I am building a 2012 gmc Sierra with the 6.2. It is getting built currently. I am planning to buy a Speed engineering twin turbo kit (any reviews?) not sure what the max boost is for those twins are. Running dual fuel pumps and 100lb/hr injectors and a custom grind cam.
I want to add a water meth kit as well and unsure on the kit to buy. I was looking at the snow stage 2.5kit but unsure if I’ll need bigger nozzles for the kit or the ones that come with the kit will be enough.

 

Max boost is based on your internals imo

 

I have fully forged internals rated for 1500hp.
I’m probably only going to run 20-25psi

 

Aluminum 6.2?
I like the Huron speed turbo kits.

Which dual pumps? What fuel?


"fully forged internals" doesnt really mean much? Are they Eagle SIR rods or Wiesco boostline rods?

Only issue with a Alum 6.2 is the sleeves are pretty thin and they dont like to hold a whole lot of power in a heavy truck.


But for W/M kit look at https://www.alkycontrol.com/ This is the only kits ive never had a issue with.