I currently have a pe4200 that for almost a year has been fault free but now is playing games with up and down fuel pressure. Is it worth getting the fass or is there some other set up better than it?? Any feed back is welcome.




JIM

 

You can get the RASP which is a mechanical pump but it's only been out for a couple of months so it hasn't tested itself. The FASS has been out for a little while and I have yet to hear a complaint on it.

 

Well, other than the price.

 

jI think the FASS is great. It's boring looking at the fuel pressure gage. I've got 80 or 90 thou on mine. The fuel filters last forever. In the long run the FASS may be cheaper than the stock system when you count the purchased lift pumps and filters.

 

I've spent probably twice on filters and pumps what I spent to have the FASS installed. Like Bill says, the fuel pressure gauge is boring now, it just goes to 15 and stays there. The filters are good for like 80000 miles or so. Not to mention the scraped arms and knuckles and nearly freezing half to death changing the last one out in 20 degree weather alongside the road on 460 in Lynchburg on a nice November morning. That was the last straw for me.
FASS on man, FASS on.

 

....okay, how much is it, and where do I get the set up?

 

I got mine at Forest City Diesel, one of the sponsors of this site. His ad appears at the top of the page from time to time. I'm sure he would ship you one.

 

The link in the banner ad just takes you to the DTR On-Line store.

PM Keith here Forest City Diesel for more info.
Phone number: 573-265-5595

PS: Forest City Diesel also provides the winner's plaques for our DTR Truck of the Month.

 

 

Happy, in your underhood power box there is a relay called ASD (automatic shut down) It is powered by a wire from the PCM and is the scorce of the power that goes back to the PCM to power the lift pump harness and the alternator regulator. It is full 12 volts, has a 30 amp fuse, a number ten wire goes over the harness to the PCM so you can pick up the source from either side of the truck.

The output of this relay is the same key on sequence as the lift pump harness. The difference is that it is full 12 volts instead of the lower keyon voltage. I would have to get out the service manual, but I believe that the wire is a number 10 and is green with a purple trace. I have both the alternator regulator and the FASS running off this feed. It will do what you want and you don't need a seperate fuse. Look in the cover and find the ASD relay and get the power from there, problem over. You will not need the relay any more as it is already at keyon power. Just run the wire striaght to the FASS and ground the FASS wire to the frame.

 

wow thanks for all the info. I am going to wait for my pe4200 to die and then fass baby.

 

I'm getting fairly close myself to getting the FASS or a RASP......just can't make up my mind. I've kind of did a short PRO's and CON's list but I'm still on the fence. My Holley Blue is starting to give me all kinds of screwy readings the last couple of weeks I find myself watching the FP gauge more than the road. Pressures are not in the danger zone yet but, you know when you get that gut feeling......yeap it's time to anty up and do it right.

FASS PRO's
1. Cheaper
2. Reliable (still electric though)
3. Filtration
FASS CON's
1. HUGE
2. Electric
3. Not thrilled on mounting location on SB.


RASP PRO's
1. Mechanical
2. Small
3. Reliable (Should be anyways)
4. No questions on mounting location
RASP CON's
1. Cost to include plumbing close to $900
2. Not much information on it
3. Plumbing could be a little more involved than the FASS.
4. Did I mention cost?

 

When did your heater blower burn out? The motor is about the same size and the brushes are replacable so the motor is a better build. Yes they will wear out, but so won't the other unit. Question is when. All you have to wear out is the bearings or the brushes. I figure on once a year or so checking the brushes and when they get worn, replace the motor. I carry a new set of brushes just in case. I expect the bearings will get noisey if they start going.

The unit fits under the bed, why not on a short bed? Mine is under the corner of the cab due to my operation. I think the filtering alone is worth the change. Mine is on a 5 micron filter now from Baldwin. Stock is ten.

I think there is also another advantage compared to the mechanical pump. Run low on fuel or out and it charges right up, pronto. With the mechanical it would take cranking to get fuel primed.

Almost humerous, get your hands all greesey on the road, drain a little fuel from the filter, wash your hands, spray them with windex, wipe them off. Not clean enough to eat with, but no dirty steering wheel.

 

Haulin_in_Dixie,
I think you forgot that the RASP utilizes the original electric system for this kind of situation.

J Double another pro you may want to consider with the RASP is the 5 year warrantee and no need for the once a year brushes inspection. lol