Fuel Pump PSI - Page 2

Uncle Bubba · #16 12-07-2007, 05:53 PM

You must not have been running these pressures for very long now. Even 25 is still to high. Your gonna end up blowin the internal overflow or the diaphram on the pump if nothin else happens first. 21psi is the max that even Bosch says the pumps will tolerate on a regular basis, the rebuilder I taked to reccomends 18psi max even for competion trucks that they sponser. -

Uncle Bubba · #17 12-07-2007, 05:55 PM

Originally Posted by DangerousDuramax

Did you get a MITUSA?

We tried for the MITUSA, that's what I wanted but didn't have any luck gettin a hold of the vendor. He is a busy man. -

**DangerousDuramax** · #18 12-07-2007, 05:56 PM

If you want one I can get it for ya if you want to pay the price. I've have quick and easy access to Opie through Nathan Wright. -

Fishin2Deep4U · #19 12-07-2007, 05:57 PM

Originally Posted by Uncle Bubba

You must not have been running these pressures for very long now. Even 25 is still to high. Your gonna end up blowin the internal overflow or the diaphram on the pump if nothin else happens first. 21psi is the max that even Bosch says the pumps will tolerate on a regular basis, the rebuilder I taked to reccomends 18psi max even for competion trucks that they sponser.

I am not sure if it will last. It's still doing fine with over 60K on the clock, approaching 70K on the next oil change.

I'll keep running it until it fails. This VP has already lasted longer than the factory unit running "spec'd" pressures.

Dave -

Uncle Bubba · #20 12-07-2007, 06:00 PM

MikeL was who we were trying to go through. As I understood it he is the only vendor for them. At this point I would say that this belt drive pump system is gonna be the only way to go once it catches on. This thing rocks. Hopefully when the next guy is ready to give it a shot you can help them out. I'm already up and runnin on it myself. -

**DangerousDuramax** · #21 12-07-2007, 06:03 PM

Which one are you using? -

Uncle Bubba · #22 12-07-2007, 06:04 PM

Originally Posted by Fishin2Deep4U

I am not sure if it will last. It's still doing fine with over 60K on the clock, approaching 70K on the next oil change.

I'll keep running it until it fails. This VP has already lasted longer than the factory unit running "spec'd" pressures.

Dave

You'll never hear me tell anybody they are wrong for tryin somethin different. That's how we learn about these things. Just throwin the warnings out there to make sure you are informed about what your doing. It's hard to know from a few threads if somebody is a newby makin un-informed decisions or if your somebody that knows what's goin on and your just takin a different route. If you had been the newby I'd feel like we failed ya if we hadn't given the warnings, but since your not drive on and keep us up on any changes. -

Fishin2Deep4U · #23 12-07-2007, 06:07 PM

Originally Posted by Uncle Bubba

You'll never hear me tell anybody they are wrong for tryin somethin different. That's how we learn about these things. Just throwin the warnings out there to make sure you are informed about what your doing. It's hard to know from a few threads if somebody is a newby makin un-informed decisions or if your somebody that knows what's goin on and your just takin a different route. If you had been the newby I'd feel like we failed ya if we hadn't given the warnings, but since your not drive on and keep us up on any changes.

It's all good. I don't pretend to have any of the answers. And what works for me may not for others. Just the way it goes I guess.

Dave -

Uncle Bubba · #24 12-07-2007, 06:07 PM

Originally Posted by DangerousDuramax

Which one are you using?

I ended up with the look-a-like from Glacier Diesel. I needed something in a hurry cause my old electric pump was dead and i can't be without the truck. -

**DangerousDuramax** · #25 12-07-2007, 06:08 PM

I know guys that are running close to 100psi at WOT in the DMax and havent blown up a CP3 in over two years of racing, BUT...that doesnt mean there isnt some damage taking place that will show its ugly head later on. They are running modded CP3 though.
That 42psi idle pressure is just nuts. My LLY didnt like anything above 13psi or it would spit and sputter like a $2 whore on Bourbon St. -

Uncle Bubba · #26 12-07-2007, 06:11 PM

Originally Posted by DangerousDuramax

I know guys that are running close to 100psi at WOT in the DMax and havent blown up a CP3 in over two years of racing, BUT...that doesnt mean there isnt some damage taking place that will show its ugly head later on. They are running modded CP3 though.
That 42psi idle pressure is just nuts. My LLY didnt like anything above 13psi or it would spit and sputter like a $2 whore on Bourbon St.

In a common rail/CP3 systems of the 3rd Gen Dodge trucks that would be closer to normal pressure but we don't generally run near this in the VP44 trucks. -

**DangerousDuramax** · #27 12-07-2007, 06:15 PM

Oh my mistake, I didnt realize you werent running a CR. -

**cashwheel** · #28 12-07-2007, 06:26 PM

Yeah, we know, some of us are still stuck in the dark age's................

-

Fishin2Deep4U · #29 12-07-2007, 06:29 PM

Originally Posted by cashwheel

Yeah, we know, some of us are still stuck in the dark age's................

-

Uncle Bubba · #30 12-07-2007, 09:15 PM

Happilly stuck in the dark ages, thank you. -

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