Another Brushless REVO conversion - Page 4 - RC-Monster Forums

Shark413 · 04.19.2007, 02:50 AM

Ok Ok, here are some pictures I dug up.

Evo sitting on my tool box.

No that's my 1/8 buggy, but the Evo was in the pit area

See the Evo in the back behind my truggy?

04.19.2007, 11:59 AM

SWEET!

i like that paint job! and looks like a buggy that aint bl.......lol

Shark413 · **Updates -** 04.27.2007, 02:55 AM

Since I originally put this Brushless Revo together I have made some significant updates. I have added Tekno extended a-arms to strech out the wheelbase, added RPM carriers, Center diff, rear brake, brake linkage, updated the engine from a Novak 6.5 to a 4.5 and I moved the ESC to the rear. I have the 1/8 diffs and Will add them as soon as I have time.

Top view, showing rear brake linkage.

Bottom view, motor mount utilizes the stock nitro engine mount.

1/8 diffs

Trick440 · 04.27.2007, 03:21 PM

Looks good man. .. Is that the traxxas 2055 servo for the break? What else is hooked to it .. the red servo arm linkage.. whats that doing?

GriffinRU · 04.27.2007, 03:29 PM

Quote:

Originally Posted by Trick440

Looks good man. .. Is that the traxxas 2055 servo for the break? What else is hooked to it .. the red servo arm linkage.. whats that doing?

rear brake link

Shark413 · 04.27.2007, 04:39 PM

Trick440, good eye. Yeah that is a stock Traxxas 2055, borderline I know. But for braking duties it is ok. I have $600+ dollars worth of servos in my road cars, nitro Revo, truggy and buggy, plus a few spares so this is all I could afford right now. At least I have a Hitech HS-965MG on the steering, which is again borderline but adequate for now. And as GriffinRU pointed out the red servo arm works the rear brake. Since I am running a center diff you need a front and rear brake.

BrianG · 04.27.2007, 05:56 PM

Brakes on the CD work just like they do when using the motor to run the CD. Since you are braking on the CD, the end with the least amount of traction will have more of the braking force - which is usually the rear end because of brake dive. This tends to make steering quite sharp.

jnev · 04.27.2007, 08:37 PM

Very nice work!!

Shark413 · 04.28.2007, 12:53 AM

jollyjumper, since I am using the Revo Nitro tranny, reversing the motor won't brake the car, it will just freewheel. So the disc brakes are necessary to stop the car. You need front and rear brakes because the center diff basically splits the drive train in two (front and back). I have the ESC set to only have forward speed and brake, no reverse. But the ESC brake action works the brake servo via a splitter (when the ESC sends a brake command the motor stops, but the tranny free wheels, but the signal is also sent to the brake servo, via the splitter, which works the likage connected to the front/rear disc brakes. It has very strong, consistant braking action that can easily be finetuned. I much prefer this setup (disc brakes) to the ESC/motor braking action in a normal electric car.

BrianG · 04.28.2007, 02:57 AM

Using mechanical brakes is better for the ESC too. However, I'm lazy and don't want to find extra room for the servo. :)

04.28.2007, 03:12 AM

Man, all of these revo threads are really making me want to do one myself.

BrianG · 04.28.2007, 03:24 AM

What's that? I think I hear a Revo faintly saying "AAngel, convert meeeee". :)

04.28.2007, 03:27 AM

Man, I think I hear something buzzing in my ear.

Serum · 04.28.2007, 03:29 AM

Thought my mind that was playing tricks on me..

convert me.. convert me.. listen to that poor thing!.. It's allmost begging!

I am going to work on mine today.. Thinking about getting those GRP wheels for her.

04.28.2007, 03:45 AM

I've been checking out that guy on ebay selling brand new rolling chassises for less than $300. On the other hand, I have a friend that got out of RC and he has a practically new Revo 3.3 with the center diff and I could get that for under $200.

Ohh, you guys are killing me. Actually, it'll be my wife that's killing me if she walks into my shop and sees another RC vehicle.