Question about 2200KV on Ext. Savage for Castle Staff

[togepipro]

This is my current setup, I test it last night in front of my home, and I notice that sometimes at start the truck move pretty slow, no matter I press the full throttle. But when is moving normally if I press the throttle a little more It does the Satan wheelie. I don't have enough amps on the batts for this setup? I solder two 35V big capacitors a time ago on the MMM. This is my first time with lipos.

The truck is two year old, the wheelbase is 17". I only change the bearings once.

Differential Ratio: 3.2222222222222223
Transmission Ratio: 2.215277777777778
Other Ratio: 1
Spur Tooth Count: 44
Pinion Tooth Count: 18
Total Voltage: 22.20 6s Lipo 40-50C (Cheap ones) 5000mAh They are new.
Motor KV: 2200
Tire Diameter (inches): 6.69
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0.006
Spur/Pinion Ratio: 2.44 : 1
Total Ratio: 17.44873 : 1
Tire Circumference (inches): 21.02 inches (533.84 mm)
Rollout: 1.20:1
Total Motor Speed: 48840 RPM
Vehicle Speed: 55.71 mph (89.49 km/h)
Effective KV Value: 2200
KT constant: 0.61 oz-in/A

I'm going to test tonight with the 52T spur = 47.14 mph. To see what happens.


A pic of the truck