722.9 AMS/EXEDY clutch pack upgrade
#1
Senior Member
Thread Starter
Join Date: Oct 2008
Location: Markham
Posts: 351
Likes: 0
Received 25 Likes
on
21 Posts
07 Z06, 2011 c63pp
722.9 AMS/EXEDY clutch pack upgrade
Figured i'd try and post a constructive/productive thread.
I consider AMS to be highly regarded in the tuning world, and Exedy has always put out quality products so i figured id look into this.
I found quite a few Local E63 members with Upgraded turbo's posting about beefing up their
722.9 MCT's. I noticed they were using the AMS/alpha Exedy upgraded friction discs.
I did not know they existed before this. So I did some part searching and noticed that between all of the 722.9 transmission's a the K1/K2 clutch packs share some of the same part numbers.The K3 must have had a different friction material from factory to handle the E63's power output. I then went to the Local transmission shop that had been performing all of the upgrades.
TAT short for Toronto Automatic Transmission. Local to me in Toronto, Canada.
I spoke with the owner's Bob and Matt. Bob assured me that the 722.9's share the same clutch
pack designs and that the ams upgrade would work in my pre mct 722.9.
So, i took the plunge and ordered the friction upgrade from AMS and grabbed a weistec trans pan while i was at it.
Sure enough, Bob was correct and everything is buttoned up and ready for my future blower upgrade, they also installed my DSS carbon drive shaft. Now to figure out which way to go...
It is rated for 1000 ft lbs, so we'll see how it holds up in the future. So far the E63's are making anywhere from 7-800 awhp and seem to be coping well.
If you around the Toronto area, these guys are awesome, and they all have AMG's to boot.
I consider AMS to be highly regarded in the tuning world, and Exedy has always put out quality products so i figured id look into this.
I found quite a few Local E63 members with Upgraded turbo's posting about beefing up their
722.9 MCT's. I noticed they were using the AMS/alpha Exedy upgraded friction discs.
I did not know they existed before this. So I did some part searching and noticed that between all of the 722.9 transmission's a the K1/K2 clutch packs share some of the same part numbers.The K3 must have had a different friction material from factory to handle the E63's power output. I then went to the Local transmission shop that had been performing all of the upgrades.
TAT short for Toronto Automatic Transmission. Local to me in Toronto, Canada.
I spoke with the owner's Bob and Matt. Bob assured me that the 722.9's share the same clutch
pack designs and that the ams upgrade would work in my pre mct 722.9.
So, i took the plunge and ordered the friction upgrade from AMS and grabbed a weistec trans pan while i was at it.
Sure enough, Bob was correct and everything is buttoned up and ready for my future blower upgrade, they also installed my DSS carbon drive shaft. Now to figure out which way to go...
It is rated for 1000 ft lbs, so we'll see how it holds up in the future. So far the E63's are making anywhere from 7-800 awhp and seem to be coping well.
If you around the Toronto area, these guys are awesome, and they all have AMG's to boot.
Last edited by ritalin; 07-11-2017 at 06:38 AM.
The following users liked this post:
BLKROKT (07-10-2017)
The following users liked this post:
hachiroku (07-10-2017)
#4
MBWorld Fanatic!
Join Date: Jun 2008
Location: Los Angeles
Posts: 8,067
Received 2,849 Likes
on
1,680 Posts
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
That's really good info, thanks for sharing.
Coincidentally, I was just looking today at the Weistec clutch packs, and came across this document which is an interesting read. Trying to read up and understand the components better. http://weistec.com/media-events-press/7229transmission/
Anyway, their trans build package includes
Key Features:
Complete Package
Increased Torque Capacity
Weistec Performance Clutch Material
Increased Number of Discs per Clutch Pack
Redesigned Clutch Piston Geometry
Increased Frictional Surface Area
Increased Clutch Material
New OEM Gaskets and Seals
New OEM Fasteners and Hardware
Not sure what they change with the "Redesigned Clutch Piston Geometry" or if "Increased Number of Discs per Clutch Pack" makes a difference. Based on what you bought from AMS, what do you think?
Coincidentally, I was just looking today at the Weistec clutch packs, and came across this document which is an interesting read. Trying to read up and understand the components better. http://weistec.com/media-events-press/7229transmission/
Anyway, their trans build package includes
Key Features:
Complete Package
Increased Torque Capacity
Weistec Performance Clutch Material
Increased Number of Discs per Clutch Pack
Redesigned Clutch Piston Geometry
Increased Frictional Surface Area
Increased Clutch Material
New OEM Gaskets and Seals
New OEM Fasteners and Hardware
Not sure what they change with the "Redesigned Clutch Piston Geometry" or if "Increased Number of Discs per Clutch Pack" makes a difference. Based on what you bought from AMS, what do you think?
The following users liked this post:
CaptnCharisma (07-10-2017)
#5
Figured i'd try and post a constructive/productive thread.
I consider AMS to be highly regarded in the tuning world, and Exedy has always put out quality products so i figures id look into this.
I found quite a few Local E63 members with Upgraded turbo's posting about beefing up their
722.9 MCT's. I noticed they were using the AMS/alpha Exedy upgraded friction discs.
I did not know they existed before this. So I did some part searching and noticed that between all of the 722.9 transmission's a the K1/K2 clutch packs share some of the same part numbers.The K3 must have had a different friction material from factory to handle the E63's power output. I then went to the Local transmission shop that had been performing all of the upgrades.
TAT short for Toronto Automatic Transmission. Local to me in Toronto, Canada.
I spoke with the owner's Bob and Matt. Bob assured me that the 722.9's share the same clutch
pack designs and that the ams upgrade would work in my pre mct 722.9.
So, i took the plunge and ordered the friction upgrade from AMS and grabbed a weistec trans pan while i was at it.
Sure enough, Bob was correct and everything is buttoned up and ready for my future blower upgrade, they also installed my DSS carbon drive shaft. Now to figure out which way to go...
It is rated for 1000 ft lbs, so we'll see how it holds up in the future. So far the E63's are making anywhere from 7-800 awhp and seem to be coping well.
If you around the Toronto area, these guys are awesome, and they all have AMG's to boot.
I consider AMS to be highly regarded in the tuning world, and Exedy has always put out quality products so i figures id look into this.
I found quite a few Local E63 members with Upgraded turbo's posting about beefing up their
722.9 MCT's. I noticed they were using the AMS/alpha Exedy upgraded friction discs.
I did not know they existed before this. So I did some part searching and noticed that between all of the 722.9 transmission's a the K1/K2 clutch packs share some of the same part numbers.The K3 must have had a different friction material from factory to handle the E63's power output. I then went to the Local transmission shop that had been performing all of the upgrades.
TAT short for Toronto Automatic Transmission. Local to me in Toronto, Canada.
I spoke with the owner's Bob and Matt. Bob assured me that the 722.9's share the same clutch
pack designs and that the ams upgrade would work in my pre mct 722.9.
So, i took the plunge and ordered the friction upgrade from AMS and grabbed a weistec trans pan while i was at it.
Sure enough, Bob was correct and everything is buttoned up and ready for my future blower upgrade, they also installed my DSS carbon drive shaft. Now to figure out which way to go...
It is rated for 1000 ft lbs, so we'll see how it holds up in the future. So far the E63's are making anywhere from 7-800 awhp and seem to be coping well.
If you around the Toronto area, these guys are awesome, and they all have AMG's to boot.
impressive work
#6
Senior Member
Thread Starter
Join Date: Oct 2008
Location: Markham
Posts: 351
Likes: 0
Received 25 Likes
on
21 Posts
07 Z06, 2011 c63pp
BLKROKT,
I believe the approach is similar although i could not find much more info about the weistec upgrade pack, other than the experience Bob has with doing them. As far as i was told, there isnt much more than i got in the AMS/exedy setup that you require. The weistec kit offers more components for sure.
TAT has first hand experience with both.
From what i understand, the k1/k2 and k3 packs do the job of holding all the torque. If you read up on the AMS setup. The execution sounds very much the same. More discs, better material etc...
I believe the approach is similar although i could not find much more info about the weistec upgrade pack, other than the experience Bob has with doing them. As far as i was told, there isnt much more than i got in the AMS/exedy setup that you require. The weistec kit offers more components for sure.
TAT has first hand experience with both.
From what i understand, the k1/k2 and k3 packs do the job of holding all the torque. If you read up on the AMS setup. The execution sounds very much the same. More discs, better material etc...
Last edited by ritalin; 07-10-2017 at 08:03 PM.
The following users liked this post:
BLKROKT (07-11-2017)
#7
Senior Member
Thread Starter
Join Date: Oct 2008
Location: Markham
Posts: 351
Likes: 0
Received 25 Likes
on
21 Posts
07 Z06, 2011 c63pp
Originally Posted by mr747
WOWWWWWW good job bud what did the upgrade cost if you dont mind me asking??
impressive work
impressive work
I'll let you know the total in a day or two. Haven't settled up just yet.
Trending Topics
#8
Senior Member
Do they not offer it at all anymore as a stand alone purchase? Or do you have to get your transmission "bullet proofed" by them in order to purchase?
#9
Senior Member
Thread Starter
Join Date: Oct 2008
Location: Markham
Posts: 351
Likes: 0
Received 25 Likes
on
21 Posts
07 Z06, 2011 c63pp
Originally Posted by SuckaGDog
Do they not offer it at all anymore as a stand alone purchase? Or do you have to get your transmission "bullet proofed" by them in order to purchase?
#10
Senior Member
you are exactly right, when I built my trans Weistec said with the V2 clutches there really is no need for the valve body tuning and that it would be more or less redundant.
#12
Senior Member
Thread Starter
Join Date: Oct 2008
Location: Markham
Posts: 351
Likes: 0
Received 25 Likes
on
21 Posts
07 Z06, 2011 c63pp
Originally Posted by Jasonoff
Do you have the part numbers handy for the friction discs you ordered?
It's available exclusively through AMS.
#15
Validation
Couple months ago I wrote to AMS interested in their clutch upgrade for my 2012-C63 and they said it won't fit since is the same 722.9 transmission but every car model has some variation in the transmission so they can't guarantee proper fit.
I also check with Dodson and they told me that they are in R&D without a precise date to finish it.
So, we have no other option than Weistec?
Interested in your comments...
I also check with Dodson and they told me that they are in R&D without a precise date to finish it.
So, we have no other option than Weistec?
Interested in your comments...
#16
MBWorld Fanatic!
Join Date: Jun 2008
Location: Los Angeles
Posts: 8,067
Received 2,849 Likes
on
1,680 Posts
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Couple months ago I wrote to AMS interested in their clutch upgrade for my 2012-C63 and they said it won't fit since is the same 722.9 transmission but every car model has some variation in the transmission so they can't guarantee proper fit.
I also check with Dodson and they told me that they are in R&D without a precise date to finish it.
So, we have no other option than Weistec?
Interested in your comments...
I also check with Dodson and they told me that they are in R&D without a precise date to finish it.
So, we have no other option than Weistec?
Interested in your comments...
Did you even read the first post? The AMS/Exedy clutch packs apparently fit fine.
Figured i'd try and post a constructive/productive thread.
I consider AMS to be highly regarded in the tuning world, and Exedy has always put out quality products so i figured id look into this.
I found quite a few Local E63 members with Upgraded turbo's posting about beefing up their
722.9 MCT's. I noticed they were using the AMS/alpha Exedy upgraded friction discs.
I did not know they existed before this. So I did some part searching and noticed that between all of the 722.9 transmission's a the K1/K2 clutch packs share some of the same part numbers.The K3 must have had a different friction material from factory to handle the E63's power output. I then went to the Local transmission shop that had been performing all of the upgrades.
TAT short for Toronto Automatic Transmission. Local to me in Toronto, Canada.
I spoke with the owner's Bob and Matt. Bob assured me that the 722.9's share the same clutch
pack designs and that the ams upgrade would work in my pre mct 722.9.
So, i took the plunge and ordered the friction upgrade from AMS and grabbed a weistec trans pan while i was at it.
Sure enough, Bob was correct and everything is buttoned up and ready for my future blower upgrade, they also installed my DSS carbon drive shaft. Now to figure out which way to go...
It is rated for 1000 ft lbs, so we'll see how it holds up in the future. So far the E63's are making anywhere from 7-800 awhp and seem to be coping well.
If you around the Toronto area, these guys are awesome, and they all have AMG's to boot.
I consider AMS to be highly regarded in the tuning world, and Exedy has always put out quality products so i figured id look into this.
I found quite a few Local E63 members with Upgraded turbo's posting about beefing up their
722.9 MCT's. I noticed they were using the AMS/alpha Exedy upgraded friction discs.
I did not know they existed before this. So I did some part searching and noticed that between all of the 722.9 transmission's a the K1/K2 clutch packs share some of the same part numbers.The K3 must have had a different friction material from factory to handle the E63's power output. I then went to the Local transmission shop that had been performing all of the upgrades.
TAT short for Toronto Automatic Transmission. Local to me in Toronto, Canada.
I spoke with the owner's Bob and Matt. Bob assured me that the 722.9's share the same clutch
pack designs and that the ams upgrade would work in my pre mct 722.9.
So, i took the plunge and ordered the friction upgrade from AMS and grabbed a weistec trans pan while i was at it.
Sure enough, Bob was correct and everything is buttoned up and ready for my future blower upgrade, they also installed my DSS carbon drive shaft. Now to figure out which way to go...
It is rated for 1000 ft lbs, so we'll see how it holds up in the future. So far the E63's are making anywhere from 7-800 awhp and seem to be coping well.
If you around the Toronto area, these guys are awesome, and they all have AMG's to boot.
#18
MBWorld Fanatic!
Awesome upgrade!
Curious to know the total as well! Hows the new Drive Shaft?
Curious to know the total as well! Hows the new Drive Shaft?
Figured i'd try and post a constructive/productive thread.
I consider AMS to be highly regarded in the tuning world, and Exedy has always put out quality products so i figured id look into this.
I found quite a few Local E63 members with Upgraded turbo's posting about beefing up their
722.9 MCT's. I noticed they were using the AMS/alpha Exedy upgraded friction discs.
I did not know they existed before this. So I did some part searching and noticed that between all of the 722.9 transmission's a the K1/K2 clutch packs share some of the same part numbers.The K3 must have had a different friction material from factory to handle the E63's power output. I then went to the Local transmission shop that had been performing all of the upgrades.
TAT short for Toronto Automatic Transmission. Local to me in Toronto, Canada.
I spoke with the owner's Bob and Matt. Bob assured me that the 722.9's share the same clutch
pack designs and that the ams upgrade would work in my pre mct 722.9.
So, i took the plunge and ordered the friction upgrade from AMS and grabbed a weistec trans pan while i was at it.
Sure enough, Bob was correct and everything is buttoned up and ready for my future blower upgrade, they also installed my DSS carbon drive shaft. Now to figure out which way to go...
It is rated for 1000 ft lbs, so we'll see how it holds up in the future. So far the E63's are making anywhere from 7-800 awhp and seem to be coping well.
If you around the Toronto area, these guys are awesome, and they all have AMG's to boot.
I consider AMS to be highly regarded in the tuning world, and Exedy has always put out quality products so i figured id look into this.
I found quite a few Local E63 members with Upgraded turbo's posting about beefing up their
722.9 MCT's. I noticed they were using the AMS/alpha Exedy upgraded friction discs.
I did not know they existed before this. So I did some part searching and noticed that between all of the 722.9 transmission's a the K1/K2 clutch packs share some of the same part numbers.The K3 must have had a different friction material from factory to handle the E63's power output. I then went to the Local transmission shop that had been performing all of the upgrades.
TAT short for Toronto Automatic Transmission. Local to me in Toronto, Canada.
I spoke with the owner's Bob and Matt. Bob assured me that the 722.9's share the same clutch
pack designs and that the ams upgrade would work in my pre mct 722.9.
So, i took the plunge and ordered the friction upgrade from AMS and grabbed a weistec trans pan while i was at it.
Sure enough, Bob was correct and everything is buttoned up and ready for my future blower upgrade, they also installed my DSS carbon drive shaft. Now to figure out which way to go...
It is rated for 1000 ft lbs, so we'll see how it holds up in the future. So far the E63's are making anywhere from 7-800 awhp and seem to be coping well.
If you around the Toronto area, these guys are awesome, and they all have AMG's to boot.
The following users liked this post:
Jeff Houde (01-03-2021)
#22
Senior Member
Thread Starter
Join Date: Oct 2008
Location: Markham
Posts: 351
Likes: 0
Received 25 Likes
on
21 Posts
07 Z06, 2011 c63pp
Kris.
The car drives great, i cant give a lot of feedback yet as i have to break in the clutch packs to seat them properly.
A lot more feel through the driveline, positive firm feel to the shifts.
The car drives great, i cant give a lot of feedback yet as i have to break in the clutch packs to seat them properly.
A lot more feel through the driveline, positive firm feel to the shifts.
#23
I am trying to share some thoughts about what I have found about the clutch upgrade and as of today nobody has done clutch upgrade other than Weistec for the C63 even outside of US.
Ritalin start a good discussion and I hope he open a new direction for C63 clutch upgrade.
The following 2 users liked this post by paganing:
edwinphillips07 (01-20-2021),
shardul (07-12-2017)
#24
MBWorld Fanatic!
Join Date: Jun 2008
Location: Los Angeles
Posts: 8,067
Received 2,849 Likes
on
1,680 Posts
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Man why you always such a jerk? You need more sex in your life because you are always hating everybody's post. Look for something else to do with your life.
I am trying to share some thoughts about what I have found about the clutch upgrade and as of today nobody has done clutch upgrade other than Weistec for the C63 even outside of US.
Ritalin start a good discussion and I hope he open a new direction for C63 clutch upgrade.
I am trying to share some thoughts about what I have found about the clutch upgrade and as of today nobody has done clutch upgrade other than Weistec for the C63 even outside of US.
Ritalin start a good discussion and I hope he open a new direction for C63 clutch upgrade.
Seriously? The post was all about there being another option to Weistec. Renntech makes upgraded clutch plates too. Ok, AMS told you they don't work. The OP has shown that they do. What was your point again?
I was just pointing out that your post was retarded. Retarded people don't know they're retarded until it's pointed out. I was doing you a favor. You're welcome.
The following users liked this post:
Vpatriota (07-06-2019)
#25
Your "thought" after not reading the post was to ask "So we have no other option than Weistec?"
Seriously? The post was all about there being another option to Weistec. Renntech makes upgraded clutch plates too. Ok, AMS told you they don't work. The OP has shown that they do. What was your point again?
I was just pointing out that your post was retarded. Retarded people don't know they're retarded until it's pointed out. I was doing you a favor. You're welcome.
Seriously? The post was all about there being another option to Weistec. Renntech makes upgraded clutch plates too. Ok, AMS told you they don't work. The OP has shown that they do. What was your point again?
I was just pointing out that your post was retarded. Retarded people don't know they're retarded until it's pointed out. I was doing you a favor. You're welcome.