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Old 04-03-2013, 11:26 PM   #136
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Originally Posted by ta04evah View Post
As Cyanyde said, have you tried changing the gearing on your car? These motors have lots of torque and can withstand high temperatures, so increasing the roll out on your car could be an option to take first?

Cheers
Rob.
I'm already running a pinion with 2/3 teeth more them the other guys, i'll try 1 tooth more and we'll see!!!!

Ciao
Max
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Old 04-04-2013, 12:01 AM   #137
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I'm already running a pinion with 2/3 teeth more them the other guys, i'll try 1 tooth more and we'll see!!!!

Ciao
Max
I assume you're running blinky. If so then run with max timing and gear accordingly (Do not compare to other makes coz the turnigys have more torque). There's no way on earth these Trackstars are slow.
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Old 04-04-2013, 12:43 AM   #138
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The Turnigy TrackStar 150A ESC along with the Turnigy 1900KV 1/8th Scale 4 Pole Brushless Motor is a great combo!
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Old 04-04-2013, 12:48 AM   #139
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Btw, I tried posting a video of the Turnigy TrackStar 150A ESC along with the Turnigy 1900KV 1/8th Scale 4 Pole Brushless Motor in action from youtube, but I got this message:

"You are only allowed to post URLs to other sites after you have made a certain number of posts. You have not reached that limit yet."
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Old 04-04-2013, 01:02 AM   #140
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I'm already running a pinion with 2/3 teeth more them the other guys, i'll try 1 tooth more and we'll see!!!!

Ciao
Max
That's perfectly possible, cause the internal ratio of your car could be different to other cars.
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Old 04-04-2013, 02:53 AM   #141
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That's perfectly possible, cause the internal ratio of your car could be different to other cars.
You are right, but the final fdr doesn't change so much from one model to the other and presently, in blinky mode, my fdr is 4,1 the other guys are running 4,3 or something like that

Ciao
Max
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Old 04-04-2013, 04:40 AM   #142
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Originally Posted by mtaddei View Post
You are right, but the final fdr doesn't change so much from one model to the other and presently, in blinky mode, my fdr is 4,1 the other guys are running 4,3 or something like that

Ciao
Max
That is true, but as said before the Trackstar motors have a lot of torque, if you can gear the motor correctly you'll be able to keep up with the other cars on the straight.
This is of course if your other gear is capable such as good batteries and a well maintained car etc.
Where I race we use 21.5 motors in touring cars, I use either of 2 motors, 1 being a Reedy at 3.2 fdr and a Hobbywing at 2.85 which gives similar straight line speeds, as my Hobbywing motor has low revs but a lot of torque.
So experiment with gearing & motor timing some more and at the same time monitor motor temps to ensure you don't over heat the motor.
Good luck and good racing.

Cheers
Rob.
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Old 04-04-2013, 04:44 AM   #143
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You are right, but the final fdr doesn't change so much from one model to the other and presently, in blinky mode, my fdr is 4,1 the other guys are running 4,3 or something like that

Ciao
Max
Somtimes i find it better to go lower in motor timing and increasing the motorpinion.
That way you work more on the high torque of the motor.
Last week a guy at our club was running about 12s per round, and he also wanted to have some more speed.
I adviced him to turn down the motor timing and increase the motor pinion by 1 or 2 theet and his laptime improved with 0.2seconds.
At the end of the training he went 0.6s faster by just starting from a lower motortiming.
It all comes down to try things out, even if it looks/sounds unnatural.
The position of the motor also benefits the traction of the car wich can also result in better laptimes.
Just my 2cent opinion.
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Old 04-05-2013, 06:29 AM   #144
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So I had the opportunity to dial in this 17.5 motor again. I run on a small/medium sized technical carpet track. First time out I geared at 3.8. I noticed the motor had incredible end speed but felt like it lacked torque. Motor was coming off at about 148f.

Last night I put a bigger spur to take it down to 3.95 to try and gain some more torque. OMG this motor is amazing now! I feel like the motor has more torque than my revtech 17.5 with HT rotor. I'm also pulling people at the end of the straight, though our straight is a bit short cuz of our current layout.

The best part... Motor comes off at 120f after running it very hard.

It has so much torque on a fully charged battery that I'm even considering not charging my batteries fully.

BTW for the first time ever, I was within .2 hot lap of the fast guys. Usually I'm about .5-.6 back from them.

Great motors. I'm having crazy fun with this motor.
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Last edited by hyujmn; 04-05-2013 at 07:02 AM.
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Old 04-05-2013, 07:07 AM   #145
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Originally Posted by hyujmn View Post
So I had the opportunity to dial in this 17.5 motor again. I run on a small/medium sized technical carpet track. First time out I geared at 3.8. I noticed the motor had incredible end speed but felt like it lacked torque. Motor was coming off at about 148f.

Last night I put a bigger spur to take it down to 3.95 to try and gain some more torque. OMG this motor is amazing now! I feel like the motor has more torque than my revtech 17.5 with HT rotor. I'm also pulling people at the end of the straight, though our straight is a bit short cuz of our current layout.

The best part... Motor comes off at 120f after running it very hard.

It has so much torque on a fully charged battery that I'm even considering not charging my batteries fully.

BTW for the first time ever, I was within .2 hot lap of the fast guys. Usually I'm about .5-.6 back from them.

Great motors. I'm having crazy fun with this motor.
So what did you end up for your final gearing?? Also which car are you running the motor in??
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Old 04-05-2013, 07:19 AM   #146
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Great to hear this about the Trackstar, I was already looking at the 120 or 150 amp setup myself. I haven't read too much bad about them as far as longevity.
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Old 04-05-2013, 09:35 AM   #147
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I've got the motor at 3.95 with full motor timing on an Xray t3'12 with a Hobbywing v3 ESC. Tires are spec Sweeps 28s. I might even back off a bit on the motor timing cuz this thing is RIDICULOUSLY fast. The torque and pull are crazy and I'm easily the fastest 17.5 on the straight.

Again 120f after 6-7 minutes (I always practice too long)... Can't beat the value! I'll be hanging on to it for a while and then test it against a d3.5. Like I said earlier though, I MUCH prefer it to my revtech 17.5 with HT rotor. More end speed, more torque, and cooler temperatures.

If only I could drive better!
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Old 04-07-2013, 01:31 PM   #148
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Originally Posted by addicted2blue View Post
Somtimes i find it better to go lower in motor timing and increasing the motorpinion.
That way you work more on the high torque of the motor.
Last week a guy at our club was running about 12s per round, and he also wanted to have some more speed.
I adviced him to turn down the motor timing and increase the motor pinion by 1 or 2 theet and his laptime improved with 0.2seconds.
At the end of the training he went 0.6s faster by just starting from a lower motortiming.
It all comes down to try things out, even if it looks/sounds unnatural.
The position of the motor also benefits the traction of the car wich can also result in better laptimes.
Just my 2cent opinion.
Ciao addicted2blue,
today a followed your suggestion, i reduced the motor timing and i fitted a bigger pinion, so i raced with 3.9 of fdr, the car was the faster on the track.
The maximum temperature achived was 72°Celsius.
Everything worked weel and i took the final victory.

Ciao
Max
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Old 04-07-2013, 03:41 PM   #149
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Quote:
Originally Posted by mtaddei View Post
Ciao addicted2blue,
today a followed your suggestion, i reduced the motor timing and i fitted a bigger pinion, so i raced with 3.9 of fdr, the car was the faster on the track.
The maximum temperature achived was 72°Celsius.
Everything worked weel and i took the final victory.

Ciao
Max
Congrats on the victory, it's allways a plesure to help someone to a winner.
But be carefull on the temp, perhaps you can mount a fan towards the motor to reduce more heat from the motor.
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Old 04-08-2013, 08:06 AM   #150
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Got myself another (silver) Trackstar motor, and the enbell timing goes all the way to the end of the timing marks in either direction - maybe a little more.

So perhaps the problem of the endbell timing stopping at 2 marks before the end has been fixed by the factory?

Cheers
Rob.
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