15 replies to this topic

[dalek]

Is it possible for an ESC to be tampered with, such as a racer changing the programming to make his car faster?

[Pappy]

As I understand it, some ESC's are programmable and some not. That's all I really know about it. We ran a brushless motor in the Michigan 24 hour race this year and it did good but the ESC was not good at slow speeds. The guy marketing them came out with a new one that was suppose to solve the problem which it kinda did, the motor was really good at slow speeds but in testing we melted two of them. Needless to say we didn't use them.

[Joe Maxey]

Yes it is possible. Go open motor like we do at our local track and there will be no issues. Cheaters going to cheat.

[Tim Neja]

The ESC's and motors will be suspect for a while until they decide what performance levels they want and then create non-programable units.  We went through this in RC racing years ago when brushless first came in.  Then there were "spec'd" ESC's and motors created for particular class's.  

[dalek]

The ESC's and motors will be suspect for a while until they decide what performance levels they want and then create non-programable units.  We went through this in RC racing years ago when brushless first came in.  Then there were "spec'd" ESC's and motors created for particular class's.  

 

Until then, I'm thinking that a possible solution could be for the raceways to supply the ESC's  then take them back after the races are completed. 

 

Also, maybe the motors (with pinion installed) since they last so long and performance doesn't degrade over time.

 

In order to eliminate repeated soldering, it might be good if the ESC's, motors and guide wires had push-on connectors.

[jimht]

A quote from Rocky Russo (RIP): "All rules are written out of fear".

 

Motor restricted classes were developed to keep cost down....how has that worked out?

 

None of my customers have ever asked me to sell them a slow motor because they couldn't handle speed. The attitude is a fast motor will compensate for driving ability.   

 

The trick is figuring out which motor is fast enough to win, not running the fastest motor...YOMV may vary if you snooze with Wing Cars on a punchbowl King where the challenge is to not forget where your car is.

[MSwiss]

Jim, unlimited motors sound great........except.

 

Guys are used to racing cars are of similar speed.

 

I can't believe the racing will be as clean with guys having the option to race like a drunken sailor.

 

Did you ever get brushless figured out on your track?

[Bags]

I highly doubt that the average Joe can reprogram the ESC’s currently on the market at this time.

 

If the tech inspection is done every race ( is it ? ) might be the problem.

 

I think that you will find that tire compound might be the key to the “cheating”.

If all gears and motors are the same then it’s a spec. that can’t be messed with. 
 

Look into the chassis setups too, one might be a little better setup than another?

 

The ESC’s  are factory set.

[Jay Guard]

From what I understand at the recent ISRA World Championships guys were rewinding their brushless motors right in the pits.  Yeah I know, that's different from reprogramming the ESC but those top European Guys are super sharp so it wouldn't surprise me in the least that they were reprogramming the ESC too.  Of course in the Eurosport 1/24 class it's all open motors so I guess it wasn't a problem from a legal standpoint.

[jimht]

Jim, unlimited motors sound great........except.

 

Guys are used to racing cars are of similar speed.

 

Irrelevant, all motors run different, sometimes cars are different speeds regardless of the motor.

 

I can't believe the racing will be as clean with guys having the option to race like a drunken sailor.

 

Says the guy who throughout his racing career endeavored to have faster motors than everyone else and didn't care whether the folks he beat were up to the challenge.

Driver classes vs motor classes...which is really better for fair competition?

 

Did you ever get brushless figured out on your track?

 

Mostly...a combination of too tall gearing stressing the ecoms and ecoms that couldn't handle some motors.

Research happily continues...

[Pappy]

Jim, I usually run a 290 resistor network when running a standard 1/32 scale motor between 21,500 rpm and a 25,000 rpm motor. With a brushless motor I went back to my 148 that came with my DiFalco controller. I even tried a 78 resistor network and I could control it. I also tried putting a piece of duct tape over the full speed pad and it really tamed it down. Depends on the brushless motor how much you need to tame it. Just a couple of things for you to try. Gearing and adding weight didn't do it for us on 1/32 scale plastic chassis cars. We finished second in the Michigan 24 hour race this year with a brushless motor.

[MSwiss]

Butch,

On the last sentence, do you mean "with a brushed motor"?

[Pappy]

No, we used a DoSlot KV2000 brushless motor. I put together a Slot It Porsche GT 1 with a KV3000 motor that set a new record on my track but I don't think we'd have done any good with it on the Michigan 24 track because it was too hot. We're hoping they perfect the ESC's for next years race because brushless motors are not easy to drive at slow speeds.

[MSwiss]

Got it.

 

A different brushless setup.

[team burrito]

why is this a problem? it's an open class anyway, unless you're trying to organize it.

[Bags]

The hand controller has an effect on how the cars run too, how many mods are they having done to them?

 

Ask the fast guys see if they let you in on it…