New Project, Revo Truggy style

[Lonewolf039]

Well, my old setup works good, but I wanted something simpler. This is about as simple as it gets, barring the outrunner direct to diff setup. I also wanted to try a center diff. I have a Kyosho spur, and a set of the truggy ratio hybrid diffs on order, as well as an 8xl with heatsink, and an assortment of pinions. Everything else is pretty much ready to go.


The Titan is only for mockup I might also move the position of the ESC, depending on how all the wires fit.

Everything sits really low, yet doesn't hang down too bad.

Even got the skid plate done.

Should balance out real good with a pair of trakpower batteries.

The center skid actually sits up higher than the servo guard.

During the mockup stage.



Using all hardened truggy diffs should pretty much bullet proof my revo driveline. Might have to do something about the center shafts, but will see how they hold up first.

[squeeforever]

You don't wanna run truggy diffs in the F/R...The ratio will be to high.

[Lonewolf039]

Originally Posted by squeeforever

You don't wanna run truggy diffs in the F/R...The ratio will be to high.

Differential Ratio: 4.3
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 15
Total Voltage: 14.4
Motor KV: 2084
Tire Diameter (inches): 5.8
Tire Ballooning (inches): .25
Motor Current Draw: 0
Motor coil Ω: 0.0073
Spur/Pinion Ratio: 3.07 : 1
Total Ratio: 13.18667 : 1
Tire Circumference (inches): 19.79 inches (502.72mm)
Total Motor Speed: 30009.6 RPM
Vehicle Speed: 42.65 MPH (68.52km/h)
Effective Speed Rate: 2.96mph/V (4.76kmh/V)
Effective KV Value: 2084
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...


Don't need to go much faster than that. I have 13-16 tooth pinions on order.

[jhautz]

I run a similar setup with a center dif in a G2R chassis and the truggy ratio f/r diffs are the way to go IMO. It lets you run a standard 46T center dif and still be able to gear it reasonably. The buggy difs with the 46T center and truck tires forces you to go down to tiny little pinions which increase wear on the pinion and spur IMO and have a tendancy to break the platic teeeth on the spur also when the pinion is that small.

You got the right plan going and I love the truck. Looks sweet and a very slick setup. Cant wait to hear how it goes for you. I love mine.

BTW heres a couple pics of mine in case you are interested. These pictures are a little old, I'm running a different motor and speed controll setup now, but it is still the same concept and basic layout.

[Serum]

I have got one of those sexy motormounts on my revo too!

[jhautz]

Yea... There is this nice Swiss guy who made a few a while back. I think there are a couple more folks around here that have these as well.

Only downside to the true center diff on the revo is in most cases they force you to run with the truggies. The Monster trucks class usually requires a transmision of some sort. At the RCM Bash last year I had to run the Revo in the Truggy class. I was pretty happy to get third place with it racing agaianst the true truggies.

Originally Posted by jhautz

Yea... There is this nice Swiss guy who made a few a while back. I think there are a couple more folks around here that have these as well.......

I don't mean to hijack the thread, but is the nice Swiss guy still making these? I wouldn't mind getting one for my G2r

[wallot]

Originally Posted by jhautz

Only downside to the true center diff on the revo is in most cases they force you to run with the truggies. The Monster trucks class usually requires a transmision of some sort.

thats i have center diff hidden inside tranny. none would expect diff in maxx trany :)

[jhautz]

Originally Posted by CCristo

I don't mean to hijack the thread, but is the nice Swiss guy still making these? I wouldn't mind getting one for my G2r

Dafni made them a while back. Don't know if he still has any but you could ask.

[Dafni]

Originally Posted by CCristo

I don't mean to hijack the thread, but is the nice Swiss guy still making these? I wouldn't mind getting one for my G2r

Ask Mike for such a direct drive motormount, he'll hook you up.

I'll tell that swiss guy you boys here still remember him

[BrianG]

[Serum]

Nothing but love for the Dude..

Lonewolf, what will you use as rear center drive shaft?????? It will have to be verrrrrrry long?????

And who have make your center diff mount????????????, i want this setup on my revo

[Lonewolf039]

Originally Posted by david lamontagn

Lonewolf, what will you use as rear center drive shaft?????? It will have to be verrrrrrry long?????

And who have make your center diff mount????????????, i want this setup on my revo

If you look close, you can see a stock length axle shaft for the rear. It fits perfect.


I might get a dogbone made up, but like you said, it will be really long. I'm hoping the plastic shafts will hold up. I made the mount myself, the hardest part was making the motor mount screw slots. I drilled five 1/8 inch holes and then broke a couple of dremel bits grinding them out into a slot. The mount is made from 1/4 inch plate, cut out with a hacksaw and sanded to shape on a belt sander. It might not be pretty, but it should be strong.


jhautz, I love your truck. I have studied the pictures and based a lot of my truck off of yours. I just love the simplicity of the setup. I just don't want to spend that much money on the gorillamaxx chassis, as I don't race, just bash.

Woww!!!! I've an old RCM Mugen motor mount siting here, colecting dust, so i could use it for the rear mount, just make home made side plate to hold it firmly.
he only part that i will have to make will be the front diff mount
The only thing that i would like to see on your setup would be a mechanical brake system, to avoid to use the speed control to brake.

Could you tell me which center diff you use?? Mugen, ofna, Hot bodies, Kyosho???? And on your pics, i suppose that the ring gear is there just to the picture need!!! I suppose that you'll use a Kyosho plastic one?