Tuned 8 spd guys come on in!
04-22-2018, 03:32 PM
#1
Tuned 8 spd guys come on in!
Had an opportunity to grab my buddies 2017 6.2/ 8 spd crew that’s got a decent pre runner setup on it and jumped on it. The engine has been tuned but he wasn’t quite about the go fast life enough to send the TCM out to get unlocked. I’m seriously considering doing it. It’s on 35s but has been regeared to 4.10 and the truck has no problem spinning them through 2nd off idle.
Those of you that have tuned 8 spds, is it really worth all the hassle? It honestly doesn’t seem to bad at the moment. Let me know what y’all think
and who doesn’t like showing off their new truck?? lol
04-23-2018, 10:24 AM
#2
Teching In
Join Date: Oct 2002
Location: houston,tx.
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My 2016 denali with 5.3 and 8 speed is tuned by Pat g. at time of tune, I only had e85 and airbox mod with k&n drop in filter. My son says most of improvement was in trans. Have since added headers and 6.2 intake with mit tube.
04-25-2018, 10:45 PM
#3
Staging Lane
I'm pretty sure you can save some money and tune the 2017 8-speed by buying a 2015-2016 T87 TCM, swapping that in place of your T87A TCM, and then tuning the T87 TCM. No need to send in your 2017 T87 TCM.
05-23-2018, 02:00 PM
#7
Staging Lane
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Choda (05-23-2018)
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05-23-2018, 06:59 PM
#9
I don't see it working. The TCM operating system has to match the vehicle and the program in the the TCM needs to be a match with the computer itself. An older TCM is likely not to accept the same calibration that is required to work with a newer controller.
