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Old 02-09-2012, 07:01 PM   #316
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is the revtech 21.5 compatible with a novak esc such as the brush-less GTB. Tower hobbies has compatible with all esc's except novak. I want the motor but don't to buy a new esc.
Thanks
I run 17.5 and 13.5 ReVtech motors without issue on both the Novak GTB 2 LP and Kinetic ESCs.
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Old 02-09-2012, 07:21 PM   #317
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where do we get bearings to rebuild the revtech motor? what size are they?
many thanks!!
1/8 x 3/8 x 5/32 is the bearing size. They can be found at Avid Rc, although they are out of stock atm..
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Old 02-10-2012, 09:00 AM   #318
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How about some oval setups from the Snowbirds?

Motor Timing
Rotor
ESC settings
???
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Old 02-10-2012, 11:55 AM   #319
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Which way is the best way to gear for 6.00 FDR.
106s 35s =6.057
115s 38p =6.053
21.5 revtech in vta

Thanks
Anyone??
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Old 02-10-2012, 12:01 PM   #320
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Anyone??
Can I ask why a 6.00 FDR in 21.5?....

You won't notice a difference between those ratios. The 106 will position the motor further back, so part of it depends on how your car's weight balances out.

Also, what vehicle? A 115/38 might not fit.....
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Old 02-11-2012, 08:57 AM   #321
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I just picked up a fresh rotor for one of my Revtechs... and the colored ring is pretty crooked on the magnet. There is a dollop of the balancing epoxy on the ring, so Im guessing it was actually balanced.

Without spinning the thing up it is hard to know whether or not it is truly balanced, though.

Has anyone received a rotor like this before?
A couple photos of the colored ring... It isn't super crooked, but it is definitely noticeable. As long as the rotor is balanced, this shouldn't negatively affect performance, correct?

Has anyone else received a new rotor that has a crooked ring like this?



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Old 02-11-2012, 01:11 PM   #322
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21.5 6.00FDR is our spec where we run. "Richfeild Raceway"
Car is TC5 1550 grams and the 115 is what i dun how.
Motor =21.5 Revtech
ESC= GTB
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Old 02-11-2012, 02:22 PM   #323
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If the rotor is balanced, the ring should have no negative performance impact. Being balanced means equal outward force at any point in the rotation.... regardless of "imperfections".
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Old 02-11-2012, 05:42 PM   #324
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For the 17.5 Rev, what is the bearing size front/rear? Also, what size are the timing plate screws? For some reason they seem to strip easy.

Also, what's the big difference between the stock Revtech rotor, the 12.5 HT, and the 13 HT rotors and what could I expect out of the latter two vs. the stock?
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Old 02-12-2012, 05:01 PM   #325
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Is there a high torque rotor for the 13.5 duo 1 ?
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Old 02-12-2012, 05:19 PM   #326
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Is there a high torque rotor for the 13.5 duo 1 ?
To my knowledge it comes with a 12.5mm rotor, which is the max legal size in most venues (again, to my knowledge)

I love that motor though, I have a Duo 1 13.5 in my 1/12 scale and it takes ALL the boost my LRP Stock Spec can give out and still doesn't get hot. It revs out like a low-turn mod, best boosting motor I have ever run.
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Old 02-12-2012, 06:12 PM   #327
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To my knowledge it comes with a 12.5mm rotor, which is the max legal size in most venues (again, to my knowledge)

I love that motor though, I have a Duo 1 13.5 in my 1/12 scale and it takes ALL the boost my LRP Stock Spec can give out and still doesn't get hot. It revs out like a low-turn mod, best boosting motor I have ever run.
I'm running a blinky class.
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Old 02-12-2012, 06:25 PM   #328
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Originally Posted by Autocratic View Post
For the 17.5 Rev, what is the bearing size front/rear? Also, what size are the timing plate screws? For some reason they seem to strip easy.

Also, what's the big difference between the stock Revtech rotor, the 12.5 HT, and the 13 HT rotors and what could I expect out of the latter two vs. the stock?
3/8 by 1/8 by 5/32 I do believe. Not sure on the screw size.... maybe M2x4?

Don't know on the 13HT, but a 12.5HT will have more bottom end than stock, so I'd expect it to run best with less timing (closer to centerline) and a few more teeth of gear. The stock purple rotor feels consistent through the whole RPM range, especially with a smooth ESC like a SP Cirtix.

The 13 compared to the 12.5 will run a tad hotter due to less air gap.

Hope this helps!
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Old 02-13-2012, 04:14 AM   #329
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3/8 by 1/8 by 5/32 I do believe. Not sure on the screw size.... maybe M2x4?

Don't know on the 13HT, but a 12.5HT will have more bottom end than stock, so I'd expect it to run best with less timing (closer to centerline) and a few more teeth of gear. The stock purple rotor feels consistent through the whole RPM range, especially with a smooth ESC like a SP Cirtix.

The 13 compared to the 12.5 will run a tad hotter due to less air gap.

Hope this helps!
So the duo 1 had a 13mm rotor? Will the new high torque rotors fit or work in the duo1?
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Old 02-13-2012, 04:52 AM   #330
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So the duo 1 had a 13mm rotor? Will the new high torque rotors fit or work in the duo1?
Can't help on that one I traded away the only Duo 1 I ever owned quite awhile ago.
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