8L90 8 Speed Transmission Breakdown?

Sledgehammer70 · 07-27-2015, 05:01 PM

Has any site done this yet?

I saw a performance mode tracker. But no actual YT videos showing the transmission in detail or even in overview.

I did find this by digging into these forums: http://www.camaro6.com/forums/showth...0+transmission Great read from "ORANGE U NV" who found the documents around the 8L90 and it being in the Corvette.

Sledgehammer70 · 07-27-2015, 05:03 PM

Some more info specific to the vette that is just about a year old: http://media.chevrolet.com/media/us/...peed-lead.html

SuperSound · 07-27-2015, 05:20 PM

What exactly are you looking to find?

I did find this on the 8L45. It has some info about the 8L90 too.
http://media.gm.com/media/us/en/cadi...spd-trans.html

Sledgehammer70 · 07-27-2015, 05:36 PM

Quote:

Originally Posted by SuperSound

What exactly are you looking to find?

I did find this on the 8L45. It has some info about the 8L90 too.
http://media.gm.com/media/us/en/cadi...spd-trans.html

I see so many videos of old men breaking down transmissions. Just wanted to see if anyone has done this for the 8L90 yet

SuperSound · 07-27-2015, 05:43 PM

Quote:

Originally Posted by Sledgehammer70

I see so many videos of old men breaking down transmissions. Just wanted to see if anyone has done this for the 8L90 yet

Ah haven't seen any but did find this. Not a video, but a very technical breakdown of the trans.

http://www.thetruthaboutcars.com/201...-transmission/

Noob · 07-28-2015, 12:48 AM

hmm, perhaps that´s the reason why i cant see the 8speed automatic on our german Chevy page ? only manuals to choose..... perhaps the delete it due to our fast autobahn driving ? heat problems ? http://www.chevrolet.de/modelle/corvette/konfigurieren/

ilirg · 07-28-2015, 02:18 AM

Quote:

Originally Posted by Noob

hmm, perhaps that´s the reason why i cant see the 8speed automatic on our german Chevy page ? only manuals to choose..... perhaps the delete it due to our fast autobahn driving ? heat problems ? http://www.chevrolet.de/modelle/corvette/konfigurieren/

Doubt that, there is a big difference between tracking a car and driving fast on a highway, the latter help's with cooling more then stop and go traffic anyway so that doesn't make any sense.

Noob · 07-28-2015, 02:30 AM

Quote:

Originally Posted by ilirg

Doubt that, there is a big difference between tracking a car and driving fast on a highway, the latter help's with cooling more then stop and go traffic anyway so that doesn't make any sense.

sure i know but why they cancelled the automatic, last year the old automatic was available i remember.
perhaps they always arrive 1 year later in europe as Ford does with it´s Mustang ?
Do the 2016 Camaro arrive in europe in 2017 ?

SuperSound · 07-28-2015, 09:06 AM

Quote:

Originally Posted by Noob

sure i know but why they cancelled the automatic, last year the old automatic was available i remember.
perhaps they always arrive 1 year later in europe as Ford does with it´s Mustang ?
Do the 2016 Camaro arrive in europe in 2017 ?

Can you get the auto in Corvette? Could be an error on the website.

CapeCruisin · 07-28-2015, 09:27 AM

This transmission overheats sometimes in base and Z51 C7s.

Probably another reason why the new Camaro has so many radiators!

The 8speed had several issues with it when it was debuted. I believe there are 2-3 TSBs out for it.

Kinks to work out, you know?

VADER SS L99 · 07-29-2015, 05:47 PM

I think by the time its released in the 6th Gen the kinks will be worked out. Vette has done the R&D for it. I have heard all Z51 vettes 2016+ are getting the Z06 cooler as well. GM has a habit of undercooling its automatics. Been that way for ever.

IOMike · 07-29-2015, 06:49 PM

Quote:

Originally Posted by CapeCruisin

This transmission overheats sometimes in base and Z51 C7s.

Probably another reason why the new Camaro has so many radiators!

The 8speed had several issues with it when it was debuted. I believe there are 2-3 TSBs out for it.

Kinks to work out, you know?

When tracked the c7s ran hit after several laps when it was hot out. They upgraded the cooling going forward. There were also some software tweaks, but this is typical.

I'm sure there will be a few software updates on the gen6 too, nothing out of the norm.

CapeCruisin · 07-30-2015, 06:35 PM

Quote:

Originally Posted by IOMike

When tracked the c7s ran hit after several laps when it was hot out. They upgraded the cooling going forward. There were also some software tweaks, but this is typical.

I'm sure there will be a few software updates on the gen6 too, nothing out of the norm.

JaxChris · 07-30-2015, 09:27 PM

Dropped off my 2013 today for a whine & rub in the steering column. They had a C7 auto in there with the tranny and torque tube dropped to remove the flywheel. Not all the teeth on it were correct, causing problems with the starter. One tranny specialist in the service department and he has been busy with C7 auto's for a couple months. Hoping these causes have been worked out in the 2016 Camaro. The same thing could happen to the 8L45 if people run it hard as well -- and it doesn't have the additional coolers out of the box.

07-27-2015, 05:03 PM	#2
Sledgehammer70 Lethal Camaro Drives: 16 2SS, 71 Std, Suburban RTS Join Date: Jun 2013 Location: Temecula, CA Posts: 3,855 View My Garage	Some more info specific to the vette that is just about a year old: http://media.chevrolet.com/media/us/...peed-lead.html __________________ Thanks My Build Thread \| Lethal Garage YouTube \| Lethal Camaro IG \|

07-27-2015, 05:20 PM	#3
SuperSound Drives: '17 Camaro 2SS A8 Join Date: Jan 2015 Location: Eastern NC Posts: 5,063 View My Garage	What exactly are you looking to find? I did find this on the 8L45. It has some info about the 8L90 too. http://media.gm.com/media/us/en/cadi...spd-trans.html __________________ Current: '17 2SS Hyper Blue, A8, MRC, NPP Past: '99 SS Camaro A4, '73 Camaro 383 A3 "Voices in your head are not considered insider information." 3800 Status - 6/16/16 (Built!) 6000 status - 6/29/16 (Delivered!)

07-28-2015, 12:48 AM	#6
Noob Drives: AUDI 80 Join Date: Jul 2015 Location: Germany Posts: 151	hmm, perhaps that´s the reason why i cant see the 8speed automatic on our german Chevy page ? only manuals to choose..... perhaps the delete it due to our fast autobahn driving ? heat problems ? http://www.chevrolet.de/modelle/corvette/konfigurieren/ Last edited by Noob; 07-28-2015 at 01:02 AM.

07-29-2015, 05:47 PM	#11
VADER SS L99 Drives: 2013 A6 GT 5.0 Join Date: Nov 2009 Location: Edmond, OK Posts: 2,909	I think by the time its released in the 6th Gen the kinks will be worked out. Vette has done the R&D for it. I have heard all Z51 vettes 2016+ are getting the Z06 cooler as well. GM has a habit of undercooling its automatics. Been that way for ever. __________________ BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.

07-28-2015, 09:27 AM	#10
CapeCruisin Daily Driver 24/7 365 Drives: '15 CRT 2SS/RS/1LE Join Date: Jul 2015 Location: Cape Cod, MA Posts: 827	This transmission overheats sometimes in base and Z51 C7s. Probably another reason why the new Camaro has so many radiators! The 8speed had several issues with it when it was debuted. I believe there are 2-3 TSBs out for it. Kinks to work out, you know?

07-30-2015, 09:27 PM	#14
JaxChris Drives: '16 2SS GD1 MX0 NPP F55 IO6 Join Date: Jun 2013 Location: Florida Posts: 1,298	Dropped off my 2013 today for a whine & rub in the steering column. They had a C7 auto in there with the tranny and torque tube dropped to remove the flywheel. Not all the teeth on it were correct, causing problems with the starter. One tranny specialist in the service department and he has been busy with C7 auto's for a couple months. Hoping these causes have been worked out in the 2016 Camaro. The same thing could happen to the 8L45 if people run it hard as well -- and it doesn't have the additional coolers out of the box.

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