550 question

[michael88997]

ok i traded for a hurricane 550 and since im new to electrics i had a question... i got the z20 installed right now but i also got the rcp 1100kv motor. im pretty good at 3d and when i was using 2 3s 2200mah batteries the heli doesn't have much power or "pop" i got a bunch of different gears but he said its setup the best right now... im going to get bigger batteries to use the 1100kv motor this summer but for right now what is the best way to gear it for 3d?

[MartinS819]

Which blades are you using? You should be geared for at least 2200 headspeed IMO. For more extreme 3D go to 2400 or higher like Finless does, but IDK if the Z20 can be very efficient at that HS, you might end up bogging it. The Z20 should be fine around the 2200 range though. What HS and pinion/gearing are you running now? BTW if you have plastic grips I've read not to go to the 2400 HS or the blades fly off. Someone correct me about that if I'm wrong.

[mjdee14]

Generally 2000 is the basis for going to metal grips.

The Z20 will never have the pop of the RCP or Z30...best you can do would be a 15 or 16t pinion. The 16t is getting up there and I have never tried it.

I just installed a 15t pinion and a 20 t OWB tonight. according to Ezycalc @ 85% eff its should get 2165 hs and at 90% almost 2300....

I am anxious to try it and see what I get, I'm getting better at mild 3D and would like to have "More power" arh, arh, arh..as the Toolman would say...

[michael88997]

im not sure whats on there now but i have a 14t and 12t pinon so my guess is 13t is on there. and i have a 60t front gear and i think he said stock one is on there... i will verify once he emails me back... im using the black carbon fiber blades whatever their called lol... so if a higher tooth count on the pinon give more headspeed do i need to change any other gears? i should probably get the main grips... anything else i need 2 upgrade and do you know wheres the cheapest place 2 buy?

[michael88997]

but right now im using 2 3s 2200mah packs and running 100% flat tc and i can bearly do tictocs without it bogging alot which is my concern

[vicrc]

Get a bigger pack around 3300 mah, Z20 is only for mild 3D. No quick tictocs on the Z20, maybe rainbow. Put the other motor in you'll be happier, use CF blades with bigger motor.

[mjdee14]

but right now im using 2 3s 2200mah packs and running 100% flat tc and i can bearly do tictocs without it bogging alot which is my concern


If your into Tic Tocs the Z20 will never be good enough....as stated get at least 3300 packs and use the other motor.....the Z20 is great, but it does bog down at high pitch. You will never get the Grunt power from it, but it runs very good on 2200 or 2500's.25c lipos.

You didn't mention what C rating your 2200's have.....if it's anything less than 25c it could be a big part of your problem. Many kits were supplied with 18c packs.....many people have puffed them just hovering...

[michael88997]

yea im planning on buying some 3300 or 3000 packs this summer but until i have that kind of money i just wanted to know if theres any way to get a little more out of this z20 without killing my 2200 packs

[michael88997]

You didn't mention what C rating your 2200's have


i have 2 2200mah kong powers which are 25c and i have 2 2170 evo25s...

well i guess im into harder 3d than i though i was because im into fast moving tictocs, piro flips, death spirals... all that sort of stuff...

[mjdee14]

Michael....you are definately beyond the capabilities of the Z20 and 2200 lipos....

If your getting to do those types of manuevers with your current set-up...you have about maxed it out.....

The Z20 really is for longer flights times and mild areobatics...loops..rolls..stall turns....flips....

I just don't think it has the raw power you need to do high pitch 3d stuff.

maybe someone else has a better Z20 set up and will chime in, but from what I have most move up to the Z30 or the RCP....at the cost of bigger lipos. 3300 and above.

Are your lipos and motor coming down fairly hot ? If not you may be able to push them a little more...bigger pinion, 20t OWB...etc.

[michael88997]

no actually i test flew it twice last weekend and the packs after 4.30minutes were like 80 degrees and the motor was just warm... if i do have a 13t pinon could i try that 14t without buying metal blade grips or should i get them... also will that do much for rpm increase? and one off topic question... i noticed the ball links on the carrier arms. seesaw and top thing are all in the middle... if i put those to the inner would that increase my 3d a little?

[vicrc]

I have tried pushing the Z20 with 8sA123 2200 rpm was max with 14t and it still bogged. Higher pinion like 15 or 16 will only kill my lipos even at 3300mah 20c-25c rating. Z30 is pretty powerful with 14t very little sign of bogging.

Is this a carbon fiber frame? its almost an absolute for higher power motors. You can run the plastic... but for how long?

[michael88997]

its the plastic frame... i was going to run it until i start using bricks to fly and then get the carbon fiber frame... i think im going to take advantage of that rh deal and get the upgrade package for some metal main grips

[michael88997]

so can i put this 14t pinon on there with the z20 and not burn up my packs?

[mjdee14]

so can i put this 14t pinon on there with the z20 and not burn up my packs?

Absolutely.....the 14t runs great...I just put a 15t on mine with the 20t OWB and will try that in the next few days...

Will post my results when I get a chance.

[michael88997]

will the 14t increase head rpm? im going to get the kit on sale at ready heli anyway...

[michael88997]

ok right now the front gear is the 50t one or 51t and a 16t pinon... i have the 42t front gear and 13,14,15,16t pinon... so would 42t with 14t pinon give me good rpm... if i put the 15t is that pushing my 2200 batteries and z20 too much?

[vicrc]

Keep the main gear at 61, 42 at the front with 14t pinion and 20 OWB all is good for the Z20 with 6s lipos. You still need at least 20C lipo ratings. That will set the speed around 2100-2200 depending on blades used, darn good for mild 3D. With 3300mah packs expect 7-10 min depending on how you fly it.

[michael88997]

yea my lipos are 25c so im good there... ill put in the 42 front and 14t pinon and then add all the bling once it gets here :) but once i get 3300mah packs im putting in the rcp 1100kv

[bearwood]

Here is a headspeed calc that makes it easy http://www.ezfly.se/hscalc.htm. With Z20 motor do you have? there is a 980 and a 1470 and I thought I saw somewhere a 1700ish?

[michael88997]

whats the stock main gear and one way gear teeth count?

[michael88997]

ok got that but its showing at that it will be 1920rpm with 42 and 14t pinon but if i put on the 15t pinon its only 2057... i guess ill try the 14 then 15 and see which one i like better

[Hawk18052]

Isn't the higher rpm what ya wanna shoot for?

Hawk

[michael88997]

yea but since im still running 2200 packs i dont want to put on the 15t pinon and have it burn them up... i guess i could put the 15t on and fly for like 3 min and see how it does... i still thought with the 42t and 14tpinon it would be over 2000rpm and not 1920

[mjdee14]

yea but since im still running 2200 packs i dont want to put on the 15t pinon and have it burn them up... i guess i could put the 15t on and fly for like 3 min and see how it does... i still thought with the 42t and 14tpinon it would be over 2000rpm and not 1920

Mike....I just installed the 15t pinion and 20t OWB...should be good for about 200 more RPm....

I'm also using 2200 Hextronic packs along with 2500 and 3300....I'll post some Eagle tree data after I get some some flights on it. I'm anxious to see what it does....and if I need to go back to the 14t pinion....

Both together might be too much.....swinging 515 cf blades.