Tuning suggestions for 03/04 Pistons in a 07

[Jakects]

I originally wanted to go with QSB pistons but ran out of money, and ended up putting all 03/04 pistons into my 07. I Heard from different places this is recommended. I don't know if that is the case, but They are in there. Now I need to build a tune specific for this bowl design, and was hoping for any suggestions.

I'm new to the EFI world, but have worked on industrial & over the road cummins and cat engines for the last 5 yrs, familiar with insight and cat ET. Now leaving all I can about EFI Live.

Any help would be greatly appreciated, thanks!


The truck has 100hp+ II injectors (for this bowl design), 33% cp3, rv cam grind, 103 springs, arp head studs, stock turbo with Wicked Wheel2 and bae 70/64 10blade turban.

[2007 5.9]

Grab a 6.7 tune and look at the pilot, main and post timing....those are based on similar bowl design and will get you started.

[Jakects]

Good info, thanks man

[tylerltr450]

doesn't the 04 to 05 have a different injector spray.? I thought you could put 04 to 05 injectors in a 06, 07 because of the spray but you can't put 06, 07 injectors in a 04 ,05 because of the spray and bowl design.

[2007 5.9]

doesn't the 04 to 05 have a different injector spray.? I thought you could put 04 to 05 injectors in a 06, 07 because of the spray but you can't put 06, 07 injectors in a 04 ,05 because of the spray and bowl design.

OP stated that the injectors are correct for the bowl design.

[tylerltr450]

Opps my bad didnt see that.