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標題: 如果你架車啲s彎唔夠快(如轉左後不能很快轉番右), 你會: (可選多項) [打印本頁]

作者: billy86che 時間: 2008-3-6 13:47
標題: 如果你架車啲s彎唔夠快(如轉左後不能很快轉番右), 你會: (可選多項)
如果你架車啲s彎唔夠快(如轉左後不能很快轉番右), 你會: (可選多項)

作者: shouldbe 時間: 2008-3-6 14:21
頭尾加 camer 角度

作者: haeconelson 時間: 2008-3-6 15:18
頭加 camer 角度and選用較硬頭彈簧

作者: ANDYMIRIAM 時間: 2008-3-6 15:39
我會搞~Servo saver ....

作者: sfdo 時間: 2008-3-6 22:00
呢個問題我估除左彈簧軟硬問題之外，仲係鬆緊問題。
即係墊多D 介子彈簧會緊 D，墊少D會鬆D。
仲有差速調較。

作者: typhoon8 時間: 2008-3-7 08:02
會嘗試由1做起看能否解決

1.換頭較硬彈弓
2.選用較濃(厚)頭油壓油
3.調鬆前珠差
4.檢查servo 齒是否有轉動不順暢
5.toe in 前輪,toe out 後輪

作者: haeconelson 時間: 2008-3-10 19:44
前camber多D同前彈簧軟D

作者: billy86che 時間: 2008-3-11 09:25

原帖由 haeconelson 於 2008-3-10 19:44 發表

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前camber多D同前彈簧軟D

Interesting. (while most other people choose to use harder front springs)

作者: cowboy 時間: 2008-3-11 15:24
請問個塲係唔係淨得S灣，冇其他灣？使唔使整体考慮？

作者: doooouglas 時間: 2008-3-11 15:49

原帖由 typhoon8 於 2008-3-7 08:02 發表

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.......
5.toe in 前輪,toe out 後輪

係咪應該...倒返轉呢?

作者: billy86che 時間: 2008-3-13 13:41

原帖由 cowboy 於 2008-3-11 15:24 發表

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請問個塲係唔係淨得S灣，冇其他灣？使唔使整体考慮？

I guess if you have to attempt this kind of questions, you have to assume "ceteris paribus" as if you were attempting Econ questions.

作者: cowboy 時間: 2008-3-13 14:16

原帖由 billy86che 於 2008-3-13 13:41 發表

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I guess if you have to attempt this kind of questions, you have to assume "ceteris paribus" as if you were attempting Econ questions.

師兄請原諒小弟文化水平低，可以詳加解釋？

作者: billy86che 時間: 2008-3-13 15:27
對不起, 意思即暫不要考慮其他因素, 只集中 “'s' 彎慢應做什麼” 作討論.

作者: cowboy 時間: 2008-3-13 22:17

原帖由 billy86che 於 2008-3-13 15:27 發表

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對不起, 意思即暫不要考慮其他因素, 只集中 “'s' 彎慢應做什麼” 作討論.

無關係Billy兄！我會升高roll centre。

作者: man2008 時間: 2008-3-19 10:19
我初哥唔識野, 改頭單會否對S彎有幫助?

作者: LANCIA 時間: 2008-3-21 12:09
升高roll centre,会吾会车身滚动变大左架?睇样甘仲慢播

作者: cowboy 時間: 2008-3-22 09:58

原帖由 LANCIA 於 2008-3-21 12:09 發表

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升高roll centre,会吾会车身滚动变大左架?睇样甘仲慢播

相反，減少滾動。

作者: jefffff 時間: 2008-3-22 10:34

原帖由 billy86che 於 2008-3-11 09:25 發表

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Interesting. (while most other people choose to use harder front springs)

前硬會定D,前軟會第一下入的反應快.

作者: billy86che 時間: 2008-3-24 11:02

原帖由 jefffff 於 2008-3-22 10:34 發表

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前硬會定D,前軟會第一下入的反應快.

but look at the question, it is not "第一下".

作者: Aurora 時間: 2008-4-8 14:52
Interesting question, and I think I will try the subsequent steps depending on how slow is the response. Of course, the actual result will be subject to actual track testing:

1) Increase rear dampening
2) Increase rear and front dampening
3) Increase rear spring rate (all dampening go back to normal)
4) step 3 + step 1
5) step 3 + step 2
6) step 3 + Increase front spring rate

Assumption:

1) This zip-zap will constitute only part of the course, and I don't want to cut a forest down just for a tree by directly going to change spring rate.

2) The front spring rate is somewhat adequate, and allow the car to at least enter the first turn alright (so it is not too hard to even initial a turn)

3) The reason for choosing to use a higher rear spring rate before using a harder front spring--
To make the car able to quickly make consecutive turns, the chassis must not have too much front/rear weight transfer. And the harder rear will prevent too much weight transfer backward during the exit of a turn, which also allow more front traction to initial the next turn.

[ 本帖最後由 Aurora 於 2008-4-8 14:54 編輯 ]

作者: billy86che 時間: 2008-4-9 11:14
Have to agree with your point 1 of your assumption & part of point 2 but not point 3 since mini-z scale 'S' courses rarely allow swift movement of the throttle as it takes a time within a mili-second. Very few people can demonstrate "a back-forth weight transfer" by moving the throttle stick so accurately within that 'lightning' moment of time. Even if there are people who can do that, probably only by applying brake, the car won't react so quickly and predictably.

In a word: scale matters.

Also, I guess altering the car's manner on "left-right weight transfer" is more crucial to solving the problem than on "back-forth weight transfer" if the throttle is usually held constant at that short period of time. Agree?

[ 本帖最後由 billy86che 於 2008-4-9 12:31 編輯 ]

作者: Aurora 時間: 2008-4-9 14:34
Most certainly, and I guess it is probably the way I write it making it a little confusing to read--basically what the point 3 is saying is that since the S curves demand fast response of a car, it will not be wise to have car setup so the chassis will keep rocking back and forth in between corners, when a driver might apply very slight throttle in between the curves.

Of course, whether there is room to apply a slight throttle will be subject to how tight and how deep are the consecutive S curves. If the curves are so far apart and ever so shallow, then it will be so much like a straight line that none of these problems will really matter any way...

And yes, totally agree on the point of unnecessary L & R weight transfer is also a problem to not able to make the consecutive S curves. I guess in short, any unnecessary weight transfer is probably not good for making consecutive S curves in shortest time, or not good for any race, as a matter of fact.

And for reference, to prevent too much L&R weight transfer(or traction rolling), I probably will lower the car ride height as my attempt.

[ 本帖最後由 Aurora 於 2008-4-9 14:59 編輯 ]

作者: billy86che 時間: 2008-4-9 14:45
Also, when you speak of "increase dampening", do you refer to "increasing the travel of the dampening" or "adjusting the viscosity of the dampening material"?
If you meant the latter, did you mean increasing the viscosity or decreasing it?

Do you mind specifying these?

作者: Aurora 時間: 2008-4-9 15:05

原帖由 billy86che 於 2008-4-9 14:45 發表

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Also, when you speak of "increase dampening", do you refer to "increasing the travel of the dampening" or "adjusting the viscosity of the dampening material"?
If you meant the latter, did you mean in ...

By that, I mean increasing the viscosity of the material used for dampening on Miniz. Say if we are using Kyosho diff oil 5000 on the upper arms of rear knuckles, then I will attempt to solve the problem by using KY 15000.

These thicker dampening will slow down the rear spring compression, which will probably give more(or keep) traction to the front.

作者: billy86che 時間: 2008-4-9 15:37

原帖由 Aurora 於 2008-4-9 15:05 發表

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By that, I mean increasing the viscosity of the material used for dampening on Miniz. Say if we are using Kyosho diff oil 5000 on the upper arms of rear knuckles, then I will attempt to solve the ...

I'm afraid to say I doubt whether thickening the rear oil can give the traction to the front. Also, doing this will make the car even "lazier" (giving a slower reponse) which is opposite to what the situation requires.

[ 本帖最後由 billy86che 於 2008-4-9 16:05 編輯 ]

作者: Aurora 時間: 2008-4-9 18:51

原帖由 billy86che 於 2008-4-9 15:37 發表

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I'm afraid to say I doubt whether thickening the rear oil can give the traction to the front. Also, doing this will make the car even "lazier" (giving a slower reponse) which is opposite to what t ...

I probably have to beg to differ--the change of dampening might not be so prominent as changing spring, but it will affect the handling for sure. And that is my reasoning/logic behind taking one step at a time to make those changes. If a car is really totally unresponsive, one could try directly going into step 5 or step 6.

To further back it up, checkout the serpant cheatsheet that you have (the line for 'steering response') and also compare to the Hudy cheatsheet that I gave you earlier (also 'steering response -to make faster'), both will also show that changing rear dampening/spring will affect how fast a car will response.

I too would think changing the front spring will probably give the car a faster feel, but from experience, it also seems harder for my AWD to intialize a turn; and that is reason why I didn't choose it at the first hand. Anyway, I guess the best way to find out probably is to test on track.

[ 本帖最後由 Aurora 於 2008-4-9 18:53 編輯 ]

作者: billy86che 時間: 2008-4-9 21:31
I remember you now. Nice to talk to you. I was only interested in discussing with other players. It doesn't mean I have experienced such a problem.

I understand that every move has its consequences and certainly I would not focus on one corner without considering others. However, I will still 'chop down a smaller tree to make space for a bigger one'. And here, I will choose to use a thinner oil or adjust the down stops to see if I can earn some speed for the whole lap.

[ 本帖最後由 billy86che 於 2008-4-9 21:39 編輯 ]

作者: Aurora 時間: 2008-4-10 02:25
Hehe...same here, very nice chatting with you.

I think it is good that you will post this type of thread/post to induce healthy discussion, and as you probably could see, I do really enjoy chatting car and car setup with fellow drivers too.

Downstop and thin oil? Hmm, interesting choice, and I hope to try them when I see an appropriate chance. Droop on a Miniz is a strange beast, and I still can't say I have master the skill to manipulate it. Gonna give that a try sometime.

Btw, I had recently went to Japan and driven on two different circuits in Tokyo. Quite an interesting experience, and definitely like to discuss this more in person when I see you next time in HK.

[ 本帖最後由 Aurora 於 2008-4-10 02:28 編輯 ]

作者: 邪靈 時間: 2009-3-10 04:53
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尾toe out d

[ 本帖最後由邪靈於 2009-3-10 04:55 編輯 ]

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