schulze 18.97kwf, 5s lipo, what motor
 

I bought the schulze 18.97kwf about a year ago when everybody thought it was the king, now, a year later its just so-so but I own it so i'm gonna run it. I'll be running 5s lipos in a fairly heavy e-maxx(lots of aluminum) I'm more interested in run time and explosive power than top speed. I was thinking a feigao 7 or 8xl??? Anyone in minnesota have any brushless knowledge, the local hobby shop has more questions than answers when I roll in. Thanks guys!

I believe that esc was deisgned to be a perfect match for the Plettenberg Bigmaxximum, so a motor of similar specs would be ideal.

no sir
 

i've read lots of threads(thanks guys) about the big maxximum and serum himself states equal performance from a 7xl at 1/4 of the cost, so you indirectly answered my question, i'm going with a 7xl from fine design cause blue matches my trucks color scheme, can't wait to show you guys, an r/c solutions extended cybermaxx t-maxx chassis w/ cage and a schulze 18.97 kwf with I guess a 7xl on 5s lipo! I wanna run a slipperential what's taking so long??? is anybody reading this????? I need brushless help in minnesota!!!!!!!!!!!

At the moment Mike is snowed under with BL conversions, so the Slipperential is having to wait a little while until final testing/production can begin; but he's getting there. The finedesign motors are just like the Feigaos, only blue, so they do look nicer I must admit. You will want the Rc-monster motor clamp/heatsink too to prevent the ends of the motor popping off- or it is possible to screw them on like MM motors with tiny screws.

BTW, that is what I ment by 'a motor of similar specs', as in a similar KV rating / can size etc. The price of the BigMaxximum is just silly for a motor, but it does look nice with those twirly cooling fins...

Wait a second... 7xl on 5s? I thought you didn't want speed?!

nice rusty!
 

I don't want speed would a 8 or 9 xl give me more torque and runtime?? that's what i want to know, btw, that rustler is sick man is that a custom chassis? love the mid mount motor!!!!!!!!!

I run a 7xl on 5s, it was insane but run hot all the time. 9XL will run better of your chosen options, but its still really fast with the right gearing. I think a 10XL or 12XL might be better, it will be tamer and run much cooler

9XL on 5s lipo is a good combo especially on speed because of greater torque than 8 or 7XL ,the 9XL will run cooler also

thanx
 

thats what i wanted to know, anyone want to place bets on how long the schulze controller will last?? Anything i can do to help it??

If you talk to Serum, It will last as long as you don't hook it up

I wouldn't use the 7XL on 5S, it's too hot; You have got the controller, why don't you save a little and get a Neu motor? they are a lot better than the feigao's.

Yeah get the 1600 kv NEU motor and then you can even go to 6s lipo if you want to but not sure on that schultze with 6s lipo

hmmm
 

i just can't see spending over twice the money on a motor and not getting twice the performance, or are the neu's THAT MUCH better? and won't the 2 pole feigao be easier on my schulze which I already read bad things about? thus far my conclusion is a 9 or 10xl do the xl nemesis/wanderer motors from r/c-monster come pre wired with plugs as do the L cans? Are they blue they look black or blue in the picture, I can't tell, THANK YOU SERUM!!!! This forum is the shiznit and I appreciate all the help guys!

Yes they are, I was thinking the same thing as you till i bit the bullet. I got a 1515/2.5df and all i can say is WOW!!! its kv is similar to the 9XL but runs more torque and much MUCH cooler. Very awsome on 5s and i think it could handle 6s as well

4 pole torque
 

thanks crazyjr, eventually i'll get the neu but i'm stepping up from an hv-maxx so the feigao will already be that much better, but please, stop biting bullets i appreciate you sharing your knowledge, but it's just not worth the risk, maybe get a chew toy! j/k i'll run a feigao then when i get the money buy a neu and e-bay the feigao. Let's hear it for the brainless masses on e-bay that allow us people that read forums and what not to buy low and sell high! hip-hip, hooray, hip-hip, hooray!

The Neu motors are more efficient than the feigao/wanderer/nemesis motors. Since you've got a controller that is capable or running a Neu i would jump that opportunity.

The ebay idea is neat too, you can always decide what to do. If you depend on a setup, and can't have a thermal shutdown (in races) get a neu.

For a 5S setup i would take a 10XL, and if you need speed, get a 9XL and GOOD lipo's. (batteries are usually the limiting factor for the power a setup can deliver.)

Biting bullets was a figure of speech (needs salt), but serum is right if you can swing it go with the neu first. the 1515/2.5 is equivilent to a 9xl in kv, I radared mine in a G2R revo with a Emaxx tranny in 2nd gear with 5s lipo and 20/51 gearing at 34 MPH

4 polers
 

is the neu more efficient because of the four pole setup or are they just more efficient motors? I am sick of doing things twice so i'll probably start with the neu, crazyjr and serum have done the learning the hard way for me, so now the question is: WHICH NEU MOTOR DO I RUN ON 5S LIPO IN A HALF ALUMINUM E-MAXX, MORE CONCERNED WITH POWER AND RUNTIME THAN SPEED

Damn Yous
 

affter all this i pretty much figure i need a neu 1515/2.5 but they are out of stock, ahhhhhhhhhhhhhhhhhhhhhhhhhhhh!!!!!!!!!!!!!!!!!! I WILL BE RUNNING 5S LIPO (18.5V) LIPO CAN I STEP UP TO THE 2200/KV NEU????

Thanks man! Yeah I made the chassis myself, and I've recieved many compliments about the mid-motor as well. When do we get a pic of your truck, or do you have them somewhere already?

Hey crazyjr are using stock revo diff gears or 1/8th gears (ratio wise), because if there stock then you've got the same ratio as me with the same motor and voltage, and I would have thought my setup would be at least 40mph, I did have a fair bit of tire ballooning though.

I agree with serum and crazyjr about getting the neu instead of a feigao.
When I was looking for a brushless setup for my maxx I was thinking about the neu, but decided to go with a feigao, because of the price.
After I got sick of watching motor temps and burnt out 2 quarks I decided to get a neu. Now nothing gets hot, it has more torque and I can play around a lot more with the gearing without up setting anything. Runtime is a bit better as well.
I don't know about running the 1515 1y (2200kv) on 5s. I think it could definitely do it, but if you want runtime and reliability and aren't worried about just doing speed runs (not that the 1515 2.5d doesn't have good speed), then I would stick to the 1700kv motor for 5s and the 2200kv motor if you use 4s. Someone who has used the 1y on 5s can probably give a better answer though.

I don't think the neu motors are more efficient just because they're 4 pole since the lenher's are very close in efficiency and they are only 2 pole.

1/8 diffs, I crushed upgraded (integy cups and cases) with quark and 9XL on 5s. The 9XL/MM/5s i was runing with stock diffs was 37mph, according to BrianG's calculator i should be runing 37mph, with 3.7 set as v per cell and no growth selected

That makes sense then. Stock dffs add about nearly 6 mph over 1/8th in the calculator and I had some tyre ballooning.

thanks patrick
 

if the neu motors are easier on the controller then it is a no brainer, i'm glad I decided to monitor this thread lots of good advice, truck is in parts now build pics will come, anybody else have problems with maximizer ultra diffs???? mine continually break loose i'm thinking jb weld

I read some where that the quark likes the neu's, because of something to do with timing, but I don't think the difference I saw could be that big if it was just timing and since the batteries weren't as hot as well, I don't think it draws as much current.

Do you mean the crown gear screws come loose on the diffs? My FLM cups have done that twice now.

Lock the screws with locktite.

I did both times.

I did run my G2R Revo on a Quark and NEU 1515 1Y on 4s Lipo set up and it did run great, I used it for racing. Geared 16/51,no problems with thermal shut down until the temps here in Indiana got hot,then I started to have thermal shutdowns, I can easily avoid the thermal issues by lowering my gearing but you have to buy the bigger ofna spur gear cuz you can only use 16 tooth as the lowest pinion due to the size of the motor. Then i switched to my hacker 9XL which is similar to NEU 1515 2.5d and had no heat problems at all with same gearing, With NEU 1515 2.5 d will probably run cooler than my Hacker 9XL. You may go away on NEU 1515 1 y if use for bashing only on 5s LIPO (It will be ballistic )and get the bigger ofna spur gear (email MIke) to gear down accordingly.But better get the NEU 1515 2.5d if it is in stock for it will have no heat problems

keep it coming
 

I love the knowledge! Patrick- i have the maximizer "ultra" diffs, with the springs and plates for internals instead of spider gears, basically a slipper setup, and no matter how many plates i stuff in there they eventually slip and i go nowhere Luvsrc- all my maxxes run monster gt spur gears, they slip right on and are mod 1 pitch and stand up to the biggest nitro's i can throw at 'em

Good point; are you using 6 or 12 friction pegs? and are they durable? what is the diameter of these pegs?

they are the same as the Emaxx for pins and holds 12 as well, I got a couple of them

Awesome! are the team associated pegs any better than the traxxas pegs?

stock
 

I use 12 stock mgt pegs unsure of diameter, I always crank it tight with no slip or it'll burn em up but with attention to gear mesh i get good life out of them

also........
 

nice assortment of kimbrough and delrin monster gt spur gears on ebay

Yeah, i've seen them. I wonder if the white GPM delrin is up the task. i don't think the actual teeth is the weak spot, but the pegs seem to be the weak spot.

I doubt it, the slipper is the same exact thing as traxxas, with the exception of the spring and locknut