輪胎尺吋計算 - 汽車改裝
By Madame
at 2010-01-01T23:44
at 2010-01-01T23:44
Table of Contents
先祝大家 新年快樂...!!!
是這樣的
小弟的車的原廠胎尺吋為 215 / 55 / 17
最近想換大腳 (當然連輪胎也得一起換掉)
可是現在有點麻煩 遇到了一些尺吋上對應的問題
比如說
如果我想換成19吋的胎 為了將表速誤差值減到最低
透過網頁的程式計算後得到兩種尺吋:
一種是 225 / 40 / 19 誤差 0.9% (表速比實際速度快)
另一種是 235 / 40 / 19 誤差 0.3% (表速比實際速度慢)
如果換到20吋的話 也是得到兩種
一種是 225 / 35 / 20 誤差 0.4% (表速比實際速度快)
另一種是 235 / 35 / 20 誤差 0.6% (表速比實際速度慢)
根據上面的計算結果 如果要取最小誤差值
就是選 235 / 40 / 19 或 225 / 35 / 20
看起來好像沒啥問題 但是小弟百思不解的是為何19吋的胎反而要用到"235"
然後20吋的胎反而用到"225"就行了...???
我知道尺吋如果越大 扁平比就要越低
但是輪胎寬度呢...??? 19吋反而要比20吋用得更寬...???
想請教板上各位改裝大大
到底我哪裡錯了...???
如果是你的話 你會用哪一種尺吋 (19的會用哪一種, 20的會用哪一種, 原因...???)
謝謝~
感激不盡~
--
Tags:
汽車改裝
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at 2010-01-05T03:50
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