I can't find anyone that sells a twin CP3 kit. I have a decent size of nozzle for my injectors? I have a few duramax LLY CP's laying around.

 

ats has them bd also

 

only goes up to 09

 

what did they do different on the 2010

 

that I don't know yet. upper radiator hose is different if I remember. will have to call and find out

 

I see that ATS has a kit? I thought I found a kit that was a cheaper more DIY from Wicked diesel? What size of nozzle you guys finding needs larger CP's or dual's?

 

mike i can not help there. i put a dual cp3 on because ats said i could get better mpg. the theory was the pressure drops from point of start of injection to finish. it only lightened my pocket book. but we had all kind of gauges hooked up to the test truck. the max mpg was achieved with the 50 hp injectors. while we had the 100 hp's in and before we added the twin cp3's and the smarty jr on performance and the 62-65-13 turbo we decided to see what would happen before we pulled the 100's the single cp3 did not have a problem with pressure. this would equate to about 525 flywheel hp. others on here play and will give better idea of where it falls on it's face.

 

I have a hard time seeing how twin CP3's could give you better fuel mileage, I can see them giving you worse fuel mileage. I run H&S blackmaxx, my truck dynoed at 420rwhp, stock, on the big power setting. That turbo you selected is fairly small, I was going to run a S366 or some twins configuration. Heard guys needing to run a rail shim to feed the 100HP sized sticks, any bigger you need more available CP volumes. I just have 100HP sized nozzles, been waiting for someone to build a decent RFE68 prior to doing my power upgrades.

I can see someone easily getting 700-800rwhp out a set of 100HP nozzles on one of these 6.7L, of course with the right modifications.

 

Ats theory was to keep a constant pressure through out the delivery giving better atomization without increasing peak pressure. digital scales measuring fuel on a dyno loaded to tow hp showed no increase or decrease. just wasted $3,200