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05-15-2008 09:53 PM  10 years agoPost 1


Aalborg, Denmark

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I am running the sp version with the following setup:
Quick 990 kv motor
4s1p 4000mAh battery
60 A Dualsky ESC w. BEC
4 x Hitec HS 85 MG servos
Cheap Telebee RCE 500 gyro
The weight is 1525 g

I am currently running a 19 t pinion gear and have a 27 t counter gear to slow the tail down a bit.

I was recommended this setup earlier on, but feel that I am missing some power. I think the gearing is a bit too low and the motor isn't under any pressure at all.

What pinion gear would you recommend? I was thinking about 20 t pinion gear or perhaps 21, but will the head hold up? I believe that the tail will hold just fine with the 27 t counter gear.

What do you recommend? Is there any 400 mm CF blades out there that fits this bird?

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06-12-2008 05:44 PM  10 years agoPost 2
big bird1



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keep her under 2300 rpm and you should be ok ... if you are using wood mains a little less rpm is advisable

make sure your rotor and tail are well balanced - use a 100th gramme scale to achieve this and balance all blades

going beyond 2300 on the v2 is courting disaster

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06-12-2008 10:43 PM  10 years agoPost 3

rrElite Veteran

Beaumont, Texas;

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Actualy , the v2 EP8 Sportsman can run up to 2500 RPM`s on the head speed. DO NOT go over 2500 RPM`s or you risk blowing the heli up, the 6mm main shaft will just fold over and BOOM!!!

EP8 EX twinring frame
Quick of Japan
EP8v2 EX

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