holley blue pump.
05-20-2008, 06:47 AM
#18
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05-20-2008, 12:13 PM
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05-20-2008, 02:07 PM
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The good news is that the stock in-tank pumps have a good reputation for being dependable. The only reason people really change out the stockers is because they don't supply enough fuel on their own.
05-20-2008, 02:10 PM
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But from reading your signature, you are fueling sufficiently into the 12's with a stock lift pump in behind the Holley. That sounds pretty good, I'm just wondering about the roadworthiness of that set up. Specifically, is your theory that the stock pump will live longer if the Holley is up in front of it?
05-20-2008, 02:16 PM
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But from reading your signature, you are fueling sufficiently into the 12's with a stock lift pump in behind the Holley. That sounds pretty good, I'm just wondering about the roadworthiness of that set up. Specifically, is your theory that the stock pump will live longer if the Holley is up in front of it?
Considering you have higher mileage than me, I'm not sure I would go this route with your truck. You might be better off doing an whole aftermarket system that replaces the stock pump.
05-20-2008, 02:22 PM
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Yeah, I'm just weary of the pickup tube problems others have - that is the pickup tube not allowing you to use the whole tank b/c of sloshing, etc. I don't usually run my tank low, but I would like to have the option if I ever needed it. I also have a few Holley Blues laying around from past project cars. I like to have more fuel pressure on tap if need be.
05-20-2008, 03:05 PM
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I just pulled the trigger on a Holley. Seems like a great option for a 450 h.p. truck. I'd rather continue running factory pumps than deal with the 1/4 tank pressure issue.
05-20-2008, 03:45 PM
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I too run a holley blue on both the trucks in my sig. along with the cummins that ive owned before them. The only key to the holley lasting a long life IMO is to remove the inlet brass screen on the bottom of the pump, it is too fine for diesel fuel and starves the pumps rotor for proper lubracation. Ive tested and proved this theroy years ago, if you dont believe it put the suction in gas and time a givin' gallon amount: then do it in diesel and compair. But remove the screen and thier the same.. Plus with as dirty as diesel can be, the screen is just beggin to be stopped up then you have no fuel and super early pump failure! Many people used to blame the pumps for being turds, but i believe its always just been the stupid screens. Simply remove the 5 bolts on the bottom, set asside the plate, remove the screen, replace the plate and bolts, maybe 2 minutes of your time, if its on the truck just pinch off the rubber line with some vise grips during the repair. By the way this is just My opinion and what ive found to be facts and what has worked on my trucks and family and friends trucks for many years. Ive made over 500+ rwhp on the first truck in the sig. and lots more than that on the second one! Good Luck. Just thought i would share this info. ~Ryan~
