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Old 10-11-2012, 07:33 PM   #31
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Quote:
Originally Posted by M3Armand View Post
I think you're mistaken. The grey (silver) 17.5 has a higher kv rating. Also, where do you see the "fan" with the red motor?

See below:

GREY
Specs:
Can Size: 540
Turns: 17.5
RPM/v: 2270kv
Sensored: Yes (Standard 6 pin harness)
Max voltage: 7.4 (2S)
Max Current: 28A
Max Watts: 190w
Can Diameter: 36mm
Can Length: 53mm
Shaft Size: 3.175mm
Weight: 177g

RED
Specs:
Can Size: 540
Turns: 17.5
RPM/v: 1870kv
Poles: 2
Sensored: Yes (Standard 6 pin harness)
Max voltage: 11.1V~14.8V (3~4S)
Max Current: 17A
Max Watts: 250w
Resistance: 0.0513ohm
No Load Current: 2A
Shaft Size: 3.175mm
Can Diameter: 36mm
Can Length: 51.5mm
Weight: 156g
I saw the fan on the 5.5 under the Features but it is not on the 17.5 and I was wrong on the KV but I was looking at the watts and this is deciving because the red motor has a higher voltage rating.
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Old 10-12-2012, 01:25 AM   #32
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The red one is rated for 2s and 3s but the grey/silver one is only rated for 2s.
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Old 10-12-2012, 01:54 AM   #33
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Buy the grey one, its for 2S

I don't understand what do you mean with burnt motor smell but I have that also with all my LRPs/Nosrams (if we think of the same thing) so I would say it's normal for a motor running at temperatures so high. I must say me and my friends are very impressed with Turnigy batteries and I have already decided I will not buy any more higher priced LiPOs, so I believe the motors have a great price/quality ratio as well. Will definetely give them a shot in the near future, but I will stay with LRP motors for now since I have quite a few of them
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Old 10-12-2012, 01:56 AM   #34
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Originally Posted by CraigMBA View Post
actually, I mean like what kind of hate mail they got. Is it for the esc or the motors? If it is for the motor then I'll have to watch out for it, lol
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Old 10-12-2012, 07:43 AM   #35
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Quote:
Originally Posted by halldor View Post
The red one is rated for 2s and 3s but the grey/silver one is only rated for 2s.
So is there anything to gain by buying the red? I will most likely only use it for 2s and not 3s. I am wondering if the grey will be more "efficient" since it's built for only 2s. The grey shows more kv than the red.
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Old 10-12-2012, 08:04 AM   #36
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Originally Posted by M3Armand View Post
So is there anything to gain by buying the red? I will most likely only use it for 2s and not 3s. I am wondering if the grey will be more "efficient" since it's built for only 2s. The grey shows more kv than the red.
Usually the lower KV motors are higher torque. I am going to try the red one in my 1 cell 1/12th pan car. I like the lighter weight and the position of the sensor wire socket.

edit:

I already have a silver one in my 1/12th car now that I have yet to try but I will be using it this weekend. Once I get the red one I will be able to do a comparison.
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Last edited by BCbud; 10-12-2012 at 08:20 AM.
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Old 10-12-2012, 06:32 PM   #37
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Originally Posted by BCbud View Post
Usually the lower KV motors are higher torque. I am going to try the red one in my 1 cell 1/12th pan car. I like the lighter weight and the position of the sensor wire socket.

edit:

I already have a silver one in my 1/12th car now that I have yet to try but I will be using it this weekend. Once I get the red one I will be able to do a comparison.
If you use the silver motor for 1 cell you need to get a RPM rotor.
Tower Hobbies sells them..

http://www3.towerhobbies.com/cgi-bin...?&I=LXBJNZ&P=7

OR
I haven't tried it.

You can wrap the original rotor in foil and bake at 300 degrees for 5 minutes.
This sounds funny but some guys had great success.
Reduces magnet field and turns the rotor into more RPMs.
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Old 10-13-2012, 08:19 AM   #38
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If you use the silver motor for 1 cell you need to get a RPM rotor.
Tower Hobbies sells them..

http://www3.towerhobbies.com/cgi-bin...?&I=LXBJNZ&P=7

OR
I haven't tried it.

You can wrap the original rotor in foil and bake at 300 degrees for 5 minutes.
This sounds funny but some guys had great success.
Reduces magnet field and turns the rotor into more RPMs.
That rotor cost more than the cost of this motor. That defeats the purpose of buying this motor. As for baking the rotor to make it an rpm rotor, I dont think so. Small rotor diameter = rpm ; larger rotor diameter = tourque.
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Old 10-14-2012, 10:28 AM   #39
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I ran the silver motor in my 1 cell 1/12th pan car last night in 17.5 boosted class. It worked well and performed as good or better than my driving skills. It never came off hotter than 140 after three 8 min runs. Next time out I will get a little more agressive with the settings on the speedo and see how it takes it.
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Old 11-05-2012, 01:31 PM   #40
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well I tried the red motor in my 1 cell 1/12th scale on the weekend. I know that I needed to gear up but what surprised me was how mutch I needed to gear up. I ended up with a 100mm rollout and the motor came off at 159 for the last 2 races with that gearing! The car ran well and the only thing holding me back was my driving skills. The one advantage to this motor is the weight, at 156g on my scale it is the lightest 17.5 that I have.
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Last edited by BCbud; 11-05-2012 at 08:52 PM.
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Old 11-05-2012, 08:40 PM   #41
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Quote:
Originally Posted by BCbud View Post
I ran the silver motor in my 1 cell 1/12th pan car last night in 17.5 boosted class. It worked well and performed as good or better than my driving skills. It never came off hotter than 140 after three 8 min runs. Next time out I will get a little more agressive with the settings on the speedo and see how it takes it.
Quote:
Originally Posted by BCbud View Post
well I tried the red motor in my 1 cell 1/12th scale on the weekend. I know that I needed to gear up but what surprised me was how mutch I needed to gear up. I ended up with a 100mm rollout and the motor came off at 159 for the lasr 2 races with that gearing! The car ran well and the only thing holding me back was my driving skills. The one advantage to this motor is the weight, at 156g on my scale it is the lightest 17.5 that I have.
So over all how would you compare the Red vs Silver motors? do you think one is better then the other?
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Old 11-05-2012, 09:01 PM   #42
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So over all how would you compare the Red vs Silver motors? do you think one is better then the other?
I have not given the silver motor a fair test as I was trying to figure my new (to me) car. I now have the car working good so I will put the silver back in and give it another shot. The light weight of the red is a definite plus for 1/12 scale.
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Old 11-05-2012, 09:27 PM   #43
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My experience is the red motor is more prone to cogging when run behind a sensorless esc (was quite bad behind an Associated SC700 ESC)
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Old 11-06-2012, 12:27 AM   #44
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Originally Posted by BCbud View Post
I ran the silver motor in my 1 cell 1/12th pan car last night in 17.5 boosted class. It worked well and performed as good or better than my driving skills. It never came off hotter than 140 after three 8 min runs. Next time out I will get a little more agressive with the settings on the speedo and see how it takes it.
I got a 4.0T silver motor for about 1 month. Running roll out of around 40 to 42. Works well so far without much heat.
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Old 11-06-2012, 02:54 AM   #45
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i also want to buy one, but their web blocked in our region (Hong Kong).....any help ?
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