I have a FASS without the filters and i am happy with it. I got the 95GPH pump cause i wasn't planing on doing competition stuff with it anyways. I know the VP44's have a hard time starting the truck if there is 20psi or over, thats what i have been hearing. I haven't had any trouble with mine, thats why i got the 95GPH FASS pump. I must say spening the $500 on that was better then spending a lil less on a factory lift pump that won't put out enough. As far as the air dog pumps go, they look similar to the fass pumps. I heard good things about them too. The pumps have some what of a humming noise, but with the truck running you can barely hear it. My buddy Bil bought a Walboro pump and that looks just like the factory one except it puts out better fuel pressure. How much i don't know. But my buddy Bil didn't want the FASS cause he wasn't planning on doing any competition stuff either. He just tows a huge 5th wheel camper trailer. IMO i would say go with air dog or FASS. You can get them without the filters. I didn't want them thats why i didn't get them. Good like with your choice.7.3stroker said:im goin to install a new lift pump truck is goin to be about 500hp what do yal recomend,i no every one says fass,but is it worth the money, what about air dog, or jus as a pump its self from places like bdpower
You might want to stay above 10 PSI... I lost my first VP44 at 8 PSI. :wowsstockton said:And from personal experience, I love my fass. 2 years almost 40k on it without a single problem with it. You may encounter problems if your VP has been exposed to 5psi or less fuel pressure.
I got my gauges right at about 50K miles and realized my pressure was getting low. So I can the Dodge dealer and found about the lift pump diagnostic...sstockton said:You lost your VP with 8psi. How did it die? They will still die on a 12-16 psi, but not for the same reason that they die on really low pressure, they either seize or the electronics die the wearing out housing.
sstockton said:You lost your VP with 8psi. How did it die? They will still die on a 12-16 psi, but not for the same reason that they die on really low pressure, they either seize or the electronics die the wearing out housing.
As for the 5psi comment, that was more referring to the metering diaphragm. The VP may still be in good working order, but if it has be exposed to less than 5psi the metering diaphragm will crack. If the metering diaphragm cracks you will quite possibly see issues with hot starts when I higher pressure pump is put in the place of the stock pump. Even just a replacement stock pump can generate enough pressure to result in hard starts when hot if the diaphragm has been damaged.
Yeah, that all Vp's will die applies more to stock pumps, but in all honesty, most after market ones are going to fail too, but many improvements are made to them that will help in making them last longer.Cumminsdude2001 said:Yeah the 5 psi thing only applies the the diaphragm. I put my FASS pump on and it was too late on saving my VP44. i was getting the hard starts when hot. I just recently put the special x VP 44 fromblue chipt in and its much better now. As far as all VP 44's will fail, well im sure some sooner than others. Blue Chip said that their pumps had all the upgraded electronics and internals so the pump would last a lot longer and not have any issues with heat. All factory Bosch upgraded parts. Ofcourse if you have low fuel pressure you will damage the pump again, but as far as the electronics and other internals go, a pump from bluchip has all the upgrades. They call it the FedEx upgrades.
sstockton said:Yeah, that all Vp's will die applies more to stock pumps, but in all honesty, most after market ones are going to fail too, but many improvements are made to them that will help in making them last longer.
That's awfully high number for MPG... Is this off the overhead computer or hand calculated???triker888 said:He gets 25/28 mpg and I get 22/23. We both run our own Biodiesel.