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  1. #1
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    T-Maxx 2.5 to Electric ~ CONVERSION :)

    So I really would like to contribute to the forum by making a thread about turning my Tmaxx 2.5 into a electric truck.

    I know that it has been done, I did search and found some results but not so positive. I'm starting to turn off from nitro because of the cost of fuel, and being a teenager, money is tight.

    I bought this truck about a month ago for a trade, I traded him my Rustler VXL for his T-maxx 2.5. It was real pain in the butt to get it started, once it started it's idle was off and I kept on tinkering and tinkering. It was fun to drive it around. But as time went on, I was looking into another Summit or a E-Maxx (or some other non-Traxxas RCs). I thought, why don't I convert my Tmaxx into a electric?

    So as I have it right now, it's stock.

    The engine, fuel tank and the switching servo removed.

    Now, the RX and battery case is removed


    Right now, I have a few questions for the fellow bashers -

    1. How can I set up the tranny to hold up to electric power?
    2. The switching, 1st to 2nd - how does that work with electric?
    3. What is a good motor for this? I would only like 1 motor, not dual.


    I'm thinking of buying:
    a cheap 2.4ghz radio system
    a ESC + Motor ( I want torque! )


    The final question -
    Is this worth the money?

    I have time on my hands - after school (a few hours) and some time when I'm not working during the summer.

    So any input would be appreciated. If I continue with this, I will create a new thread with more pictures and details.

    Thanks!! TB.
    Rustler VXL | Slash | Stampede 4x4

  2. #2
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    It is worth the money and I'm sure you have ti lock the tranny in second gear. If you look in the revo section there are many threads about conversion there. Enjoy
    Oh and are you going brushless or brushed?
    T-MAXX 3.3
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  3. #3
    RC Turnbuckle Jr. morganko's Avatar
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    good luck!! Cant wait to see when your done!
    "fat drunk and stupid is no way to go thru life"

  4. #4
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    I want to start off with brushed, a cheap brushed system to know it works

    I have some titan 12T and XL5s laying around, but I want it to actually GO.
    Rustler VXL | Slash | Stampede 4x4

  5. #5
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    DO a mamba monster with the mamba ESC.

    I am gonna do this with my 3906, I just have to upgrade the drivetrain so it can handle the power...

  6. #6
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    Quote Originally Posted by Kfarron1 View Post
    DO a mamba monster with the mamba ESC.

    I am gonna do this with my 3906, I just have to upgrade the drivetrain so it can handle the power...
    +1 on that set up. Your maxx will fly then
    T-MAXX 3.3
    SLAYER PRO 4X4 SOMEDAY.....

  7. #7
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    I know, put a MMM In anything and it will fly.

    It looks really easy to me actually, I can sell a lot of parts to help pay for the ESC + motor.
    Rustler VXL | Slash | Stampede 4x4

  8. #8
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    I should actually just put dual motors in, I'm thinking of getting 2 EZ Run BL motors.

    A good ESC choice for brushless, don't forget, 2 connectors.
    Last edited by traxxasbrothers; 05-06-2011 at 06:13 PM.
    Rustler VXL | Slash | Stampede 4x4

  9. #9
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    If your are looking for a cheap brushed motor might want to go for a 14.4v dewalt. They are about $40, very torquey, and rebuiledable. If want alot of speed, go brushless; if you want waterproof and cheaper go brushed. If you do go brushless go with one large brushless motor, not two smaller ones. Two smaller ones will be much more complicated, especialy if you are not experienced with electric. One large brushless motor will also be faster and lighter and possibly cheaper.

  10. #10
    RC Turnbuckle Jr. Snook Man's Avatar
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    The Tmaxx tranny switches from 1st to 2nd automatically with internal gears and a clutch system.

    To have reverse you will need to use the stock forward reverse gears with a shifting servo or, make it a single speed and use the motor/esc for reverse.
    To have electric brakes you will need to make it a single speed.
    To have mechanical brakes you will have to use the stock throttle/brake servo.

    You would be much better off installing an Emaxx tranny than the stock Tmaxx tranny.
    No slipper/tall gearing/power = broken parts.

  11. #11
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    I rather have single gear, the 1st to 2nd would just cause problems.

    I do have a lot of experience with electrics. What do you think would have more power? Dual 550 brushless, or a Single MMM Neu?

    How much would a Tmaxx tranny cost?

    How can I mount the motor and batteries - should I just use battery straps?
    for the ESC - 2 sided tape?
    motor, what can i use?

    Edit - Ebay search, does this look good?
    http://cgi.ebay.ca/Traxxas-E-Maxx-Br...#ht_5962wt_905

    I'm thinking of dual these - http://www.hobbypartz.com/96m801-4074-2000kv.html
    Last edited by traxxasbrothers; 05-07-2011 at 08:47 AM.
    Rustler VXL | Slash | Stampede 4x4

  12. #12
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    So all I need is a ESC that will support dual motors and is brushless.

    The dual Tacons are 2000kv, which will produce a LOT of power and torque.
    $60 x 2 = $120 - so not bad price for two brushless motors.

    I know that there isn't really a single brushless ESC that supports dual motors. I'm pretty sure there must be a mod to do it, but if I HAVE to... I can buy 2 ESCs, but they need to be cheap as possible.

    I'm thinking the sidewinder esc, it seems to be pretty cheap and reliable.
    $70 x 2 = $140
    $140 + $120 = $260.00

    $260 for the ESC + motor
    and then add on a RX/TX ( http://www.amainhobbies.com/product_...-Surface-Radio )

    $260 + $120 = $380.00
    $380 + $20 = $400.00 (Emaxx tranny)

    So It ends up become really pricey.
    Last edited by traxxasbrothers; 05-07-2011 at 09:58 AM.
    Rustler VXL | Slash | Stampede 4x4

  13. #13
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    On the topic of dual or single motor, the only reason would be if you went with dual vxl's for waterproof. I don't know of any 550 brushless motors, only 540's, and a mmm/2200 would be more powerful than dual 540's. Take a look in the e-maxx forum, almost everbody is using running one brushless motors. If the mmm/2200 is not enough power (which it probably is) then go with a bigger single motor. Also I don't know of any dual brushless esc's, the only dual setup's I have ever seen use two esc's. An about that motor, it doesn't say the length which is important in knowing how powerful it is. Some of these questions are reaching the limits of my knowledge, might want to try posting in the e-maxx forum.

  14. #14
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    But I wanted to make it more fun... like make the truck different then other's MMM setups.

    But if I have to, I will take the easy way out and buy a MMM.
    Rustler VXL | Slash | Stampede 4x4

  15. #15
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    now I removed the throttle/reverse servo and the Tranny!!
    Sorry for the crappy quality, I tried to take it with my webcam :P
    Rustler VXL | Slash | Stampede 4x4

  16. #16
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    I decided that I will take the EASIEST way out, it will cost me a lot. Found out to buy a Emaxx roller would be a lot easier. So parts are up for sale in the marketplace.
    Rustler VXL | Slash | Stampede 4x4

  17. #17
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    Should have locked the tranny, about 25$. And got a castle MMP sct 2400kv system. 175 shipped. (ebay)

    Run it on 4s! Thats the same system they put in the heavy flux. (not flux HP, thats a MMM)

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