brushless help for kuwait weather
 

hello,

need help for chosing E-maxx brushless setup :)

our weather in summer is 40-50 C (104-122 F) so i need brushless setup that can work with this weather. thanks

Hi Q8! If you want a setup that doesn´t thermal on you; get a mamba-maxx controller, 4S lipo´s (such as the maxamps 8000mAh packs) a Lehner 1940 motor with a 2000kv would do very nice.

thanks but need speed too
i wish to make my maxx hit 45-50 mph

btw we can not order lipo's it not allowed

How about a pack of Ice on top of the esc & motor!

WOW 104-122! That's seriously hot!

BTW.....are you with the Armed Forces?

and last but not least.............Welcome to the RC-Monster forums!

lol we don't have ice

sure i am not with Armed Forces :)

Just curious.

Regardless of the ESC of choice. Use a fan!

An efficient motor such as the Lehner is a must.

A 1940/7 with a Mamba Max and 4S is one good combo. A Quark (with heatsink & fans), Lehner 1940/7 or NEU1515/1Y and 4S or 5S would be the next step up. Use a UBEC with any and all of the combos.

Welcome!
In those kind of temps, I would not suggest a Quark at all. MM would be good with a Lehner 1940. But if you are looking at 45-50's, then a 1950, but not sure if the mm can do that motor.

Also guys, he said no Lipo allowed....that must suck!

For those speeds and given the current draw of the 1950's i say probably not.

If the MM can take the XL motors, why shouldn't it work with the 1950s?
Amp draw is about the same, with extra efficiency.

That was my thinking. In those kind of temps, a Quark would be hard to keep cool IMO. I have enough of a hard time in 95 degree F weather! But for the speeds he wants, not sure how he would do it. He could go, lehner 1950/Qaurk 125b or MM on 18 cells maybe....not sure with NiMh to get to 45-50...he cannot get lipo I guess.

Daf,

The MM would absolutely run the 1950 on 4s. I have no doubt. I almost bought the 1950/7 and opted for the NEU1515 at the last minute.

I was thinking he'd be running 5S or 6S. 4S on a 1950/7 would only get into the 27000 RPM range. Kinda low. 5S seems suited for the job by bringing the motor into the 34,000 range. If he's looking for 50mph, I think he needs to look at 5s or maybe 6s.

What do you think?

From my understanding, hitting the 50's is not that easy to do. On my 5s it was not capable with a 9xl anyway (low kv). Maybe 5s on 7xl, but then you're looking at high temps, especially in 100 degree weather. I think the MM could do it, but how well would be the question.