How to spot 1/10th electric motor magnet strength
#1
How to spot 1/10th electric motor magnet strength
Hi RC experts,
How to differentiate different motor magnet strength ?
It is said good motor have very good magnet strength, how do we know this ?
Anyone can enlighten this ?
Greatly appreciated
How to differentiate different motor magnet strength ?
It is said good motor have very good magnet strength, how do we know this ?
Anyone can enlighten this ?
Greatly appreciated
#2
There are meters to measure the magnetic strength.
#3
Which brand motor has very good magnet strength ?
#5
Tech Champion
iTrader: (33)
I have used this meter here in the past when comparing magnetic strength of rotors:
In order to get reliable readings I had to remove the rotor and slowly rotate the rotor to let the magnetic field find it's peak measurement, the readings are not static so you have to quickly observe the peak strength.
Note that many manufacturers already measure their rotors before they assemble them to be sold to the public, the stronger rotors are reserved specifically for the team drivers. I did observe that some rotors were nearly 100mG different from others in the high torque rotors I tested from Trinity, that was close to a 6% variance in strength. I can only imagine how much stronger the team rotors are!
In order to get reliable readings I had to remove the rotor and slowly rotate the rotor to let the magnetic field find it's peak measurement, the readings are not static so you have to quickly observe the peak strength.
Note that many manufacturers already measure their rotors before they assemble them to be sold to the public, the stronger rotors are reserved specifically for the team drivers. I did observe that some rotors were nearly 100mG different from others in the high torque rotors I tested from Trinity, that was close to a 6% variance in strength. I can only imagine how much stronger the team rotors are!
#7
Tech Champion
iTrader: (33)
I think he's asking both, and for off-road I can confirm that rotor strength will make a 1/10 off-road car have both faster acceleration and slightly faster top speed with the rotors I've personally measured and tested on the track and compared my lap times.
It's been many years since I've raced on-road and I didn't do any testing with rotors back then, but generally high rpm rotors have been more sought out for on-road, but I would imagine a smaller more technical track would have me desire a torque rotor with higher magnetic strength as my personal preference.
Trinity is one of the brands out there that will sell 5% team spec motors to the public, though those motors are not as fast as the actual team motors that the team drivers get, they are guaranteed to be no more than 5% slower than the team motors.
It's been many years since I've raced on-road and I didn't do any testing with rotors back then, but generally high rpm rotors have been more sought out for on-road, but I would imagine a smaller more technical track would have me desire a torque rotor with higher magnetic strength as my personal preference.
Trinity is one of the brands out there that will sell 5% team spec motors to the public, though those motors are not as fast as the actual team motors that the team drivers get, they are guaranteed to be no more than 5% slower than the team motors.
#8
Tech Champion
iTrader: (2)
I think he's asking both, and for off-road I can confirm that rotor strength will make a 1/10 off-road car have both faster acceleration and slightly faster top speed with the rotors I've personally measured and tested on the track and compared my lap times.
It's been many years since I've raced on-road and I didn't do any testing with rotors back then, but generally high rpm rotors have been more sought out for on-road, but I would imagine a smaller more technical track would have me desire a torque rotor with higher magnetic strength as my personal preference.
Trinity is one of the brands out there that will sell 5% team spec motors to the public, though those motors are not as fast as the actual team motors that the team drivers get, they are guaranteed to be no more than 5% slower than the team motors.
It's been many years since I've raced on-road and I didn't do any testing with rotors back then, but generally high rpm rotors have been more sought out for on-road, but I would imagine a smaller more technical track would have me desire a torque rotor with higher magnetic strength as my personal preference.
Trinity is one of the brands out there that will sell 5% team spec motors to the public, though those motors are not as fast as the actual team motors that the team drivers get, they are guaranteed to be no more than 5% slower than the team motors.
#9
Tech Champion
iTrader: (33)
And this is why I choose to run mod classes whenever possible, the concept of "spec" racing has lost it's luster for me, especially when I get out motored.. part of me thinks this might be a factor in why the 1/10 program died in my area, people probably figured if they were going to run mod then simply run 1/8 and ditch 1/10 completely.. shrug