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I have been looking for a replacement lift pump and am leaning towards a mechanical pump.  Are there any major differences between the Fuel Boss and the Predator? Anything that makes one so much better than the other such as quality of parts, kit completeness, customer service, etc? This will be going on the truck in my signature plumbed in with the stock filter for now. Im trying to build a reliable low maintenance driver/tow truck, not some high hp toy. Thanks for any opinions/experience that you can provide.

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  • Dieselfuture
    Dieselfuture

    I have a smaller tool box that I filled with random tools I had laying around, been in the truck for about 4 years now, used it few times and it was never for myself. Not saying that one day I won't n

  • One reason the fuel pumps are in or near the fuel tank is not because its pushing the fuel but rather it's pressurizing the fuel in the lines to keep the fuel from boiling and causing vapor lock.   Ga

  • My impression is the Fuel Boss has been out the longest of any mechanical lift pumps and there are not many complaints about them.

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I can only speak for the fuel boss as I’ve never dealt with the Predator. The Fuel Boss is great quality and the service from GDP is second to none, You will love it and probably never have to worry about fuel pump issues again. if issues arise it’s usually not the fault of the pump. I went with straight mechanical with no back up pump just for simplicity sake 

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 My impression is the Fuel Boss has been out the longest of any mechanical lift pumps and there are not many complaints about them.

  • Author

Thanks. I really havent been able to find out much about the Predator.

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3 hours ago, 01cummins4ever said:

I can only speak for the fuel boss as I’ve never dealt with the Predator. The Fuel Boss is great quality and the service from GDP is second to none, You will love it and probably never have to worry about fuel pump issues again. if issues arise it’s usually not the fault of the pump. I went with straight mechanical with no back up pump just for simplicity sake 

                                    :iagree:

 

I did install the back up fuel pump and have use it to purge air from the system when changing filters, VP44, and injectors: it is turned off for starting and normal operation. 

Edited by IBMobile

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I forgot about the Assassin set up from D.AP.  Anyone have anything to say about that one?

several years back, i was you! i was traveling the country and wanted reliability. my truck has a fass ddrp and i installed the fuel boss. Solely based on reviews...i could not find a failure, i heard of a couple but no confirmations.

 

the assassin had a few claims, and customer service at the time wasnt great. PDD has a new version with a pressure valve built in, it is still new to most, but should have good support.

 

 

i know i have emailed richard (GDP Fuel Boss) on sundays, and within minutes had return calls.

 

only issues i have at all are this...the drive pulleys have a fiber construction, they can become brittle. i do carry a spare but have never needed to use it. The other is YOUR install...make sure no debris gets in the line, i hung a check valve open and lost pressure...not a big deal, but i did reach out to richard for a fix...he called right back (11am Sunday).

 

personally, i have never needed the ddrp since i installed the boss (2014 ish). 

  • Author

Well i think I'll start saving for the Fuel Boss. Thanks to everyone for the info. Guess that Quadzilla just got pushed back again.

On 4/23/2019 at 8:16 PM, Gregturley said:

Well i think I'll start saving for the Fuel Boss. Thanks to everyone for the info. Guess that Quadzilla just got pushed back again.

With the fuel boss if you choose to go straight mechanical with no electric pump like @01cummins4ever ran his you can knock $50 off the GDP price since you won't need the Hobbs switch and a few less fittings.  It's an easier install too.  Of course if you get the big line kit too then it's $50 so it ends up a wash on the total price.

 

I also ran mine straight mechanical with no electric pump anywhere on the truck.  It has always performed flawlessly and fuel pressure has always been rock solid.

  • Author

Thats Bullet what i was thinking of doing. I have to do a side job or 2 and get some extra cash but this is next on the list of things to do.

  • 2 weeks later...
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Ordered the Fuel Boss Thursday and should have it to installl next weekend. Going straight mechanical. Does eliminating the stock electric pump cause any codes or turn on the check engine light? 

I think as long as you leave the relay in it should be fine. To get full benefits you need 1/2" lines throughout. 

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1/2" lines will have to wait. Im broke and dont have time to pull the tank to do a pick up. I just need a pump that doesn't randomly drop to 2 psi. Really cant afford a new vp44. Luckily i have the Neon to drive to work because this truck is parked until i have usable fuel pressure.

at a minimum, do the 3/8" bigline. i have mine plumbed from stock feed tubes to 3/8" through out...

 

it is totally fine. i run a superchips maxed out, with 7x.0085 (75 hp ish) and i idle at 21-22psi ( temp based) and see 25 psi sustained when on the throttle. 

 

Dont worry about the HIGH PSI issues most speak of, that is an issue when CRANKING, not idling or running,

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I'll be using the 3/8 line that comes withe the pump kit. It will be installed using the factory filter. I'll have to change the line from filter to vp44 later but it will be getting changed soon.

You will be fine with the 3/8 line that comes with it. But like you have planned, it’s good to have the bigger line going to the vp. 

 

If if you live in the cold country it’s good to leave the stock filter for heating purposes. But you will need the 24 micron pre pump inline strainer, mine is installed just aft. the frame mounted bulk head with shut off valve I made 

 

I have had no issues with check engine light and I still have the relay in it. I haven't checked for codes so not sure on that one but never tripped the check engine light 

The strainer is a very course filter you need prior to the pump to protect it from debris in thr fuel. I am not sure what type is needed for mechanical pumps. You definitely need to go the factory fuel filter. That is the only filtration and water seperation on the truck. The Vp and injectors need that protection.

Edited by dripley

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Thanks. Ive got one ordered. I would have thought the guy at Glacier Diesel would have mentioned that when i talked to them.

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@01cummins4ever how does that Quad XZT do with the RV275's? I found one used i couldn't pass up and should have it Mon-Tues. Figured i could use it for a year or so and save up for an Adrenaline, converter, and valve body. Hopefully I'm done spending money fixing problems and can save for fun stuff now.