Ko BMC Speedo
#1231
Tech Fanatic
iTrader: (22)
It's just like reving a real car's engine to redline while in neutral. All the power that the motor produces has no where to go, so it is applied to internal components of the engine. So on a brushless motor that is rev'd to it limit, it applies all the power to the rotor.
When the rotor explodes, I am sure the sensors don't read correctly. So the Speedo may fire poles in the wrong order. When that happens you could fire a single pole in both directions meaning +/- and -/+. Or the back end generated from a frozen rotor could be enough feedback to really damage the Speedo.
When the rotor explodes, I am sure the sensors don't read correctly. So the Speedo may fire poles in the wrong order. When that happens you could fire a single pole in both directions meaning +/- and -/+. Or the back end generated from a frozen rotor could be enough feedback to really damage the Speedo.
Had to push the car as the sensors would not register, was ok once moving bit got hot.
I do love this speedy though so smooth or can be made so aggresive.
#1232
Tech Champion
iTrader: (261)
You're used to dealing with OTHER esc mfr's if you're thinking a few weeks. Unless you sent it by pony express you'll probably know in a few days. KO has EXCELLENT turn-around, only gets delayed if Robert is on a trip to Japan for more product stuff or out at an event.
Scottrik
Scottrik
#1233
Tech Fanatic
iTrader: (50)
You're used to dealing with OTHER esc mfr's if you're thinking a few weeks. Unless you sent it by pony express you'll probably know in a few days. KO has EXCELLENT turn-around, only gets delayed if Robert is on a trip to Japan for more product stuff or out at an event.
Scottrik
Scottrik
#1234
Sorry if someone has already asked this but:
I have the Orion Race Spec version of this ESC and I had a few questions. Is the Orion version equal to the mod BMC esc or the 1.5 version? I ask this because I am going to be running in a 17.5 class and I want to figure out if there is a way to update my ESC so I can get the extra timing. Also, does this ESC have any form of boost? I need to choose between a super-stock and stock class Thanks for any help!
I have the Orion Race Spec version of this ESC and I had a few questions. Is the Orion version equal to the mod BMC esc or the 1.5 version? I ask this because I am going to be running in a 17.5 class and I want to figure out if there is a way to update my ESC so I can get the extra timing. Also, does this ESC have any form of boost? I need to choose between a super-stock and stock class Thanks for any help!
#1235
Sorry if someone has already asked this but:
I have the Orion Race Spec version of this ESC and I had a few questions. Is the Orion version equal to the mod BMC esc or the 1.5 version? I ask this because I am going to be running in a 17.5 class and I want to figure out if there is a way to update my ESC so I can get the extra timing. Also, does this ESC have any form of boost? I need to choose between a super-stock and stock class Thanks for any help!
I have the Orion Race Spec version of this ESC and I had a few questions. Is the Orion version equal to the mod BMC esc or the 1.5 version? I ask this because I am going to be running in a 17.5 class and I want to figure out if there is a way to update my ESC so I can get the extra timing. Also, does this ESC have any form of boost? I need to choose between a super-stock and stock class Thanks for any help!
#1236
So I'd need to send it in to KO for the new software? Thanks for the info So we have no form of boost on the ESC? I don't really understand what kind of timing you are talking about.. sorry, I normally just get an ESC and set it to a pre-made setting and then just worry about everything else so I'm fairly ignorant to their abilities..
#1237
So I'd need to send it in to KO for the new software? Thanks for the info So we have no form of boost on the ESC? I don't really understand what kind of timing you are talking about.. sorry, I normally just get an ESC and set it to a pre-made setting and then just worry about everything else so I'm fairly ignorant to their abilities..
Now for timing. The KO ESC will add timing to the Motor when you hit full throttle on the radio. The timing amount is not well communicated in the software so I don't know what the actual values in degrees are but the older BMC manager had 6 steps the newer one has 12. This variable can be adjusted without additional firmware if you already have v1.5 on the ESC.
Because this is not a dynamic form of timing it adds considerable heat to the motor, almost like advancing the physical timing on the endbell. It does make the motor spin faster, but is very inefficient in its operation so you get lots of heat.
Timing and boost are usually two ways of applying timing advance. Some of the newer controllers only do it one way and they call it boost. Others apply it two ways and call one timing advance or boost and the other turbo. So lets start with the basics. These ESC's allow you to choose and RPM range that you can apply a certain amount of dynamic timing advance. You then can select the number of degrees you want to advance and it will apply the timing linearly from the starting RPM to the End RPM. So if you choose 20 degrees of timing from 5k-20k rpm then for every 1000 rpms the ESC will add 1.3 degrees of timing. For turbo or boost or whatever they call it, there is usually a setting that denotes how much more timing will be added on top of the original amount after a delay of either rpm or full throttle is reached. Some controllers are capable of added a total of 65 degrees of dynamic timing to the motor. All this comes at a cost of heat and lost torque. So ESC have really effiencent algorithms and keep things pretty cool. But it is always possible to melt the motors.
As I said before the KO is good for Zero timing. But in the super stock class probably can not keep up.
#1238
Okay, that all really helps A LOT! Thanks Now I just have one more question.. If I were to run in a non-timing class, wouldn't that mean I don't use any of the timing on the ESC anyways? Or is it referring to the end-bell adjustments?
#1239
Zero timing is referring to the ESC dynamic timing. Unless your club requires a special motor endbell adjustment is allowed.
#1240
i am curious about a 1/12 application, a mod class is starting up near me. there are 2 BMC models currently available the 1.5 and mod.
it seems like the 'mod' version is the 1.5 but just has a fan and heatsink.
it isn't clear if there is more of a difference which makes the most sense for a 1/12 application
thanks for any insight.
it seems like the 'mod' version is the 1.5 but just has a fan and heatsink.
it isn't clear if there is more of a difference which makes the most sense for a 1/12 application
thanks for any insight.
#1241
#1242
i am curious about a 1/12 application, a mod class is starting up near me. there are 2 BMC models currently available the 1.5 and mod.
it seems like the 'mod' version is the 1.5 but just has a fan and heatsink.
it isn't clear if there is more of a difference which makes the most sense for a 1/12 application
thanks for any insight.
it seems like the 'mod' version is the 1.5 but just has a fan and heatsink.
it isn't clear if there is more of a difference which makes the most sense for a 1/12 application
thanks for any insight.
If you have the link and the computer software then you can still adjust the parameters.
#1243
According to the KO people there is an internal difference with the fets, it also includes a capacitor and the default profiles are specifically for mod. Asking about it on here its all about making the throttle response better for the lower turn motors.
If you have the link and the computer software then you can still adjust the parameters.
If you have the link and the computer software then you can still adjust the parameters.
it seems like the mod version may be too tall with the heatsink, or does it fit without issues?
i missed this on the ko website, in the software support page:
'' 2010 ROAR Carpet Nationals & 2010 IIC 1/12th Mod TQ & Champion
-Used by facotry support driver Josh Cyrul to win the above races.
-Profile uses the new BMC 2010 software manager for 1S voltage.
-Must use BMC power cap and modified version of BMC for the best result."
#1244
ok, so is the 'mod' the better choice for 1/12?
it seems like the mod version may be too tall with the heatsink, or does it fit without issues?
i missed this on the ko website, in the software support page:
'' 2010 ROAR Carpet Nationals & 2010 IIC 1/12th Mod TQ & Champion
-Used by facotry support driver Josh Cyrul to win the above races.
-Profile uses the new BMC 2010 software manager for 1S voltage.
-Must use BMC power cap and modified version of BMC for the best result."
it seems like the mod version may be too tall with the heatsink, or does it fit without issues?
i missed this on the ko website, in the software support page:
'' 2010 ROAR Carpet Nationals & 2010 IIC 1/12th Mod TQ & Champion
-Used by facotry support driver Josh Cyrul to win the above races.
-Profile uses the new BMC 2010 software manager for 1S voltage.
-Must use BMC power cap and modified version of BMC for the best result."