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stodg73
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Silverdodge

Silverdodge

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U want ultimate power p pump u want ultimate reliability p pump with stock ish settings but it's a lot of time And money to make everything work like it (should) and I mean everything so vp is the way to go other then that unless u like power go hot rod hovp from everything I've seen is pointless

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Silverdodge

Silverdodge

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Just now, Silverdodge said:

U want ultimate power p pump u want ultimate reliability p pump with stock ish settings but it's a lot of time And money to make everything work like it (should) and I mean everything so vp is the way to go other then that unless u like power go hot rod (I personally don't like industrial injection but that's my personal opinion they think there **** don't stink) hovp everything I've seen is pointless

 

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Mopar1973Man

Mopar1973Man

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Personally if its a daily driver just replace with a stock HO pump. 

 

If you are going to the race track then I would go p-pump. Even then there is guys that past the 1,000 HP barrier with VP44 pumps. Still have way better timing control with VP44 than a p-pump. Even though the p-pump can fuel more. The VP44 has way better daily characteristics and can be fuel managed way better now with the Quadzilla compared to Edge Products.

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trreed

trreed

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I’ve had HO and SO pumps back to back. Definitely lost a little bit of low end feel with the SO pump. 

 

P7100 can be swapped in for anywhere from $1500 to $5000, and requires cam removal. I’ve seen p24 valves that run very well with p pumps, and some that run like garbage. Depends on how well you set it up. 

 

Hot rod VP pumps are known for shorter service life over a SO pump, and a SO pump will make the same amount of maximum power (~750)

 

My vote is to stay with the HO VP. That’s what you’re used to and the truck won’t feel any different. 

 

Finally, I’m also in Colorado and willing to offer advice/help if wanted

Edited by trreed
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Mopar1973Man

Mopar1973Man

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Only thing to add to @trreed post is all the guys I've ever talked to after doing a P-pump swap typically take a hit to MPG's. This why I don't suggest it for daily driver setup. Again all depends on how you set it up and how much time you willing to tinker with timing and fueling setups. Normally the p-pump is for guys looking for big HP numbers.
 

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stodg73

stodg73

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Well, I am wanting extreme reliability, ease of maintenance, and don't want to have to mess with it ever again.  Due to going places that are far from help.

 

Not worried about MPG, as I have propane to help.  I want about 250 how and 500 ft/lb of torque, don't want to do the transmission yet, when. That comes, I am wanting a 13 speed...

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trreed

trreed

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Well my nv5600 is holding up to roughly 650 hp/1400 tq, and has been for a while now so I would argue the rear bushing being a weak point. 

 

Woth proper fuel pressure and maintenance, a VP can last for a quarter of a million miles. @Mopar1973Man and @dripley come to mind with high mileage VPs. A p7100 can leave you stranded just as easlily as a VP.  

 

As for not messing with it, a p pump swap will take hours of your time tinkering with it to get the timing and AFC set up, and if you use a stock gear, you run the risk of timing slipping because it’s not keyed

Edited by trreed
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Mopar1973Man

Mopar1973Man

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243k miles on my last VP44. 

 

@dripley is going to beat me on the VP44 lifespan.

 

8 hours ago, stodg73 said:

The stock numbers are 245/505, and the NV5600 is the weak spot with the rear bushing. 

 

...and they said the NV4500 had weak input shafts and 5th gear nut problems. Never had any issues with either. I proved them wrong when I broke the mainshaft in half at the 3rd/4th gear syncros with nothing more than Edge Comp and +50 HP injectors. I tend to take most of this transmission weakness as rumor now.

 

Image result for mopar1973man mainshaft

 

As for all the transmission fears I don't buy into them at all. 

 

Now I'm running +75 HP injectors and Quadzilla which is way more power than Edge Comp and +50 HP. 

Edited by Mopar1973Man
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Michaelsloft

Michaelsloft

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My original VP lasted 250,457 miles! Replaced with a SO about a year ago.

Truck died while driving at 45 mph rolling along in 5th gear......and was able to get started on the the third try to drive the remainder of the trip home for about 4-5 miles. Engine would only rev to 1100 RPM and was able to short shift up to third without lugging.  Thanks to a kind Town Marshall escort I was able to travel safely at 10-11 mph for the few miles to limp home!

So more accurately; the original VP 44 lasted 250,452 miles! Removed the pump at the 250,457 miles listed above.

 

Michael

Edited by Michaelsloft
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