CR pistons in 24v

Cozze44

Cozze44

Junkman
Joined
Feb 9, 2012
Messages
1,315
Read some posts about this but not much info out there. Wondering if anyone has input as far as inj goes. I also read you can advanced the timing quite a bit with this combo. Any one have experience with this?
 
This'll help you a bit.
Below are the stock spray angles of the bowls in the CR and 24 valve 5.9 DODGE Cummins engines.

1998-2002 24 valve= 153 degrees.
2003 and EARLY 2004= 143 degrees.
2005-2007 5.9= 124 degrees.

By the specs above, not sure how much timing you can get, though the 2003-early '04 pistons do have a sort of "funnel" into the bowls, which the rest don't have.

Mark.
 
Last edited:
Mark Nixon said:
This'll help you a bit.
Below are the stock spray angles of the bowls in the CR and 24 valve 5.9 DODGE Cummins engines.

1998-2002 24 valve= 153 degrees.
2003 and EARLY 2004= 143 degrees.
2005-2007 5.9= 124 degrees.

By the specs above, not sure how much timing you can get, though the 2003-early '04 pistons do have a sort of "funnel" into the bowls, which the rest don't have.

Mark.
Click to expand...

Thanks Mark, I have 06 pistons and to be honest I'm not to knowledgeable on spray angles and how it will affect the performance. Im wonderin if ill need different nozzles.
 
Running a CR piston with 24v injector tips would cause a hot spot in the pistons and will end up burning holes through the pistons.
 
SKYNYRD said:
Running a CR piston with 24v injector tips would cause a hot spot in the pistons and will end up burning holes through the pistons.
Click to expand...

Is there a mfr that makes tips that could be used? Are cr types compatible with my inj?
 
Talk to weston I'm sure he could build a set of 24v tips at the angle needed for CR pistons.
 
No, oem CR nozzles won't fit a VP injector, BTDT.

I was checking into VP nozzles for a mechanical 6.7 build (long story) and was told there were OEM Bosch 148 degree injector nozzles available for a VP and that is all, without a custom made nozzle.

I'm sure there's places that'll make you what you want, if you have Cubic $$$ to give them. ;)

Mark.
 
Mark Nixon said:
No, oem CR nozzles won't fit a VP injector, BTDT.

I was checking into VP nozzles for a mechanical 6.7 build (long story) and was told there were OEM Bosch 148 degree injector nozzles available for a VP and that is all, without a custom made nozzle.

I'm sure there's places that'll make you what you want, if you have Cubic $$$ to give them. ;)

Mark.
Click to expand...

Oh boy wonder what this is gonna cost...
 
Thanks for your help guys. This 06 short block is proving to be a project to use in a VP truck.
 
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