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Old 12-15-2009, 01:27 PM   #151
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Originally Posted by RCHR View Post

Racer's that don't agree would obviously have biased and self-serving interests.
you say that like is a bad thing, which it is not.

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Slash was good but when it transitioned to a SC class it is in rapid decline (at least around here). Slash was the ultimate spec class. Nearly everything was a very specific brand and it was dirt cheap. Then everyone came out with a SC truck to compete with the Slash and the rules started to open up and now the class doesn't have nearly the numbers it had when it was just Slash.


Off-road isn't a good representation for on-road though. The lack of traction in off-road makes a lot of things meaningless.
agree completey on both points
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Old 12-15-2009, 01:41 PM   #152
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So, limit battery capacity. We could always petition ROAR to reduce the battery volume allowed for sanctioned events. This will reduce capacity, and cause people to have to throttle drive like we did for all batteries below 3600 mah.

Since electronics are always going to make advancements, it will be impossible to chase down. Batteries on the other hand, if you limit the case volume, the capacity goes down.

Drivers will still have buku amounts of horsepower available at their fingertips. However, if you don't use it wisely, you are out of the game.
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Old 12-15-2009, 01:44 PM   #153
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With brushless/lipo it would probably have to be around 1800mah, but then everyone would complain about all the weight they had to add to their cars.
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Old 12-15-2009, 01:58 PM   #154
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Reduce weight to match.
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Old 12-15-2009, 02:08 PM   #155
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So, limit battery capacity. We could always petition ROAR to reduce the battery volume allowed for sanctioned events. This will reduce capacity, and cause people to have to throttle drive like we did for all batteries below 3600 mah.

Since electronics are always going to make advancements, it will be impossible to chase down. Batteries on the other hand, if you limit the case volume, the capacity goes down.

Drivers will still have buku amounts of horsepower available at their fingertips. However, if you don't use it wisely, you are out of the game.
One issue with this is that over discharging a lipo is dangerous and this lead to the practice being much more common.
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Old 12-15-2009, 02:09 PM   #156
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Reduce weight to match.
gotta balance the car still.
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Old 12-15-2009, 02:15 PM   #157
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Valid point. However, almost all modern speed controllers have built in low voltage cut-off programming. There are also devices that are available on the market to limit over-discharge.

I, personally, have not seen a pack catch fire from negligent over-discharge. I have seen swollen packs.

This would be easy to police. If you don't use a safety device to limit over discharge, you are dq'd from the event. No questions asked. With a stiff penalty like that, you can bet people will take note the first time that someone gets ejected. And you know that there will be the few people the first few times that decide to take the chance, and will act all surprised when they are the example.
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Old 12-15-2009, 02:15 PM   #158
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gotta balance the car still.
My Rev5L balances out quite well.
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Old 12-15-2009, 02:53 PM   #159
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Again, back to sensorless motors. No sensors for the ESC to read to make timing advancements, no performance gains.
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Old 12-15-2009, 03:02 PM   #160
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Again, back to sensorless motors. No sensors for the ESC to read to make timing advancements, no performance gains.
Has anyone figured out how to not get the motor to cog or have problems starting with a 17.5 motor using sensorless?
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Old 12-15-2009, 03:32 PM   #161
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Has anyone figured out how to not get the motor to cog or have problems starting with a 17.5 motor using sensorless?
I remember Tekin had issues with that for the high turn motors...I think that is why the RS was made. At first it was just a hybrid ESC and only used the sensor to get the car moving (without cogging) then it switched to sensorless.
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Old 12-15-2009, 04:35 PM   #162
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This is my point. We (Tekin) can run both. Running a dual drive that has a sensored start but sensorless drive will prevent the motors own sensors from being a factor in the timing equation.

Sensored start will prevent any cogging regardless of motor, then since there are some "tolerances" in sensored setups, adjustable motor timing,etc the sensorless drive will remove the motor from the equation along with those tolerances.

Perhaps this along with battery capacity would be an answer...
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Old 12-15-2009, 04:40 PM   #163
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Again, back to sensorless motors. No sensors for the ESC to read to make timing advancements, no performance gains.
Sensorless does NOT take away timing advance in the speedo. It simply uses the coils in the motor as the sensors. Same can of worms different way to open it.

If you guys want to limit power do it with either the battery or the motor. Same way that worked on brushed motors back in the day. You know when we went to a 6 cell limit (or 4 cell in 12th) and back when they totally changed the stock motors back in 91.

Limiting the electronics was and will always be nearly impossible to enforce. It's a fact of life that's been there even back in the brushed days.
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Old 12-15-2009, 04:54 PM   #164
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Putting on very low traction tires only frustrates people as it makes the cars hard to drive and setup.

At my local track, I spent months trying to perfect the setup for Jaco Blues on carpet. We have very low traction and the norm is 13.5 motors. Our newer guys run 17.5. Over the months of frustration for myself along with people quiting from lack of traction, we decided to put on better tires and everyone is enjoying it more.

Everyone needs to stop trying to come up with new rules for racing and just feel out the next 6 months. Im willing to bet almost every company will come out with their version of a BD and we will all be going about the same speed again.

If traxxas made a 2 wheel drive car that was ready to run, indistructable, less than $200 price point, and slash type speeds, onroad would be huge again.
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Old 12-15-2009, 05:32 PM   #165
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For the people on this thread that are asking for changes, what would you do if these changes did occur and you still finished your races in the same positions you are finishing now. What then? Quit..or just search for more reasons why things are not as competitive as they could be.
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