VP pump on CR engine

silvercloud

silvercloud

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Joined
Feb 7, 2008
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Hi all-I have a question for those that are smarter than me. I have an '01 2500 that is basically retired now to a life of trailer pulling (34' 5th wheel holiday trailer and a 37' tridem tilt deck trailer) and a backup truck for work. I've decided to mod it a little more so I can pull harder/cooler. One of the things on my wish list was an '06 cylinder head for the improved airflow. I stumbled across a complete '06 engine and the gears in my head started turning.... If I swap the gearcase and cam gear along with the ECM and harness off the '01 engine, and get crossover tubes to use the VP lines off the '01, will it run? It's my understanding from browsing through here that the '01/'02 engines use the cam sensor in place of the crank sensor on the earlier ones-so I shouldn't have to monkey with a crank tone ring?

Thanks in advance.
Jason
 
Is there a reason not to put the entire engine and CR fuel system in the 01? Instead of screwing with swapping the fuel system, just have a CR powered 01.
 
Don't waste your time... A lightly modded VP truck wont see any measurable benefits from a better head.... especially with all that would be involved in getting a CR head to work
 
I don't really have any desire to deal with the injector issues that seem to bite the CR trucks-or the wiring required to retrofit a CR engine in place of the VP. I made over 400000 kilometres on the original VP with no issues (thanks to a fuel pressure gauge), and besides, who could ever get tired of hearing that injection clatter? :hehe: Truck will be getting some more fuel and air upgrades past what it has now. Figured the head would be the finishing touch. But the extra cooling jets on the CR block interest me as well.

Anybody know what the spray pattern difference is between the 24 valve VP and the '06? I guess this may be a stumbling point?

Jason
 
At the risk of sounding like a simpleton, as much as I can. The way the truck is set up now (Mach 1.6's, Smarty/DragCOMP and a PDR SuperHX40 (yeah, I know, dinosaur tech) I can't touch the COMP at all for EGT reasons. I want to add to the airflow capabilites (turbo(s), camshaft, cylinder head, aftercooler) and then add fuel until the EGTs are at maximum continuous. I'm getting too old to fart around light-to-light, besides which, I never could shift that fast anyways.

I'm waiting for Fleece to come out with their Holset VGT controller so I can try a 6.7 turbo. I have the Spearco aftercooler sitting in a box in the shed waiting to accumulate the rest of the parts I need. I'm pretty sure that the 1.6s will be big enough by the time I start leaning on the rest of the electronics. The only reason I started kicking around the CR short block idea was stumbling across this engine-then I got thinking about some of the other benefits (the block stiffener, the extra cooling jets etc.) and wondering out loud. Looks like the injector spray angle is the stumbling block now though-from what I can find poking around here, VP is 153' , 03-04.5 is 143', 04.5-07 is 124' and 6.7 is 146'. Not sure-you could maybe get away with 10 degree difference of the earlier CR motor, but by my way of thinking I'm going to be way outside the piston bowl of the 325 hp motors, which is probably not such a good thing. Back to the drawing board I guess. Maybe I'll buy this motor anyways to add to my collection.

Jason
 
Really? I had asked Brayden to add me to a notification list when it was released for public consumption. Guess I better surf over to their site and see about getting one.

I thought about modding the stock head-but I see where the '06 and up CR heads are better flowing on the intake side, so I thought I'd start with one of them first.

Jason
 
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silvercloud said:
Really? I had asked Brayden to add me to a notification list when it was released for public consumption. Guess I better surf over to their site and see about getting one.

I thought about modding the stock head-but I see where the '06 and up CR heads are better flowing on the intake side, so I thought I'd start with one of them first.

Jason
Click to expand...

You can't swap timing gear housings between a CR and VP block.

If the truck can't be down for long or you don't feel comfortable porting a cylinder head, then I would look at swapping in a CR head. There definitely is less material in the bowls on those heads.
 
So the gear housing won't swap eh? I assume the bolt pattern is different? That seals that then. Figured someone on here would know the answer-thanks for the knowledge. I'll carry on with my original plan-saves me a bunch of work swapping the motor again.

Jason
 
silvercloud said:
So the gear housing won't swap eh? I assume the bolt pattern is different? That seals that then. Figured someone on here would know the answer-thanks for the knowledge. I'll carry on with my original plan-saves me a bunch of work swapping the motor again.

Jason
Click to expand...

Yeah its a different bolt pattern. We have stared at it for awhile, and the only way to go about it is to have a custom cover made.
 
That's a bummer....I wonder what Cummins' rationale was for that? Doesn't really matter I guess. Thanks again for the info.
 
A CR head will work on a 98 to 02 24v motor with a few mods if you wanted to go the route...




Timbeaux38 said:
Don't waste your time... A lightly modded VP truck wont see any measurable benefits from a better head.... especially with all that would be involved in getting a CR head to work
Click to expand...
 
WhiteNoise9924v said:
A CR head will work on a 98 to 02 24v motor with a few mods if you wanted to go the route...
Click to expand...

wow.......you must be the first one ever to do that........please tell us all about it? I have never heard of a CR head on a 24v, go back to cummins forum man....... your a douche-nugget
 
You can put any combination of B series engine parts together to build even your wildest dreams, I didn't say it would be easy!
 
Mudn_1 said:
wow.......you must be the first one ever to do that........please tell us all about it? I have never heard of a CR head on a 24v, go back to cummins forum man....... your a douche-nugget
Click to expand...

All i was trying to say is that i no a guy who did it and its not that bad of a job....
 
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