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lt1z

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About lt1z

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  • Birthday 01/01/1970

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  1. The 21 is not taller. Its just a taller tire on the 20” wheel then the 18s.
  2. Yes I am aware of where the 1:1 gears are in A8/10 and do not use those but the guys running these in 3rd gear to avoid exceeding 100 mph are not getting the most accurate numbers. The stock driveshafts generally hold to 120 if the angle are not bad from lifting or lowering the wrong way. The guys who have trucks with a 112 limiter can get away with 4th on the A10
  3. You guys dynoing with stock tuning in the wrong gear to avoid the limiter are not getting the best data. Then again we are talking about CAI and exhaust here. I spend most of my day everyday on the dyno tuning cars/trucks so Im pretty well versed in this stuff. The L87 ( I own one) does not dyno or respond to mods any differently then an L86. There are just some slight variances in driveline loss between the A6, A8 and A10 offered over the years. I have not bothered with tuning mine yet due to the cost. I will be doing so when I install a 2650 in early 21.
  4. Factory 20s will get you a 112 limiter which will allow a stock 6.2 to complete the 1/4 mile
  5. I love my DC AT4. Prob wouldn’t have found one on a lot though. I ordered it optioned with what I wanted.
  6. Im not big on these but Banks offers the best product
  7. Ford and FCA will be forced to do similar things security wise
  8. If I was to change a Gen V 6.2 spring it would be to a PSI not a Comp.
  9. The problem is that on a 17+ GM the trans really needs tuning when adding an SC but its not something Whipple can easily offer canned. The 18-19 trucks with SC run much better with custom engine and trans tune using an unlocked TCM. The 19+ T1 trucks need an unlocked ECM to even get in and Whipple supplies a canned tune for that but trans tuning is not available at all for the Bosch T93 TCM. The canned tune is also write only on these newer trucks so if the truck is modified beyond the sc kit with supplied pulley you will have to start from scratch with a stock truck file generated from the server.
  10. There is a 3.73 available with the diesel off road package but don’t believe it is available in AT4 trim
  11. Its a pretty big muffler. You will not be able to recreate with a magnaflow even with the large 5x11 case.
  12. There is no flapper valve on the GMPE for 6.2. Its simply 3.5” back to the Y into 2.75” duals with one muffler
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