Give Me Your Questions!!!!

[Diesel-Dan]

Originally Posted by Sick022500

Hey Dan,
I posted this question in another thread, then I found this one so I will ask the same here.
I ordered a FASS HPFP and I have a dealer installed in-tank lift pump. Do we need to bypass this pump, or do we connect to it on top of the tank without having to drop the tank and let the FASS suck through it?

You will need to do one of 2 things:

1. Get a stock sending module and reinstall it. (Which if you sweet talk your dealer, they might have a few just laying around waiting to be tossed in the trash)

2. Get a suction tube kit. STK-1001 for the 03-06 trucks and STK-1002 for the 94-02 trucks.


Either way.....tank needs to be dropped.....sorry!

[BSouth]

I just installed my FASS 95/150 and my Hot Rod VP44. I'm only seeing 14psi at idle, have yet to have it WOT because my tranny isnt gonna hold. But I had been in the throttle kinda hard and it hasnt been below 12psi. I was hoping for more psi at idle then 14. I had better psi at idle with my stock lp. Also I can not get my water seperator filter to stop leaking. Ive had it off twice and the gasket/o ring looks to be in perfect shape. Not really wanting to buy a new filter since this one is brand new. Anybody else had this problem?

[Diesel-Dan]

Originally Posted by 99cummins

I just installed my FASS 95/150 and my Hot Rod VP44. I'm only seeing 14psi at idle, have yet to have it WOT because my tranny isnt gonna hold. But I had been in the throttle kinda hard and it hasnt been below 12psi. I was hoping for more psi at idle then 14. I had better psi at idle with my stock lp. Also I can not get my water seperator filter to stop leaking. Ive had it off twice and the gasket/o ring looks to be in perfect shape. Not really wanting to buy a new filter since this one is brand new. Anybody else had this problem?

HUH....well if the Water Sep is leaking.....more than likely you are sucking air. This filter is on the suction side of the pump. Contact your selling dealer with your SN and have them call me. Double check the o-ring on the filter and make sure its pushed down all the way in its recess. Usally we see some fuel filters leak......WS we never see.

14 PSI is where we are setting these pumps up at now. Mine is at 14 and can pull it down to 11.5 WOT. This is fine. Will not hurt anything. VP's are not a hard pump to keep up with. The VP was set up to run at 14-15 PSI. YOu want more pressure, we have a spring that will put you up to 20 PSI if you want. Just let your dealer know its the "Old Style PS-1002 Spring". I think they are $3 IIRC........

[BSouth]

Is more pressure going to hurt anything? If 14psi is standard then I guess it will be ok. I got the pump from Gus @ farmboys diesel. Is he the person I should be calling about the leak?

[Sick022500]

OK, we got the FASS HPFP installed. Gutted the in-tank pump and put in a suction line.
Now the fuel pressure readings are;

Commander at idle 9psi (before FASS it was 5)
Mechanical guage at idle 13psi (before FASS it was 9)

I feel more comfortable with the FASS, but still need the Commander issue settled.

[Diesel-Dan]

Originally Posted by Sick022500

OK, we got the FASS HPFP installed. Gutted the in-tank pump and put in a suction line.
Now the fuel pressure readings are;

Commander at idle 9psi (before FASS it was 5)
Mechanical guage at idle 13psi (before FASS it was 9)

I feel more comfortable with the FASS, but still need the Commander issue settled.

I would still try to draw fuel out of a bucket and see if you get any improvement...should be about 17-18 for an HPFP. Especially since you modded the intank pump set up, just to make sure you have no restriction (OR sucking air).

Originally Posted by 99cummins

Is more pressure going to hurt anything? If 14psi is standard then I guess it will be ok. I got the pump from Gus @ farmboys diesel. Is he the person I should be calling about the leak?

As far as how much pressure is too high on the VP.....MAN...its anybody’s guess. You can find 100 different answers on here about that. I think there is more speculation on this than who killed JFK!! BUT i have yet to see any hard core evidence that shows major pump failure at pressure 20+ PSI. I see people running VP's upwards of 30-40 with no issue and see people running them at 13 with TONS of issues.....so who knows!?!? We don’t build VP-44's. We just set up our pumps for what people want them. My personal specs on the range of the VP is 5 PSI to 25 PSI. I got mine set up to 14 PSI...that is about SMACK dab in the middle.....and reckon it'll work just fine.

Yeah….have Gus call me. Give him your SN number.

[Sick022500]

Drove the truck home just now and got 12-13psi at 60mph, and it drops to 8-9 at idle. This is on the Commander. Before the FASS it was at 1-2psi at 60 mph and 4-5 at idle. Now I need to update my signature line

[BSouth]

Well cant get a hold of Gus tryed pm'n and callin. I have my serial # if u want it Dan. Let me know. Its still leakin.
Brian

[Diesel-Dan]

PM Sent.....we will get this handled one way or another.......

[brad06ctd]

Hey Dan I have a FASS 150/95-1006 on the truck in my sig. What should i see for fuel psi straight out of the box from you?

brad

[PULN PWR]

Originally Posted by Diesel-Dan

I want this space to be for YOU---The Cummins Forum User! Any FASS questions and problems i would love to be on here. SO this can help any with issues, looking to get info, and such. A FAQ Page of sorts.....so Please feel free to start any threads pertaining to FASS or the HPFP. HECK! I might even use some of yall to help me come up with better solutions to issues. Thanks to all in advance!

Dan

Which FASS set-up for 550-600rwhp?

Many thanks!

Chad

[Diesel-Dan]

Originally Posted by brad06ctd

Hey Dan I have a FASS 150/95-1006 on the truck in my sig. What should i see for fuel psi straight out of the box from you?

brad

13-14 PSI........BUT with that system, you can up the pressure as high as 80 psi (max) if you want.