T-maxx Brushless conversion

Welcome to RCTalk

Come join other RC enthusiasts! You'll be able to discuss, share and private message with other members of our community.

croccodillo

RC Newbie
Messages
4
Location
Bergamo, Italy
RC Driving Style
Bashing
Hello all,

I know this has been asked too much times, but I have to.
I have this old T-Maxx 3.3 (49077-1 model), which has been sitting on a shelf for too long.
I removed the engine (sold), the fuel tank, and everything related to the nitro compartment.
I left the original 2-speed transmission and mechanical brakes, which I want to reuse.
I developed a small electronic board, with a microcontroller, with split the throttle signal into two different signal:
- A forward only signal to the Esc, when you pull the trigger
- A brake only signal, when you push the trigger

Now, I'm also a good mechanical fabricator, with access to a CNC mill, a lathe and a 3D printer, so building parts is not an issue.

My doubt is which Brushless motor/esc combo shoud I use for this beast.
I'm a brushed guy, I used tons of brushed system, even developed and built two different brushed ESCs in the past (still when EVX-2 was not on the market, and I needed amn ESC able to handle 12 cell NiMh packs).

I'd like to find a really, really cheap combo, a chinese one (I'm really short on money, in this period; my wife has decided to revolutionize home furnishings, and I cannot show her too big RC expenses.

There are (too) many on the market, I have no idea on which to choose.

Any suggestion?
Something I can find on Aliexpress or Banggood?

Or, at least, can you help me with some characteristics (KV, size, etc.) I should search for the motor and ESC?

Thank you in advance.

Ciao
Giovanni
 

WoodiE

Kind of good admin
Administrator
Messages
14,858
Location
Lexington, KY
RC Driving Style
Bashing
@croccodillo I would recommend checking out the offerings from Hobbywing. They have great brushless motors for a very reasonable price.
 

croccodillo

RC Newbie
Messages
4
Location
Bergamo, Italy
RC Driving Style
Bashing
Thank you for your reply, I will look at them.
In the meantime, what about Surpass Hobby 4076 motor?
They should be Racestar/GooIrc clones, and can be found for cheap on AliExpress.
Maybe combined with same brand 120A esc.
Anyone used them?
 

D3MON

Hardcore RCNT User
Messages
1,699
Location
Missoula MT
RC Driving Style
Bashing
Thank you for your reply, I will look at them.
In the meantime, what about Surpass Hobby 4076 motor?
They should be Racestar/GooIrc clones, and can be found for cheap on AliExpress.
Maybe combined with same brand 120A esc.
Anyone used them?
ESC's are one thing i wouldnt skim out on, Goolrc are kind of cheaper knock-offs/clones to my understanding, and a clone of that would have me skeptical, motors i hear people have luck with Goolrc etc, but i haven't seen to many that still run their escs.
i recommend hobbywing ESC's and get a cheaper motor for now. might be able to go to something like Jenny's RC (they tear down new kits for parts to sell separately) and may be able to find a arrma esc. (Arrma rebadges HW)
something like this maybe? https://jennysrc.com/products/arrma...n-typhon-ar106021?_pos=2&_sid=0c01c71a2&_ss=r
handles 6s even. are you planning on 3s, 4s, or 6s?
 

croccodillo

RC Newbie
Messages
4
Location
Bergamo, Italy
RC Driving Style
Bashing
Thank you for your answer.
First of all, I'm not sure which voltage I will run: I have several packs, 2s and 3s, so I could combine them as I prefer, from 2s to 6s.
I'm not a speed guy, instead I would prefer a torque motor, so I can use the truck wherever I like.
I would say I will run 3s (single Pack) or 4s (2 2s packs in series).
So, I think I will buy a Surpass Hobby motor, and will follow your advice and search for a better ESC.
What KV should I prefer for 3s and 4s operation?
2000, 2250, 2650 RPM/V?
 

D3MON

Hardcore RCNT User
Messages
1,699
Location
Missoula MT
RC Driving Style
Bashing
Thank you for your answer.
First of all, I'm not sure which voltage I will run: I have several packs, 2s and 3s, so I could combine them as I prefer, from 2s to 6s.
I'm not a speed guy, instead I would prefer a torque motor, so I can use the truck wherever I like.
I would say I will run 3s (single Pack) or 4s (2 2s packs in series).
So, I think I will buy a Surpass Hobby motor, and will follow your advice and search for a better ESC.
What KV should I prefer for 3s and 4s operation?
2000, 2250, 2650 RPM/V?
as far as the motor goes, mainly depends on gearing, i would look at what others have done with their T-Maxx BL conversions and go from there. personally i like lower KV because they have a bit more torque and its easier to gear up if you want more speed. to me it seems lower kv is more stable. just make sure the ESC ratings on whichever you chose are capable of the KV /cell ratings you want.
 

Create an account or login to comment

You must be a member in order to leave a comment

Create account

Create an account on our community. It's easy!

Log in

Already have an account? Log in here.

Thread starter Similar threads Forum Replies Date
C T-Maxx Conversion to Brushless Traxxas T-Maxx 1
S Converting my T-Maxx to brushless Traxxas T-Maxx 21
SachaFenestraz Traxxas e-maxx brushless edition Electric RC 4
Rangerrico32 E maxx brushless spur gear Electric RC 2
B brushless e maxx setup Electric RC 16
D T-Maxx 2.5 for a 1/16 brushless revo? Traxxas T-Maxx 5
exmark93 E- maxx brushless!! Electric RC 6
WoodiE Traxxas E-Maxx Brushless Edition Traxxas T-Maxx 5
R New E-Maxx Brushless Edition Electric RC 0
N e maxx brushless Traxxas T-Maxx 11
Metalhead Matt New E Maxx brushless recomendations Traxxas T-Maxx 4
E E-maxx brushless Electric RC 4
H brushless e maxx runtime Electric RC 3
robmob T + E-Maxx / Gorillamaxx Brushless Project RC Builds and Projects 47
B hv maxx brushless crazy fast or tranny suicide Electric RC 0
B hv maxx brushless crazy fast or tranny suicide Traxxas T-Maxx 8
Shockbender98 More t maxx issues Nitro RC 4
Shockbender98 T maxx fuel issue Nitro RC 6
P T maxx identification help Nitro RC 2
S T Maxx 2.5 engine issues Nitro RC 19
NurturantQuasar T-Maxx electric conversion questions Electric RC 3
Tivum T-Maxx Classic Cage Traxxas T-Maxx 6
Tivum T-Maxx Classic 1.5 Parts Nitro RC 1
C Brand new T Maxx 3.3 Transmission issue Nitro RC 4
Mbjones16 T Maxx pico .21 Nitro RC 16
H X Maxx vs. Savage Xl... Monster Trucks 19
W T maxx 3.3 full throttle after 30 seconds idle Nitro RC 5
Scalise Reviving my old 2.5 Maxx, electronic upgrade recommendations? Traxxas T-Maxx 4
M Teaching my son how to Bash a Traxxas Maxx Monster Trucks 6
C Maxx 4s tires Electric RC 10
Peeeenuuutt Traxxas MAXX- a boat powered 10th scale MT! Monster Trucks 5
johnnydmd Weird-O Maxx RC Builds and Projects 20
D Breaking Spur and pinion gears on Traxxas X-Maxx Traxxas X-Maxx 4
Crogers T-Maxx shocks keep coming apart Chassis & Drivetrain 8
meister1993 picco 26 maxx Nitro RC 3
G Traxxas X-Maxx : - Unleash the Beast Traxxas X-Maxx 25
rcjamjam X-Maxx lover ? This is for you ! Monster Trucks 3
RyanKeith78 T-maxx big block build Nitro RC 0
HEADSOFTNER X-Maxx needs a stronger kushdrive Traxxas X-Maxx 1
RyanKeith78 Traxxas T-Maxx big block build. Nitro RC 8
RyanKeith78 T-Maxx big block build Traxxas T-Maxx 15
_Kodiak_ T-Maxx 3.3 Desert Runner Build Nitro RC 1
T New to me - Traxxas E-Maxx 3906 Monster Trucks 6
T Halting x-maxx repairs Traxxas X-Maxx 4
Tmandman New 1/10th scale body doesn't fit Traxxas T-Maxx Nitro RC 3
N T-Maxx LRP .32 Spec 4 Build Monster Trucks 1
N T-Maxx 2.5 transmission question Chassis & Drivetrain 4
A Traxxas X-maxx opinion Electric RC 6
WoodiE Recommended Traxxas X-Maxx Upgrades Traxxas X-Maxx 0
WoodiE Pro-Line X-Maxx Trencher 4.3” tires Traxxas X-Maxx 5
Similar threads


















































Top