Originally Posted by ZO6Ted

12s? Should be 11's!

Originally Posted by iregret

Sweet. Thank you.

I didn't exactly hand pick all this stuff. It's a hodgepodge of second hand parts from here and there.

Is the turbo too far off? It's brand new, I could put it up for sale and hunt for another deal. Then again, fast spool times are probably pretty great, but how much am I sacrificing up top?

Maybe it'll be good for a daily driver?

Is the JGS waste gate bad? Again, it's another one of the things I bought off of here.

Thanks so much for your experience!

Originally Posted by Ferocity02

Triple 12 is a great turbo cam. I would have gotten a true triple 12 but got the 114 LSA instead for smog. PM stock48 if you are looking into getting a triple 12.

Originally Posted by Atomic

Take any result that Jarret (Stock48) has with a grain of salt, he is a known wizard/magician/voodoo master.

With that said, turbos dont care about the cam (at this level anyway). Pick a cam that will give you the driveability and sound you want and let the turbo do its job

Originally Posted by Preston99WS6

For the cost you cant beat it, also since you are running a 6.0 a 4L80 with 3000 stall , and AWD and the truck is heavy its a no brainer. a S475 with the 1.32 A/R 96mm turbine will spool real quick, and can be had for under 700 shipped there is also plenty of space in the engine compartment to fit it with ease. Get a good electronic boost controller and turn it down to 6-7 psi for the wife and crank it up to your liking when you fill the need. Also as stated above get the 80 lb injectors are not much more and will support plenty of extra power later down the road when you get bored with 600 whp.

Also with AWD and the 4L80 you will have to have that T76 near full tilt to make your goal of 600whp. That will lead to back pressure well in excess of 3:1 on a 6.0. Foose04s posted results from his 4.8L when he had basically a identical turbo to the one you listed the results was a 3:1 ratio this was with a .96 A/R housing yours will be worse. a 6.0 will be closer to 4:1 since it is literally has to move 25 percent more exhaust another words if you run 15 psi of boost your exhaust pressure will be 45psi at least probably closer to 60psi this traps in heat in the cylinders and also leads to higher pressure in the cylinders when the intake valve opens which means you draw in less cooler air/fuel and its not as efficient at making power, not to mention closer to detonation due to higher temperatures. I would wager that the S475 will be at 600WHP around 15psi boost with the parasitic losses of your drive train it will have lower back pressure and lower IAT's as the compressor will be operating close to its most efficient area, back pressure will be between 1.1-1.3:1. Which translates into more fresh cool air/fuel and more wiggle room for timing and low Octane/ which makes the whole build safer and last longer, also gives you the ability to run a cam with some overlap if you want a choppy idle.

Your cam will work good and easily get you to your power goal that being said a cam from Martin at Tick will work better. You definitely need better springs. The 317s will work great for what you are trying to do. If your porting them your self then go for it. If your going to pay someone to port them take that money and get a cam from Tick instead, or save it and run a few more pounds boost. If have seen several untouched casting 317 and 243s rip off numbers in the 900-1XXXwhp area with a fresh valve job.