- 1,325
- In the gravel trap
- RDAardvark
GT5 Tuner: A QuickTune and Setup Recorder for Android
- Thread starter RDAardvark
- 462 comments
- 74,420 views
- Status
- 864
- NorCal
- oppositelock27
What does everyone think of the revised formulas? Any particular cars that you feel don't respond well to the recommended settings? Is the gear ratio function easy to use? Remember, we can't fix it without your feedback! 
- 1,325
- In the gravel trap
- RDAardvark
If you are running android 2.1, then the app will not work on your phone.
The current build needs android 2.2 or greater.
Sorry about that: The original post did state that you needed 2.1 and indeed the original version did work on this platform but later revisions required the upgrade. I've updated the OP now and can only apologise for the mistake.
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- 1,325
- In the gravel trap
- RDAardvark
- 275
- Denmark
- MikaelK_70 / GTP_MikaelK
Not sure if it is a new bug, arrived in latest version, or just not discovered/noticed before...
But the 'parts'-screen doesn't seem to be saved with the car... at least it doesn't load again on loading a saved car...
Is it just on my device, or can anyone else verify this behavior?
Another bug, related to the 'rename tune'-feature...
When NOT selecting to delete the old tune, and save using the same name, it will now add another instance of that tune.... this is visible when selecting to load tunes.... here you get several versions with identical names...
And when deleting one of those 'doubled' tunes, it deletes all with same name..
And a small detail about 'Top Speed' in 'Transmission'-page..
Can you raise the maximum value to 599 (current limit is 350), as 'we', the metric ppl, think 350 km/h is a bit slow
But the 'parts'-screen doesn't seem to be saved with the car... at least it doesn't load again on loading a saved car...
Is it just on my device, or can anyone else verify this behavior?
Another bug, related to the 'rename tune'-feature...
When NOT selecting to delete the old tune, and save using the same name, it will now add another instance of that tune.... this is visible when selecting to load tunes.... here you get several versions with identical names...
And when deleting one of those 'doubled' tunes, it deletes all with same name..
And a small detail about 'Top Speed' in 'Transmission'-page..
Can you raise the maximum value to 599 (current limit is 350), as 'we', the metric ppl, think 350 km/h is a bit slow
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- 1,325
- In the gravel trap
- RDAardvark
You are correct! Unfortunately there is a mistake in my code. It is easily corrected and I will do this and test before releasing an updated version.
Again, you are correct: I have managed to confuse myself with the logic and my so called quick win turns out wrong. I apologise that you have lost data from this error and hope this isn't too painful.
And a small detail about 'Top Speed' in 'Transmission'-page..
Can you raise the maximum value to 599 (current limit is 350), as 'we', the metric ppl, think 350 km/h is a bit slow
A complete oversight by me! I'll fix this in the next update.
Many thanks for your feedback and your patience. I should have an update for you by Monday.
- 69
- Sintra
- HugoVaz
Hi, I need the old version that works with the android 2.1, i have lots of tunes saved in my SD card, thanks.
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- 1,325
- In the gravel trap
- RDAardvark
Version 0.79.23b is now available
This update fixes the issues found by MikaelK:
1. The Parts screen wasn't showing saved data.
2. When saving a tune with the same name and leaving the Delete old Tune option unchecked, multiple tunes with the same name would be created.
3. The max speed on the Transmission screen didn't account for those using kp/h. Max value is now 799
I've also revised the code so that once again it will work on Android 2.1. It works ok on my Android 2.3.3 phone and in emulation of 2.1 and 2.2.
Please let me know if the app does or doesn't work for you.
There's been a distinct lack of feedback recently, except from a select few whom I thank for this.
Does the app make it easy and logical to enter data into?
Is the data generated by the Quick Tune function accurate?
Is the gear generator useful?
What do you not like about the app?
Your feedback is important as it lets me know you are using the app.
This update fixes the issues found by MikaelK:
1. The Parts screen wasn't showing saved data.
2. When saving a tune with the same name and leaving the Delete old Tune option unchecked, multiple tunes with the same name would be created.
3. The max speed on the Transmission screen didn't account for those using kp/h. Max value is now 799
I've also revised the code so that once again it will work on Android 2.1. It works ok on my Android 2.3.3 phone and in emulation of 2.1 and 2.2.
Please let me know if the app does or doesn't work for you.
There's been a distinct lack of feedback recently, except from a select few whom I thank for this.
Does the app make it easy and logical to enter data into?
Is the data generated by the Quick Tune function accurate?
Is the gear generator useful?
What do you not like about the app?
Your feedback is important as it lets me know you are using the app.
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- 275
- Denmark
- MikaelK_70 / GTP_MikaelK
A little feedback to you both: 👍
About ease and logic for entering data..:
The 'Parts'-page: after adding parts for a couple of my cars, I have found the order in which they are listed in GT5 Tuner to a bit backward... In my opinion the order of grouping should follow the order that are used in the game.. Still starting with weight-reduction, but then engine-tuning, intake, exhaust, turbo, transmission, drivetrain and finally suspension...
First said, I am NOT good at setting up cars, nor to feel/identify the small 'issues' with a given setup. This is why your QuickTune come in very handy to me..
By using QT, the cars (that I have used it on) do gets a nice neutral, balanced and predictable handling. To be honest, I haven't been able find much difference in handling between v1, v2 or v3 of the QT-formulas.
However, on one particular car, the ver2/3 had a rather big difference on brake-balance compared to ver1..
The car is a maxed out Ferrari Enzo '02, used for La Sarthe-grinding.
Driving with all aids off (including ABS), the standard brake-balance of 5/5 will make the car driving backwards on the slightest need of braking. The QT version 1 suggested BB 8/2 (front/rear) which provided a nice controllable car during braking... QT ver2 and ver3 both came up with BB 6/4 which still get the rear-end to lock up too soon...
Only other different between v1 and v2/3 was slightly higher LSD-numbers (effect not noticeable to me... see above disclaimer about abilities in tuning)
Btw.: How should one imply the use of added downforce-parts to the QT? Wouldn't it have an influence on the numbers delivered by the formulas?
About the gear-calculator, I haven't got around to use it yet, or just to read about the supposed theory behind it... (eg. why don't I have to tell the calculator about power-band and rpm for peak tourqe??)
About ease and logic for entering data..:
The 'Parts'-page: after adding parts for a couple of my cars, I have found the order in which they are listed in GT5 Tuner to a bit backward... In my opinion the order of grouping should follow the order that are used in the game.. Still starting with weight-reduction, but then engine-tuning, intake, exhaust, turbo, transmission, drivetrain and finally suspension...
What does everyone think of the revised formulas? Any particular cars that you feel don't respond well to the recommended settings? Is the gear ratio function easy to use? Remember, we can't fix it without your feedback!
First said, I am NOT good at setting up cars, nor to feel/identify the small 'issues' with a given setup. This is why your QuickTune come in very handy to me..
By using QT, the cars (that I have used it on) do gets a nice neutral, balanced and predictable handling. To be honest, I haven't been able find much difference in handling between v1, v2 or v3 of the QT-formulas.
However, on one particular car, the ver2/3 had a rather big difference on brake-balance compared to ver1..
The car is a maxed out Ferrari Enzo '02, used for La Sarthe-grinding.
Driving with all aids off (including ABS), the standard brake-balance of 5/5 will make the car driving backwards on the slightest need of braking. The QT version 1 suggested BB 8/2 (front/rear) which provided a nice controllable car during braking... QT ver2 and ver3 both came up with BB 6/4 which still get the rear-end to lock up too soon...
Only other different between v1 and v2/3 was slightly higher LSD-numbers (effect not noticeable to me... see above disclaimer about abilities in tuning)
Btw.: How should one imply the use of added downforce-parts to the QT? Wouldn't it have an influence on the numbers delivered by the formulas?
About the gear-calculator, I haven't got around to use it yet, or just to read about the supposed theory behind it... (eg. why don't I have to tell the calculator about power-band and rpm for peak tourqe??)
- 159
- Australia
- wendydave
RD, As MichaelK the order for the added parts would flow much better when inputting if the followed GT5's order.
Version 3 tunes seem to work nicely on some vehicles, not all (noob on tuning cars) when compared to dedicated tunes found on here. I guess that comes down personal preference and feel (I understand these are a base to work from, but oh well lol).
Will be looking into the gearing side of things throughout the week and checking my lap times and general feel (just got an RZ from the UCD and its getting the treatment around deep forest), but first I'll read up and try to gain an understanding of the fields required for input, as i'm an enthusiast, but a gear head i'm not lol
Version 3 tunes seem to work nicely on some vehicles, not all (noob on tuning cars) when compared to dedicated tunes found on here. I guess that comes down personal preference and feel (I understand these are a base to work from, but oh well lol).
Will be looking into the gearing side of things throughout the week and checking my lap times and general feel (just got an RZ from the UCD and its getting the treatment around deep forest), but first I'll read up and try to gain an understanding of the fields required for input, as i'm an enthusiast, but a gear head i'm not lol
- 864
- NorCal
- oppositelock27
QT was created using ABS at 1, as this is how I drive and I assume most users will. Since version 1 didn't have weight distribution to work with it was more forward biased than necessary in order to cover the worst offenders as far as trail braking oversteer. I haven't really experimented much with ABS off, but I think using a negative brake balance setting will effectively compensate for this. Try -2 and see if that fixes it. When I get a chance I'll do some testing and see if I can come up with a better suggestion.
Factoring downforce directly into the suspension formulas would be extremely difficult. The biggest effect of aerodynamics on handling balance is increased high speed understeer as a result of typically having more downforce in rear than in front. I think the balance fine tune function covers this issue well enough.
I've taken what I think is a very effective shortcut versus forcing the user to enter a laundry list of data points. Very simply, we compare peak HP versus peak torque, that's it. If we have an engine with 400 HP and 200 lb-ft, it's pretty safe to assume that this a high revving engine with a narrow powerband, and we end up with a close ratio gearbox. If we have 200 HP and 400 lb-ft then this is probably a low revving diesel with a stump-pulling torque curve, and we end up with a suitable wide ratio box. Seems to work fairly well, and if you find a case where it doesn't there's always the spread adjustment.
Thanks for the questions! 👍
- 1,325
- In the gravel trap
- RDAardvark
A little feedback to you both: 👍
About ease and logic for entering data..:
The 'Parts'-page: after adding parts for a couple of my cars, I have found the order in which they are listed in GT5 Tuner to a bit backward... In my opinion the order of grouping should follow the order that are used in the game.. Still starting with weight-reduction, but then engine-tuning, intake, exhaust, turbo, transmission, drivetrain and finally suspension...
Thanks to both of you for this feedback: I'll rearrange the components and get a new release out.
I've only been driving the one car recently so I've not had much chance myself to try out the new Quick Tune v3 tunes. What I do need checking is that the figures output by the app match up to those output by oppositelock's spreadsheet. I've done a fair bit of testing on this but there is always the likelihood of a mistake creeping in - The calculations are quite complex and translating them to java code leaves scope for rounding errors and the odd + where there should be a -! So if you spot anything, please do let me know.
Likewise with the gear calculator. There's a lot there and there are no instructions in the app as yet so do let me know how you find it. I've tried it out on a couple of cars and it does make a difference. You may have to adjust first a bit afterwards to get the car off the line a bt faster. I also found that it was best to reset the gearbox to default before trying to enter the generated gears. Using the scale was also vital on one car as the generated gearings just would not fit in the permitted ranges of the car in question.
Once again thanks for the feedback and don't be afraid to pick fault: I use this app quite a lot myself and want to get it near as perfect as I can.
- 275
- Denmark
- MikaelK_70 / GTP_MikaelK
@ oppositelock:
Thank you for explaining the method behind the gear-calculator.
Of course there will always be a trade-off when choosing between simplicity and accuracy.
I will find time to try it on a couple of my favourite cars, to see if it fits my liking.. 👍
And with the info on QT brake-calculation designed for ABS=1 the values do makes sense... Then I will just use the brake-values from QT as a startingpoint and make my own adjustment from there to get my desired balance...
Luckily brake-balance are one of the easier step in tuning
@ RDAardvark:
I will be looking forward to the update as always..!
And I might try downloading oppositelock's tool, and using both on the same cars, just to 'doublecheck' the values given by GT5 Tuner.
Keep it up, guys!
Great work you're doing..!
Thank you for explaining the method behind the gear-calculator.
Of course there will always be a trade-off when choosing between simplicity and accuracy.
I will find time to try it on a couple of my favourite cars, to see if it fits my liking.. 👍
And with the info on QT brake-calculation designed for ABS=1 the values do makes sense... Then I will just use the brake-values from QT as a startingpoint and make my own adjustment from there to get my desired balance...
Luckily brake-balance are one of the easier step in tuning
@ RDAardvark:
I will be looking forward to the update as always..!
And I might try downloading oppositelock's tool, and using both on the same cars, just to 'doublecheck' the values given by GT5 Tuner.
Keep it up, guys!
Great work you're doing..!
- 1,325
- In the gravel trap
- RDAardvark
With the upcoming Functionality Update 2.0, a big chunk of this app will become redundant as you will be able to record your tunes in the game.
The update also includes "Improved car physics simulation": There have been many speculating what this actually means but at worst it could mean that oppositelock's Quick Tune calculations become ineffective.
Guess we'll just have to wait and see.
The update also includes "Improved car physics simulation": There have been many speculating what this actually means but at worst it could mean that oppositelock's Quick Tune calculations become ineffective.
Guess we'll just have to wait and see.
- 864
- NorCal
- oppositelock27
We will definately have to wait and see as far as the new physics go. However, since most of the calculations are primarily based on real life theory as opposed to reverse engineered from the game itself, I'm fairly confident most of it will remain intact. The "backwards" ride height formulas are the only thing that I feel really flies in the face of generally accepted wisdom, so this will have to be reversed if corrected. I would also be able to eliminate the invert roll resistance feature in that scenario. Other than that, any changes should be relatively minor.
- 1,325
- In the gravel trap
- RDAardvark
Now I've only tested a couple of cars, but Quick Tune seems to work just fine with the Spec II physics.
I'm not convinced with the settings sheets in the game: GT5 is the first version of the series that I've played and I find three setups is a bit limited. This app may have some life left in it after all!
I'm not convinced with the settings sheets in the game: GT5 is the first version of the series that I've played and I find three setups is a bit limited. This app may have some life left in it after all!
- 1,325
- In the gravel trap
- RDAardvark
Sorry, but the app is locked, as MikaelK says, to portrait mode: It is simply too complex to cater for both portrait and horizontal layouts. A quick google for your phone shows that it has a horizontal screen with the keyboard under it which, unless the screen is touchscreen, would make using the app very awkward.
Ok, i c，my phone also hv touchscreen， Just run the application direction reversed，thz u reply
- 1,325
- In the gravel trap
- RDAardvark
I've been working on some minor revisions to the app and noticed that on the 'Tune' screen, the ride height can be adjusted by 0.1 increments. Quick tune only generates integer values so i'm not sure why this is the way it is.
- 275
- Denmark
- MikaelK_70 / GTP_MikaelK
I do concur about the limitations in 'only' 3 sheets in GT5..
And I still see a solid need to record your tunes outside of GT5, if nothing else then for export to use in another GT5-account and/or for backup
- 159
- Australia
- wendydave
Of course there's a need for this Rdr. How often we acquire new cars and the need to track back and forth between pc and behind the wheel is enough reason for me LOL. As you have already noted vers 3 seems to work fine in all cars at the moment (80's and 90's japenese are burning a hole in my disc right now sooo much to choose from).
- 1,325
- In the gravel trap
- RDAardvark
@kebabs and MikaelK
Thanks for the feedback and encouragement.
I've been kind of disappointed by the lack of comments on the app and have been thinking of dropping it, but I'll keep it going for now.
There were a few wee things in the app that I personally wanted to control: To set a default Quick Tune version; Use decimals in the 'Suspension Level' of the Quick Tune calculations. I also wanted to be able to clear the tune screen but to set the minimum values possible rather than all zeroes.
I have been working on these features and also tidying up. I've not even thought yet about adding the aerodynamics settings to the quick tune but I'll see what I can do.
So, if there is anything else that you can think of that needs tidying up, rewording, reformatting or generally changed, please let me know.
Thanks for the feedback and encouragement.
I've been kind of disappointed by the lack of comments on the app and have been thinking of dropping it, but I'll keep it going for now.
There were a few wee things in the app that I personally wanted to control: To set a default Quick Tune version; Use decimals in the 'Suspension Level' of the Quick Tune calculations. I also wanted to be able to clear the tune screen but to set the minimum values possible rather than all zeroes.
I have been working on these features and also tidying up. I've not even thought yet about adding the aerodynamics settings to the quick tune but I'll see what I can do.
So, if there is anything else that you can think of that needs tidying up, rewording, reformatting or generally changed, please let me know.
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