check out ebay for good deals on the pumps..... all i did was mount my pump on the frame and i am running the the holley thru the stock carter that way i do not have starting issues with too much pressure....i will try and get pics of where i mounted it later....

 

i have a holley blue on my truck but no stock LP and with the comp on 5x5 and smarty on catcher 8 i see 9 psi WOT.

Ian,
Did you mess with the spring inside the pump?

 

I didnt mess with it, just installed it and let it be.

 

If you run or going to run a programmer or chip you need a real pump. I think the top of the heap there is the FASS because of the extra filters. Yes there is a cost associated with that but...

 

if it were me i wouldnt even worry about checking with a mech gauge right now and just upgrade the lift pump. odds are very high that the lift pump is shot or will be very soon and will take out the ip. do something with the fuel system!! as far as the gauge on the attitude, it reads exactly the same as my mechanical gauge, but rest assured, you will not catch me without a mechanical gauge either as mentioned above. also i have the vulcan big line relocate kit and a holley blue without the stock lp. pres at idle is 17(tweaked the spring a little) and at wot on 5x5 pull it down to 12psi. not bad for under 200$ i dont think and has been reliable for over 30,000 miles now.

 

fass is by far the best i have seen for a 24 valve

 

my opinions on a fass...
You have a filter in the tank, one hanging on the motor... why 2 more? "fuel air seperation system" how would you get air in your line? doesnt really follow thru for me. I cant justify paying 700 for a pump that is known to fail. (brushes go bad) and leave me stranded....

If I had the time & money I would spend it on the RASP which runs off your motor and not a electric pump. You can add filters if you would like..... yeah the FASS looks cool but I think its talked up more than anything

there are quite a few guys on TDR that are running the Holly pumps. so far there are a handfull that have been known to seep but I havent heard of any failures yet

Downside to a Holly blue.... its loud! but you wont hear it over your cummins! just on Key-ON you will hear the motor which is good but others might look at you funny. I just tell them is the smaller motor starting the big one.

just my .02, It might not be your thought but its mine

 

I would deffinately agree that if your looking to spend that kind of money on a fueling system the RASP is the only way to go. Will fuel any HP you could ever want and completely dependable. If your somebody looking to squeeze every once of Hp out of your truck the FASS and air removal ideas, may hold some merrit. But that's alot of money for that little bit of merrit. So far the Walbro is the only pump that I have heard nothing bad about and the price is deffinately right on them. Myself, I have fought this fueling problem to death and am even using a side by side, dual pump system right now so that I know I am never broke down on the road for LP problems. These two pumps run completely independent of each other. I think the RASP is gonna be my next stop. If I would have done it in the first place I would have saved money by now.

 

ok i think we are going to go with the Holly Blue and i looked at the big line kit from vulcan for $115....has anybody on here hooked up a blue without using a kit?....i know i can plumb it my only problem is where to get the pigtail....anybody have any ideas on this one?

Edit: ok i read back and seen the Ian didnt use the vulcan kit, Ian what did you do about the pigtail?

 

Not looking to step on anyones toes here...just supply some info

This is taken directly from the Piers Diesel website. This info is from Piers and NOT from the makers of the FASS units:

"Typically fuel tanks are usually mounted at least two feet below and ten feet away from the fuel pump. This configuration creates multiple problems associated with the fuel delivery to the engine. First, the injection pump has to draw the fuel from the tank by creating a vacuum. When diesel fuel is drawn by a vacuum fuel vapor is produced. Second, while the vehicle is underway the fuel is sloshing around in the fuel tanks creating entrained air. This circumstance has created a situation far from the manufacturer test cell conditions which results in air and vapor being mixed in with the fuel when it is delivered to the injector. By having entrained air and air vapor in the fuel the engine does not perform at the engine manufacturer's specification. Air and fuel vapor occupy the space that should have pure fuel, thus delaying the injection of fuel into the combustion chamber. This phenomenon is better known as "RETARDED TIMING." Air/vapor present in fuel is very inconsistent also causing varying degrees of changes in injection timing."

If you ever get the chance to see the FASS trailer and the FASS demonstration - make sure you take it in. I seen it last summer and Brad Exstam, the inventer of the FASS system schooled me on this very topic. He'll make a believer out of you too.