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Old 05-21-2011, 03:15 PM   #7171
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Originally Posted by sidecarphil1 View Post
just try it the updates are free and if you got the speedo why not ??
Because X12 is going to be the hand-out motor for DHI Cup in Open Stock, and I don't own an X12. And stock is just boring on the large open tracks we have outdoors
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Old 05-21-2011, 11:19 PM   #7172
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do you have a good setup for 17.5 touring?
thanks,
no sorry the software is quite new so people are working on set ups but as of yet i dont have a 17.5 set up , and also we dont race that class here in Europe

have a go your self just watch your motor temps every 2 laps when you change things
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Old 05-22-2011, 07:35 PM   #7173
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Today I took my X-Ray T3 to the track for it's first race and never made it out of the pits. The car has a Tekin RS Pro speedo powering a Speed Passion Competition 17.5 3.0 motor. I have had the car to the track for gearing, programming and motor temp testing. The motor has never seen temps anywhere near 150f and it had good speed, so I thought I was ready to race.
I installed the battery, the body, turned the radio on, then the speedo. Before I left the pits I pulled the trigger to about 1/4 throttle just to make sure the car was on and functioning. The motor hardly built any rpm then the driveline of the car locked up. Upon further inspection I determined the rotor in the motor exploded.
I bought the Speed Passion because I heard good things about them and as soon as I determined the problem, I heard from more than a few people in the pits that that model motor is notorious for scattering rotors, is this a fact?
Since I need to purchase another motor I would hate to make the same mistake again.
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Old 05-22-2011, 08:32 PM   #7174
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No it is not true.
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Old 05-22-2011, 09:49 PM   #7175
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Does the Old USB Programmer from GT2.0 work on the GT2.1 Escs ?

Because the New Field Programmer style are a joke.
They Are Extremely Flimsy feeling and Break able.

I like my Metal Cased HobbyWing Style Programmer for my GT2.0 back then better. Heck even the old Field Programmer felt better.

Though the ESC itself is awesome. Nice compact and runs very cool.
Disappointed in the small Cap Bank they give you in the 2.1 LOL but heck whatever works.

So does any one know how the new Software works with Turbo/Boost ?
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Old 05-22-2011, 10:15 PM   #7176
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Originally Posted by lostinbaja View Post
Today I took my X-Ray T3 to the track for it's first race and never made it out of the pits. The car has a Tekin RS Pro speedo powering a Speed Passion Competition 17.5 3.0 motor. I have had the car to the track for gearing, programming and motor temp testing. The motor has never seen temps anywhere near 150f and it had good speed, so I thought I was ready to race.
I installed the battery, the body, turned the radio on, then the speedo. Before I left the pits I pulled the trigger to about 1/4 throttle just to make sure the car was on and functioning. The motor hardly built any rpm then the driveline of the car locked up. Upon further inspection I determined the rotor in the motor exploded.
I bought the Speed Passion because I heard good things about them and as soon as I determined the problem, I heard from more than a few people in the pits that that model motor is notorious for scattering rotors, is this a fact?
Since I need to purchase another motor I would hate to make the same mistake again.
Been running my 17.5 v3 sp motor a long time and had zero issues. I've seen rotors explode though in all brands, not just one.
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Old 05-23-2011, 05:12 AM   #7177
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Quote:
Originally Posted by lostinbaja View Post
Today I took my X-Ray T3 to the track for it's first race and never made it out of the pits. The car has a Tekin RS Pro speedo powering a Speed Passion Competition 17.5 3.0 motor. I have had the car to the track for gearing, programming and motor temp testing. The motor has never seen temps anywhere near 150f and it had good speed, so I thought I was ready to race.
I installed the battery, the body, turned the radio on, then the speedo. Before I left the pits I pulled the trigger to about 1/4 throttle just to make sure the car was on and functioning. The motor hardly built any rpm then the driveline of the car locked up. Upon further inspection I determined the rotor in the motor exploded.
I bought the Speed Passion because I heard good things about them and as soon as I determined the problem, I heard from more than a few people in the pits that that model motor is notorious for scattering rotors, is this a fact?
Since I need to purchase another motor I would hate to make the same mistake again.
I have been running the same 17.5 V3, which was purchased when they first were released. Has been run on indoor carpet and outdoors with zero issues.
Exploding a rotor is typically seen by applying full throttle on the bench with a boosted ESC. The unloaded RPM builds very quickly and well exceeds the normal operating RPM.
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Old 05-23-2011, 06:10 AM   #7178
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Exploding a rotor is typically seen by applying full throttle on the bench with a boosted ESC. The unloaded RPM builds very quickly and well exceeds the normal operating RPM.
Excessive RPM was not the case in this instance.
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Old 05-23-2011, 01:10 PM   #7179
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Excessive RPM was not the case in this instance.
I've done the same thing once as well, and was at quarter throttle. I think the morale of the story is don't free rev brushless motors.
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Old 05-23-2011, 01:25 PM   #7180
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Anybody have any suggested settings for 21.5 boosted using an epic d3 with the sp gt2.1 on the newest stock software?
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Old 05-23-2011, 02:32 PM   #7181
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I've done the same thing once as well, and was at quarter throttle. I think the morale of the story is don't free rev brushless motors.
I have a 17.5 Tekin in a SC10 and it gets free revved to top speed, hundreds of times per race night to adjust the trajectory of the truck in the air. in a 1 1/2 years of racing at least 2 times a week I have not had an issue with the motor.
As much as I like the wiring plugs in the SP motor, I guess I'm in the market for a 17.5 Tekin.
I think the morale of the story is don't free rev Speed Passion brushless motors, not even a little.
Thanks for the advice.
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Old 05-23-2011, 02:36 PM   #7182
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Truck tires weigh multiples of a sedan tire. You don't spin the motor up as fast.

I have seen free revved motors explode like this in sedans. Sorry you had to learn the hard way.
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Old 05-23-2011, 03:36 PM   #7183
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I am positive that a 17.5 without boost and turbo in a sedan at less than 1/4 throttle will not spin up as fast as a 13.5 with boost and turbo maxxed out at full throttle in a short course truck.

Since I made the post this morning, I have recieved PM's from several people that have had the same issue with their SP motors on the track (under load).

The lesson I did learn is: There is a reason why the used Tekin motors get snatched up in minutes on the classifieds board and the SP stuff sits on the board for days.
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Old 05-23-2011, 04:56 PM   #7184
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Congratulations, you win. Your prize is an exploded motor.
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Old 05-23-2011, 06:51 PM   #7185
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I not only paid to win a junk motor but I learned an important lesson besides, Don't buy second rate Speed Passion equipment and stick with the good stuff like Tekin and Trinity based motors. Tekin at least has a support network.
Hopefully others will learn from my mistake.
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