GM Brushless
#2311
Also does anyone know if mode 3 on the 2009 120 running firmware 8 is ok for running an X11 5.5. And further to that, running this setup outdoors on a massive track, how would you gear it? I have it at 7.5 at the moment but haven't run it yet so want to get it right before I do. This is all old gear cos I'm making a wet car for the ourdoor season. Cheers in advance guys
#2312
One of your sensors is down
It will run sensorless
It will run sensorless
#2313
#2314
Tech Regular
Hi,
I've been running my GM75 with GM13.5t (1300g) for a while now and it's been great it has stalled once though. I've always ran just the 'High Speed timing' Resrved 4-1 does anybody use the 'High Speed Timing from switching point rpm' Reserved 4-3 ?
Will it drive alot different, does it run the motor cooler ? basically what will it do and how will it feel ?
Thanks.
I've been running my GM75 with GM13.5t (1300g) for a while now and it's been great it has stalled once though. I've always ran just the 'High Speed timing' Resrved 4-1 does anybody use the 'High Speed Timing from switching point rpm' Reserved 4-3 ?
Will it drive alot different, does it run the motor cooler ? basically what will it do and how will it feel ?
Thanks.
#2315
Tech Initiate
mamba motor and gm esc
hello, does someone know if the mamba motors, (5700) have problem running with gm 2010 esc? and them performance how are compared to the gm pro motors? novak ballistic are as fast too with gm esc as with the kinetic esc?
thanks and regards
andrea
thanks and regards
andrea
#2316
Tech Adept
Mode 9 is a more aggressive setting than 8 sensored or sensorless so one of the profiles has probably been modified. The lights will also work in the same way in all modes, so if you're not getting all three lights its still going to switch to sensorless.
You could just try and spin it up without any sensor cable in mode 8 and see if its still the same speed as it with the lead. If there is a difference between the two then that would suggest that the sensors are working in that mode. Then i would either factory reset the speedo as maybe a setting has been changed or dirty sensors aren't working because of more timing advance in mode 9. Clean the motor!
Just to add something you really don't want to be holding the motor at full throttle free reving. If timing kicks in you could trash bearings if a bit dry or damage the rotor.
#2317
If one light isn't coming on as hana said one of your sensors is out. That could be dirt on it in the motor, broke sensor, broken sensor wire(most probably) or a bent pin on the controller. And if the controller doesn't sense them in the right order it will automatically switch to sensorless mode.
Mode 9 is a more aggressive setting than 8 sensored or sensorless so one of the profiles has probably been modified. The lights will also work in the same way in all modes, so if you're not getting all three lights its still going to switch to sensorless.
You could just try and spin it up without any sensor cable in mode 8 and see if its still the same speed as it with the lead. If there is a difference between the two then that would suggest that the sensors are working in that mode. Then i would either factory reset the speedo as maybe a setting has been changed or dirty sensors aren't working because of more timing advance in mode 9. Clean the motor!
Just to add something you really don't want to be holding the motor at full throttle free reving. If timing kicks in you could trash bearings if a bit dry or damage the rotor.
Mode 9 is a more aggressive setting than 8 sensored or sensorless so one of the profiles has probably been modified. The lights will also work in the same way in all modes, so if you're not getting all three lights its still going to switch to sensorless.
You could just try and spin it up without any sensor cable in mode 8 and see if its still the same speed as it with the lead. If there is a difference between the two then that would suggest that the sensors are working in that mode. Then i would either factory reset the speedo as maybe a setting has been changed or dirty sensors aren't working because of more timing advance in mode 9. Clean the motor!
Just to add something you really don't want to be holding the motor at full throttle free reving. If timing kicks in you could trash bearings if a bit dry or damage the rotor.
It only goes to mode 8 as its a 2009 120, so that is the most aggressive profile there is. I only factory reset it just before I installed it in my wet car so no profiles have been altered.
I'm pretty satisfied that its just the LED thats down as it does everything it should do in terms of modes and runnning with and without the lead in, as in, it reacts as it should to any changes I make and it must be running sensored of the motor revs would be the same with or without the lead.
Cheers for the help with the lights showing up the sensors anyway, problem all sorted now.
#2318
Hi,
I've been running my GM75 with GM13.5t (1300g) for a while now and it's been great it has stalled once though. I've always ran just the 'High Speed timing' Resrved 4-1 does anybody use the 'High Speed Timing from switching point rpm' Reserved 4-3 ?
Will it drive alot different, does it run the motor cooler ? basically what will it do and how will it feel ?
Thanks.
I've been running my GM75 with GM13.5t (1300g) for a while now and it's been great it has stalled once though. I've always ran just the 'High Speed timing' Resrved 4-1 does anybody use the 'High Speed Timing from switching point rpm' Reserved 4-3 ?
Will it drive alot different, does it run the motor cooler ? basically what will it do and how will it feel ?
Thanks.
To minimise chance of stalling take the motor apart, clean it, and if possible put 1mm shims behind the sensor board and use spacers on the rotor to give a clearance of about 0.5mm. Having the rotor really close to the hall sensors helps to prevent miscommutation
#2319
Tech Master
You might want to be sure that the old ESC actually had 3 lights...........cos I don't think it did!!
My memory was that the 3 states of sensors was each light individually, and then both together.
If changing from profile 3 to 8 made it a lot faster, then i'd be confident that the sensors are working fine.
My memory was that the 3 states of sensors was each light individually, and then both together.
If changing from profile 3 to 8 made it a lot faster, then i'd be confident that the sensors are working fine.
#2320
Tech Rookie
Torque vs. timing
Hey all
I am going to race a really tight track in the weekend and thought about something.
Does the motor deliver more torque when i am below the switch point??? Then I guess it would be smart to have a high switchpoint for technical tracks, right??? Or am I just supposed to keep the switch point at 10.000 rpm? I am running super stock with 17.5 T.
I thought about it, because at another race I forgot my sensor cable for a final. The car was extremely fast out of the corners, but i reach top speed 1/3 down the straight. This could be because of a high gearing or because the speedo delivers more torque when it is in sensorless mode, I guess.
Another question. What sort of fixed timing are you guys using i 17,5. Currently I am running 30 and then gearing accordingly. Any one with other ideas???
Any help would be appreciated.
Søren
I am going to race a really tight track in the weekend and thought about something.
Does the motor deliver more torque when i am below the switch point??? Then I guess it would be smart to have a high switchpoint for technical tracks, right??? Or am I just supposed to keep the switch point at 10.000 rpm? I am running super stock with 17.5 T.
I thought about it, because at another race I forgot my sensor cable for a final. The car was extremely fast out of the corners, but i reach top speed 1/3 down the straight. This could be because of a high gearing or because the speedo delivers more torque when it is in sensorless mode, I guess.
Another question. What sort of fixed timing are you guys using i 17,5. Currently I am running 30 and then gearing accordingly. Any one with other ideas???
Any help would be appreciated.
Søren
#2321
Tech Adept
Hi I have just come back to the GM75 and was looking for some help
I have read this post from Martin -http://www.rctech.net/forum/7908081-post1851.html
But my 75 has 12.4 Firmware installed can anyone please point me in the direction of the firmware upgrader and in particular the instructions on how to flash the firmware correctly
Thanks for your help in advance :-)
I have read this post from Martin -http://www.rctech.net/forum/7908081-post1851.html
But my 75 has 12.4 Firmware installed can anyone please point me in the direction of the firmware upgrader and in particular the instructions on how to flash the firmware correctly
Thanks for your help in advance :-)
#2322
Tech Regular
Hi I have just come back to the GM75 and was looking for some help
I have read this post from Martin -http://www.rctech.net/forum/7908081-post1851.html
But my 75 has 12.4 Firmware installed can anyone please point me in the direction of the firmware upgrader and in particular the instructions on how to flash the firmware correctly
Thanks for your help in advance :-)
I have read this post from Martin -http://www.rctech.net/forum/7908081-post1851.html
But my 75 has 12.4 Firmware installed can anyone please point me in the direction of the firmware upgrader and in particular the instructions on how to flash the firmware correctly
Thanks for your help in advance :-)
you can get all the software and driver here http://www.racing-cars.com/pp/Produc...t/GM97163.html
#2323
Tech Adept
Hi,
you can get all the software and driver here http://www.racing-cars.com/pp/Produc...t/GM97163.html
you can get all the software and driver here http://www.racing-cars.com/pp/Produc...t/GM97163.html
#2324
Tech Master
It's a little unusual, ususally everything is within the zip file - however, for v13 doesn't seem it is.
However, it is part of the v13.1 download - so you may as well use that!!
http://www.gm-racing.de/rwdownload/index.php?dl=155
However, it is part of the v13.1 download - so you may as well use that!!
http://www.gm-racing.de/rwdownload/index.php?dl=155
#2325
Tech Regular
Download and install usb driver
Downolad and save V13 to your desktop
Download and run Software V1.6.3
Run the GM Genius Software updater (V1.6.3)
When this opens click browse and open the V13 file.
Plug usb into pc and speedo
Hold the button down on the speedo and click Program as soon as you click this press the button on the usb cable and release the button on the usb and then the button on the speedo, it should now say
'Start Firmware upgrade'
Did that help ?