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Losi Mini 8ight ESC & Motor Thread

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Losi Mini 8ight ESC & Motor Thread

Old 01-23-2012, 08:06 PM
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Default Losi Mini 8ight ESC & Motor Thread

Losi Mini 8ight ESC & Motor Thread


Intro
With the Losi discussion thread over 200 pages now, its time we start making threads more concentrated so we can find the info without sniffing through hundreds of pages of chat. Lets keep this thread dedicated to finding the best motor options for the M8, if we come to any kind of consensus, I will update them to the OP, so we can send people to one place when wanting to look over the experience people have had on the various set ups and ESC/motor combos we run on our M8's.

The Hunt
We are looking for great set up for racing, bashing, and the fastest thing we can stick in the damn thing. If you are satisfied with either the stock ESC or motor, that is fine, this is for people looking for better options, or looking to push the M8 much further then the stock electronics will allow.

What We Need from YOU
What I'm asking is if you are running a aftermarket ESC or motor or both, you please post up the details. The more the better.

Important details to include.

- Pic of the installation and any details on what was needed to get it running in the M8, like what type of pinion fits, if you had to mod the motor mount, chassis, etc.

- Info on the part installed, specs, price and if possible a link to where it can be purchased.

- Info on the set up and where & how you drive with it. Like pinion, wheels, track surface, racing or bashing or speed. if your running for some top speeds, the speeds you hit if you got them would be great, and required for confirming as the fastest.

- Temp readings, what are your temps after running, I guess a 4th pack temp check for set ups posted to get a little bit of better reading.

- Your experience, your impressions and what you think the good and bad points are. Don't be shy, elaborate as much as you can more details are always welcome.

Special Thanks
Thanks for any help or contributions to The Hunt. Hopefully the thread will be able to help people. Big contributes will get special thanks to highlight the outstanding work some have put into finding the best combos, that sometimes takes going through a few motors and ESC's.
__________________________________________________ ____________________________________________

Last edited by Rac3rX; 01-23-2012 at 08:59 PM.
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Old 01-23-2012, 10:48 PM
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Talking Nologicone's On-Road M8ight Setup.

Firstly, I declare my M8ight as an On-Road Poseur which will likely not see any dirt. I may do it if I have the chance to see Chris @ NorCal Hobbies someday. I bought it because I wanted to focus my attention away from Pocket Legends and needed a new rig to pick my brain on. Plus I have a soft spot for buggies like Tamiya Boomerang, Avante, Egress & Terra Scorcher. This M8ight reminds me of those toys that I could only drool at but no means to buy when I was younger.

To the uncle and cousin that would not let me touch their RC

To those that do not see the point of an On-Road M8ight, it is due to the time when my co-workers and I get to race our RC (after 2am) and the nearest RC track is a good 30mins drive with a $6 bridge toll. Plus...RC on a weekends is not an option with family. Therefore for those that do not see eye to eye why the hell my M8ight is an On-Road poseur, move along...we're a bunch of mature adults aren't we?

- Info on the part installed, specs, price and if possible a link to where it can be purchased.

Motor: Hobby King KDA 28-47 9T 4300kv brushless motor. Direct drop in replacement for the 1/16 Mini Traxxas Velineon.
ESC: S&T Quark Roadster 65A. Kindda hard to find nowadays. Leftover ESC that failed on the Merv Big Block journey.
Other: KO-Propo 2.4GHz radio/receiver, Hitec HS-5245MG, HobbyWing 3A UBEC with jumper set to 5V.

- Info on the set up and where & how you drive with it. Like pinion, track surface, racing or bashing or speed. if your running for some top speeds, the speeds you hit if you got them would be great, and required for confirming as the fastest.

Bash/race Surface: Outdoor highbite smooth asphalt parking lot when not raining, or sheltered low traction smooth concrete parking lot when raining.

Pinion/Spur, Speed: Running 3s, geared 18/58. 80% throttle EPA when using Duratrax Mini-Quake Vee tyres, 90% throttle EPA when using regular TC tyre/wheel combo & 100 throttle EPA when using TC Foams (28mm wide Front, 31mm wide Rear). Speed, nothing concrete to shout for. Slightly slower than a Merv running 3s using Neu 1112-1Y (3500kv) geared 33/45 on 26mm HPI Belted X-pattern tyres on TC wheels.

Setup: HR Composite Top Deck & Rear Tower, MIT Composite Front Tower. Shock caps mounted on lowest holes available on both towers, shock bottom ends mounted at furthest outboard holes on arms with 8 turns front spring, 4 turns rear spring. Stock oil weigh from Losi. Ride height adjusted where front dog bones are levelled & rear arms are levelled. Suspension hinges mounts are stock plastic ones during last run with factory set anti-dive, anti-squat and rear toe. Front toe-out roughly 2 with neutral camber and a mild negative camber at the rear, set in such a way when rear end is totally lifted and shocks at full extension, rear wheels have neutral camber.

- Temp readings, what are your temps after running, I guess a 4th pack temp check for set ups posted to get a little bit of better reading.


Temps: Around 112F ESC & 140F motor after a full pack on Zippy 2200Mah 20C 3s cell, running the Mini-Quake Vee tyres @ 80% throttle EPA. Method of running is 5 laps with an interval of 5 seconds for fun, laughter & bragging rights.

- Your experience, your impressions and what you think the good and bad points are.

Experience, Impressions: After meddling around with a CM2646, it was finally decided a bigger motor is required if I need to get the M8ight to keep up with the Neu/TC Merv. I am impressed with the heat reliability, and it seems like the 28mm (even a cheap one) is more than capable for light rig like the M8ight. I am looking forward to testing out more 28mm motors if possible and update if a super star happens to shine thru. Though presently the M8ight is a little bit slower than the Neu/TC Merv, it outhandles the Merv in tight sections EASILY with stock plastic suspension mounts, however it does get twitchy when on throttle, and understeers very bad when off throttle. I have to change the way I normally control my Merv, and need to "trail-brake" the M8ight into turns. The twitchiness on high speed was easily corrected with a mellow hand-eye co-ordination adjustment (read Human ). On low-traction surface, this M8ight is a star, for it would slide predictably and constantly like a Rally car, and steering is achieved with throttle and counter steering inputs. Very fun way to control an RC! Plus traditional suspensions setup are better than the Merv suspensions setup. It might be also due to the constant leaky GTR shocks on the Merv.

Untested upgrades:
Just installed aluminium suspension mounts. Since this is my very first buggy, my setup bible is definately Squirrel's RC Setup Guide 1-21. So far I decided since my M8ight is an onroad poseur, I went for Max Anti-dive 3, Max Anti-squat 3 and Min Toe 1. The front toe and all wheels' camber remain the same. I noticed I'm getting much much better steering off the throttle. I will update when I get to race the Merv again in a week & 1/2 time as I'm currently on assignment. Driving the M8ight myself without going head to head with the Neu/TC Merv holds no value for comparison.

Received HR sway bars set, but plan to install after a conclusion from the newly installed Alu suspension mounts.

Good: Great speed on 3s with reliable heat management. 3.17mm or 1/8" motor shaft shouts reliability over stock motor at 2mm. Novak Mod 0.5 Alu pinions available in 11~13T, 14~16T & 17~19T for the 3.17mm shaft. Hyperion pinions available separately from 11T up to 16T.
Novak 11~13T Mod 0.5
Novak 14~16T Mod 0.5
Novak 17~19T Mod 0.5
Hyperion Mod 0.5 Pinions, please scroll down because they are available in 2.3mm or 3.2mm bore sizes.
*Disclaimer: I'm not responsible if you click & ordered the wrong one

Bad:
DREMEL & modifications needed. Needs to grind chassis where motor sits. It is obstructed in such a way that the motor shaft is not parallel to the spur. Can be easily noticed by the amount of force needed to slide the motor onto the mount, and when meshing the pinion/spur. I had to cut the chassis where it meets the bottom of the motor. They still touches but it is so much easily to slide the motor in/out and the pinion/spur meshed parallel. Seems like with a 58T spur, my gearing is probably now limited to 17~19T pinions due limited meshing distance. This means the motor has to be around 4000~5000kv range for my application.

Top deck has to be shaved off where the top of the 28mm motor meets with the deck. Yeah, it hurts my heart that I need to start cutting the HR composite that I had for less than 2 weeks, but the urge to run the 28mm Big Block (not right? 24mm motor ----> 28mm motor!!!) soldiered me on.

Space...it is very cramp for the rest of the electronics. Body mounts were raised by the height of a Merv's rod end hollow balls and as usual, you need longer screws and stuffs if you plan to go this route.

Weight...a fellow owner says his Velineon equipped M8ight has a tendency for the 3mm motor mount screws to back off after some track sessions. Extra washers and loctite solved his problems. Since the smooth surface I run the M8ight on is not as demanding as an off-road track, I just added extra washers and loctite per his advise, all good. *Credit to basshwg. The 28mm KDA motor weighs 135g from the specs online, but I yet to weigh it personally on my digital scale. This KDA motor is currently not in stock but the 4900kv is. Tacon has an exact same motor 2848-4300kv in stock, better priced & ships cheaper within USA.

I will update as I run this kit more and more, or add new variables to it. Cheers!





Last edited by Nologicone; 01-31-2012 at 05:07 PM. Reason: Added image for modified chassis.
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Old 01-24-2012, 06:10 AM
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Originally Posted by Nologicone View Post
Firstly, I declare my M8ight as an On-Road Poseur which will likely not see any dirt. I may do it if I have the chance to see Chris @ NorCal Hobbies someday. I bought it because I wanted to focus my attention away from Pocket Legends and needed a new rig to pick my brain on. Plus I have a soft spot for buggies like Tamiya Boomerang, Avante, Egress & Terra Scorcher. This M8ight reminds me of those toys that I could only drool at but no means to buy when I was younger.

To the uncle and cousin that would not let me touch their RC

To those that do not see the point of an On-Road M8ight, it is due to the time when my co-workers and I get to race our RC (after 2am) and the nearest RC track is a good 30mins drive with a $6 bridge toll. Plus...RC on a weekends is not an option with family. Therefore for those that do not see eye to eye why the hell my M8ight is an On-Road poseur, move along...we're a bunch of mature adults aren't we?

- Info on the part installed, specs, price and if possible a link to where it can be purchased.
I couldnt have said it better my self - i love the science behind the hobby but I dont have time for the track - just a guy who is finally able to come back to the sport - first car was a Tamiya Hotshot II and then there was a 20 year hiatus followed by a vendetta and now this (plus a couple helis).

On to the motor -
I will provide a full write up with performance, temps, and impressions of the motor when i am home. For now, i'll provide the abbreviated version. I had the chance to run the neu 1105 1.5y with the CC MP ESC on a 2S flight power lipo last night and the Neu didnt get very far past luke warm - the esc on the other hand got to the point where after 2 seconds of touch, you finger would get stung.
I'll pick up a thermo and a fan for the esc probably tonite or tomorrow.
thats all for now.
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Old 01-24-2012, 06:36 AM
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Nologi, g'damn that was some good reading. Great post. You tagged the first setup posted & did not disappoint, I hope other running custom setups drop in and share like you have. Thanks!
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Old 01-24-2012, 07:21 AM
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Originally Posted by 3deebee View Post
I had the chance to run the neu 1105 1.5y with the CC MP ESC on a 2S flight power lipo last night and the Neu didnt get very far past luke warm - the esc on the other hand got to the point where after 2 seconds of touch, you finger would get stung.
I'll pick up a thermo and a fan for the esc probably tonite or tomorrow.
thats all for now.
What was your settings on the ESC? Also what were you geared at? Those ESC heat levels have me concerned about running that motor, may need much more ESC. Or much more gearing?

Last edited by Rac3rX; 01-24-2012 at 07:32 AM.
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Old 01-24-2012, 08:14 AM
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Originally Posted by Rac3rX View Post
What was your settings on the ESC? Also what were you geared at? Those ESC heat levels have me concerned about running that motor, may need much more ESC. Or much more gearing?
I confess, I havent set up the esc yet and when i bought the neu, it was CC that recommended this MMP over the sidewinder. I will check all of it out tonight and provide full details. I will mention however, that the esc/motor combo had no issues in my vendetta and i had that thing in tall grass and everything - its probably the settings. I was just so excited to see it run that I couldnt wait

Last edited by 3deebee; 01-24-2012 at 08:26 AM.
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Old 01-24-2012, 09:20 AM
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Hey RacerX, thanks for starting the esc/motor mod thread. good stuff so far! Well, on my side of the bridge I have been running pretty much stock. the ESC cogging is starting to get to me though. I have looked into the HW 25A, 35A, sv2 and the Micro Pro. I see others that have used all of the above so I am looking for something different to help expand the knowledgebase a bit. I am currently looking at this dynamite 1/18 ESC at 35a continuous and relatively cheap.

http://www.dynamiterc.com/Products/D...ProdID=DYN3740

Any suggestions on what you would like to see tested as far as ESC within a reasonable price range are welcome. I am basically a dirt track basher so I run my M8 for long stretches, often with back to back 2s packs. Reliablity, runtime and heat will definitely be at the top of my test results. Sticking with the stock motor for now.
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Old 01-24-2012, 11:09 AM
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Great to see more jump on board. Id like to see how the Neu runs with the MMP settings adjusted.

Also the Dynamite 35a is right in the alley of whats being tested so far so its a good starting point for your testing.

I wonder how that Neu would appreciate a Momba Max Pro... Just still concerned about max rpm.
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Old 01-24-2012, 01:08 PM
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Originally Posted by Rac3rX View Post
Great to see more jump on board. Id like to see how the Neu runs with the MMP settings adjusted.

Also the Dynamite 35a is right in the alley of whats being tested so far so its a good starting point for your testing.

I wonder how that Neu would appreciate a Momba Max Pro... Just still concerned about max rpm.
From the Merv experience and review on Merv threads, Neu 1100 series motor with Mamba Max Pro is a lethal combination. My co-worker and I have it on the Merv and they work hand in hand! But maybe due to the 4 pole Neu motor, there is some cogging on initially startup but it's fine once you're on the move.

Yet again, I have nothing substantial to input if Neu and Mamba Micro Pro works good or not.
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Old 01-24-2012, 07:21 PM
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Found something interesting

LEOPARD Boat 2850 KV5280 4 Poles Brushless Motor LBP2850/2.5D

28mm wide and 54mm long, 4 pole car/boat motor running 5280kv

Specifications
-Max. Current: 82A
-Lipo Cell: 2 - 3s
-Max. Power: 1000W
-Rotational Speed: 5280KV
-Mounting Hole Depth: 5mm
-Shaft Diameter: 4mm
-Shaft Length: 12mm
-Dimensions (Diameter x Length): 28mm x 50mm
-Weight: 145g
-Suitable Model: RC Car / Boat

Features
-High Efficiency
-Handwound
-Neodym Magnets
-Long Service Life
-Low Electromagnetic Interference
-12 Slot Stator
-Precision Ball Bearings For Smooth Operation
-Minimal Motor Maintenance Required
-Low Current

Here is a link, what do you think??????

http://www.rc-fans88.com/goods.php?id=200
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Old 01-24-2012, 07:26 PM
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Originally Posted by 3deebee View Post
I couldnt have said it better my self - i love the science behind the hobby but I dont have time for the track - just a guy who is finally able to come back to the sport - first car was a Tamiya Hotshot II and then there was a 20 year hiatus followed by a vendetta and now this (plus a couple helis).

On to the motor -
I will provide a full write up with performance, temps, and impressions of the motor when i am home. For now, i'll provide the abbreviated version. I had the chance to run the neu 1105 1.5y with the CC MP ESC on a 2S flight power lipo last night and the Neu didnt get very far past luke warm - the esc on the other hand got to the point where after 2 seconds of touch, you finger would get stung.
I'll pick up a thermo and a fan for the esc probably tonite or tomorrow.
thats all for now.
Looking foward to that data especially the temps.

My micro pro got hot even just on the cm2668 so I switched to the SV2. I'm assuming the NEU pulls more than a cm26 but I could be wrong.
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Old 01-24-2012, 08:17 PM
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Originally Posted by Rac3rX View Post
Found something interesting

LEOPARD Boat 2850 KV5280 4 Poles Brushless Motor LBP2850/2.5D

Here is a link, what do you think??????
I did look up Leopard motors and had to walk away because of the 4mm shaft. Not sure if we can find Mod 0.5 pinions with 4mm bore. Not thrilled with the idea of drilling my pinions to 4mm bore either because I know I cannot do a good job and it will be off-center
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Old 01-25-2012, 01:50 AM
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I cant see the Dynamite being much better than the Losi. Its peak current is considerably lower than the stock aswell. I only noticed that skimming across the specs it momentary peak is 50A. Stock is 32A/ 200 somethin peak
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Old 01-25-2012, 05:04 AM
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Originally Posted by RCaddict0 View Post
I cant see the Dynamite being much better than the Losi. Its peak current is considerably lower than the stock aswell. I only noticed that skimming across the specs it momentary peak is 50A. Stock is 32A/ 200 somethin peak
I use the dynamite with the stock motor and it works great also i have the 7000kv motor to but havent put it in yet. I like the dynamite esc and its programmable but i also own castle escs in 1/10 scale and i like how you can get really into esc as far as with your computer and you cant seem to do it with the dynamite but the programming card gives you alot to work with but if you want to get really custom another esc would be better. For what i do with it it works great
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Old 01-25-2012, 11:17 AM
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Originally Posted by 1299pete View Post
I use the dynamite with the stock motor and it works great also i have the 7000kv motor to but havent put it in yet. I like the dynamite esc and its programmable but i also own castle escs in 1/10 scale and i like how you can get really into esc as far as with your computer and you cant seem to do it with the dynamite but the programming card gives you alot to work with but if you want to get really custom another esc would be better. For what i do with it it works great
Where does it lag in performance or features over stock? I do the difference in the numbers as far as momentary peak but what does that really mean in a real world application? Did it solve the cogging issues and does it have as much punch and top speed as the stock?
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