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Advice on 17.5 motor

Advice on 17.5 motor

Old 03-21-2015, 09:19 PM
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Default Advice on 17.5 motor

Looking to buy a motor to bash and run at a local track.
Local track has a17.5 blinky class.

I have a tenth scale onroad tc3 and my friend has a tc4, we want to be competitive at track and hoping to get some advice from some of the smart and experienced people here.

I was looking at purchasing the hobbywing justock esc, is this a good way to go?

I saw a hobbywing justock combo with brushless 17.5 motor and esc for 115 on eBay, Is the hobbywing 17.5 motor reliable and competitive?

What are differences in brushless and brushed motors?

Hoping to find a competitive and inexpensive setup that is reliable.

Thanks very much to anyone who can help me.
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Old 03-21-2015, 09:23 PM
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If you're just racing at your local, the best 17.5 is a cheap one. I've yet to find a 17.5 motor that I couldn't get up to race speed with a little experimentation in gear and timing.

The most forgiving motor I have run so far is probably my LRP X20.
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Old 03-21-2015, 09:27 PM
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Thanks Desert Rat.....I will check it out.

Thank You
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Old 03-22-2015, 05:57 AM
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Love the screen name !

I just got this exact same set up (hobbywing just stock and 17.5). Put it in my sons SCT and at first it had no top end. Then I did some reading on gearing and changed from the 16/84 that came with it (RTR gearing) to a 28/75 and that made all the difference in the world.. Unfortunately I have yet to get back to the track to test it out.

Last edited by Boss73; 03-23-2015 at 01:02 PM.
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Old 03-22-2015, 07:26 AM
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The justock is a good esc for the price. Mine has worked fine in 17.5 and 21.5 VTA. The hobbywing motir that comes in the combo has fixex timing which is set pretty low, so they are a bit slower than other motors. They are ok for outdoor bashing since they don't have big cooling vents to let crud indide.
If affordable and still decently quick is what you are after (and roar aporoved), look into the Trackstar 80A turbo ESC and Trackstar 17.5 brushless motor combo. I've been running the combo twice a week for a year with no issues. The combo is less than $70.
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Old 03-23-2015, 05:42 AM
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A fixed timing motor will really keep you from being competitive in blinky classes since your not allowed to change timing in the esc.

I agree with the Trackstar 17.5 for a budget motor or the trinity d4 for around $90.
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Old 03-23-2015, 10:11 AM
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Boss73.......thanks for the feedback.......hope you and your son have a blast next time you go to the track with your new setup!!

DBM........thanks for the information and insight......great stuff!!!! Will be looking into the Thank You

2uzferunner03.......thanks for the info and insight......Thanks!!

All input is very much appreciated.......it really helps in making a buying decision, with so many different options available.
THANK YOU!!!!!
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Old 03-23-2015, 10:49 AM
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I ran the HW Justock esc and HW motor combo you mentioned. In a nutshell, that motor is not competitive. The Justock is a great ESC for blinky, lots of adjustments with the LCD programmer box. The HW motor is reliable and smooth, but slow. As mentioned it has fixed timing and not much top end. Also the motor I got was shimmed real real tight, no end play. It heated up, and was slower cause of that. So if you buy that motor take some shim(s) out to give it some end play. Also oil the bearings, they were dry when I got em.

Try a Trackstar or Team Powers Actinium motor.
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Old 03-23-2015, 11:36 AM
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Eco power Slingshot 17.5 for 59.99 at Amain. Heard they are a great motor..
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Old 03-24-2015, 03:55 PM
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Rotortruck..........appreciate the information and sharing your experience with the hobbywing motor..........awesome stuff!!! Thank You!

LogiMaker.........Thanks for the motor recommendation .


The information provided in this thread is a really BIG help.........I had no idea about setting motor timing or other things.
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Old 03-24-2015, 05:00 PM
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Ask 5 different people about the best 17.5 and you will probably get at least 6 different answers. I am personally loving my Team Powers motor, but I don't have a lot to compare it to since I recently got back into 17.5 TC. I never have a speed/power issue though, and don't even run a fan on the motor.

You probably can't go wrong with any modern 17.5 honestly (assuming it has adjustable timing as others have pointed out). The most important thing is the gearing of your car which is limited by the heat of your motor. Get yourself an infrared thermometer (almost any hardware store like Home Depot or Lowes will have this) and just keep gearing your car up until its around 150-160 degrees after a 5 minute run. You should be dialed at that point, speed-wise.
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Old 03-24-2015, 05:03 PM
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My first on-road 17.5 motor choice is going to be a Trinity 1s short stack...the $110 version.
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Old 03-24-2015, 05:13 PM
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Originally Posted by Trevor Williams View Post
My first on-road 17.5 motor choice is going to be a Trinity 1s short stack...the $110 version.
I just ran the certified version of this motor in my 12R5.2 at my local asphalt track last weekend. I was able to gear it to the moon while it stayed relatively cool, and was untouchable down the straight-away. I don't know how well it does in non-1S applications, but I couldn't possibly be more pleased with it in my 1/12 scale.
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Old 03-24-2015, 05:56 PM
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Nice.....great to hear! !
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Old 03-25-2015, 11:29 AM
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WesRaven.......thanks for the temperature range.......very helpful to know this. ThankYou

Trevor.......good luck with your motor choice.........if you are able...let us know how you like the Trinity.
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