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Old 07-01-2025 | 08:06 PM
  #316  
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Originally Posted by gigaplex
A motor analyser would quickly detect that. When we ran control motors for the 21.5 class we set the KV with the analyser then sealed the motor with a tamper sticker. Any time the sticker was damaged, it needed to be re-checked.

Thats a good way to do it. If you use an analyzer and record all the number, there is no way to argue it. Problem is, how many tracks actually do inspections after a race?
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Old 07-02-2025 | 12:08 AM
  #317  
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Originally Posted by OffRoadJunkie
Thats a good way to do it. If you use an analyzer and record all the number, there is no way to argue it. Problem is, how many tracks actually do inspections after a race?
It is not that, it is more the needed time to inspect motors in such a way. Also with drivers who are not patient to wait with working on their car in between the heats/finals.
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Old 07-02-2025 | 04:41 PM
  #318  
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Originally Posted by Roelof
It is not that, it is more the needed time to inspect motors in such a way. Also with drivers who are not patient to wait with working on their car in between the heats/finals.

It just really sucks that it is even needed. Maybe it's time to do away with stock class sportsman and only have the stock class for the rookies. Maybe a novice sportsman that uses 13.5 motors, but any class higher will be a mod motor.
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Old 07-02-2025 | 06:41 PM
  #319  
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Originally Posted by OffRoadJunkie
Thats a good way to do it. If you use an analyzer and record all the number, there is no way to argue it. Problem is, how many tracks actually do inspections after a race?
The JBRL does and thats why I love any race he puts on.

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Old 07-02-2025 | 07:01 PM
  #320  
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Looking at the locked timing 1.5T motor I had made back in 2008, I wonder if moving the sensor as mentioned above would've gotten me over 20,000Kv rofl. I'm glad I still have a few of the ESC that can power this monster, maybe one day I'll add newer MOSFETs for even more power.











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Old 07-02-2025 | 11:15 PM
  #321  
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Originally Posted by STLNLST
The JBRL does and thats why I love any race he puts on.

Where's that place at?
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Old 07-02-2025 | 11:17 PM
  #322  
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Originally Posted by lutach
Looking at the locked timing 1.5T motor I had made back in 2008, I wonder if moving the sensor as mentioned above would've gotten me over 20,000Kv rofl. I'm glad I still have a few of the ESC that can power this monster, maybe one day I'll add newer MOSFETs for even more power.



LOL... Very Cool!!!
So, why would you ever feel a need to adjust the timing on a 1.5T?
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Old 07-03-2025 | 03:25 AM
  #323  
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Originally Posted by OffRoadJunkie
It just really sucks that it is even needed. Maybe it's time to do away with stock class sportsman and only have the stock class for the rookies. Maybe a novice sportsman that uses 13.5 motors, but any class higher will be a mod motor.
The main problem is that modern motors are really fast. If you create a class that's not power limited, it's too fast for most people. And if you create a class that's power limited, there's always an advantage to finding a way to get more power.

You can create a power limited class that's slow but yet still doesn't benefit much from adding power. To do that, you need to take away grip. But I can't see track owners doing that.

The other approach is to do what ETS does with RPM limiters in the ESC firmware. Adding more timing won't get you more speed.
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Last edited by gigaplex; 07-03-2025 at 03:48 AM.
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Old 07-03-2025 | 04:16 AM
  #324  
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An RC limiter is a way but then the hunt for more torque has started. The ETS FDR limit helps with that so any torque gain can not be used with a faster gearing.
And do not forget that a handout sealed motor can rule out the needed tricks. Funny is that when you suggest to run sensorless so no tricks on the sensor is possible many racers are complaining that it will not give a proper drive while for sure with todays ESC's and higher turns motors the control is pretty decent.
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Old 07-03-2025 | 06:30 AM
  #325  
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Originally Posted by OffRoadJunkie
Where's that place at?
JBRL is Jimmy Babcock Racing League. Its a moving series and tech is no joke. All motors must be tech in order to be used in the series and are tagged. Even tagged if you win its broken down again. Cheaters will be caught and unlike most tech at club races they know what they’re doing.
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Old 07-03-2025 | 06:41 AM
  #326  
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Originally Posted by STLNLST
The JBRL does and thats why I love any race he puts on.
I ran the JBRL races the last 2 years at Rainman's in Bakersfield and there was no motor tech. Battery voltage, weight and check blinky for stock classes but that's it.
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Old 07-03-2025 | 10:01 AM
  #327  
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Originally Posted by OffRoadJunkie
LOL... Very Cool!!!
So, why would you ever feel a need to adjust the timing on a 1.5T?
At the time I had it made, I didn't even think about it since it was/is the highest Kv 540 motor made. After seeing the sensor board with the sensors moved, it caught my attention, but only time will tell if I do somehow get back into the hobby. I'll first have to change a few things on my ESC though since you can see at no load the motor pulled 44A lol.
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Old 07-03-2025 | 02:34 PM
  #328  
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Originally Posted by gigaplex
The main problem is that modern motors are really fast. If you create a class that's not power limited, it's too fast for most people. And if you create a class that's power limited, there's always an advantage to finding a way to get more power.

You can create a power limited class that's slow but yet still doesn't benefit much from adding power. To do that, you need to take away grip. But I can't see track owners doing that.

The other approach is to do what ETS does with RPM limiters in the ESC firmware. Adding more timing won't get you more speed.
I do know that most tracks are way too small for a mod motor. I would only suggest creating a mod class if cheating is an issue. I do realize that there are not cheaters at every track. I think I have only questioned one guys car out of the races I have been to. I would love to see real offroad tracks make a comeback, but due to the upkeep, I don't see that happening.

Originally Posted by Roelof
An RC limiter is a way but then the hunt for more torque has started. The ETS FDR limit helps with that so any torque gain can not be used with a faster gearing.
And do not forget that a handout sealed motor can rule out the needed tricks. Funny is that when you suggest to run sensorless so no tricks on the sensor is possible many racers are complaining that it will not give a proper drive while for sure with todays ESC's and higher turns motors the control is pretty decent.
Torque is a huge plus for the smaller tracks we are seeing. However, High gauss rotors don't fare well on bigger and faster tracks where people are on the throttle all of the time. I have seen the motors get too hot.

Originally Posted by STLNLST
JBRL is Jimmy Babcock Racing League. Its a moving series and tech is no joke. All motors must be tech in order to be used in the series and are tagged. Even tagged if you win its broken down again. Cheaters will be caught and unlike most tech at club races they know what they’re doing.
That's good they have this type of racing. I'm sure it makes people feel for comfortable.


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Old 07-06-2025 | 10:33 AM
  #329  
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Originally Posted by Roelof
Funny is that when you suggest to run sensorless so no tricks on the sensor is possible many racers are complaining that it will not give a proper drive while for sure with todays ESC's and higher turns motors the control is pretty decent.
With a 14 pole outrunner motor, driveablity isn't an issue, they run cool, are nice and smooth and a great opportunity to drop a motor size and still maintain torque levels.
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Old 07-06-2025 | 10:40 AM
  #330  
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Originally Posted by Conrad
With a 14 pole outrunner motor, driveablity isn't an issue, they run cool, are nice and smooth and a great opportunity to drop a motor size and still maintain torque levels.
For crawlers maybe,,,, I don't see that happening with any offroad, or onroad racing classes.
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