Oilburner04

I am in the market to purchase an aftermarket fuel system to put on my 2004 to get away from the weak factory LP. I am somewhat new to fuel systems and having difficulties trying to decide on which route I should go. The only mods I have on my truck as of now is intake/exhaust and a Bullydog TD. I have looked at fuel systems from F.A.S.S., Walbro, GFS, and the systems that wicked diesels sell. From reading on DTR, I was leaning toward a Walbro 392 system, then today I was told that a system that is boost regulated would be better. Any advice on what system I should go with is greatly appreciated. I wanted to check with the "professionals" on here before I made a decision that I may regret down the road. Thanks in advance!

Luken

Go with a system from GDP. Give Richard a call and see if you can get his new fuel boss system.

tritont

first I'll say i'm no expert but, I do have experience with the GDP walbro kit. I've done plenty of research myself and think you can't go wrong with any of those.

The FASS had a problem being loud which they've fixed with a new system. The con to it is, it's expensive, bulky and not easily serviceable on the road.

The Wicked kit has a lot going on with it. They claim it to be operational for up to 500K. It has a adjustable pressure regulator by turning a screw which is nice. The con IMO is, the filter is mounted to the pump and also not very on the road serviceable. You can retain the stock line though to revert back to if necessary.

The Walbro GDP kit is probably the most user friendly available. It does have a pressure regulator also but, it consists of washers and springs that can be replace to adjust the pressure. It comes set at 22psi which from everything I've read, is the optimal pressure. It's where mine is set and I have all the fuel I need. The Pro to it is, the pump is very reliable and inexpensive ( around $100 ). It can be changed out on the road in 30 minutes or less.

The GDP kit is very easy to install as would be the Wicked kit. The FASS system will take a little more doing and a little more room.

I would suggest contacting Wicked or GDP and talk to them about their systems. One thing I can say for sure is, the customer service you'll get from them will be of a much higher standard than FASS. To me, that makes or breaks a deal !

maddog madden

if i had it to do over again id go with the GDP. Just my .02

omaharam

Another vote for GDP.

ScienceOfSpeed

i have the F.A.S.S, i like the idea that pump seperates the air out of the diesel. never had a problem with the pump and i think it is worth the money,just my opinion

973604x4

another GDP vote coming from a former FASS owner

Luken

There are alot of those...Lol!

Oilburner04

Thanks for the replies. A question I have with the Walbro GDP kit is does the system do away with the factory canister/fuel filter, and secondly, when installing a GDP kit, do you have to drop the fuel tank in order to hook the lines up? If I go with a GDP kit, I was considering getting the pre-filter strainer, MK-2 filter and the big line kit also. I assume that would be good setup to go with.
I like the eliminator kit from Wicked Diesels as well, however like the F.A.S.S., the filter is mounted to the pump. I looked at a truck that had that system installed and you could see the filter hanging below the body line, didn't really care much for the looks of it. I asked Wicked Diesels about the system they have with the Walbro 392 pump with it, and they said they didn't recommend running it on an 03-04. Something to do with constant pressure being pumped all the time would lead to a shorter pump life vs one that is boost regulated that decreases/increases pressure with boost.

tritont

I'm not sure about a 03-04, is the OEM filter the same as newer trucks ? If so, you only do away with the OEM filter if you want. In the newer trucks the fuel heater is a part of the OEM filter housing so that's one reason I opted for it's continued use. Plus with a strong pump behind it, you really don't lose noticeable pressure from more restriction.

The GDP kit comes with a new intank draw tube so yes, you'd need to drop the tank to install it. I did mine by myself. It wasn't that big a deal. Just be sure you only have fumes in the tank :-) From there you'll run a line to the pump, then to the OEM filter, then to the 2 micron filter, then to the CP3.

I'm sure the guys over at Wicked know what they're talking about but, I'd think a pump that cycles on and off all the time would have a more premature failure rate than one that doesn't. I've seen Wicked's set up and I'm running Richards set up if you ask me....as I said, you can't go wrong with either.

Here's a pic of my GDP install. I obviously changed everything to AN fitting with SS lines but, it installs the same. a pre-filter before the pump, big-lines to everything and the MK-2 filter.

You can get a 7 micron filter for the OEM location so by the time it goes through the 2 micron and on the CP3.... I'd say it's quite clean. The brass do hicky at the top of the pic is the pressure regulator which can be changed by opening it up and changing washers and springs. 22psi seems to be the optimal pressure though..... depending on what you running.