proper fuel pressure with my FPX

[cesspool]

I just installed a RiffRaff FPX in my excursion. I have a under the hood fuel pressure guage from Stealth and it is reading 95-100psi, at times a bit more. is this OK? or way to high?

it says it should provide 65-67 psi, but that is way off what I have. I am also fairly certain the spring is seated correctly, as I took my time to install this so that i didnt have to take it back apart.

http://www.riffraffdiesel.com/mm5/me...e=F731-FS-MISC

http://www.stealth-automotive.com/in...roduct_id=1024

[SJB]

It was my understanding that the kit would be around 65 psi. Around 100 psi seems really high if that is accurate. I don't have enough knowledge about the system to tell you whether it would hurt anything or not.

I am curious how the install went? I'm saving up for both my FRx and HPx kits right now, and looking for any feedback that I can get.

[cesspool]

I'm talkign with Clay at RiffRaff and he says the high pressure will affect MPG's but that's it. I guess i will check the spring again....

The HPX was easy for me cause I was changing the turbo boots at the time so my engine valley was mostly empty. I imagin it could be hard to do if everythign was inthere. The FPX wasnt bad but both plugs are a SOB to get too, especially the passanger side. I almost took the AC brackett off. once you get the 2 nipples in the ports though, it's pretty much smooth sailing from there.

[SJB]

Originally Posted by cesspool

I'm talkign with Clay at RiffRaff and he says the high pressure will affect MPG's but that's it. I guess i will check the spring again....

The HPX was easy for me cause I was changing the turbo boots at the time so my engine valley was mostly empty. I imagin it could be hard to do if everythign was inthere. The FPX wasnt bad but both plugs are a SOB to get too, especially the passanger side. I almost took the AC brackett off. once you get the 2 nipples in the ports though, it's pretty much smooth sailing from there.

Thanks for the feedback.

[OSAW]

Its a FRX (fuel rail crossover).

Yes that is high for the fuel pressure.Talk with Clay he will walk you through it and help find the prob.Great guy to deal with.

[cesspool]

It's fixed. Clay was al,ot of help. I cant believ it was th spring after triple checking it when i installed it...

[SJB]

Originally Posted by cesspool

It's fixed. Clay was al,ot of help. I cant believ it was th spring after triple checking it when i installed it...

I'm planning on installing one of these kits, but I wasn't planning on installing a gauge. Is there anyway I would know if I possibly had the spring in there wrong by (feel or performance) if I didn't have a gauge?

[OSAW]

Originally Posted by cesspool

It's fixed. Clay was al,ot of help. I cant believ it was th spring after triple checking it when i installed it...

Nice! Glad to hear Clay was good help.

[Tempsho]

Originally Posted by SJB

I'm planning on installing one of these kits, but I wasn't planning on installing a gauge. Is there anyway I would know if I possibly had the spring in there wrong by (feel or performance) if I didn't have a gauge?

I would be curious about this as well.