Engine/Transmission (1998.5 - 2002) Holly blue lift pump?

[Texas Diesel]

Since I'm the replace-the-LP again point, the parts guy suggested a Holly blue lift pump instead of the Carter.



Any comments?

 

[BTowler]

Don't waste your money, a friend of mine who tried the Holley Blue only got marginally better life out of them than the stock lift pump (two in less than a year). The blue is not a "lift pump", it is a gasser fuel pump and was never intended to be a diesel lift pump. I would suggest the Glacier GFS392, or if you prefer, a FASS or Air Dog.

 

[IC Smoke]

Im running one, 2 years no problems! somewhat loud when you key on but once the truck is running you cant hear it. Works well and I am around 20 psi and 16 WOT!



I have it set up to push thru the stock LP



Ian

 

[Cummins724]

Good pumps... . Ran one for a year & no problems. My brother installed the pump I took off my truck & gets 22psi idle, 18wot in conjunction with the stocker.

 

[Texas Diesel]

Ok, a couple of questions,



Why do you run the Holly AND the OEM LP both?





And, where can I read about the Glacier GFS392. I did a goolle search and found nothing.



Tnx

 

[DavidC]

http://www.glacierdieselpower.com/



Dave

 

[Texas Diesel]

looks good, thanks for the link.

 

[Cummins724]

Ok, a couple of questions,



Why do you run the Holly AND the OEM LP both?





And, where can I read about the Glacier GFS392. I did a goolle search and found nothing.



Tnx

It is for the high fuel pressure & reliability. The stock pump fails because it can't pull the fuel from the tank because it has been over worked. This is why every company says to relocate it near the tank & fass etc. tell you to do the same. Running the holley by the tank feeding fuel to the stocker takes away that extra strain of pulling fuel all the way from the tank. This makes for better, more reliable flow. The holley pump can be used with or without the stocker & if ran alone could supply 14-16 psi @ idle. The blue pumps are easy to get too. If one ever fails... Go to Advance Auto, Auto Zone & you can find them on the shelves for $100. How do you get a Glacier or Fass? Truck downtime is important. I keep a Holley pump in my toolbox.

 

[Texas Diesel]

Do you happen to have the Holly Blue AutoZone part number?



My AZ quoted me $175 and 3 days for the Carter LP.



$100 wouldnt be bad if I had the part number.



The counter guys here arent much help



My last two Carter LP's have failed even though they were mounted by the tank w/ 1/2" lines

 

[DMannon]

Google Walbro fuel pumps... they're available all over. Richard at Glacier sells them as cheap as anyone. When I ordered mine, he called me that afternoon to say he'd just shipped it. I received it two days later.



Walbro, Holley, Fass, AirDog... they're all good. The main thing is if they give you good enough pressure AND volume.

 

[redram]

Texas Diesel,

You can get the Holley Blue mail order through Summit Racing

http://store.summitracing.com/egnse...holley+fuel+pump&searchinresults=false&N=+115



Blue is 125... . with a fuel psi regulator included.

 

[Cummins724]

Do you happen to have the Holly Blue AutoZone part number?



My AZ quoted me $175 and 3 days for the Carter LP.



$100 wouldnt be bad if I had the part number.



The counter guys here arent much help



My last two Carter LP's have failed even though they were mounted by the tank w/ 1/2" lines

I don't have it, but try Advance Auto... usually they are on the shelf behind the counter in plain view. If not... they can get it next day.

 

[DMannon]

You can get the Holley Blue mail order through Summit Racing

http://store.summitracing.com/egnse...holley+fuel+pump&searchinresults=false&N=+115

Checked that link, looks like the Holley Blue makes 14 psi, at best, 110 gph free flow. I notice that the Holley Black puts out more volume (140 gph) than the Blue, but same max pressure. Carters are supposed to supply 4-18 psi, with 100 gph free flow.



The Walbro in the Glacier setup does 85 gph free flow, with a max pressure of 140+ psi. The nice thing about the Glacier is that the pressure is adjustable by adding or removing shims in the bypass valve. It comes stock set at 20 psi; I removed a shim to put it at 15 average.



Volume decreases as pumped pressure increases. Since this is a fuel cooled and lubricated pump, does anyone know the adequate flow requirements? When I replaced my VP, Chip told me that it required between 10-15 psi to keep from damaging the internal diaphragm. He said 20 was probably a reasonable upper limit, 5 the lower. I forgot to ask about volume. I recall there was a rather heated thread a while back about volume versus pressure.



I'm not sure I'd want the Carter in the loop, so to speak. More complexity doesn't necessarily translate to more reliability. Here's a thread with pics where NoSeeUm did a two pump setup with the stock Carter: https://www.turbodieselregister.com/forums/showthread.php?t=164221&page=2&pp=15



If you're going to the expense and work of putting a big line kit in, and buying a second pump, remove the Carter and get fittings for it so you can use it as a replacement in case of emergency... or buy two Walbros, Holleys, whatever. If you have to work on the lift pump by the side of the road, the last place you want it is in its stock position...



Boy, this got long. Couple of beers, you can't shut me up...

 

[BTowler]

Unless you are unfortunate enough to get a bad pump the Walbro should far outlast anything on the market. This is a gerotor pump which is running at 15% rated capacity, and dealing with pumps for a living I can tell you when you derate a pump that much the life span goes up considerably, and gerotor pumps are already very durable and long lasting.

 

[Cummins724]

I'm sure any of these pumps mentioned are far better than the stocker alone. I like the idea of putting a pump under the truck with a bypass hose around each pump with a shutoff valve myself. If one pump goes bad... just flip the switch & keep on truckin. A switch wouldn't even be needed with a system like this, but would it work properly without a means of directing the fuel?... . I'd say yes. This way there is no lying on the road or bending over your hood in the snow. I listened to guys saying "get a fass" & found one cheap, put it on & was surprised to see that my brother with a holley & stocker is getting better pressure than me @ wot. If my pump goes bad... I gotta order one & wait, but he just has to run to advance auto & get one. If my fass fails... I'm stuck, but he just sees a fuel pressure drop & drives home. I'd do the 2 pumps... If I had to do it over again.