Help with a Lehner Brushless Supermaxx

Hey there pplz, I had quit my R/C passion for a year because of all my univeristy work and applications that i would have to do in the near future. But now im done with all of it and need your help.

I have a supermaxx'd brushless system and completely forgot about my setup and how to work it.

If i remeber correctly i had a Lehner 18120(maybe 150 ill check) controller and Lehner 1570 engine... running with 12 3300's in series, and 16 3300(untested). Now the Y adapter i made before was actually in parrallel and this made my car slower in 2nd gear which was really strange, so now hopefully im going to get a correct y adapter done for me.

1st question: the receiver pack in the pics(i need a host) is a 4.8 volts 250maH nicad battery. I remeber being told not to use over 5 volts for a reciver pack so i bought this one. Will it work?

2nd: my spur gear pinion are 17/72. Is this fine? Keep in mind i have the supermaxx differentials which change the gearing.

3rd: is there anything i should change if i want to use 16 cells instead of 12? i never had time to test the car with 16 cells beacuse of my y-adapter problem.

Please help me, not many people know about brushless in london!

[Dafni]

Hi Swift, and welcome to the RCM forum.

Not many people know about BL in London?? Well, you just found the best place for any BL / Maxx related info.

As for this Y wire thingy... I don't see the problem. Don't you just solder your stuff yourself? Get a couple of plugs, some wire, and go for it.

I always use 6V on my receivers (the 6V come from an UBEC, some kind of voltage regulator)

A Lehenr 1970, eh? Do you know the number of winds, or the rpm/V rating?

im checking now, its meant to be very powerful i remeber i wanted the best there was back then lol, and about the pics maybe you could tell me if my setup is ok i just really need a host.

Oops my bad its not a 1970 its a 1930 hmmm, and its written 4D 12 S i think(this is a guess the writing is all scribled out)

Could you give me a link to your receiver pack?

Thanks for your Help.

[Dafni]

Sure, here it is:
http://www.rc-monster.com/proddetail...=6vubec&cat=39
Highly recomended by most of the users here.

As for your Lehner 1930, if it's a 12 turn, it would have 1743rpm/V. Gear it for 35-40mph and you should be fine.

You're welcome.

ah i just found out i had a stealthy mounted receiver pack on it already. It seems to be a black 5 cell ballistic 1100mah 5 volts pack. I think that'll do. And 17/72 is correct gearing with supermaxx diffs?

[Sneeck]

Hello Swift nice to see you found RCM ;)

Good luck with your maxx.

got some pics!

http://photobucket.com/albums/d158/P...ent=Thecar.jpg

[coolhandcountry]

More then likely i would guess you are running a 8d 12 s lehner 1930. I have a 6d 10s 1930. It works well for my maxx. Check the back of the motor to see what you are running the motor in s or d mode. I run mine in s mode and has no problems.

ill give it a look...can any1 answer my gearing question? And if i have to change the setup for when i use 8*2=16 cells?

[coolhandcountry]

It really depends on how the motor is setup.If the motor is set for a 8 turn then you need to gear lower. If you have a 12 turn setup then you have to gear higher.

[pcnutz]

swift did you buy the rumrunner bulk buy? if so your running the 1930/5. do not go over the 5.5 volt rx pack on your older bk controllers

[Sneeck]

Get that mess out of the controller wire's. That might give a problem.

Yes i think it was the bulk buy. How can i check exactly what motor i have? maybe call rumrunner and make them find out what i had ordered?

[coolhandcountry]

My lehenr has a number on the end of it stamped in the metal. I not sure if your will or not.