Exo 500

[Luis Murillo]

Got the special drill bit today. Heres how it came out. Will add more picture once install.
I did ended up buying a pyro 600-09 and order a 20th pinion for it incase this mod did not work out. going to ask whats the different between this 2 motor beside 650 has more power. Looking for more efficiency than power but still having a decent head speed for mild 3d

[dunkonu23]

Originally Posted by Luis Murillo

Got the special drill bit today. Heres how it came out. Will add more picture once install.
I did ended up buying a pyro 600-09 and order a 20th pinion for it incase this mod did not work out. going to ask whats the different between this 2 motor beside 650 has more power. Looking for more efficiency than power but still having a decent head speed for mild 3d

Sounds good to me. The kits are coming with 20 tooth motor pulleys already bro.

Scott

[dogbreath]

I thought I got an 18 tooth with my kit. 8.33 / 1. I'll have to count, I guess.

Dan

[dunkonu23]

I'm going by the manual. If I'm wrong, then I guess I'm wrong. The governor I'm currently using does not depend on gear ratios. In the test model, I used 20 teeth for the motor pulley when implementing the governor.

Scott

[Luis Murillo]

I remember reading that it came with 18. Gues when i get home i will count to make sure.

[Chris Nifty]

Don't take anything for granted mate, I always count the teeth on a pulley before fitting. My kit and I presume everyone else's has the 20 tooth.
The last time I checked just the other day, there was not even listed any other sizes at Experience RC or Compass Heli Australia.

[Luis Murillo]

Yeah you right. Ill just send it back and get store credit. For the head speed i want and to stay %80 on esc the pyro 600-09 seem a better fit.

[dogbreath]

I counted 20 teeth -- West Virginia edition, I guess.
Dan

[honkytown]

no, the manual is just wrong. -.-

Originally Posted by dogbreath

I counted 20 teeth -- West Virginia edition, I guess.
Dan

Originally Posted by honkytown

the kits in europe are delivered with a 20T stock pinion, it will take a couple of weeks until 18/19/21/22 will be available, i was told.

150 / 20 = 7.5 ratio

available ratio: 8,33-6,81

[Keven Schauz]

The 20t in the manual is correct and all the kits come with the 20t pinion. But when changing the manual from 18t to 20t someone forgot to put the new gear ratio in there.

So 7.5 is the right one for the 20t stock pinion.

18t: 8.33
19t: 7.89
20t: 7.50
21t: 7.14
22t: 6.82

[dunkonu23]

Thanks for posting that, Keven!

Scott

[Luis Murillo]

All right thanks for posting that, that should help a lot of people when it comes to setting the esc for the right head speed

[dogbreath]

Are the 18 or 19 teeth pinions available in the U.S. yet? Any ETA if they're not here already? I've not seen them in my searches. Dan

[dunkonu23]

I haven't seen other tooth count motor pulley's, either. Keven went to the trouble to post ratios, so I'm thinking we'll seen them in the not-so-distant future. One thing we do know is that they'll be easy to swap out!

Scott

[Chris Nifty]

I emailed Compass a couple of days ago asking about 18 and 19 tooth motor pulleys and this was the response -
"Hi Chris,
we are working on it but no real time line yet.
Best regards

Juergen
Sales Manager"

[carljonas]

Thanks for the information

[Luis Murillo]

well. been 2 -3 weeks since my son brick my kontronik 120 pro and I have scorpion tribunus coming tomorrow. Just could not wait another week to maiden this heli.

Here my question since I haven maiden. I have the stock blades that are 515 and a set of cyclone 505. Has anyone used the cyclone and can they compare it to the stock blades? Since I wont be able to maiden till Saturday I would like to hear your though so I can have it ready by then.

[dominator]

The stock blades are really good blades. Perfect balance between speed and stability IMO.
I like cyclones as well but prefer the rotor techs because they give a little more lift

[dunkonu23]

I've only used the stock blades and KBDD 515's.

Scott

[Ah Clem]

"I've only used the stock blades and KBDD 515's."

Same here.

The Rotor Techs are quicker, the KBDD's are smoother.

Both work well, my preference is for the KBDD's.