RC-Monster Forums

RC-Monster Forums (https://www.rc-monster.com/forum/index.php)
-   Brushless (https://www.rc-monster.com/forum/forumdisplay.php?f=12)
-   -   Lehner Basic XL 2800 on 24 volts? (https://www.rc-monster.com/forum/showthread.php?t=2687)

extremexmods 04.02.2006 02:39 PM

Can a BK 36120 Brushless Car Controller take a 2280 6 wind (1233 rpm/volt) on 16 cells, or would that pull too many amps or come to close to the 42,000 rpm limit?

MetalMan 04.02.2006 03:16 PM

Only 16 cells? That's only about 23,000 RPM. If you use 30 cells, then you would have a nice setup. The motor would be spinning at about 40,000 RPM max - a nice spot to have it.

extremexmods 04.02.2006 07:53 PM

That 16 cells was a typo. I meant 26 cells with the 6 wind (1233 rpm/volt), which would be 38,469.6 rpms. But now I am thinking 36 cells wiith an 8 wind (925 rpm/volt) which would be 39,960 rpms. Which setup would overall be better? Would the BK 36120 Brushless Car Controller handle any of these two motors. Looked at the finedesignrc.com website and saw thes motors are rated at 2500 watts and 3000 watts. How many watts would this setup really have?

squeeforever 04.02.2006 08:01 PM

its very capable of that but it depends on what your batteries can deliever. i think about 26 or 28 cells would be nice with the 6 wind.

extremexmods 04.02.2006 08:01 PM

That 16 cells was a typo. I meant 26 cells with the 6 wind (1233 rpm/volt), which would be 38,469.6 rpms. But now I am thinking 36 cells wiith an 8 wind (925 rpm/volt) which would be 39,960 rpms. Which setup would overall be better? Would the BK 36120 Brushless Car Controller handle any of these two motors. Looked at the finedesignrc.com website and saw thes motors are rated at 2500 watts and 3000 watts. How many watts would this setup really have? What is the fastest top speed gearing I could safely use for this setup? Absolutely no lipo cells in my truck, I do not want the risk of them catching fire and destroying my truck, I can get very inexpensive and brand new GP 3300 loose cells (7 for $25 includind wiring plus 12.00 shipping, ebay seller pointingmouse) these will power the truck, nothing else. Will my setup work?

MetalMan 04.02.2006 08:22 PM

Lipos don't catch fire unless misused extremely badly...

36 cells with a 3000watt motor is the way to go ;). Just hope that it doesn't roll or hit anything at full throttle!
The batteries are the limit, so the cheaper you go on batteries, the lower the performance. If you went with IB3800s, you could push out more power than with GP3300s.

coolhandcountry 04.03.2006 07:13 AM

I have a 2250 10t kv 1184. I ran it on a 26 cells. I never got it to go exactly right cause it would destroy stuff. I think the 2280 6 t or 8t would do good with enough cells.

extremexmods 04.03.2006 07:22 PM

But would it do good on a BK 36120 Brushless Car Controller? Also, why do the lehner motors have 2 different watt ratings (lehner 2280 motors are rated at 2500 and 3000 watts)?

coolhandcountry 04.03.2006 07:39 PM

If you got to there web site it is accually higher than that. They rate the 2280 up to 4000 watts of power. The 2250 is only up to 2800. For the 4000 watts of power you are going to need about 40 cells. A good nimh cell is good for about 100 watts of power a piece.

extremexmods 04.07.2006 06:39 PM

Could the BK 36120 brushless car controller be used with a 12s lithium setup and a 2280 motor? Has anyone of of the BK 36150 brushless car controller, and would this be a better one to get? Does it also have the 42,000 rpm limit? Where can I get on other than www.BK-electronics.com? That site is way overpriced compared to this one, but only the36120 is available here, not the 36150?

boss 302 04.07.2006 06:48 PM

mike can get you the 36150 and it still has the 42000 rpm limit.12 cell lipo would put the controller just over its limit.

coolhandcountry 04.07.2006 06:55 PM

Well 12s lipo on a 2280 I really hope you have extremely strong drive train.

boss 302 04.07.2006 06:57 PM

yeah i dont think the drivetrain could stand that much power for more than half a minute.

extremexmods 04.07.2006 10:01 PM

Could the controller take 11s lipo? Would the drivetrain be better off with a 2250? Could I use this setup on BK 36120 controller or do I need the BK 36150 controller? How much for the BK 36150 controller?

boss 302 04.08.2006 06:28 AM

the controller can take 11s lipo and i would go with the 36150 if you are going to put that much power through it. with either motor you are going to have to have a really strong drivetrain.

extremexmods 04.09.2006 11:10 PM

Thank you.

Now, can someone tell me the song used in this video please? Everyone should watch it, it is a very nice video.

http://www.youtube.com/watch?v=40Mk3usgxPc&search=hurricane%20katrina

Hayden 06.18.2006 05:59 AM

Metalman is correct, some times we sell like 20 helicopters a week with lipo batteries to beginners without a problems, lipos are safe if treated correctly.

I’m going for a fast on road setup like you too:)

Btw use lipo there like nearly half the weight for around the same price!!!!


All times are GMT -4. The time now is 08:22 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.