I was thinkin about this for a while and I was wondering if anybody has any success installing a brushless motor on an Xmod. I'm thinking about making a super high performance drag car. I'm new to brushless motors though.
Cowboy, I know you have experience with brushless motors. Can you give me a hand?
Alright my first question is:
1. Does the EP on our Xmods, with FET's, power boards, etc. handle the power a brushless motor would put out?
2. How would you set up the wiring?
3. Does a standard Xmod size pinion fit on the shaft?
4. Would you have to swap, almost everything(dog bone's, etc.) with aluminum because of intense RPM?
5. How much voltage does a high powered brushless motor usually need, and yes, lithiums
Don't worry I plan on completely abondoning the Xmod stock chassis and making a custom carbon fiber chassis.
Any other standard safety tips (for my car not me!) and motor terms (I'm new to brushless).
Also with the higher speeds, I'll need a new controller, unless the R20 mod will give you extreme range, better braking, and steering controls ideas?
Thanks,
RedSXmodder 8)
holy crap cowboy!?!?! where did that comefrom? that is sweet! you should post it in general or somthing, b/c nobodys really gonna see it in motor upgrades. but damn, thats a sweet car!
servo is a 1/18th scale AE servo from an rc18t
Rx is from my Spectrum system...big but range is out of this world.
The body is a 1/25 model body...that is about as tight as you can go with the electronics as far as my abilities go. :wink:
Wow, nice Cowboy! What servo, and receiver are you using? That looks great. Where did you get the body? Oh does the wheelbase match the stock Xmods wheel base. On mine I'm trying to keep it as close to the stock wheelbase as possible.
Thanks,
RedSXmodder 8)
There you go...took four days to sit down, work out a custom chassis and finish a brushless xmod.
Full gen 1 GPM



Custom graphite chassis with electronics deck.
mamba 6800kv/20 tooth pinion
7.4 volt/700mAh/15C li-po
micro servo on graphite pillar
not sure if this has been mentioned but an hs-55 servo should fit made by hitec and get the new spektrum remote/receiver. make sure its the smalles reveiver
How do I hook up the receiver? And on the receiver what are the pins for?Noob questions :oops: ? I got the motor, ESC, Lipo's and charger. ($130)
I still need a servo, AWD, aluminum, and a reciever($180). Oh, and yes, luck.
I am working on a design for a chassis right now. Once I get a perfect design, I will post pics of it and you guys can tell me what you think.
otherwise,
Thanks
RedSXmodder 8)
cowboy you make this sound hard, and thank ess youare using the good xmod style.
now then I suggest you get a tinyrc pro mod pan chassis and mount an hs-55 on there, then cut a slot in one side for you motor to sit in and get a really large 3mm gear to put on the driveshaft.

you can them mount your reciever and esc either in front of the motor or behind/on top of the lipos.
So if you're talking gen 1, you've got a bit of hard work ahead of you.
1. Scrap every bit of xmod electronics.
2. Figure out how to mount all the chassis parts and the AWD kit( you will need AWD)
3. Find a small servo to mount in the tie rod section...probably mounted just above the front bearing for the driveshaft
4. Create a mounting are for the mamba esc and try to organize wirng to the motor neatly.
5. Get yourself a super small receiver(GWS makes a 75mHz FM Rx that is about the size of a quarter)
6. Figure out how to mount the mamba motor securely(probably the toughest aspect of this build)
7. Wire up a 2(or 3) cell li-po pack with a healthy discharge rating...more punch for your buck.
8. Get a FM 75mHz TX to go with this creation...you'll need the added range of a hobby grade TX.
...and after you've spent about $300usd or so on everything (excluding the xmod stuff) you'll realize you've created an uncontrollable plastic rocket and you'll want to buy a roller kit for a 1/18th truck or sedan and mount all your stuff in that. :wink:
First generation, guys. I don't think there would be eenough room in the EVO. So when I buy the speed controler, would that eliminate the Xmods EP? And if not where would it hook up to? From what I am hearing, the speed conrtrol is hooked up to the batteries, motor, and servo.
This is looking quite bright for me! I found the Mamba 25, and motor on www.allerc.com.
Thanks for the servo help color0 :wink: !
Judging on the size of the servo motor, a Blue Bird BMS-303 should be able to fit in the space left by the original servo. It's not the industry-standard best, but its specs are good for the money. If a BMS-306 fits, that's a better choice. A Cirrus CS-4.4 like I had would've also worked, but they're discontinued.
I'm not too sure of the free space left by the board, but any servo that can fit inside the "U"shaped indentation should work fine, you'll just need strong mounting/servo tape to mount the servo on. Then the horn you fabricate yourself.
That's my two cents; also, a Feigao motor would be better for the "usable power" factor (although you're probably not aiming for usable power, lol...).
wait one secound are you actually going to try andput a bl motor in an evo. cause if so I will have to do a little giggling, wish you luck and officially stop talking to you. Not to be mean but I just don't think you will be able to pull that off, I have nothing against you just against radioshack and evos.
ashrimp, the monte carlo was BlazinJason.
RedSX, your servo can work but it requires an adaptor chip to allow it to work. I can't remember who made them in the past but the best tip i can give you is to ask color0 which hobby grade servo can fit in the xmod evo internals. I recall him saying he found one that could fit...if you're going to try this mod and blow huge amounts of cash for a brushless xmod, you might as well go and get a better servo to get smooth steering action. :wink:
courtessy of cowboy
http://www.b-p-p.com/categories.php
This is a really good site, look into the 1/18 packages.
I found the mamba25 at www.allerc.com. All I have to do is buy that, some Li-polys and hook it up with the servo, batteries, and motor and it will run? Will my stock servo work?
Thanks
RedSXmodder
Not the second.. more like sixth.. there has been a few... the only I know of is viper and whoever had that monte carlo...
Thanks guys, It's good to know that if I pull his off, I'll be second to viperdout :wink: . I am gonna give it a try though, make my mark in XMod history :wink: . It'll be a while before I save up enough money though!!!
Thanks guys for all the help, and i'll try to make this a project and keep you updated :) .
Later,
RedSXmodder 8)
I don't think I can add much more to this RedSX...it seems I got beaten to the punch in the responses. :lol:
I can add only one thing...it may be a fun mod and all but I really don't think an xmod is worth the effort. Save it for a bigger scale car/truck that will be able to use the versatility of the insane amounts of speed. :wink:
1. You will need a good brushless esc as mention, mamba 25 or quark would be best
2.just hool the your new receiver to the esc and servo then attach the motor to the esc using provided clips and last hook up the lipos to the esc.
3. If you use a mamba or other motor with 2mm shaft then yes.
4. Yes, you will need and all alloy car plus cf chassis and cf driveshaft.
5. a 7.4v or 11.1v Lipo pack, not Li=ion theywill never keep up, and nimh are just too heavy for xmods.
okay this is gonna cost you at least $500 if you do it right. That includees ht emotor, esc, hs-55servo, new reciever and controller, all alloy, cf chassis and shaft, and lipos, plus some odds and ends you are gonna need.
In order to run BL you need a new ESC (a brushless speed control). I think I've seen that run off a hybrid stock receiver, but not sure. Viperdout has a BL xmod, so he'd know more about it. Basically you'll be rebuilding the whole car and elecs. Aside from that, it just pointless. You'll never be able to use that much speed/power.
If you decide to try it, best of luck.