MGM Low Voltage Cut Off - Owners READ

[lutach]

I will have to think twice about send the 2 MGMs I have. I have the 8012, but that one is working good.

Well I ran my truck yesterday with the updated 22418 and my Neu 1521. There is a huge difference in power now! I knew that I was not getting all the power that this setup was capable of. Before the truck was impressive, now it is just plain ridiculous.

I don't think that everyone will notice as much of a gain. MGM had said that the issue was with large motors that pull a lot of current. I'm just guessing that a 1515 might be a bit more punchy, but anything over that will be quite a bit improved.

My run was cut short (I knew in my head that something was going to break!) when the threads that hold my shock tower to the FLM bulkless failed and the shock tower came loose after a poorly landed jump. I think the screws that come with the FLM are too short because they only seem to engage about 1/3 to 1/2 of the thread. I am sending my bulkless to FLM today and ordering some longer M4 screws. I can't wait to get this thing back out.

Another benefit of the new software on the MGM is that my motor ran super cool. Now that it is getting enough juice I am sure it is more effecient. I was hoping it would run cooler but I didn't know it would be that different. I ran the MGM software when I got back and sure enough the numbers were much improved from before. I don't have the saved screen infront of me with the exact numbers, but I can say that for the first time the data had a number for the "current at full throttle". Peak amps were up near 400 and max RPM was 37500ish. Before the upgrade the max RPM I would have after a run was in the 32000 - 33000 range.

All in all I would say that the upgrade was worth it. My controller was dead at the time anyway. There is the risk of loosing your controller in the mail if you do the $10 declared value thing. I think I would only send the controller in if I knew that I was missing power that I should have or I was running the controller in "cutoff" mode and the truck was constantly cutting off even with high quality lipos (due to the current cuttoff, not the low voltage lipo protection). Remember that my controller ran without cutting off in "reduce RPM" mode, it just performed poorly. In cutoff mode the truck was useless. I can't comment on the brakes, I use mechanical.


Shon

Realy good!! But in which mode do you run your controlller now?? Cut off or reduce RPM??

Originally Posted by david lamontagn

Realy good!! But in which mode do you run your controlller now?? Cut off or reduce RPM??

I'm running Reduce RPM. My truck is down for the moment but I am going to give cutoff a run on my next outing. I am quite sure that it isn't going to cutoff. Just looking at the data on the software I can see that the controller is allowing full throttle output, which it never had before. It will be a week or two before I get a replacement hybrid bulk from FLM though...

[lutach]

Originally Posted by BashOn

I'm running Reduce RPM. My truck is down for the moment but I am going to give cutoff a run on my next outing. I am quite sure that it isn't going to cutoff. Just looking at the data on the software I can see that the controller is allowing full throttle output, which it never had before. It will be a week or two before I get a replacement hybrid bulk from FLM though...

Could you also try using the controller's brake just to see if the issue on braking is gone?

Regards.

Originally Posted by lutach

Could you also try using the controller's brake just to see if the issue on braking is gone?

Regards.

My trans isn't locked so the motor brake won't work.

Is this something I could test just by seeing what the motor does when I use the motor brake? For example are you wanting me to see if it goes into reverse when I hit the brake?

[lutach]

Originally Posted by BashOn

My trans isn't locked so the motor brake won't work.

Is this something I could test just by seeing what the motor does when I use the motor brake? For example are you wanting me to see if it goes into reverse when I hit the brake?

The issue that I have when my controller is set for forward/brake only is when I apply the brake instead of braking it throttles up. The more throttle I give the stronger the throttle up is when I try to apply the brakes. It does this as well when forward/brake/reverse parameters are programmed too. I don't want you to break anything though.

OK thank you.
My MBX5T is almost done, just the RCM batterie tray spacer to instal and get some good Velcro to secure the MGM to the custom mount that i've did, and i'll be ready for a first li-po cherge!

I just recieve my MGM 16018 with the new SW, so i'll reprogram all my End point and i'll try it in reduce rpm too.
For the brake, same thing for me, i've install mechanical brake on my truggy.