4 and 6-speed automatics with paddle shifters for the Porsche 928
09-23-2014, 01:17 PM
#1
Developer
Thread Starter
4 and 6-speed automatics with paddle shifters for the Porsche 928
During and since developing the 6-speed manual trans swap for the Porsche 928, a number of customers have asked me if we could fit a modern automatic trans into their cars. Paddle-shifters were also on their wish-list.
The hurdle that we have just overcome on this concept is that the stock 928 has no provision for controlling an electronically-shifted automatic transmission. It simply has no CPU on board designed for such a task, so it must be added.
I have now selected a programmable controller that I believe will work nicely to move this project forward. It is made by Programmable Control Solutions.
They offer two solutions for us, the “Simple Shift” model which will satisfy 95% of the installations and is easily programmed; and the “TCM-2000” model for that 5% that wants control over each and every aspect of the transmission and is willing to give up simple set-up to do it.
Both models are compatible with their paddle shifters, one with a display feature that displays the current gear that you are in or any one of 13 other items. These paddle shifters will fit MOMO and Sparco 5-bolt and 6-bolt steering wheels.
For the 928 automatic trans swap, either the GM 4L60 transaxle from a C5 Corvette or a GM 6L80 from a C6 Corvette could be used. The controller for the 4 speed exits today, the controller for the 6 speed is in testing now and expected Jan 1. As we have not physically installed either one into a 928 yet, I cannot yet speak to how much (if any) modifications need to be made to fit them in.
Added benefits: many of you already know that we are an Electromotive dealer, and have many installs of their TecGT engine management under our belts. Well, the guys that developed the PCS line of transmission controllers are ex-Electromotive engineers, so their design is very compatible with the TecGT system. In fact, it will pull its throttle position, engine rpm, and other data direct from the TecGT via the CAN bus, which will simplify installation and setup.
So… if you are interested in installing a 4-speed or 6-speed with paddle shifter into your 928, the door is open to you. We have not done one yet, but with the interest level that I have had I’m sure it will not be long until we have.
More information:
The Simple Shift controller (recommended) http://www.powertraincontrolsolution...t/SimpleShift/
The TCM-2000 controller: http://www.powertraincontrolsolution...oduct/TCM2000/
The Paddle Shifter: http://www.powertraincontrolsolution...addleshifters/
Our 6-speed Manual trans swap kit for the Porsche 928:
http://www.928motorsports.com/parts/...pgrade_kit.php
The hurdle that we have just overcome on this concept is that the stock 928 has no provision for controlling an electronically-shifted automatic transmission. It simply has no CPU on board designed for such a task, so it must be added.
I have now selected a programmable controller that I believe will work nicely to move this project forward. It is made by Programmable Control Solutions.
They offer two solutions for us, the “Simple Shift” model which will satisfy 95% of the installations and is easily programmed; and the “TCM-2000” model for that 5% that wants control over each and every aspect of the transmission and is willing to give up simple set-up to do it.
Both models are compatible with their paddle shifters, one with a display feature that displays the current gear that you are in or any one of 13 other items. These paddle shifters will fit MOMO and Sparco 5-bolt and 6-bolt steering wheels.
For the 928 automatic trans swap, either the GM 4L60 transaxle from a C5 Corvette or a GM 6L80 from a C6 Corvette could be used. The controller for the 4 speed exits today, the controller for the 6 speed is in testing now and expected Jan 1. As we have not physically installed either one into a 928 yet, I cannot yet speak to how much (if any) modifications need to be made to fit them in.
Added benefits: many of you already know that we are an Electromotive dealer, and have many installs of their TecGT engine management under our belts. Well, the guys that developed the PCS line of transmission controllers are ex-Electromotive engineers, so their design is very compatible with the TecGT system. In fact, it will pull its throttle position, engine rpm, and other data direct from the TecGT via the CAN bus, which will simplify installation and setup.
So… if you are interested in installing a 4-speed or 6-speed with paddle shifter into your 928, the door is open to you. We have not done one yet, but with the interest level that I have had I’m sure it will not be long until we have.
More information:
The Simple Shift controller (recommended) http://www.powertraincontrolsolution...t/SimpleShift/
The TCM-2000 controller: http://www.powertraincontrolsolution...oduct/TCM2000/
The Paddle Shifter: http://www.powertraincontrolsolution...addleshifters/
Our 6-speed Manual trans swap kit for the Porsche 928:
http://www.928motorsports.com/parts/...pgrade_kit.php
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havana928 (08-28-2019)
12-09-2014, 11:52 AM
#6
Developer
Thread Starter
I have just finished an automatic-to-6-speed-manual swap. Turned out very well.
https://rennlist.com/forums/928-foru...h-6-speed.html
So now, if I can jut get someone who wants an automatic with paddle-shifters, we can have at it.
https://rennlist.com/forums/928-foru...h-6-speed.html
So now, if I can jut get someone who wants an automatic with paddle-shifters, we can have at it.
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12-11-2014, 12:58 AM
#8
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Why not do a 6spd auto zf6hp transaxle instead of the gm box?
Takes paddle controls and tons of tq with minimal issues in many cars including the twin turbo Bentley brooklands/arnage.. It even already comes as a transaxle in my Aston Martin, and is pretty good in that car..
I'm thinking about a zf8hp box for the future if I don't do a Weismann semi-auto first......
Takes paddle controls and tons of tq with minimal issues in many cars including the twin turbo Bentley brooklands/arnage.. It even already comes as a transaxle in my Aston Martin, and is pretty good in that car..
I'm thinking about a zf8hp box for the future if I don't do a Weismann semi-auto first......
12-11-2014, 11:01 AM
#9
Developer
Thread Starter
$$$ and availability of good used ZF gearboxes. I like ZF gearboxes (had one in a Pantera I owned), but they are just not common enough to keep costs down.
Last edited by Carl Fausett; 01-03-2015 at 05:04 PM.
05-21-2018, 10:27 AM
#13
Developer
Thread Starter
The outline I made in post #1 is still correct in broad brush-strokes. .
I have more knowledge now than I did them, and better information as to which 6-speed fits best without major mods to the 928. The reader has to understand, however, that I haven't installed a paddle shifter to interface over a can bus into a 928 - so while the technology exists and all the manufacturers say it will work "together" there is always some issues to work out along the first-time learning curve.
That said, if provided the car, the time needed and the budget, I'm sure we could do it.
I have more knowledge now than I did them, and better information as to which 6-speed fits best without major mods to the 928. The reader has to understand, however, that I haven't installed a paddle shifter to interface over a can bus into a 928 - so while the technology exists and all the manufacturers say it will work "together" there is always some issues to work out along the first-time learning curve.
That said, if provided the car, the time needed and the budget, I'm sure we could do it.
05-21-2018, 11:37 AM
#15
Nordschleife Master
Well, as with many of Carl's projects, he needs the car in the shop and someone to pay for it to make it happen.
This isn't a criticism of Carl. He gets enough of that. It's just that the R&D costs money and someone needs to pay for that.
And I highly doubt a Tip or PDK could be made to work. Getting the 'brain' in those to work without having the rest of the stuff (engine, ABS, stability, ect) that the trans brain is supposed to communicate with would be very difficult. It's one of the reasons an engine transplant involving a different brand (LS, Coyote, ect) into a Cayenne hasn't happened and is unlikely to.
This isn't a criticism of Carl. He gets enough of that. It's just that the R&D costs money and someone needs to pay for that.
And I highly doubt a Tip or PDK could be made to work. Getting the 'brain' in those to work without having the rest of the stuff (engine, ABS, stability, ect) that the trans brain is supposed to communicate with would be very difficult. It's one of the reasons an engine transplant involving a different brand (LS, Coyote, ect) into a Cayenne hasn't happened and is unlikely to.