Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Model
Stock
Porsche 911
992 : 2019- 1
991 : 2011- 19
997 : 2004- 80
996 : 1997-2005 33
993 : 1993-1998 4
964 : 1989-1993 2
Carrera 3.2 : 1983-1989 3
Carrera SC : 1977-1983 1
930 Turbo : 1975-1989 0
Early 911 : 1964-1977 0
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 25
Cayman : 2005- 16
Cayenne : 2003- 2
Macan : 2014- 4
Panamera : 2009- 0
912-914-924-928-944-968 1
959 - CarreraGT - RaceCar 0
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [992] 2018-Current
Porsche 911 [992]
911 [991] 2011-2019
Porsche 911 [991]
911 [997] 2004-2012
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
ok51mon
Imola


Joined: 08 Oct 2014
Posts: 766



PostPosted: Mon Feb 25, 2019 5:43 pm    Post subject: Turbo Tiptronic Gearbox Info- 722.653- 590ft/lbs-800nm Reply with quote

The Porsche Turbo (996) Tiptronic box is actually a Mercedes 722.653 box (590 ft/lbs 800 nm holding capacity).

In fact I'm pretty sure all the Tip boxes are actually Merc 722 box variations.

It's also the same box used in the McLaren SLR only with different clutch packs . All of which a retrofittable to our Tiptronics if you want to run big power.

I decided on a Holibox for mine for competition but during my research travels I had a look into the capabilities of the 722.

You can do loads with the 722 and the Mercedes forums are leaps and bounds ahead with this box compared to the Porsche enthusiasts;

Add another clutch pack in between gear 3-4, rebuild with uprated clutch packs , Rev match on downshift, Shift much faster. There is DIY's for all of these if you can find them.


Here let me throw you some bones.

https://docs.google.com/document/d/1_WiBay-rg3oWv8VhuVyUuVJ-f22PwEzD5N_LuAQHUNI/edit

https://www.benzworld.org/forums/w210-e-class/1463460-mercedes-benz-722-6-transmission-faq.html

http://www.superturbodiesel.com/std/forumdisplay.php?fid=9&page=10

https://www.benzworld.org/forums/w210-e-class/1574684-advice-722-6-trans-removed-diy.html


https://www.atsg.us/atsg/mercedes-722-6-nag-1.html

https://www.atsg.us/atsg/mercedes-722-6-dvd-video-companion-manual.html

https://yourcovers.com/transpan_11117.php

Update ; NAG1 , W5A850 are all the same box

722.6 Manual: http://www.w124performance.com/docs/mb/transmission/722.6/trans_722.6_ATSG_2004.pdf
_________________
4.1L Incoming

Last edited by ok51mon on Sat Jun 22, 2019 11:28 pm; edited 6 times in total
 
  
View user's profile Send private message
   
ok51mon
Imola


Joined: 08 Oct 2014
Posts: 766



PostPosted: Mon Feb 25, 2019 7:13 pm    Post subject: Reply with quote

This was initially just a response to a post in a separate thread guys so S ,P and G aren't exactly my finest.

Happy to re-write this if the Admin feels the forum would benefit from this post.

Any questions fire away!
_________________
4.1L Incoming
 
  
View user's profile Send private message
   
deMort
Dijon


Joined: 21 Mar 2015
Posts: 7159
Location: Brighton


PostPosted: Mon Feb 25, 2019 7:29 pm    Post subject: Reply with quote

I was a little confused by this thread but i assume its part of some other thread and is now seperate ?

original thread if so please .. id like to have a read .

All i can add ..

The Turbo was released in the second half of 2000 but as such it is a 2001 model .. so technically the first Turbo is a 2001 .

They had the Merc box as standard , the ZF was used in other models up until 2002 when they switched to the Merc boxes .

Back in the late 1990,s and Porsche were almost bankrupt .. they couldn,t afford to design their own boxes .

The Merc box is fine for the Turbo and a limited increase in power .. if you start pushing the limits though then modification is required ..

Clutch packs and i think brake bands , not sure as its not my area im afraid but it is logicall ..

You upgrade the clutch on a manual .. well a Tip is not really any different in a sense .

i would also agree its probably an over looked item when increaseing BHP on the engines so a thread on it is well worth it Thumb
_________________
.

My Daughter's Crowdfunding has hit the target see Here

Thank you all so Very much .

She's not going until july 2020 though .



Mechanic

7pm - 9pm

Now At An Indy.
 
  
View user's profile Send private message
   
T8
General
General


Joined: 29 Jun 2010
Posts: 15886
Location: Kent


PostPosted: Mon Feb 25, 2019 11:47 pm    Post subject: Reply with quote

deMort wrote:


I was a little confused by this thread but i assume its part of some other thread and is now seperate ?

original thread if so please .. id like to have a read .



It was split out from another thread because it wasn't at all relevant to the original topic or anything that had been discussed within it.

Original thread => http://911uk.com/viewtopic.php?t=78825&start=20&postdays=0&postorder=asc&highlight=
_________________
2007 Guards Red 997 Turbo Tiptronic
ex 2004 Polar Silver 996T Tiptronic
ex 2002 Seal Grey 996.2 C4 Tiptronic
ex 1978 Silver 924 Manual
 
  
View user's profile Send private message
   
911tom
Watkins Glen


Joined: 22 May 2012
Posts: 2033
Location: Buckinghamshire


PostPosted: Tue Feb 26, 2019 8:48 am    Post subject: Reply with quote

Excellent research Si! All very informative. Thank you for sharing thumbsup
_________________
996 Turbo - Link to my 3.8L turbo build thread
2011 Cayenne
718 Cayman GTS

350Bhp astra van for work, semi-retired from daily duties
2009 Ariel Atom 3 Supercharged SOLD but never forgotten
 
  
View user's profile Send private message
   
ok51mon
Imola


Joined: 08 Oct 2014
Posts: 766



PostPosted: Tue Feb 26, 2019 11:58 am    Post subject: Reply with quote

Explanation Of Clutch Slip

A quick touch on people with clutches slipping as some of you have messaged me on this.

I’ll try and give an explanation of what is happening.

The Engine needs to get the power it creates to the driving wheels of your car so it needs to make literally, a hand shake deal.

We will call (1)The Engine Barbara and (2) The Driving Wheels Geoffrey for the purpose of this explanation.


When Barbara and Geoff make their deal they exclusively shake hands in the Gearbox.

However, if for example Barbara is making too much power (above 590ft/lbs) she cannot shake hands with Geoffrey for very long before their hands slip out of the hand shake.

If any of their hands slip, both of their hands will become permanently blistered meaning that the next time they shake hand they aren’t able to apply as much force as last time as a result of the pain and/ or damage.

This is what is happening when your gearbox is slipping. Its also will get more frequent once it has slipped the first time.


So What Is Some Of The Solutions?

(1)

Geoff and Barbara drastically increase their hand shake pressure (Essentially they squeeze their hands together more tightly.)

-This is known as increasing the Valve Body Pressure . This can be done electronically via a standalone such as the one above or Physically through means of porting which is much more invasive.



(2)

Geoff and Barbara wear special sticky gloves to prevent slippage

-This is known as fitting aftermarket clutches for increased grip.

Best


S
_________________
4.1L Incoming

Last edited by ok51mon on Thu Feb 28, 2019 12:57 pm; edited 2 times in total
 
  
View user's profile Send private message
   
deMort
Dijon


Joined: 21 Mar 2015
Posts: 7159
Location: Brighton


PostPosted: Tue Feb 26, 2019 8:14 pm    Post subject: Reply with quote

logical and a clever analogy .
_________________
.

My Daughter's Crowdfunding has hit the target see Here

Thank you all so Very much .

She's not going until july 2020 though .



Mechanic

7pm - 9pm

Now At An Indy.
 
  
View user's profile Send private message
   
Dammit
Indianapolis


Joined: 23 Sep 2016
Posts: 2267



PostPosted: Wed Feb 27, 2019 6:03 pm    Post subject: Reply with quote

I believe my 2007 C55 AMG has this gearbox, I’d love it if it rev-matched on the downshift.
_________________
My 996, AKA Project Ridiculous
 
  
View user's profile Send private message
   
Halcyon
Imola


Joined: 02 Nov 2015
Posts: 815
Location: Somerset


PostPosted: Wed Feb 27, 2019 6:58 pm    Post subject: Reply with quote

Dammit wrote:
I believe my 2007 C55 AMG has this gearbox, I’d love it if it rev-matched on the downshift.


I may be wrong, but I believe yours would have the 722.9 "7G Tronic" - that's what was in my 05 CLK AMG at least...

#randombitofinfo

Thumb
_________________
996.2 Carrera 4 Convertible Tip
 
  
View user's profile Send private message
   
Dammit
Indianapolis


Joined: 23 Sep 2016
Posts: 2267



PostPosted: Sun Mar 03, 2019 8:56 am    Post subject: Reply with quote

Contemporary C classes had the 7G-tronic but IIRC the C55 had the older unit as it was thought to be too near the torque limit of the 7.
_________________
My 996, AKA Project Ridiculous
 
  
View user's profile Send private message
   
ok51mon
Imola


Joined: 08 Oct 2014
Posts: 766



PostPosted: Wed Mar 06, 2019 1:58 pm    Post subject: Reply with quote

Rev Matching On The Downshift- 722.9

https://www.youtube.com/watch?v=mIIvEnR3KUA
_________________
4.1L Incoming

Last edited by ok51mon on Wed Mar 06, 2019 2:12 pm; edited 1 time in total
 
  
View user's profile Send private message
   
MisterCorn
Dijon


Joined: 08 Jan 2011
Posts: 7204
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Wed Mar 06, 2019 2:04 pm    Post subject: Reply with quote

Dammit wrote:
Contemporary C classes had the 7G-tronic but IIRC the C55 had the older unit as it was thought to be too near the torque limit of the 7.


That was certainly the case on the R230 SL55. It runs a 5 speed auto whereas others run 7 speed.

MC
 
  
View user's profile Send private message Visit poster's website
   
ok51mon
Imola


Joined: 08 Oct 2014
Posts: 766



PostPosted: Wed Mar 06, 2019 2:14 pm    Post subject: Reply with quote

MisterCorn wrote:
Dammit wrote:
Contemporary C classes had the 7G-tronic but IIRC the C55 had the older unit as it was thought to be too near the torque limit of the 7.


That was certainly the case on the R230 SL55. It runs a 5 speed auto whereas others run 7 speed.

MC


Martin does your SL63 run the same or similiar 722 gearbox?
_________________
4.1L Incoming
 
  
View user's profile Send private message
   
MisterCorn
Dijon


Joined: 08 Jan 2011
Posts: 7204
Location: Nottingham, England

2004 Porsche 996 Turbo

PostPosted: Wed Mar 06, 2019 3:03 pm    Post subject: Reply with quote

ok51mon wrote:
MisterCorn wrote:
Dammit wrote:
Contemporary C classes had the 7G-tronic but IIRC the C55 had the older unit as it was thought to be too near the torque limit of the 7.


That was certainly the case on the R230 SL55. It runs a 5 speed auto whereas others run 7 speed.

MC


Martin does your SL63 run the same or similiar 722 gearbox?


Mine is an SL55 with the F1 pack, hence it looks like an SL65 from the front. I am not sure which model of gearbox it is, but it is definitely a 5 speed with comfort and sports setting, starts off in second gear on comfort mode and has flappy paddles. It is ponderously slow and suits the nature of the supercharged V8 with massive torque.

MC
 
  
View user's profile Send private message Visit poster's website
   
ragpicker
Reims


Joined: 14 Apr 2013
Posts: 4022
Location: North East England


PostPosted: Wed Mar 06, 2019 4:07 pm    Post subject: Reply with quote

MC's will be the 722.6 in his SL which is the same as the one in the 996/7 turbos.

This is different to the 722.9 which has 7 speed and can have the blip shift mod done. The 722.9 is the more modern variant.
_________________
996 turbo - FOR SALE, Price reduced: http://911uk.com/viewtopic.php?t=131025&highlight=
986 S - usually in pieces: http://911uk.com/viewtopic.php?t=112626
955 Cayenne Turbo - a work in progress: http://911uk.com/viewtopic.php?t=131286&highlight=
 
  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Page 1 of 1

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum
You cannot post calendar events in this forum