My Uber Revo..

[Bondonutz]

Originally Posted by Mentat

thing about those servos above are that they can use 7.4v without any type of regulator. full 2s lipo! and hella large torque, there is a speed model too. $199 tho!

These (Hitek HSR-5990TG Robot servos) are rated to handle 7.4 as well and are 129.99 depending where purchased.

http://www.rcplanet.com/Hitec_HSR_59.../hrc35990r.htm

Size: 1.57" x 0.78" x 1.45" (40 x 20 x 37mm)
Weight: 2.39oz (68.00g)
Torque: 333.29 / 416.61 oz.in (6v/7.4v)
Speed: 0.17 / 0.14 sec @ 60 deg.
Operating voltage: 6.0 to 7.4V
Max speed: 0.17 sec/60 degrees at 6.0V
0.14 sec/60 degrees at 7.4V
Stall Torque: 24.0kg.cm (333.29oz.in) at 6.0V
30.0kg.cm (416.61oz.in) at 7.4V
Operating Angle: Max 180 degree
Connector wire length: 300mm (11.81in)