4x4 rustler
 

I decided to make my rustler 4x4 instead of running a 60mm medusa with the tranny flipped. This is the set up I have come up with so far. It's a little longer than I would have liked but I dont really see anywhere I could remove length, while maintaining the simple steering set-up. Im still working on some modified c-hubs that Im hoping I can get to work, but we will see.

I would like to run dual sidewinders with dual velineon motors. I just like the added torque over the mamba motors, and I might beable to get a velineon through warranty becuase my original one has a cracked rotor. please tell me if you have some set-up motor/esc wise that you think would be better, and wouldnt break the bank. IDK if I can afford medusa right now, but I could probably go for some feiagos.

im pressuming about 1/9th scale and about 9lbs. I would like it to be lighter but the smallest lipos i have are 6400mah, and I have to run two of them becasue I dont think one can deal out enough for both motors.

<a href="http://s238.photobucket.com/albums/ff43/dirt1010/?action=view&current=thetrack003.jpg" target="_blank"><img src="http://i238.photobucket.com/albums/ff43/dirt1010/thetrack003.jpg" border="0" alt="Photobucket"></a>

<a href="http://s238.photobucket.com/albums/ff43/dirt1010/?action=view&current=thetrack001.jpg" target="_blank"><img src="http://i238.photobucket.com/albums/ff43/dirt1010/thetrack001.jpg" border="0" alt="Photobucket"></a>

1 lipo would be enough, trust me. Nice project!!

I might give it a try because that would cut my weight by 18oz. thats alot of weight to drop, and It would also simplify my wiring a TON. when running dual esc you have to run this crazy wiring connector:

<a href="http://s238.photobucket.com/albums/ff43/dirt1010/?action=view&current=parallelharness.jpg" target="_blank"><img src="http://i238.photobucket.com/albums/ff43/dirt1010/parallelharness.jpg" border="0" alt="adaptor"></a>

You might want to run the 2 batteries. I think you might have a huge voltage drop issue with 2 systems trying to pull from the same battery. Besides, I have never seen weight as an issue with BL power. It might just help you keep that thing glued to the ground!!!!

I dont think its going to be a lightweight at all. The sidewinder ESC are very light though and thats another reason I would like to run them over the velineons.

My batteries are rated at 96amps constant, and I believe that holds pretty true. In my CRT on 5s with a 2.5d they get about 15 degrees about ambient(more when its real cold).

defiance engineering? makes a c-hub to use rustler steering blocks with rear arms. $70 but they really simplify the build. I add a link if you're intersted.

linky: http://www.rcmt.biz/bd/showthread.php?t=3523

yeah I sent him an email this morning and he said he makes them in very limited quantities. The price is also pretty steep but I may not have a choice. its going to be a last resort kind of thing.

swami rc has a low buck build, also google 4x4 pede and there are a couple builds

I will post a pic later of what I have going right now. my set-up also uses rear bearing carriers.

running the front tranny facing in will make steering linkages difficult, but I sure like the way it looks. I'm gonna keep my eye on this one.

edit: maybe a servo out front and linkages out front like a crawler setup?.....

I did a 4x4 'Pede about 4 years ago, and made a how-to sort of thing:
http://www.4x4pede.freehomepage.com
It might help with some ideas for suspension and/or steering.

thanks metal man! I will build one eventually

here is a link with alot more pics of my 4wd rustler build i did awile back

http://www.ultimaterc.com/forums/showthread.php?t=88478

http://img.photobucket.com/albums/v2...s/DSCN0919.jpg

http://img.photobucket.com/albums/v2...s/DSCN0914.jpg

yeah thats actually the truck that made me want to build a 4x4 instead. I pretty much want mine to be like yours but with a single servo, and different esc's.

you said you were going to post the weight, but I never could find it. So how much did yours weigh? and how did it perform on one lipo? what lipo is it? also what steering setup are you running? the defiance racing hubs are nice, but $80 is really steep.

Nice truck Semi Pro.

thanks BL_RV0:yipi:

you know i dint rember the weight, it was useing one max amps 8000mah 11.1v pack, it ran great off of the one pack, the pack stayed below 100*.

as for steering, i just used 2 traxxas 2070 servos and i ended up useing a hoop to conect the two sides of the steering together, it didnt look very nice so i removed it for the pictures, that was the only way to get proper bump steering.

i tryed to build it useing only traxxas parts, that why i used vxl stuff

some things that needed to be done diffrently

1 the chassis need about 5-7* of front kick up
2 i tryed to make the exact same size as a stock rustler, thats just to small to get a proper stearing set up in the truck, try running your servo infront of the front gear box, it will be much easyer and you will only need one servo
3 the extreme shock angle requires much heavyer springs and better shocks
4 if you use hpi rs4 front hubs you will need longer cvds than mip's if you off road it.
5 im not sure if my chassis was thick enuff, sometimes flex is a good thing but two much or to little and it gets twichy. mine was 2.3mm with L chanel reinforcement in the center and on the sides to velcro the body to.


the truck was ballastic, but it was too twichy to get past 60mph

I should beable to get this thing started soon, because Im supposed to be selling my dirtbike on sunday.

right now im either thinking sidewinder 4600 combo's or sidewinder with a couple of feiago 10s's. what would you guys prefer(cost exactly the same).

I think im going to take semi pro's advice and run my servo up front(2070). It really simplifies things but im probably going to have some serious bump steer. the mount seems pretty simple to make too, and it allows me to shorten my wheelbase allittle if I decide I want to do that.

Im also probably going to cuagh up the cash for some of those defiance racing hubs. I dont want to but I'm not really fond of cvd's and after the cost of the HPI set-up and cvds they end up costing about the same.

also weight is going to be well below what I first presumed(9lbs). I weighed the two tranny's, my moabs, both 3s 6400's, reciever, servo(w/linkage) all on top of my CRT's chassis and I came up with 6.2lbs. If castle weights are correct two sidewinder combos will weigh 19 ounces, so im looking at a truck that will end up a little less than 7.75 pounds. If I can get away with running one battery I can drop that by 18 ounces, so it could weigh in around 6.5 pounds.

Down the road I would like to buy a 30c neu 5000 so I can really make sure I can run one battery. My 6400's have a ton of runs and are VERY TIRED, so Im probably going to just run both until I can upgrade.