LB7: lbz cp3 in lb7

02dirty

New member
Jun 21, 2009
186
0
0
salt lake city utah
i have been thru 2 sets of injectors 1 lift pump and could not hold rail pressure of 23000 .well i did a lbz cp3 in my lb7 and now i hold 23000 just fine truck feels amazing and it runs 100 times having some trans issues but i'm sure we will work them out,, thanks to zac fuller for the tunning he does amazing things with that lap top ...thanks again zac :thumb:
 

paoutdoorsman

Duramax Fan!
Mar 27, 2009
159
0
0
South Central PA
i have been thru 2 sets of injectors 1 lift pump and could not hold rail pressure of 23000 .well i did a lbz cp3 in my lb7 and now i hold 23000 just fine truck feels amazing and it runs 100 times having some trans issues but i'm sure we will work them out,, thanks to zac fuller for the tunning he does amazing things with that lap top ...thanks again zac :thumb:

What happens on the 101'st time?
 

zfuller123

StarLite Diesel
Sep 2, 2006
429
0
16
Utah
www.starlitediesel.com
Was this a bolt out bolt in swap?

The physical part of the swap was a straight swap as i understand it from Josh...

The tuning part was where my portion came in, and really, it wasnt that bad other than the tuning we had been trying did SO many things tyring to sort out if it was an injector or CP3 problem over the months, i really had to dial some things back. The biggest modifications were to the Regulator Current.... but runs like a champ, holds 25k rail now....

Only thing is the shifting.... one gear that i just can't figure out where the issue is... but we're on the road to solving it... It's definitely defueling pretty good for the shifts (according to logs, not butt-meter), and since the truck hasnt been able to have all the power it's got now (rail was previosuly sucking down to 17-18k, and pulling pulse too trying to compensate)... so the trans definitely has some learning to.

Overall, really happy that his problem has finally been figured out and fixed!

-->Zach