Kyosho TF5 rtr Spur gear and pinion?
Hello rctech,i am glad to talk with you for one more time.
i need your help about the correct choose about spur gear and pinion gear. right now i am owned 1 combo ezrun 8.5t Ezrun 4000KV and i am playing with 2cell battery 5300mah the speed isnt enought for me, and i need more. the problem is the motor can handle from 36 pinion to 40+ or will be too much for it? i am using the stock spur gear and pinion gear. spur gear: 68t 48p pinion gear 36t 48p but as i say i need more top speed. what u suggest me to do? what is better for me? to change motor to 5.5t or to change the spur gear and pinion gear from another car.but which one? thank you all for the help i appreciate it. |
I would go into your local hobby shop and see what spur/pinion gears they have for you
It looks like your gearing is a long way out , i would go more allong the lines of 100 spur and your 37 pinion most spurs and pinions fit all types of car but check the temprature of the motor every 2 mins of running |
Originally Posted by sidecarphil1
(Post 10439422)
I would go into your local hobby shop and see what spur/pinion gears they have for you
It looks like your gearing is a long way out , i would go more allong the lines of 100 spur and your 37 pinion most spurs and pinions fit all types of car but check the temprature of the motor every 2 mins of running it supposed can play till 50celcium or i am wrong? i was thinking to move it a lil bit long the gearing with only just 40t pinion from 36t.what do u think? thank your for fast reply. i was in local hobby shop but kyosho the min spur gear is 68t and pinion max 36 for 48p ofc i am talking. |
Originally Posted by *Kezar*
(Post 10439434)
i run it with full throttle for 20 mins and when i check for temperature was 25celcium in motor and 20 in esc.
it supposed can play till 50celcium or i am wrong? i was thinking to move it a lil bit long the gearing with only just 40t pinion from 36t.what do u think? thank your for fast reply. i was in local hobby shop but kyosho the min spur gear is 68t and pinion max 36 for 48p ofc i am talking. |
Originally Posted by sidecarphil1
(Post 10439422)
I would go into your local hobby shop and see what spur/pinion gears they have for you
It looks like your gearing is a long way out , i would go more allong the lines of 100 spur and your 37 pinion most spurs and pinions fit all types of car but check the temprature of the motor every 2 mins of running
Originally Posted by sidecarphil1
(Post 10439526)
50 degrees C is a good safe temp Yes , but i think with the other gearing i sugested you will be safe and get more speed and fun out of your car ,
like from 36 pinion to 40+? and thats all? thank you. |
Originally Posted by *Kezar*
(Post 10439538)
so your opinion is just a lil bit long gearing?
like from 36 pinion to 40+? and thats all? thank you. I have looked on Kyosho website and the spur gear is just the same as all the other universal spur gears that can be bought online or at a good hobbyshop , i would look into the gear range i told you in the 1st post if your in doubt ask at another better hobbyshop |
aha i understand.
with a fast quick on that site http://dhrc.rchomepage.com/RolloutCalc.htm my stats its like that http://i43.tinypic.com/33af63b.png my Final ratio i think its 4.72:1 |
The problem you might have here is the motor can't produce enough torque to get you going any faster. If you go to a higher fdr you might allow the motor to spin at a higher rpm, and have more punch at the same time.
|
Originally Posted by wollow86
(Post 10440292)
The problem you might have here is the motor can't produce enough torque to get you going any faster. If you go to a higher fdr you might allow the motor to spin at a higher rpm, and have more punch at the same time.
that i afraid to do.. i am not sure if can handle bigger pinion etc. long gearing. |
You want a smaller pinion, not a bigger one.
What I mean by higher fdr is say 5.5 instead of 4.5, this should allow the motor to get to its full rpm. |
Originally Posted by wollow86
(Post 10441464)
You want a smaller pinion, not a bigger one.
What I mean by higher fdr is say 5.5 instead of 4.5, this should allow the motor to get to its full rpm. i will test it to see what is going on. or the next step is to buy 5.5t for tf5. thank you all guys. |
Originally Posted by *Kezar*
(Post 10443680)
Ok i got it. :D
i will test it to see what is going on. or the next step is to buy 5.5t for tf5. thank you all guys. i think an 8.5 can be very quick with the correct gearing |
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