Possible Center Diff Revo

[lincpimp]

After some thought I have decided to build an outrunner powered revo. I have a pair of the Hybrid diff cases with buggy ratio (43/13) gearing and a brand new 3.3 chassis. I have most of the suspension parts and other necessary items.

I would also like to put a center diff in this and power that diff with an outrunner via a pinion gear. I have an ofna k-series diff, the one that uses the 51t plastic gear.

Motor choice would be this one: Scorpion 3026 1400

I would stick with stock height tires and stock drveshafts. Power would be from a pair of 5s 2200 20c lipos wired in parallel for 4400mah. A quark 125b would be my esc of choice.

Heres the speedcalc with my setup, went with the k-series diff for two reasons. I have one here and the 51t gear will allow me to use my current selection of pinions to get the gearing right.

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Spur Tooth Count: 51
Pinion Tooth Count: 16
Total Voltage: 18.5
Motor KV: 1400
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Spur/Pinion Ratio: 3.19 : 1
Total Ratio: 10.54327 : 1
Tire Circumference (inches): 18.06 inches (458.83 mm)
Total Motor Speed: 25900 RPM
Vehicle Speed: 42.02 mph (67.5 km/h)
Effective Speed Rate: 2.27 mph/V (3.65 kmh/V)
Estimated Adjusted Speed: 40 mph (64 km/h) - 5% loss
Effective KV Value: 1400

Hopefully this motor can hold up at 25k rpm. Being a 10 pole motor it should have quite a bit of torque, and it has a built in fan to stay cool. Since it is a higher kv and geared down it should start without cogging. I am also hoping that the use of a center diff will help the front and rear diffs handle the power better.

Battery trays will be custom made, I may even weld some extra al to the stock chassis so the trays are built in. I am going for the lightest weight I can, so I will stick to as much plastic as possible.

Any thoughts, ideas or critisisms are welcome!