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2014 Sierra RCSB Z71 On3 Turbo

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Old 01-28-2018, 12:00 PM
  #131  
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Originally Posted by Jason Zajac
L86 not coming with the 6 spd transmission is no problem. Your engine control module and transmission control module are 2 separate pieces and your L83 controller will run the 6.2L no problem. All you need to do to start is copy & paste all the 6.2L parameters.

As far as the exhaust manifold threads either helicoil or timesert will both serve you well
Thanks for the feedback; I was hoping that was the case.

Any input on the possibility of this truck working with 8L90e? Any experience with that setup in a AWD Escalade setup? Is there any sort of tcase control(like "auto" in this Z71) or is it all truly seamless?

Edit: PS: could I run a 8L90 with my current tcase?

Thanks.

​​​​​

Last edited by Mercier; 01-28-2018 at 02:02 PM.
Old 01-28-2018, 12:19 PM
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Originally Posted by Mercier
Thanks for the feedback; I was hoping that was the case.

Any input on the possibility of this truck working with 8L90e? Any experience with that setup in a AWD Escalade setup? Is there any sort of tcase control(like "auto" in this Z71) or is it all truly seamless?

​​​​​
Well anything is possible with enough time & money. I haven't researched or had any of my customers wanting to do a 8l90 swap. One guy who is pretty up on messing controllers is Dave from DSX Tuning in TX. I have tuned a few newer Escalades but never really paid attention to the transfer case control ****. I know on the older ones there was no **** or no control just AWD all the time.
Old 01-28-2018, 03:50 PM
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Old 01-28-2018, 09:46 PM
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2014 6.2 trucks had the 6 speed trans
Old 01-30-2018, 08:45 AM
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Originally Posted by Feed
2014 6.2 trucks had the 6 speed trans
Interesting. Was the 8L90 not available at all until 2015? Are 2014 electronics capable of 8L90?

Thanks.
Old 01-30-2018, 08:30 PM
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2015 was first year for 8l90 in the trucks, 6.2l only. No clue on the electronics.
Old 02-01-2018, 07:56 AM
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great write up!
Old 02-03-2018, 08:14 AM
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Originally Posted by Aim
great write up!
Thanks. Hopefully more to come soon.

Now likely going to build the 6L80 or buy a built example of same. Any suggestions/feedback? PATC looks to be within a few hours of me which is nice.

5.3 4x4 would be 6L80 and not 90 right?

Thanks.

EDIT: Looks like RPO "MYC" indicates 6L80e.


Last edited by Mercier; 02-03-2018 at 08:36 AM.
Old 02-03-2018, 05:21 PM
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Yup MYC is the 6l80 and MYD is the 6l90
Old 02-04-2018, 02:52 AM
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Originally Posted by Mercier
Thanks. Hopefully more to come soon.

Now likely going to build the 6L80 or buy a built example of same. Any suggestions/feedback? PATC looks to be within a few hours of me which is nice.

5.3 4x4 would be 6L80 and not 90 right?

Thanks.

EDIT: Looks like RPO "MYC" indicates 6L80e.

trans will hold for 700 it's not problem for you yet remove trans t-stat with 40k cooler should be good .

run the kit for a while first you never know what will go wrong



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