L92 - going turbo need some input
L92 - going turbo need some input Funny, its actually a 2000 Transam, but I'm posting here because the car currently has a 6.2 out of an older Denali Im assuming.
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? 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.
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? 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.
TECH Enthusiast
Joined: Dec 2017
Posts: 676
Likes: 72
Probably get more help in the forced induction section for most of your questions. My advice. Yes drop compression to 10.5 to 1. 7875 is going to spool good even with the t56. A bigger turbo isnt worth it for your goals and will hurt spool up with your manual trans. Id get a different set of heads that havent been milled so much to help the head gasket live. Be prepared boost is addictive.
On The Tree
Joined: Jun 2019
Posts: 184
Likes: 66
From: HTown, Texas
Funny, its actually a 2000 Transam, but I'm posting here because the car currently has a 6.2 out of an older Denali Im assuming.
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? 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.
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? 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.
#2 What fuel? You would probably be ok with E85, but I don't think it would be a good idea on pump gas.
#3 The return style system with an adjustable FPR really isn't mandatory, but it's almost retarded not to do it. I run a regulator off the service port at the front of the rail and return it to the stock return line at the back of the car.
