Need advice - going turbo
Stock bottom end besides going .005 over with forged Wisecos. Will be putting in some forged rods
823 heads decked .030, stock LS3 intake with a 102MM TB
I'm currently planning on going with the ON3 or Huron speed A/C kit. I'm looking at turbo selection, and it seems I'm pretty limited if I want to keep AC and full exhaust.
#1 - Will a 7875 suffice with a 6.2, or should I see if I can shoehorn something bigger? Backpressure seems to be a concern on even smaller CI motors. It looks like there's a couple other larger options, but for a much heavier cost (PT88 for example)
#2 - Should I drop compression? Currently static is 11:1, I'm sure I can drop it down a bit with a thicker headgasket. Probably end up around 10.7:1. I plan on running a progressive meth kit with dual walbros in the rear.
#3 - For the fuel system, at these power levels is it mandatory I go to a true return setup, or can I modify stock fuel configuration to work? (Rail does not return, regulator in tank)
My goal is a healthy 700-800 to the tire with a nice curve. It's a T56 car, I would like to see the car go 9s.
Need some input from my techies, I know a bit but definitely no expert.







