Tate,

I have only run a box on this truck once. A quad XZT+, no wire tap, no nothing. Other than that, just a whole lot of stock parts... for something. And a boost fooler.

I got rid of the quad box, because I could not control the surging/jerking/shuddering. Tried everything that they suggested, and promptly gave up. Back to that one about quitters never win, and winners never quit. But if you never win, and never quit.. you're a moron.

I can be a moron quite nicely, without fighting a losing battle just to prove it.

I run only a low pressure fuel gauge in my truck right now, that is all I have ever run. I do have a set of pyro/boost/FP for the pillar here, but I don't really like pilar mounts, and I've been too lazy to track down a dash pod. So I live with fuel pressure only. Remember, this thing is a work truck.

I do attribute my success with the VP pumps to our stellar fuel up here. It seems to be marginally drier than my sense of humour. Also, only one of my VP pumps has been an electronic failure, the rest have been mechanical in nature.

For the record, of the 100+ VP pumps I have swapped, less than 10% have been electronic failures. That's just food for thought.

As far as high EGT's = Meltdown. Yeah sure, under sustained and extreme conditions, you will have a meltdown. And so might your engine. But I cannot recall seeing a toasted piston in any engine that has been run at high egt's. Lots of turbos, some head gaskets, lost valves. but no pistons so far. Included is a 3406E 550 CAT engine, that the owner treated exceptionally well. His take was " Lug it til you have to shift, if you can see the top of the hill, just let it woof". He never burned a piston. and I am sure that thing got plenty hot.

Who knows.

 

you can add my 1st 24v to that list..... I had a 1700* isspro guage in it. there was LOTS of times it would take 8-10 seconds for the needle to come off the pin after a WOT run. that was all before twins went on, but still no hole damage. I did a HG with orings theres well after all that. everything looked ace still inside.

 

Luke, Try that with a common rail? Ya these VP trucks are have tuff engines. I agree, you really only need a fuel pressure gauge, if the truck is stock. If you pulling something heavy up a steep hill, and you working the engine hard, down into 1st and 2nd gear, you might have to worry. Most of use don't do that.

I have a few melted down engines in my garage. None of them VP engines (bunch of broken valves, no melted pistons), just a pile of melted 12v's, 5.9CR and 6.7CR

Pind, keep the posts coming buddy, its good to get another take on things. I always seem to miss the stuff that you have figured out.

 

The only way to stop a CR from melting is to put a P-Pump on it...

 

I been wondering if cummins use the same injector spray angle as the VP engines? I think common rails are designed nuke.

I don't think that the 12v gearbox will fit onto a CR block to easy. The CR block looks fairly similar to the 6.7L block. Bunch of stuff is different. I have a 02 24vp sitting beside 03 CR engine, both are wrecks Hopefully I can build one decent engine from the two engine parts, plus a bunch of cash.

 

Got my 2001 with about 215,000kms on it, tapped the wire almost immediately, then added a Holly Blue pushing into the factory lift pump.

Now at 310,000kms and just pulled 17K back from Utah. The same VP and holly blue still hanging in there. No idea how much is on that VP now as it was in the truck when I got it but its got almost 100,000kms on it with a tapped wire.

 

THE CRD ENGINE ARE GOOD ENGINES WITH A 2 MICRON FILTER AND CHANGING THE INJECTORS EVERY 120 000KM ... THE DAYS OF GETTING 500 000 KM ON A CUMMINS WITHOUT WORKING ON THEM IS LONG GONE

 

I must have horseshoes you know where. Sitting in my truck as I type this with 450936 kms on it. This is my 04.5. Still original everything on engine except my #4 injector line and the stock lift pump that went out under warranty and the dealer put in the in tank gimmick. (At least 300,000 kms ago). Truck still runs smooth and awesome. No smoke on start-up. Been using the Baldwin pf 7797 or whatever fuel filter that I change not very often. No gauges for the last 4 years, because my edge juice with attitude had a bad attitude and I yanked it out! Just running the smarty JR for the last 4 years. With my work truck, I think it must like being ignored, and me not snooping around checking in on it's temperatures and pressures. Might bite me in the fanny one day! But then the dealer has lots of 2011's in stock.......