Upgrade to a Lehner... Which One?

[glassdoctor]

Hey mike, I ordered a Neu 1512 (1900kv) a few days ago for my 1/8 buggy and maybe a future truggy project. I'm glad to hear you will have them soon... I would have waited a week if I would have known...

It's a shot in the dark, but I thought the shorter 1512 would work fine in a buggy. I hope I didn't screw up not getting a 1515. What do you think? Have you run a 1512 yet?

These look to be awesome motors and a good guy building them too. Better than importing stuff from europe... no offense to you euro dudes. ;)

[danverz]

Originally Posted by jhautz

My calculations say that it would need to be arond 51/18-20 on the 1950-7, and 51/20-22 on the 1950-8 to reach 40-45mph on 5s. Does this sound reasonable?

I can say yes, it is. I have a Emaxx with that 1950/8, UE diffs, gorilla single speed trasmission
and strobe with mod1 spur. I run 5S lipo. With a 18T pinion I stay under 54°C on the ESC and
the motor.
Its power is impressive, you can wheelie while running from over middle throttle without
problems. It's also very fast. Do not know exactly, but it seems to me to be able to reach
70, 80 km/h on bad terrain.

In my bashing yard, the 18T is perfect. But I think you can reach 100 km/h or something
like that with a 20T pinion without loosing in torque.

I love Lehner motor just because they do not get hot, and they also keep the esc
temperature more than reasonable. In my brushless experience, the thermalling problem
is at the top list of the iussue of this technology.

Ciao,
Daniele

[Serum]

LOL!

I would love to try some of their motors. By cooncidence, i was just going thru their motors, and i personally was having doubts what motor would be nice for a buggy/lightweight maxx. the 1512 should be more than enough, but the torque of the 1515 would be awesome. and Mike has got a good experience with the 1515's. I guess you can't really buy a wrong type of motor for a buggy.

On how many cells are you going to use it?

[Serum]

@daniele;

it sure is, that thermalling thing!

[glassdoctor]

I designed my 1/8 buggy to work with standard 6 cell race packs or two lipo packs of similar size. I think I have ditched running nimh for the most part, so it's 4s lipos now.

I want to stick with 4s lipos to make things simple, but I could always change that. I might actually try a 3s if this thing has crazy power for my smallish track, like my franken-hacker motor I've been running. The buggy is just retarded fast on the maxamps 4s 6000s. And it's thermalling at about 6-7 minute mark under race conditions.

The controllers I have now don't like 5s and 6s. I think lower kv motors and 6s is the way to go but I can't do that now unless my new 125b decides it wants to be good to me.

I got a quick test run with a Feigao 9L and it runs strong, and it gave the MGM the same fits as my hacked hacker 12x.

[RC-Monster Mike]

The smaller Neu motor should do just fine in the buggy - it would probably do very well in an emaxx as well - It doesn't seem like I am even giving my motor a workout.
rene - I didn't dial it back except with gearing - the Quark controller i smooth enough and I only am running 4s Lipo.