1518/1520/1717 Replacements

[The Dude]

Originally Posted by Pdelcast

They will be coming back soon...

Not positive about the 1717 tho. We do have replacement rotors for the 1717 on the way.

You make this day a great day !!!.... so I gonna run my MGT just now !! (7:53 a.m )

[skellyo]

Originally Posted by Pdelcast

They will be coming back soon...

Not positive about the 1717 tho. We do have replacement rotors for the 1717 on the way.

Originally Posted by The Dude

You make this day a great day !!!.... so I gonna run my MGT just now !! (7:53 a.m )

I wouldn't get too excited:
http://www.rc-monster.com/forum/show...12&postcount=8

[Unsullied_Spy]

Well that's good. Is the 1717 just not making enough profit to be worth producing?

[DrKnow65]

How much more power does the 1717 put out compared to a 1518? I have both, and it seems to me that the 1717 doesn't have the acceleration the smaller can does... The KV's are a bit different, but I think there's more to it than the max RPM?

I think it would be neat to see a "dyno chart" of both motors and maybe a 1521 (Steve) Neu as well :-)

Wonder how time consuming it would be to rig up some kind of dyno to load the motor (airplane prop with an added weight on it?) and use my MMXL to log the data. Hmmmm...

[lincpimp]

From what I can tell the 1717 should produce power levels between the 1521 and 1527. Patrick sort of verified this.

Since the diameter of the rotor is larger the 1717 will not spin up as fast, but will produce more low end torque than a 15 series motor in the same length.

I noticed a big difference in torque on my lst, compared to a neu 1521 1y (1600kv).

I think a large 17 series lower kv motor would make a great 8s choice for larger MT conversions, like the big savvy, lst, and cen trucks. Pair it with the mmxl. Would also be a good option for the current crop of 5th scale 4x4s that mimick the 1/8 buggy/truggy layouts.

The 2028 is a HUGE motor, and probably overkill for everything lighter than a 5b/t. Would be nice to have something between it and the 15 series motors.

[pinkpanda3310]

Originally Posted by lincpimp

From what I can tell the 1717 should produce power levels between the 1521 and 1527. Patrick sort of verified this.

Since the diameter of the rotor is larger the 1717 will not spin up as fast, but will produce more low end torque than a 15 series motor in the same length.

I noticed a big difference in torque on my lst, compared to a neu 1521 1y (1600kv).

Sounds like it's on parr with a 1524.... I have one of those and it should be easier to mount and spin up better than the 1717

[Shonen]

I've run my ERBE with a 1717 on 8s multiple times, and hit top speed every single run I've gone out on. The highest RPM I've gotten is 43k, but the Revo does have a huge amount of gears between the motor and the wheels.

I think the Mamba controllers would be awesome with an RPM limit feature, for this very reason. I've ran (carefully) a 13800Kv motor in my TC5R and if the MMP had RPM limiting then I wouldn't have to worry as much.

[Shonen]

Shonen do you give it full throttle in the air? If it's just a speed run then wouldn't drag play some part in keeping rev's down?

I can try to free rev it in the air and see what the log says, but 7.9% RPM loss sounds fairly low for aero drag on top of the drag from all 28 bearings and 21 gears. The only ceramics are in the 1717 itself, all the other bearings are either stock or Boca 99c. But yes, aero definitely does play a role in reducing top RPM, especially when it's geared for 75mph.

[a6m532]

Are there any chance the replacement for 1518/1520 AND 1717 are releasing soon?

Apparently not, I'm researching the exact same question myself now lol. I'll probably just sack up and buy a 1717 for 150 on fleabay lol.

[bigblkblazin]

looking for a 1717 rotor replacement anyone have a line on one ?

thanks in advance