 Re: launch control for drag racing |
| I tried the launch control only the one time out and it was
sluggish out of the hole and disabled it so I could race that day and I have never tried it again
As far as the clutch switch engagement being a little sort thought about trying to build up the clutch lever tab with weld or epoxy and then shape it until i got the correct engagement point.
Have you tried the launch control and had any success?
I use launch control regularly on cars and use it as a guard rpm on bikes.
First of all you would usually set the clutch switch to click off the in stage 2 step mode into launch mode at the point when the clutch just engages. You can set this by putting the bike on the paddock stand in first gear pull the clutch in and turn the rear wheel just as it starts to go 'stiff' the switch should go off, you need to be able to adjust this point for it to work well.
Once the clutch is starting to drive you usually 'hold' the guard rpm until the clutch has stopped slipping using a timer, you can use wheel speed but only if the wheel speed is from the undriven wheel otherwise if you spin the rpm ramp will start and the wheelspin will get worse not stop or be held.
I've asked in another thread what does what and if the speed ramp start can be over ridden by a delay for this reason.
In essence launch control will not make you quicker off the line in its own right. This is because the main thing putting power to the track is the clutch. Launch control 'assists' when the clutch is 'shallow staged' this is when you don't feed enough clutch in the rpm goes up, and with no launch control rpm guard, heat goes into the clutch quickly and it transfers power very quickly and you do those bunny hop wheelies, where it slips and then grips hard. If you shallow stage the clutch and put it into the launch limiter you will be mechanically holding the power off the rear wheel.
Key to a good launch is to get the clutch deep into its slide point, which will feel slightly alien especially on a short wheelbase sports bike where you may feel slightly apprehensive.
Its worthwhile considering having a partial throttle on whilst on the initial 2 step phase then slide the clutch out but hold the throttle still. This way you can have a set level of power hitting the clutch and move it higher or lower depending on the out come.
Ultimately great launches can only be achieved with a well setup or designed clutch actuator mechanism. Clutches with pressure applied electronically or centrafugally are the really best. |
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| Re: launch control for drag racing |
| I tried the launch control only the one time out and it was
sluggish out of the hole and disabled it so I could race that day and I have never tried it again
As far as the clutch switch engagement being a little sort thought about trying to build up the clutch lever tab with weld or epoxy and then shape it until i got the correct engagement point.
Have you tried the launch control and had any success? |
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| Re: launch control for drag racing |
| Hello.
i have a question
i saw this video in youtube
https://www.youtube.com/watch?v=9ygp_x_7nfo
and want to know, is there option to do the same launch control on zzr1400 06-07? there are also a launch light, but in the woolichracing software there is no option to set it up
Thanks!
Hi, we have not released the Race Tools for the 06/07 ZZR1400, we may do in the future, but we have no immediate plans to develop it.
regards
Woolich Racing |
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| Re: launch control for drag racing |
| I plan on trying the launch control at our next test and tune. Does anyone have any suggestions for a stock wheelbase gen 2 Hayabusa without a wheel speed input?
Here is some info from my last log file
Stage rpm was about 4500
During the launch it flashed as high as 8000 with the clutch completely engaged at 6000. This the took 1.376 seconds per the log file from when the clutch switch was open
Max rpm in 1st gear was 10800 at 3.176 seconds.
So do I set the max rpm at 11k with the ramp time 3176 and then shorten from there?
Do i try and use the launch rpm to control the rpm during the time sliding the clutch or only to stage?
Thanks for any input
Hi, the ramp starts when the clutch switch indicates the clutch is out, so based on your data you should set the ramp time to 1.4 seconds and adjust shorter from there.
Yes you should set Map Ramp RPM as 11,000
You can try some different things for the launch RPM, some guys who set the launch RPM low only hold it for a short time, other with a higher Launch RPM hold the RPM longer while slipping the clutch on launch. Best thing to do is see what works for you, and use the logged data to make adjustments. |
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| Re: launch control for drag racing |
| I plan on trying the launch control at our next test and tune. Does anyone have any suggestions for a stock wheelbase gen 2 Hayabusa without a wheel speed input?
Here is some info from my last log file
Stage rpm was about 4500
During the launch it flashed as high as 8000 with the clutch completely engaged at 6000. This the took 1.376 seconds per the log file from when the clutch switch was open
Max rpm in 1st gear was 10800 at 3.176 seconds.
So do I set the max rpm at 11k with the ramp time 3176 and then shorten from there?
Do i try and use the launch rpm to control the rpm during the time sliding the clutch or only to stage?
Thanks for any input
Hi
How did you modify your clutch switch to work as the actuall button needs to become longer somehow? |
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| Re: launch control for drag racing |
| Hello.
i have a question
i saw this video in youtube
https://www.youtube.com/watch?v=9ygp_x_7nfo
and want to know, is there option to do the same launch control on zzr1400 06-07? there are also a launch light, but in the woolichracing software there is no option to set it up
Thanks! |
| |
| Re: launch control for drag racing |
| I plan on trying the launch control at our next test and tune. Does anyone have any suggestions for a stock wheelbase gen 2 Hayabusa without a wheel speed input?
Here is some info from my last log file
Stage rpm was about 4500
During the launch it flashed as high as 8000 with the clutch completely engaged at 6000. This the took 1.376 seconds per the log file from when the clutch switch was open
Max rpm in 1st gear was 10800 at 3.176 seconds.
So do I set the max rpm at 11k with the ramp time 3176 and then shorten from there?
Do i try and use the launch rpm to control the rpm during the time sliding the clutch or only to stage?
Thanks for any input |
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| Re: launch control for drag racing |
| There were some minor changes to code flow and logic, no change in functionality, just a minor revision. |
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| Re: launch control for drag racing |
| what are the changes in 1.0.4 race tools for Suzuki? |
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| Re: launch control for drag racing |
| No major changes in v1.0.3, just some minor code changes to standardize race tools across the suzuki models. |
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| Re: launch control for drag racing |
what changes are in 1.0.3????   |
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| Re: launch control for drag racing |
thank you for your quick answer  |
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| Re: launch control for drag racing |
| Hi, v1.0.2 should resolve 2 issues with Suzuki Race Tools
1) Ignition Kill for quickshifter was not working above 6000 rpm
2) Intermittent issue with engine cut when launch control was enabled |
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| Re: launch control for drag racing |
| hi
today i found new update to race tools laun ch control 1.0.2
1.0.0 did not work correct
1.0.1 not have a time to check it
end now is 1.0.2 what changes you make????
Woolich Racing Tuned - Software Release Notes
not updated from v 3.7.3 20/05/15 ??? |
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| Re: launch control for drag racing |
| No, we do not plan to use the pit speed limiter button as launch control enable, we have just released a new version of race tools for suzuki, can you please update to the latest version and test. If you are still having the issue after updating please send your bin file to us from within WRT "Tools"=>"Send Bin File to Woolich Racing" and open a support ticket: http://www.woolichracing.com/support/open.php |
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| Re: launch control for drag racing |
| ok
do is possible to make option i soft and use pit lane speed limiter button to turn on/off launch control???
make this option/box in launch control??? |
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| Re: launch control for drag racing |
| If we are talking about launch control we can not use this method to calculate bike speed. Can you send the bin file with the race tools issue by opening bin file in WRT then click "Tools"=>"Send Bin File to Woolich Racing"
Thanks |
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| Re: launch control for drag racing |
| Hi, the vehicle speed parameter is only available for models where we have access to the actual vehicle speed in the ECU, for the suzuki's the speed sensor goes directly into the speedo and is not directly available in the ECU. It would not work to use the gear and rpm if the clutch is in.
Is the problem that the engine is totally cut when the clutch is pulled in?
If you allow input of final gearing and wheel circumference in the settings, that would be better than nothing.
When clutch is in, it could be used the last speed recorded and set to zero when the gear go to neutral.
This would also improve the playback by allowing to show the bike speed. |
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| Re: launch control for drag racing |
| Yes |
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| Re: launch control for drag racing |
| Hi, the vehicle speed parameter is only available for models where we have access to the actual vehicle speed in the ECU, for the suzuki's the speed sensor goes directly into the speedo and is not directly available in the ECU. It would not work to use the gear and rpm if the clutch is in.
Is the problem that the engine is totally cut when the clutch is pulled in? |
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| Re: launch control for drag racing |
| hi
in gsxr1000 9-11 LC is working good but if you need to play with clutch on 1 gear and clutch on(carpark,drive slow behind car stop start ) engine ignition is off and engine is off , how to resolve this problem? for road legal bikes with LC?
extend launch time?
In the latest version there is a Ramp Start Vehicle Speed, so calculate the bike speed in 1st gear that corresponds to your launch RPM and set the Ramp Start Vehicle Speed to just below this value, this will ensure that the Launch Control Ramp will not start until you reach this speed which should correspond to you having the clutch fully disengaged.
(maybe kawasaki not suzuki) |
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| Re: launch control for drag racing |
| Hi, i have noticed you have also opened a support ticket for this problem, I think the issue may be specific to your bike/model so we will continue to work to fix the issue via the support ticket. |
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| Re: launch control for drag racing |
| Provided you have race tools available to you is just a matter of ticking the boxes and putting the details as above into the boxes. |
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| Re: launch control for drag racing |
| Can any body please explain haw to use launch control !
I need to set up two step limiter as well in bin file or only enable launch control box ?
I cant get to work!
Thanks |
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| Re: launch control for drag racing |
| Hi.
Yust purchase race tools for gsxr 1000 k9 ecu-47H00 , hawing some strange problems .
If is in neutral works fine and revs up normal. If is in gear soon as i tray to rev up engine shuts dawn.
And my new launch control don't wont to work.
If i flash ecu with old bin file is fine .
Don't no wot is problem .
Can u please help my national drag racing is already started . |
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| Re: launch control for drag racing |
| Just for the Australian drag racers I have found after reading the rule book, this is banned in mod bike under andra rules '' slew rate ignition control '' , prohibited under TRACTION CONTROL rules.
So I should have looked into it more, so all I can use this for is a 2 step. |
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| Re: launch control for drag racing |
| Yes sounds like that will be a good starting point! |
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| Re: launch control for drag racing |
| Great so my launch is 5500 rpm and that equals 42 kph so I have the ramp speed at 40kph. Now by the logs it takes between 1.2sec and 1.4 sec to get from the 42kph point and redline. So I guess I need the ramp about that? 1200ms
Thanks again for the help. |
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| Re: launch control for drag racing |
| In the latest version there is a Ramp Start Vehicle Speed, so calculate the bike speed in 1st gear that corresponds to your launch RPM and set the Ramp Start Vehicle Speed to just below this value, this will ensure that the Launch Control Ramp will not start until you reach this speed which should correspond to you having the clutch fully disengaged.
I would suggest you use less hold time, if you have the above set up correctly then you would only need 100ms
For setting the ramp time, i suggest that you start longer than what you think e.g. 2500ms, and log data with a log box to see what is going on, incrementally reduce the ramp time until you find the setting where you are getting the best launches without the launch control ramp intervening too much.
Review your data logs to see what is happening in your runs.
Hope this helps |
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| Re: launch control for drag racing |
| Depends on your gearing, power, your weight etc. Could be good, could be crap... Let us know how you get on. |
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| launch control for drag racing |
| So I have the launch control and I am after some ideas on how to set it up, here is what I am going to try.
2 step 5500rpm, 1000ms hold to allow me to get tge clutch out than 700ms ramp.
Any thoughts |
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