WC

iTrader: (28)

There's really no need...

Tamiya's plastic shocks are already the best in the business.
Smooth, reliable, consistant... and don't leak.

Any upgrade to alloy - gold TA03 or TRF fluorine coated threaded body - don't really give much improvement, but the threaded body is handy.

But I guess if you've got lots of $$$ then its probably not a wa$te to buy some Tamiya alloy shocks, but I wouldn't bother trying other brands personally.

Ronnie

anyoen can help me with the gear ratio ??

i had a 23T motor and a 11T motor...

for the 11T motor.. I am using the stock spur gears with a 20pinon....

as for the 23T, i am using a 102spur and a 45pinon(0.4)... but I feel that the torge is not there.....

can anyone help to teach me how to calculate the gear ratio for diff motors ??

thanks

Kail

iTrader: (4)

For stock i usually run on 120 40 and for 11 t i use sumthing like 128 32...
gee your gearing is a bit funny leh ronnie....
as for the centre one way i already sort of tried and it feels great clocking slightly faster times tho more concentration is needed to stay consistant

Ronnie

i dunno anything about gearing...hehehe.... thats why i need yr help...

the 83 crash gear and 20pinon gear is suggest to me by someone else who knows how to calculate... but that conbinations are the bigger ones that came along in the box with the car....

they calculate like ... crash gear divde by pinon multiply 2.1333....

but i dunno how they get the numbers.....

Jack

it the num of teeth of the spur gear
divide by the num of teeth of the pinion
then multiply by 2.133
u have a gear ratio then
a general guide... stock motor run in the region of 5 odd to 6 odd
Mod motor.. depending on the num of turn.
from from 7 odd to 9 odd...

Ronnie

err jack...

can tell me what number for what motor or not ??


thanks

Jack

what motor are you using now???

monster_sg

hi ronnie,

Just a rough guide.
-Stock Motor 23-27 turn.
-Modified Motor 7-19 turn.

Gear ratio for ;
Stock Motor, 5-7 Final Drive Ratio
eg ; spur 120T, pinion 40T
Internal ratio 2.133 ( from diff divided by small pulley)
120/40 x 2.133 = 6.4 Final Drive Ratio

Modified Motor, ranges from 7-16 turn.Hardly see 18 turn and above nowdays on the track...
Final Drive Ratio 6-9.

Depends, on the track and traction, before gearing the FDR.
Also battery capacity does make a differents too.

Cheers...

Ronnie

wah..

thanks monster_sg ...and all too...

i am using a 11T motor... 83/20(gear ratio)...

the other is 23T motor ... 102/45(gear ratio)... but very the slow and no power at all....


so for the final drive... as long as fall within the range is ok har ??
11T = 6-9
23T = 5-7

thanks all again..

monster_sg

hi ronnie,

- 11 turn ard 7.8 FDR....can use either 22t or 23t pinion.

- 23 turn ard 6.4 FDR.

depends on the track whether technical or high speed then we either gear up or down by increase or decrease the pinion gear tooth size...

cheers...

Kail

iTrader: (4)

the reason y ya have no power at all for ya 23 turns and that ya car is very slow is becos ya are over gearing it. i calculated ur gear ratio roughly 4.8! tats y u have no torque at all... i suggest tat u do sumthing like wad monster_sg says and try to change ur gear ratio to 6.4. maybe u can try sumthing like a spur gear of 120... at least ya gear ratio will become 5.6888 and its better but bets is change to roughly 40 or 41 pinion with 120 spur... tats the best.. hope it helps. hehe actually i am afraid ya motor comm also wear liao foor ya 23 turn cos over stress it liao.. along with the changes to the gearing some cleaning or comm cutting along with some changing of brushes should more of less help ya also to get the most out of a 23 turn motor, try compressing ya motor spring to become harder so as to try and force more contact between the brush and ya comm. Tho ya comm life might be shorter, the performance of the motor will be better haha i liike very naggy :P

Ronnie

thank u thank u....

U were all so helpfull ........ now i do believe there are helpful pple here in the RC world of sg...

I had encounter many times that other players just ignore me when i ask them questions...

sorry.. for the 23T, I am using 112/45....hehehe

for the 11T(modified), i found that the motor stops running when it becomes too hot... i am using 83/20...which is 8.85..so is it too stress for my motor ?? but it did fall within the range of 6-9..

Nipple

iTrader: (1)

I think that you can use different gears to get a same gear-ratio eg...128/31 is about 8.81

In the past I thought using the smallest spur is better but I am very wrong.

Although using same final drive ratio, different size in the gear cause different load to the motor.(Different stress)

And for 11T on TA04 128/35 should work very well....it about 7.80
And it shouldn't be too hot for your motor.

If it still does, check your drive Train..... something may be binding...

lonestar1127

iTrader: (1)

tat time i use 128/35 on my 12 turn.... the motor was very hot...
the solder on my brushes also melted

Nipple

iTrader: (1)

then you should check your car.....or when you drive, you like to tap your throttle and brake alot???