My e-revo brushless edition build

[sjcrss]

Cool MC, I'm adding these pics to the collection that I allready have of mine and yours....I also had a PM today about the CD as well.... for parts info...ect., it seems there is becoming a interest in this diff design, I have sent the info to Mike twice and have yet to hear anything from him...maybe at the bash, I could talk to him....

[mistercrash]

It would be cool to have someone market an 8th CD for the ERevo. But keeping the selling price under let's say $60 is quite the challenge IMHO.

One thing that I haven't discussed in this thread is weight. The total weight of the truck. Many of the parts used on the ERBE are from the nitro 3.3 version. So originally, those parts were designed for a truck that weighs 10 pounds or less. A RTR ERBE with beadlocks and a couple 4S lipos in parallel can weigh much more than 10 pounds which I think can put a lot of strain on many components that came from the 3.3. So how much does your ERBE or conversion weigh? It would be cool to see if there is a big difference between conversions and ERBEs, or if there are big differences between ERBEs and ERBEs or conversions and conversions. To seriously compare the weight of different trucks, I say to weight them without tires/wheels and without batteries because there are huge differences in weights of tires, wheels and batteries. So take off the batteries, the wheels, put back the nuts, body and body clips on and weigh the truck.

Here's the weight of my ERBE:

3352 grams or 7.39 pounds.

[mistercrash]

I got a couple LST2 diffs on ebay for cheap because I thought it would be nice to build a couple spares for my ERevo. So in the process of shaving a little off the thickness of the diff cases to have them fit in the ERevo's bulkheads, I ruined one set of cases by taking off too much. So now I have one complete spare diff built and one diff without a case. No big deal.
Looking At that case less diff I thought, I bet I could make a center diff out of it. So I did, but instead of going with threaded holes in the ring gear, I made three holes, counter sunk from the inside of the gear to secure threaded stand offs with flat head screws, the output gear will be screwed on the other end of the stand offs on the outside of the ring gear. I saw this idea somewhere but I can't find where exactly. I wish I could because I would mention the name of the person who came up with the idea of the stand offs. It was much easier to just make holes in the ring gear and not have to put M3 threads in them. Another thing I like about it is that it is actually smaller from end to end than the stock Traxxas center diff so it will be easy to position it perfectly with shims inside the tranny. And it is thin enough to use the output gear to it's full thickness, no need to sand it down on the belt sander to make it fit.

[mopar1994]

did you use revo output shafts? is the gear you are using from a e-revo center diff or the gear that the e-revo comes stock with?

[mistercrash]

I used the TRA5415 and TRA5416 shafts from the nitro Revo center diff. I cut them to the right length and put a hole for the pin. The gear is TRA3984X so yes it is the output gear that came with my ERevo Brushless Edition.