple psi of one another. I am not looking for an exact number but I was merely asking if anyone who has run this setup did they lower there fp rate at all to compensate for the extra fuel or if the vpc w/550 is set up to run on stock fp.

Thanks for the comments but I will figure it out on my own. No big deal

 

[CarlosPTR210]

Be carful!, a bad tuning in a long period! :cry: :cry: :cry: :cry: