Transmission Tuning ....
#1
03-28-2021, 11:58 AM
Transmission Tuning ....
Hi Guys,
I received an email from VIEZU company and thought to share it for what it's worth, for you to read the information.https://viezu.com/dsg-tcu-gearbox-tuning
I received an email from VIEZU company and thought to share it for what it's worth, for you to read the information.https://viezu.com/dsg-tcu-gearbox-tuning
Top Answer
03-29-2021, 02:35 PM
Sponsor
Totally false. You literally have no basis for making this claim. Please tell me specifically, citing technical information on the gearbox and the specific technical information about the changes we are making that makes it inherently dangerous.
100% Valid. Tuning & increasing the performance of your vehicle is never risk-free and that's something we are quite transparent about.
Inherently Dangerous & not Risk Free are not the same thing.
You know, it's pretty tiresome that every time someone mentions modifying their car that you feel the need to jump in and rag on the owner and companies who offer the products without providing any constructive technical information to support your opinion. It's like when someone talks about some wheels or visual modifications and gets run up one side and down the other because other owners don't share their taste. If you don't like tuning and don't want to take any risk, that's great. It's not for everyone. It's your car and you're entitled to do what you would like with it. Just the same as other owners can take educated risks with their vehicles which they own.
We're not snake oil salesmen. We don't lie to people or obfuscate the risks of tuning, including those to warranty coverage.
Inherently Dangerous & not Risk Free are not the same thing.
You know, it's pretty tiresome that every time someone mentions modifying their car that you feel the need to jump in and rag on the owner and companies who offer the products without providing any constructive technical information to support your opinion. It's like when someone talks about some wheels or visual modifications and gets run up one side and down the other because other owners don't share their taste. If you don't like tuning and don't want to take any risk, that's great. It's not for everyone. It's your car and you're entitled to do what you would like with it. Just the same as other owners can take educated risks with their vehicles which they own.
We're not snake oil salesmen. We don't lie to people or obfuscate the risks of tuning, including those to warranty coverage.
__________________
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
#2
03-28-2021, 01:36 PM
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Yes...VAP has a TCU tune as well, that has been installed on many of our F-Types, and tested with no issues. It is more of a known commodity...No idea about the VIEZU version. If someone wants to be the test rabbit with their ~$19,000.00 ZF 8HP70 and try out the VIEZU version...I would love to hear their feedback/experience.
I am currently using the VAP ECU and TCU Tunes, and happy with both, as well as the support.
DC
VAP TCU Tune site for reference also
I am currently using the VAP ECU and TCU Tunes, and happy with both, as well as the support.
DC
VAP TCU Tune site for reference also
#4
03-28-2021, 01:56 PM
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#5
03-28-2021, 02:07 PM
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I chose to buy it and use it along with a bunch of other "dangerous" items. It is a car, not a legacy...If and when it blows, I will drive one of my others, or get a new one. I drive cars, and they do break and wear out.
If someone is too worried about it... Best to leave it stock....buy extended warranties... or park it. Those are the safest scenarios. There is always a risk/return relationship and an opportunity cost associated with everything we do...
DC
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datriani (11-06-2021)
#6
03-28-2021, 09:07 PM
Member
Its not rocket science. The harder and faster you make them shift the more heat they generate and the harder it is on everything it is connected too. Can you say toasty clutch packs. The shifts in Maserati Cambio Corsa was what I called violent. It was banging the gears hard but they last between 10 and 25K before a 10K rebuilt is required. I opted for a manual in the same Coupe GT. Sure I can speed shift it to get faster times but how long is the clutch and gear box going to last. Not very long. I was told the manual trans and clutch wont last either. 72,000 mile zero issues so it all depends on how you drive it. The gear box shifts plenty fast in the F Types. The Jag is not a drag car so I would worry more about the time you save braking correctly and hitting the late apex.
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SinF (03-29-2021)
#7
03-29-2021, 02:35 PM
Sponsor
Totally false. You literally have no basis for making this claim. Please tell me specifically, citing technical information on the gearbox and the specific technical information about the changes we are making that makes it inherently dangerous.
100% Valid. Tuning & increasing the performance of your vehicle is never risk-free and that's something we are quite transparent about.
Inherently Dangerous & not Risk Free are not the same thing.
You know, it's pretty tiresome that every time someone mentions modifying their car that you feel the need to jump in and rag on the owner and companies who offer the products without providing any constructive technical information to support your opinion. It's like when someone talks about some wheels or visual modifications and gets run up one side and down the other because other owners don't share their taste. If you don't like tuning and don't want to take any risk, that's great. It's not for everyone. It's your car and you're entitled to do what you would like with it. Just the same as other owners can take educated risks with their vehicles which they own.
We're not snake oil salesmen. We don't lie to people or obfuscate the risks of tuning, including those to warranty coverage.
Inherently Dangerous & not Risk Free are not the same thing.
You know, it's pretty tiresome that every time someone mentions modifying their car that you feel the need to jump in and rag on the owner and companies who offer the products without providing any constructive technical information to support your opinion. It's like when someone talks about some wheels or visual modifications and gets run up one side and down the other because other owners don't share their taste. If you don't like tuning and don't want to take any risk, that's great. It's not for everyone. It's your car and you're entitled to do what you would like with it. Just the same as other owners can take educated risks with their vehicles which they own.
We're not snake oil salesmen. We don't lie to people or obfuscate the risks of tuning, including those to warranty coverage.
__________________
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
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and 6 others liked this post.
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#8
03-29-2021, 04:24 PM
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Totally false. You literally have no basis for making this claim. Please tell me specifically, citing technical information on the gearbox and the specific technical information about the changes we are making that makes it inherently dangerous.
100% Valid. Tuning & increasing the performance of your vehicle is never risk-free and that's something we are quite transparent about.
Inherently Dangerous & not Risk Free are not the same thing.
You know, it's pretty tiresome that every time someone mentions modifying their car that you feel the need to jump in and rag on the owner and companies who offer the products without providing any constructive technical information to support your opinion. It's like when someone talks about some wheels or visual modifications and gets run up one side and down the other because other owners don't share their taste. If you don't like tuning and don't want to take any risk, that's great. It's not for everyone. It's your car and you're entitled to do what you would like with it. Just the same as other owners can take educated risks with their vehicles which they own.
We're not snake oil salesmen. We don't lie to people or obfuscate the risks of tuning, including those to warranty coverage.
100% Valid. Tuning & increasing the performance of your vehicle is never risk-free and that's something we are quite transparent about.
Inherently Dangerous & not Risk Free are not the same thing.
You know, it's pretty tiresome that every time someone mentions modifying their car that you feel the need to jump in and rag on the owner and companies who offer the products without providing any constructive technical information to support your opinion. It's like when someone talks about some wheels or visual modifications and gets run up one side and down the other because other owners don't share their taste. If you don't like tuning and don't want to take any risk, that's great. It's not for everyone. It's your car and you're entitled to do what you would like with it. Just the same as other owners can take educated risks with their vehicles which they own.
We're not snake oil salesmen. We don't lie to people or obfuscate the risks of tuning, including those to warranty coverage.
I simply try to post my experience (FIRST HAND) for the posters asking questions, and there are usually a few that ALWAYS have an opposing view!
Also...I must be the ONLY person on this forum, or that owns a Jaguar that did not major in Auto Engineering in Undergrad or Graduate school...because most that have an opposing view can back it up with their Engineering prowess...Haha
Take care...and keep the upgrades coming....I think there are enough of us on here that actually drive the cars and take a few risks with upgrades...
DC
#9
03-29-2021, 07:08 PM
Veteran Member
If it is totally false, why don't you offer drivetrain warranty matching OEM warranty with your transmission tunes? I left your advertisement thread alone, but would be happy to continue where we left off.
You know, it is pretty tiresome that every time someone post technical details, you threaten to sue them. So no, I am not going to go past stating my outside-view opinion of your products and your company.
Last edited by SinF; 03-29-2021 at 07:20 PM.
#10
03-29-2021, 07:15 PM
Sponsor
If you send us the car for a full & complete inspection we're happy to cover any loss of OEM warranty, if there's any damage as a result of tuning. Since we deal with 1000's of people all over the world and don't know the condition, mileage or provenance of each one of those vehicles we cannot extend that universally. We would not warranty an engine/drivetrain beyond what the OEM considered its normal warranty period.
__________________
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
#11
03-29-2021, 07:21 PM
Sponsor
It is one thing to sell tunes to people willing to take risks by taking their cars past recommended specs. It is another thing to deny the very obvious - your transmission tune will lead to premature wear, clutch disk failures and differential failures.
If it is totally false, why don't you offer drivetrain warranty matching OEM warranty with your transmission tunes? I left your advertisement thread alone, but would be happy to continue where we left off.
If it is totally false, why don't you offer drivetrain warranty matching OEM warranty with your transmission tunes? I left your advertisement thread alone, but would be happy to continue where we left off.
__________________
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
#12
03-29-2021, 07:28 PM
Sponsor
I'm struggling to respond here at the rate you're editing your posts but I'll try....
Who is denying this? We always tell people that tuning & modifications can lead to increased wear rates on components?
You're welcome to speculate on that but you're just throwing spitballs. Again, we're up front about the risks of tuning, you're concluding, on your own, that any modifications are going to wreck parts left right & center. So If I tune my V8S up to SVR 575BHP calibration that somehow is going to destroy my car? It doesn't work like that.
Charles?
You're welcome to speculate on that but you're just throwing spitballs. Again, we're up front about the risks of tuning, you're concluding, on your own, that any modifications are going to wreck parts left right & center. So If I tune my V8S up to SVR 575BHP calibration that somehow is going to destroy my car? It doesn't work like that.
__________________
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
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(BMW)Doctor (03-30-2024)
#13
03-29-2021, 07:50 PM
Veteran Member
What I read from the information that you posted, and only that, is that you changed shift points and reduced shift times in your tune. You didn't post this, but I also speculate that you increased torque limits and removed shift delays. You could have also changed parameters for locking. These are common tuning techniques used by other tuners and are in no way a proprietary know-how, so it is appropriate to discuss these technique in a generic tuning application. All of the above will put substantial wear and tear on gearing and clutches within transmission, reducing its life. It would also put additional stress on differentials, specifically a weak point in F-types. Specifically in case of clutches, if transmission shifts too rapidly it could induce slippage, and just like with a manual transmission this leads to excessive wear every time transmission shifts.
#14
03-29-2021, 08:39 PM
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These ZF 8HP 70s are used in all of these cars:
BMW 7 Series (F01/F02), BMW X5 50i (E70), BMW 5 series (F10/11), BMW 3 Series (F30) 330d and 335d, Dodge Durango V8, Iveco Daily, Jaguar F-Type (V6 and V8), Jaguar XE 35t, Jeep Grand Cherokee 5.7L 8-cyl Engine Code [T] EZH (2014 -), Jeep Grand Cherokee 6.4L 8-cyl Engine Code [J] ESG (2014 -), Jeep Grand Cherokee V8, Grand Cherokee EcoDiesel (2014-2016), Ram 1500 V6, V8, & diesel, Range Rover Sport (2012), Rolls-Royce Phantom, Maserati Quattroporte (2013–), Dodge Charger V8 (2015-), Volkswagen Amarok V6 TDI 550, Dodge Challenger V8 (2015-), Aston Martin Vanquish (2015), Aston Martin Rapide S (2015),[18] Alpina B3 (F30/31), Alpina B4 (F32/33), Great Wall Haval H9
No way they all use the same shift strategy in every one of them... In fact if you do some research, that is one of the reasons these transmissions are in so many cars (among other reasons, like fuel economy, engineering, and size). They allow the automakers a ton of flexibility in which shift strategy to use for their application.
BMW 7 Series (F01/F02), BMW X5 50i (E70), BMW 5 series (F10/11), BMW 3 Series (F30) 330d and 335d, Dodge Durango V8, Iveco Daily, Jaguar F-Type (V6 and V8), Jaguar XE 35t, Jeep Grand Cherokee 5.7L 8-cyl Engine Code [T] EZH (2014 -), Jeep Grand Cherokee 6.4L 8-cyl Engine Code [J] ESG (2014 -), Jeep Grand Cherokee V8, Grand Cherokee EcoDiesel (2014-2016), Ram 1500 V6, V8, & diesel, Range Rover Sport (2012), Rolls-Royce Phantom, Maserati Quattroporte (2013–), Dodge Charger V8 (2015-), Volkswagen Amarok V6 TDI 550, Dodge Challenger V8 (2015-), Aston Martin Vanquish (2015), Aston Martin Rapide S (2015),[18] Alpina B3 (F30/31), Alpina B4 (F32/33), Great Wall Haval H9
No way they all use the same shift strategy in every one of them... In fact if you do some research, that is one of the reasons these transmissions are in so many cars (among other reasons, like fuel economy, engineering, and size). They allow the automakers a ton of flexibility in which shift strategy to use for their application.
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(BMW)Doctor (03-30-2024)
#15
03-30-2021, 09:45 AM
Sponsor
What I read from the information that you posted, and only that, is that you changed shift points and reduced shift times in your tune. You didn't post this, but I also speculate that you increased torque limits and removed shift delays. You could have also changed parameters for locking. These are common tuning techniques used by other tuners and are in no way a proprietary know-how, so it is appropriate to discuss these technique in a generic tuning application. All of the above will put substantial wear and tear on gearing and clutches within transmission, reducing its life. It would also put additional stress on differentials, specifically a weak point in F-types. Specifically in case of clutches, if transmission shifts too rapidly it could induce slippage, and just like with a manual transmission this leads to excessive wear every time transmission shifts.
__________________
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
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#16
03-30-2021, 11:17 AM
Veteran Member
Stuart, I poorly chose my words. When I said "transmission tunes are inherently dangerous" I did not intended to create impression that otherwise working transmission would immediately grenade after applying a tune. I should have said "that are risk associated with a tune". I also shouldn't have said "both", as my intent was to speak generically about tunes, not about VAP tune specifically.
#17
03-30-2021, 11:42 AM
Senior Member
Perhaps, I haven't been around long enough, but I don't recall seeing any auto transmission failure posts on this board, tuned or not. My impression is that the ZF8 has a reputation as being bulletproof. Of course some fail but this particular transmission seems to be one of the least failure prone components on the car. When the end comes for most F-types, what remains will be a melted aluminum exoskeleton, the roaches, and the ZF8.
However, the point regarding the differential failing downstream is well taken.
However, the point regarding the differential failing downstream is well taken.
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#18
03-30-2021, 12:32 PM
Sponsor
Stuart, I poorly chose my words. When I said "transmission tunes are inherently dangerous" I did not intended to create impression that otherwise working transmission would immediately grenade after applying a tune. I should have said "that are risk associated with a tune". I also shouldn't have said "both", as my intent was to speak generically about tunes, not about VAP tune specifically.
__________________
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
#19
03-30-2021, 12:34 PM
Sponsor
Perhaps, I haven't been around long enough, but I don't recall seeing any auto transmission failure posts on this board, tuned or not. My impression is that the ZF8 has a reputation as being bulletproof. Of course some fail but this particular transmission seems to be one of the least failure prone components on the car. When the end comes for most F-types, what remains will be a melted aluminum exoskeleton, the roaches, and the ZF8.
However, the point regarding the differential failing downstream is well taken.
However, the point regarding the differential failing downstream is well taken.
__________________
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
Stuart Dickinson
Managing Director
VelocityAP Industries Ltd.
O: (1)250-485-5126
E: Stuart@VelocityAP.com
www.velocityap.com
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#20
11-04-2021, 04:18 PM
Junior Member
I am of the understanding that operating the clutch packs more quickly, actually producers less heat and less wear.?. I think of it like the brakes when locked up, don’t get hot and when they are not applied, they don’t get hot. Electronics use this idea when variable power needs to be delivered to say an electric motor, when variable speed is required. Its called pulse width modulation(PWM). Also used in switch mode power supply’s (SMPS). Voltage regulators to replace linear regulators, which get hot, I could go on!
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(BMW)Doctor (03-30-2024)