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標題: FORMULA 齒比是否1:1 [打印本頁]

作者: cyberkohk 時間: 2011-2-27 12:24
標題: FORMULA 齒比是否1:1
FORMULA 齒比是否1:1 , 唔同T數的MOTOR對不同車種有不同的GEAR RATIO , 是否跟TOURING CAR 一樣計法. THX

作者: skiesm300 時間: 2011-2-27 13:39
本帖最後由 skiesm300 於 2011-3-1 13:29 編輯

i m using 22/63.

作者: salim 時間: 2011-2-27 16:19
must not be 1:1 !!!

作者: cyberkohk 時間: 2011-2-27 16:24
如果MOTOR GEAR RATIO 6.5 , 那麼104T/16T才是正確齒比.

作者: salim 時間: 2011-2-27 19:56
Spur gear / pinion gear

作者: hk_sdu 時間: 2011-2-27 23:24

如果MOTOR GEAR RATIO 6.5 , 那麼104T/16T才是正確齒比.
cyberkohk 發表於 2011-2-27 16:24

登錄/註冊後可看大圖

What do u mean by "MOTOR GEAR RATIO"? does it related to 6.5R motor?

Don't complicate the question and answer.

Touring FDR is = Spur gear / motor gear x Internal Gear Ratio

Forumla has NO Internal Gear Ratio, just use Spur gear / motor gear

作者: hk_sdu 時間: 2011-2-27 23:26

如果MOTOR GEAR RATIO 6.5 , 那麼104T/16T才是正確齒比.
cyberkohk 發表於 2011-2-27 16:24

登錄/註冊後可看大圖

U should say:

如果104T/16T, 齒比是 6.5

but 6.5 gear ration on formula car, it will be very slow. Normal range between 2.9 to 4.5 :1

作者: cyberkohk 時間: 2011-2-28 15:14
我今天試用了93T/25T GEAR RATIO 3.71會否太低?

作者: salim 時間: 2011-2-28 20:44
depends on track...

作者: xxjoexx 時間: 2011-2-28 22:01
各位師兄! JV ~ MOTOR 17.5T/風扇黑朱, 如果用93T齒.齒比應該大約幾多?.....thx!!

作者: cyberkohk 時間: 2011-3-1 13:25
昨天在JV有位帥兄話齒比 1:3 都可以 .

作者: nel3838 時間: 2011-3-1 18:20

我今天試用了93T/25T GEAR RATIO 3.71會否太低?
cyberkohk 發表於 2011-2-28 15:14

登錄/註冊後可看大圖

3.71 should be ok wor....

Also I find with higher ratio, like 4.5, during braking on the end of fast straight, the 104 tend to slip side ways in the a R-turn of JV, which is unstable. I think this is caused by the higher grip due to the differential being on the right (which is a typical problem of a 2WD offsided diff gear box). So by reducing gear ratio to say 3.71, less drag comes from the right, making smoother braking, although cannot have fast braking for the same reason and need to slow down early. This is another reason why 104 cannot go as fast as 4WD touring cars in/out of corners I think.

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