[RLong6.7]

I got a 08 6.7 all mods in my sig...this is my 1st 6.7l I've had 3 other 5.9s...I'm not sure if I should go injectors/nozzles next/turbo upgrade/cp3 upgrade/ or head studs 1st? I would like to go nozzles but will the stock turbo or cp3 take it?

Thanks for any help, also I'm not new to the forum just forgot my password

 

[NWRQC]

Turbo upgrade then head studs then more fueling. The stock charger runs out of steam before the fuel system.

 

[kendrickDan]

^^^Agread. And efi or mini maxx custom tunes will always benifit you. If you are not planing on more than 700hp a s366 is half price what a s467 is and I love it. I cant hit more than 1360 egts on 1/4 mi run with daves tune he says should be 600hp. Got my s366 at Ducky fuel Inj for $500 and deff cheapest ive seen.

 

[Clint A]

ΔΔΔΔΔΔΔΔagree with most of what the other two said but do head studs before turbo or more fuel.a blown hg will set you back a bit for sure.

 

[Silver70]

Air before fuel. And if I was you, I would do the injectors and head studs at the same time. It's easier, fyi.

 

[nevadajones]

I did nozzles on injectors that had 80k miles on them and they've held up great. Im at 92k now.
when I started my build I did my fuel upgrades first because it was easier and cheaper parts. but I regreted it. I was constantly baby sitting my egts and I rolled coal every where, I had to really watch it so I didn't piss people off. I would definitely do head studs. I did my nozzles, rockers, springs and pushrods all at once. you don't have to, but beefing up your head is sure insurance. and head studs are a must.
when I finaly installed my compounds 62 phat shaft/s474, everything pulled together but it was stressful for awhile. I hit 55 psi at wide open throttle now but the volume of air moving is insane. air first though. long story short.:rof

 

[RLong6.7]

Thanks for guys...you think do in the 2nd gen manifold swap is the way to go or just change out charger? I'd really hate to lose my stock exhaust brake

 

[Longcummins]

The exhaust brake is the stock charger. Yes a 2nd gen manifold with a t-4 foot with a new charger would be the best route to go IMO.

 

[Longcummins]

Also I would do head studs as my first priority before you blow a head gasket and have to pull the head.

 

[3brorce]

I agree. Second gen t4 swap. 6.7 can spool a larger charger on stock fuel with ease.