Renntech TCU tune
01-03-2023, 01:44 AM
#26
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AMGstar305 (01-05-2023)
01-03-2023, 11:17 AM
#28
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2020 McLaren 720s Spider
RENNtech TCU is tune available for AMG GT -series. Call for details.
https://renntechmercedes.com/index.p.../tcu-7g-detail
https://renntechmercedes.com/index.p.../tcu-7g-detail
01-03-2023, 09:46 PM
#29
PLATINUM SPONSOR
Good Evening Gents,
In regards to our TCU tune, link is below.
https://www.premiertuninggroup.com/c...cu-calibration
The process is quite long and we will try to make it as concise as possible. Excuse the rather long reply.
We have done extensive R&D on the C190 TCU. As a matter of fact, our ability to tune the TCU is the real reason why we are the exclusive Mercedes clutch dealer for Dodson.
Let's first discuss stock clutch pressure and slip. This is a general rule of thumb for clutch pressure and the clutch's ability to hold is the following.
2015-2019 GT/GT-S will see slip at roughly 720whp
2020+ GT/GT-S will see slip at roughly 800whp
GT-C/GT-R will see slip at roughly 850whp
GT Black will see slip at roughly 875whp
PTG Tuned C190 will see slip at roughly 950whp
PTG Tuned C190 with Dodson Clutch will see slip at roughly 1,400whp
This is pretty critical data that has been extensively tested by us because it gives us a baseline as to what AMG is putting into their calibration files to make the TCU hold more power and ultimately shift better. If you have driven all the variations of the C190, you will see that the Black Series is the best of the bunch, it gets progressively worse as you go up the line. We list the baseline pressures on our website but to reiterate, we run clutch pressure up to 32 Bar while stock GT/GT-S is 22 Bar, Stock GT-C, GT-R 25 Bar and Stock GT Black Series 27.5 Bar.
We also see that shift speeds among many other parts of the calibration are far superior in the Black Series. As a matter of fact, the Black Series has perhaps thousands of maps that differ from the next best thing (GT-C and GT-R) and we have gotten quite a bit of data on what these are, and how to make it even better than the Black Series.
The next thing to note is gear ratio and differential type. The GT/GT-S has different final drive and 1st gear while the others share the same. Some cars have an electronic differential and some have a mechanical differential. This all comes into play when tuning the TCU.
The TCU is also responsible for several torque limits. Just like everything else we outlined, the Black Series has the most "raised" limits. It simply launches much better, and power delivery off and on the shifts is far superior. We have tested this and made our own changes that raise limits responsibly more.
From here, we can easily change things like Race Start. The GT/GT-S requires a complex turn of knobs and pressing of paddles, while the others are just brake and gas. We give you the choice of what you want, and likely that's to just use brake and gas. We also custom calibrate the coolant pumps to run at a higher duty cycle ramp rate. This brings temps down to 160's F rather than 200. When doing this, we see the clutches having much more life, and the car is simply more responsive when it is driven hard.
Lastly, we write custom firmware in the TCU so you can have an adjustable Race Start RPM by using the paddles to adjust up or down. This gives you a launch range based on your desire, but typically set to 3,800-5,000 RPM. We also work extensively on launch control limits so the car leaves the line much better and relies more on the tire's ability to get traction, rather than the TCU limiting power.
You may read all of this and say, I don't make nearly that kind of power. The same rules apply however. Shift speed and timing is a big part of the clutches holding power, and they also transform the feel of the car.
The end result is quite a difference and has propelled client cars to set 60-130mph world records and allows clients to have a truly transformed feel from the transmission.
We hope this helps and please feel free to let us know if you have any questions.
Thanks and Happy New Year.
Team PTG
In regards to our TCU tune, link is below.
https://www.premiertuninggroup.com/c...cu-calibration
The process is quite long and we will try to make it as concise as possible. Excuse the rather long reply.
We have done extensive R&D on the C190 TCU. As a matter of fact, our ability to tune the TCU is the real reason why we are the exclusive Mercedes clutch dealer for Dodson.
Let's first discuss stock clutch pressure and slip. This is a general rule of thumb for clutch pressure and the clutch's ability to hold is the following.
2015-2019 GT/GT-S will see slip at roughly 720whp
2020+ GT/GT-S will see slip at roughly 800whp
GT-C/GT-R will see slip at roughly 850whp
GT Black will see slip at roughly 875whp
PTG Tuned C190 will see slip at roughly 950whp
PTG Tuned C190 with Dodson Clutch will see slip at roughly 1,400whp
This is pretty critical data that has been extensively tested by us because it gives us a baseline as to what AMG is putting into their calibration files to make the TCU hold more power and ultimately shift better. If you have driven all the variations of the C190, you will see that the Black Series is the best of the bunch, it gets progressively worse as you go up the line. We list the baseline pressures on our website but to reiterate, we run clutch pressure up to 32 Bar while stock GT/GT-S is 22 Bar, Stock GT-C, GT-R 25 Bar and Stock GT Black Series 27.5 Bar.
We also see that shift speeds among many other parts of the calibration are far superior in the Black Series. As a matter of fact, the Black Series has perhaps thousands of maps that differ from the next best thing (GT-C and GT-R) and we have gotten quite a bit of data on what these are, and how to make it even better than the Black Series.
The next thing to note is gear ratio and differential type. The GT/GT-S has different final drive and 1st gear while the others share the same. Some cars have an electronic differential and some have a mechanical differential. This all comes into play when tuning the TCU.
The TCU is also responsible for several torque limits. Just like everything else we outlined, the Black Series has the most "raised" limits. It simply launches much better, and power delivery off and on the shifts is far superior. We have tested this and made our own changes that raise limits responsibly more.
From here, we can easily change things like Race Start. The GT/GT-S requires a complex turn of knobs and pressing of paddles, while the others are just brake and gas. We give you the choice of what you want, and likely that's to just use brake and gas. We also custom calibrate the coolant pumps to run at a higher duty cycle ramp rate. This brings temps down to 160's F rather than 200. When doing this, we see the clutches having much more life, and the car is simply more responsive when it is driven hard.
Lastly, we write custom firmware in the TCU so you can have an adjustable Race Start RPM by using the paddles to adjust up or down. This gives you a launch range based on your desire, but typically set to 3,800-5,000 RPM. We also work extensively on launch control limits so the car leaves the line much better and relies more on the tire's ability to get traction, rather than the TCU limiting power.
You may read all of this and say, I don't make nearly that kind of power. The same rules apply however. Shift speed and timing is a big part of the clutches holding power, and they also transform the feel of the car.
The end result is quite a difference and has propelled client cars to set 60-130mph world records and allows clients to have a truly transformed feel from the transmission.
We hope this helps and please feel free to let us know if you have any questions.
Thanks and Happy New Year.
Team PTG
__________________
PREMIER TUNING GROUP
THE LEADERS IN AMG PERFORMANCE
PREMIER TUNING GROUP
THE LEADERS IN AMG PERFORMANCE
Last edited by PTG; 01-03-2023 at 09:52 PM.
The following 10 users liked this post by PTG:
AMG 17GT (01-04-2023),
AMGstar305 (01-05-2023),
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dowheelies (01-04-2023),
Hetzle (01-04-2023),
and 5 others liked this post.
01-04-2023, 10:22 PM
#30
Senior Member
Good Evening Gents,
In regards to our TCU tune, link is below.
https://www.premiertuninggroup.com/c...cu-calibration
The process is quite long and we will try to make it as concise as possible. Excuse the rather long reply.
We have done extensive R&D on the C190 TCU. As a matter of fact, our ability to tune the TCU is the real reason why we are the exclusive Mercedes clutch dealer for Dodson.
Let's first discuss stock clutch pressure and slip. This is a general rule of thumb for clutch pressure and the clutch's ability to hold is the following.
2015-2019 GT/GT-S will see slip at roughly 720whp
2020+ GT/GT-S will see slip at roughly 800whp
GT-C/GT-R will see slip at roughly 850whp
GT Black will see slip at roughly 875whp
PTG Tuned C190 will see slip at roughly 950whp
PTG Tuned C190 with Dodson Clutch will see slip at roughly 1,400whp
This is pretty critical data that has been extensively tested by us because it gives us a baseline as to what AMG is putting into their calibration files to make the TCU hold more power and ultimately shift better. If you have driven all the variations of the C190, you will see that the Black Series is the best of the bunch, it gets progressively worse as you go up the line. We list the baseline pressures on our website but to reiterate, we run clutch pressure up to 32 Bar while stock GT/GT-S is 22 Bar, Stock GT-C, GT-R 25 Bar and Stock GT Black Series 27.5 Bar.
We also see that shift speeds among many other parts of the calibration are far superior in the Black Series. As a matter of fact, the Black Series has perhaps thousands of maps that differ from the next best thing (GT-C and GT-R) and we have gotten quite a bit of data on what these are, and how to make it even better than the Black Series.
The next thing to note is gear ratio and differential type. The GT/GT-S has different final drive and 1st gear while the others share the same. Some cars have an electronic differential and some have a mechanical differential. This all comes into play when tuning the TCU.
The TCU is also responsible for several torque limits. Just like everything else we outlined, the Black Series has the most "raised" limits. It simply launches much better, and power delivery off and on the shifts is far superior. We have tested this and made our own changes that raise limits responsibly more.
From here, we can easily change things like Race Start. The GT/GT-S requires a complex turn of knobs and pressing of paddles, while the others are just brake and gas. We give you the choice of what you want, and likely that's to just use brake and gas. We also custom calibrate the coolant pumps to run at a higher duty cycle ramp rate. This brings temps down to 160's F rather than 200. When doing this, we see the clutches having much more life, and the car is simply more responsive when it is driven hard.
Lastly, we write custom firmware in the TCU so you can have an adjustable Race Start RPM by using the paddles to adjust up or down. This gives you a launch range based on your desire, but typically set to 3,800-5,000 RPM. We also work extensively on launch control limits so the car leaves the line much better and relies more on the tire's ability to get traction, rather than the TCU limiting power.
You may read all of this and say, I don't make nearly that kind of power. The same rules apply however. Shift speed and timing is a big part of the clutches holding power, and they also transform the feel of the car.
The end result is quite a difference and has propelled client cars to set 60-130mph world records and allows clients to have a truly transformed feel from the transmission.
We hope this helps and please feel free to let us know if you have any questions.
Thanks and Happy New Year.
Team PTG
In regards to our TCU tune, link is below.
https://www.premiertuninggroup.com/c...cu-calibration
The process is quite long and we will try to make it as concise as possible. Excuse the rather long reply.
We have done extensive R&D on the C190 TCU. As a matter of fact, our ability to tune the TCU is the real reason why we are the exclusive Mercedes clutch dealer for Dodson.
Let's first discuss stock clutch pressure and slip. This is a general rule of thumb for clutch pressure and the clutch's ability to hold is the following.
2015-2019 GT/GT-S will see slip at roughly 720whp
2020+ GT/GT-S will see slip at roughly 800whp
GT-C/GT-R will see slip at roughly 850whp
GT Black will see slip at roughly 875whp
PTG Tuned C190 will see slip at roughly 950whp
PTG Tuned C190 with Dodson Clutch will see slip at roughly 1,400whp
This is pretty critical data that has been extensively tested by us because it gives us a baseline as to what AMG is putting into their calibration files to make the TCU hold more power and ultimately shift better. If you have driven all the variations of the C190, you will see that the Black Series is the best of the bunch, it gets progressively worse as you go up the line. We list the baseline pressures on our website but to reiterate, we run clutch pressure up to 32 Bar while stock GT/GT-S is 22 Bar, Stock GT-C, GT-R 25 Bar and Stock GT Black Series 27.5 Bar.
We also see that shift speeds among many other parts of the calibration are far superior in the Black Series. As a matter of fact, the Black Series has perhaps thousands of maps that differ from the next best thing (GT-C and GT-R) and we have gotten quite a bit of data on what these are, and how to make it even better than the Black Series.
The next thing to note is gear ratio and differential type. The GT/GT-S has different final drive and 1st gear while the others share the same. Some cars have an electronic differential and some have a mechanical differential. This all comes into play when tuning the TCU.
The TCU is also responsible for several torque limits. Just like everything else we outlined, the Black Series has the most "raised" limits. It simply launches much better, and power delivery off and on the shifts is far superior. We have tested this and made our own changes that raise limits responsibly more.
From here, we can easily change things like Race Start. The GT/GT-S requires a complex turn of knobs and pressing of paddles, while the others are just brake and gas. We give you the choice of what you want, and likely that's to just use brake and gas. We also custom calibrate the coolant pumps to run at a higher duty cycle ramp rate. This brings temps down to 160's F rather than 200. When doing this, we see the clutches having much more life, and the car is simply more responsive when it is driven hard.
Lastly, we write custom firmware in the TCU so you can have an adjustable Race Start RPM by using the paddles to adjust up or down. This gives you a launch range based on your desire, but typically set to 3,800-5,000 RPM. We also work extensively on launch control limits so the car leaves the line much better and relies more on the tire's ability to get traction, rather than the TCU limiting power.
You may read all of this and say, I don't make nearly that kind of power. The same rules apply however. Shift speed and timing is a big part of the clutches holding power, and they also transform the feel of the car.
The end result is quite a difference and has propelled client cars to set 60-130mph world records and allows clients to have a truly transformed feel from the transmission.
We hope this helps and please feel free to let us know if you have any questions.
Thanks and Happy New Year.
Team PTG
01-04-2023, 10:59 PM
#31
PLATINUM SPONSOR
Furthermore, we found the limit of the transmission hardware itself, and that is the rear casing that holds the differential and that is at about 1,200-1,300whp. For this we are soon releasing a transmission girdle to provide structural support for the entire trans housing.
Below is a sneak preview of what this will look like. We have a few key components hidden but this gets the point across.
.
__________________
PREMIER TUNING GROUP
THE LEADERS IN AMG PERFORMANCE
PREMIER TUNING GROUP
THE LEADERS IN AMG PERFORMANCE
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01-05-2023, 09:16 AM
#32
Senior Member
In our extensive testing, we see the stock clutch start to slip at a 4.9-5.0 60-130mph which is about 950whp. If you don't run our TCU tune or a TCU tune from others that might do similar things, you can follow the chart in our prior post to understand clutch slip.
Furthermore, we found the limit of the transmission hardware itself, and that is the rear casing that holds the differential and that is at about 1,200-1,300whp. For this we are soon releasing a transmission girdle to provide structural support for the entire trans housing.
.
Furthermore, we found the limit of the transmission hardware itself, and that is the rear casing that holds the differential and that is at about 1,200-1,300whp. For this we are soon releasing a transmission girdle to provide structural support for the entire trans housing.
.
Using your TCU upgrade and adding a 20% safety margin to the 950whp to avoid slippage and excessive stress to the drivetrain, so the top hp is at 760 whp, Base on your extensive testing, would you say that this hp is safe for all OE drivetrain components of the GT, GTS, GTC, GTR and GTR Pro doing 30 min runs on track days?
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Hetzle (01-05-2023)
01-05-2023, 12:25 PM
#33
PLATINUM SPONSOR
That is impressive. Thank you.
Using your TCU upgrade and adding a 20% safety margin to the 950whp to avoid slippage and excessive stress to the drivetrain, so the top hp is at 760 whp, Base on your extensive testing, would you say that this hp is safe for all OE drivetrain components of the GT, GTS, GTC, GTR and GTR Pro doing 30 min runs on track days?
Using your TCU upgrade and adding a 20% safety margin to the 950whp to avoid slippage and excessive stress to the drivetrain, so the top hp is at 760 whp, Base on your extensive testing, would you say that this hp is safe for all OE drivetrain components of the GT, GTS, GTC, GTR and GTR Pro doing 30 min runs on track days?
We also sell a cooling system that we can speak more in depth about. Perhaps we start a new thread to not hijack this one. If you all are keen on more discussion around the topic of tuning, cooling, clutches, etc., I will gladly start a new one. Thanks.
__________________
PREMIER TUNING GROUP
THE LEADERS IN AMG PERFORMANCE
PREMIER TUNING GROUP
THE LEADERS IN AMG PERFORMANCE
The following 4 users liked this post by PTG:
01-05-2023, 12:57 PM
#34
This has been VERY informative. Yes if you could start new threads to touch those other topics that would be great!!
As long as it is tuned by us, I would say venture to say it will be fine. Driving the car on track puts a lot of temperature in fluids. The ECU and TCU both control temps and this can play a role into how well it cools. If you every run a day with the AMG experience, you will see that the AMG GT-R's they use for testing have bypass switches built in to run the fans harder among other things. This can be done via tuning as well.
We also sell a cooling system that we can speak more in depth about. Perhaps we start a new thread to not hijack this one. If you all are keen on more discussion around the topic of tuning, cooling, clutches, etc., I will gladly start a new one. Thanks.
We also sell a cooling system that we can speak more in depth about. Perhaps we start a new thread to not hijack this one. If you all are keen on more discussion around the topic of tuning, cooling, clutches, etc., I will gladly start a new one. Thanks.
01-05-2023, 03:34 PM
#35
Senior Member
As long as it is tuned by us, I would say venture to say it will be fine. Driving the car on track puts a lot of temperature in fluids. The ECU and TCU both control temps and this can play a role into how well it cools. If you every run a day with the AMG experience, you will see that the AMG GT-R's they use for testing have bypass switches built in to run the fans harder among other things. This can be done via tuning as well.
We also sell a cooling system that we can speak more in depth about. Perhaps we start a new thread to not hijack this one. If you all are keen on more discussion around the topic of tuning, cooling, clutches, etc., I will gladly start a new one. Thanks.
We also sell a cooling system that we can speak more in depth about. Perhaps we start a new thread to not hijack this one. If you all are keen on more discussion around the topic of tuning, cooling, clutches, etc., I will gladly start a new one. Thanks.
Thank you. This is very informative.
One more question regarding your earlier comment. You calibrate the transmission cooling pumps to reduce the operating temperature from 200 to 160F. Is this change a purely function of the TCU tuning? or we are forced to implement your ECU tuning as well in order to achieve it?
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Skilly (01-05-2023)
01-05-2023, 03:49 PM
#36
Member
As long as it is tuned by us, I would say venture to say it will be fine. Driving the car on track puts a lot of temperature in fluids. The ECU and TCU both control temps and this can play a role into how well it cools. If you every run a day with the AMG experience, you will see that the AMG GT-R's they use for testing have bypass switches built in to run the fans harder among other things. This can be done via tuning as well.
We also sell a cooling system that we can speak more in depth about. Perhaps we start a new thread to not hijack this one. If you all are keen on more discussion around the topic of tuning, cooling, clutches, etc., I will gladly start a new one. Thanks.
We also sell a cooling system that we can speak more in depth about. Perhaps we start a new thread to not hijack this one. If you all are keen on more discussion around the topic of tuning, cooling, clutches, etc., I will gladly start a new one. Thanks.
01-05-2023, 09:48 PM
#37
PLATINUM SPONSOR
We started a new thread gents. Link below in case you missed it.
https://mbworld.org/forums/coupe-roa...ml#post8698011
https://mbworld.org/forums/coupe-roa...ml#post8698011
__________________
PREMIER TUNING GROUP
THE LEADERS IN AMG PERFORMANCE
PREMIER TUNING GROUP
THE LEADERS IN AMG PERFORMANCE
01-06-2023, 03:27 AM
#38
Senior Member
Throttle Closure During Shifts
The OEM tune closes the throttle to as much as 25% during gear 1-2 shift and to lesser degree thereafter. Any improvement to this with the PTG TCU tune? If you do, can you provide your throttle values during shifts?
Thanks
(I will move this question to the PTG thread
https://mbworld.org/forums/coupe-roadster/857152-ptg-tuning-modification-thread.html#post8698112 )
Thanks
(I will move this question to the PTG thread
https://mbworld.org/forums/coupe-roadster/857152-ptg-tuning-modification-thread.html#post8698112 )
Last edited by G. P; 01-06-2023 at 04:05 AM.
