1/16 Mini E-Revo - Top Speed Build

[kazuaki]

Due to the extended chassis and the location of the standoffs, my battery "compartments" are 142mm long and 44mm wide. The height of the compartments is determined by the length of the standoffs used to seperate the chassis plates, in this case 20mm. I chose these batteries, Zippy Rhino 3S 2550mah 40C/50C.




I made covers that bolt onto the chassis to hold the batteries in place securely and provide a bunch of surface area to mount electronics to. They are made from thin aluminum sheetmetal and weight pretty much nothing.





Almost done

[kazuaki]

OK, so here are some pics that get you caught up to the current state of things. I'm using a Pro-Line Slipstream body that I did some creative trimming on. The idea is to keep it aerodynamic. Not really sure if I achieved that, but it looks cool. The suspension is "tied down" to keep the chassis low. There is still another 1/2" to 3/4" of travel left.

With HPI Super Nitro belted slicks on Super Star wheels...





Here are a few with some custom made foams on stock wheels...

[kazuaki]

I weighed things as I went through this build. My friend's bone stock Mini E-Revo is sitting here and it weighs 2.95 pounds with 2 stock nimh battery packs. The completed truck in the pics above weighs 3.95 pounds with the big packs pictured, a Ko Propo receiver and EZRUN ESC installed. I will not be using the EZRUN, but itis all I had to get the weight. So, it is 1 pound heavier. The vast majority of that weight is the batteries and motor though. The chassis itself is only 100 grams (3.5 ounces) heavier than the stock chassis/receiver box/skidplate combo. If I were to go to thinner metal (likely 0.100") I could shave another 2 ounces or so. I'm hoping the weight won't be too much of an issue for top speed with the powerplant I am running.

BTW, the ESC I plan to run is the Mamba Max Pro that I am waiting on. I'll be running it on 6S.

Another thing you cannot see in the pics. I have made a flat spot on the tranny input shaft. I am using an RCM 4mm/5mm sleeve to run a pinion gear on there. So, I will be running pinion gears on the motor and the tranny. This was the only way I was able to get the gearing options I want in the space provided. I have tested this pinion-on-pinion arrangement in a stock chassis and it seems to work OK. Not sure if it will present any issues or not. Opinions on that?