Big Heavy Aluminum Emaxx Needs Bl Motor Sytem Recomendations
 

I have an Emaxx that is totally aluminum and very heavy. I want to add two brushless motors and one good speedcontrol. I hand an HVmaxx. It was pretty good. Allot of torque in 2wd. I want more torque and more speed. I need recomendations. I want to maxx this truck out.

Welcome to the RCM board, JCUEVAS. No need to yell, though ;)

I would advise against a dual setup. Single BL is better in all aspects. More efficiency and relability. Dual is only for looks.

How many cells do you want to run? And what is your goal, speed or runtime?

DAF

what yellin' Daniel? ;p

Welcome to the boards though!

A single bigger motor will run more efficient.

a 9XL on 20cells is about 2-3 times as strong than one HV-maxx.

Got pics/specs of your truck? because you got aluminium trucks and aluminium trucks.. What does it weight? how fast you want it to go?

imthankyou guys. im gonna say its more than 20lbs. i want allot of speed along with allot of torque. i want the best. what kind of speed control do i need for a 9xl? i will post those pics for you guys when i figure out how to compress them. will do it asap since you guys have been so helpful. thankyou

pics

more pics

Hello you can go wiht the 9920 controller, (up to 20 cells)
by the way nice truck;)

http://www.rc-monster.com/proddetail...warrior&cat=21

That is a heavy truck if it is 20 lbs. Is that a guess or weighed? If you have no other way of weighing a bathroom scale works to give you a estimate. Weigh your self with and with out truck. At 20 lbs you going to nee d a big motor.



I can not open the pics. What program do i need to open it.

20 lbs... Holy crap and I thought my full alum truck was heavy. But it looks awesome, nice ride.

9920 and 9xl on 20 cell's will give you enough speed.

You need winrar.

Have I ever mentioned to you guys that my dual BL weighs 14.5lbs? :L:

Yeah, it can't really weight 20 lbs, my aluminum savage weights less, with 18 cells. (and a savage is heavier build than an emaxx) and i used pretty heavy stuff, and this e-maxx is not using 1/8th diffs. (not that i am proud of her weight....) weight sucks.. :p

Do as Country discribed, with the bathroom scale.

The setup i would use on a truck, is a 7-8XL with a 9920, you can use it with 12-18 cells and it will be plenty fast. (and if you just want more torque than your current setup, the 7XL on 12 cells would out perform this hvmaxx.

And you really need other wheels with a strong BL setup, it will shred the hex pretty quick too.. (cant really tell, those rimms look like the orion freshkicks.. the spinners are kind of in the way.. :) )

AND, against some stupid rumors, will be just as smooth as the weak ...er, sorry, mild sensor system.

;) i hear you....

how bout the 6xl? isnt the lower ones faster? i got a bl 4-tec with a 5.5 and its out! crazy fast! did all the possibe hopp ups to it. its aluminum and graphite.

How fast does it go?

You can't put 20 cells on the 6XL. a think max 14cells
I also thougt this was how it is. how higer the rpm/volt the faster the motor.
But now one drive's a 6XL because it wil run to hot in your truck
And the run time is bad.
Your best will be the 8XL or 9xl it wil be faster on your truck
because it will run les hot and your run time wil be much longer.

Just look around this forum there are some grazy speed freaks out there.
And you will see that they don't drive a 6XL

I tried a 6XL based on another online shop's recommendation and I loved it -- for the two minutes it would run before the controller would thermal out and shut down. I could run it 1/2 throttle at about 15mph and STILL pull a wheelie. This was on a heavy aluminum Emaxx with the 9920 controller and 4s Lipo.

After the 9920 started to melt the shrinkwrap I went to a 7XL motor and am having much fun running for 20 minutes with no problems! (added a fan to the 9920 as well) I don't get quite the wheelie action I did before, but more battery might take care of that! :L:

So, if I were to do it over I would not buy the 6XL as I now have a pretty blue $90 paperweight that I have no idea what to do with...suggestions are welcome!!

In your case I might even go 8XL as it would be even easier on the controller I think.

Maybe your 6XL would be good on 3S in some smaller RC.

Onroad drift car?

The 6XL is bigger than the smaller RC cars I have!! It won't fit in my T2 or my TA04, and it would make the xxx-4 tip over with all that weight on that side!!

Maybe a BL hovercraft...yeah, that would be cool!!!

THANKS FOR ALL YOUR HELP. WILL POST MORE PICS OF BOTH MY RIDES. THANKS AGAIN

how bout the lehner motors. the one thats 250.00. is that one good and fast. what type of speed control do i need for that?

I run that one on my stocker emaxx. It will notbe good for a heavy emaxx. I think the 1940 wouldbe better than the 1930.

The 1940 is a very good motor!! one of the best. but the feigao's don't preform bad either. difference is in the quality of the rotor. the 1940 has got segmented magnets, which makes it better/ more efficient in partitial load.

But mike is selling wandere now no more feigao's the wandere seems to have a beter bearing tho.
And from what I have heard the lehner 1940 will be beter than a wandere but it wont be thet much tho and it is more then twice te price

I still have a bunch of Feigao motors. Just no xl Feigaos. The Lehner "19" series motors are a premium product sold for a premium price. The Feigao and wanderer is still the best bang for the buck available.

Okay bud wich lehner will be beter than the wandere9XL
And in what way will it be beter.
because they told me that the lehner is beter bud not very much?

It is better, it has got segmented magnets and that's why it is better on a partitial load. it will get less hot, because of that AND because it should have got a higher efficiency. But like i said earlier. the 9XL IS the best bang for the buck.... you hardly will notice any difference, IF you notice any difference. the 9XL will be stronger than a 1940. it takes a 1950 to be equal in torque/power, and the 1950 takes 4mm bore pinions instead of 5mm.

Actually, Serum, I would put my money on the 1940 over the wanderer/feigao xl motor in terms of power output. It simply is a better motor, though the price is much higher as well. The 1950 motors also carry a 5mm shaft, and would definately out power the wanderer xl. The true benefit of the "19" series motors is the partial load efficiency(r/c cars are most often under partial load) and premium building materials. They will provide the power with greater efficiency, cooler temps and smooth performance.
Having said that, I doubt the average user would detect a difference in actual driving performance vs the cheaper wanderer/Feigao motors. If you are budget restricted, the wander/Feigao is the obvious choice. If you simply want the best, the micro controller and Lehner "19" series motor is the premium system.

From a German tester, who tests pretty much of all the BK stuff, i understood the XL was the same in torque and power than the 1950. Or do you mean that you personally would take a 1940 or the wanderer XL, because of it's overall preformance/temps?

I really didn't knew the 1950 came with a 5mm shaft. the BK site tells us it comes with a 4 and the other 19 series are available with a 4 as well.

I can confirm the 5mm shaft on the 1950. But I was surprised when I got, thought it would have a 4mm shaft.

that is pretty cool imo!!!

A 4mm shaft might be a pita to find mod1 pinions for..

It is not hard at all serum. You are at a good place to get them. I am surprised at the 5mm shaft on the 1950. I have a 1930 and would compare it to a feigao or bk L version even though it is a smaller motor. My lehner 1930 seems to run cooler and more efficent as well. I guess the higher tolerances and quality of materials equals a kick butt motor IMO. :D

I got a setup
 

I got a setup but now my truck cannot handle this power. i bought the hv 4.5. its fast enough for me but the amount of tourqe keeps killing my diffs. what kind can i buy or should i buy without killing my wallet. Also my center shafts keep falling apart. there mip cvd's. my diffs are robinson racing with stock spider gears and integy diff cases. my bearings keep burning up also. i need help and recomendations please.

How about RC-Monster dog bones for center shafts and Maximizer 7075 aluminum diff cup, modified gear and 3 mm screws?

I have the aluminum cups and the 3mm screw setup. I destroy the pinion and the spider gears inside the diff. im running the truck in 2wd. Do i just have to much power to the rear of the truck?

I also put the robinson diff gears in the truck. DESTROYED!

Sounds like you need to upgrade to 1/8 diffs/

Yep, FLM hybrids & 1/8 HB diffs, RCM center dogbones. Thats about the only way to go really- only UE offers another option with their 1/8 diffs, but they are way expensive & never in stock. Nice truck BTW.