Align 600L, What gears and pinion ?

[WuTangcl]

Hi people,

I want to try a 600L motor on my Hurri, I've seen it in some peoples underlines,
But what I saw this motor is 1620Kv.

I now run the stock 850Kv motor with the stock 50A esc and these gears:
Revco 23T 0.6m Pinion (http://www.readyheli.com/Hard_One_0_6M_Hardened_Pinion_Gear_5mm_shaft_p/ho-3023.htm)
Revco 68T 0.6m 1st gear (http://www.readyheli.com/Revco_Perfect_Circle_0_6M_CNC_Machines_1st_Gear_Ga _p/pc-5068.htm)
Revco 61T 0.8m main gear (http://www.readyheli.com/Revco_Perfect_Circle_0_8M_CNC_Machines_Main_Gear_H _p/pc-5061.htm)

Could anyone please point me out on Readyheli to what gears/pinion I should use
to achieve a headspeed somewhere around 2000/2100rpm ? With my current setup I get 2048rpm.
I prefer to stick with the Revco gears, only the smallest pinion I can get from those is 18T.
Which would give a headspeed of 3140rpm… Not acceptable 
But even more, with the stock gears and the smallest available poinion 13T it will spin 3294rpm.

So I really got no idea where to go with this, Anyone that runs a 600L and wants to help out ?

[dadde]

I use a 600L but I use the stock gears 14/61/61 gears
Gives me a verry nice headspeed.