Fw: [問題] OHV or DOHC是比較好的?

[timche2 (CWALK)]

※ [本文轉錄自 CAR-TUNING 看板 #1Fn2JJFy ]

作者: timche2 (CWALK) 看板: CAR-TUNING
標題: [問題] OHV or DOHC是比較好的?
時間: Tue May 29 09:22:22 2012

我這樣問，是因為看了一個Camaro ZL1 vs Mustang BOSS的影片回復

被白人網友噓得亂七八糟   所以來求問

我說mustang比較好   因為有DOHC  還有做出一個Concept,

機械增壓V8  (少於6公升排氣量 )640HP     水準已經接近Panamera 700GT

Camaro並沒有





網友的回覆有好有壞:

your a fucktard it has the best dampers in the world. lambos audi porsche
most exotics all use GM magnetic dampers. and im sure that rear axle is so
much better than independant rear suspension? as far as the more valvers per
cylinder goes let me put it this way just because you have a hammer thats
made from many nice exotic pieces doesnt mean its going to perform better
than my hammer my daddy gave me.


就是說藍寶堅尼 奧迪 保時捷都用老美GMC的   磁鐵懸吊

我GOOGLE一下，藍寶堅尼好像是有用到      藍寶-奧迪-保時捷是同一家公司(VW)

可以想見

Higher tech? DOHC has been around since the 1920s. The DOHC concept is
terrible if you are concerned about weight, complexity, and packaging. The
Mustang engine is much bigger, wider, and heavier than the chevy LS. This is
why your ricer friends in the drift world swap to chevy LS engines. It is
compact, makes a ton of power, and frequently weighs the same as many of the
4 cylinders they replace. Educate yourself.


大約是說DOHC當初設計是會增加重量的，

也指控說那些會把GMC LS1換到RX-7裡面的理由，是這個

Mustang引擎過大等等




也有網友說，那為什麼NASCAR都用OHV引擎其來有自

當然我沒開過OHV車也看過灣岸   OHV扭力大嘛





所以我想問板大，DOHC還是OHV好?

日本車給我的教育是: 同車款頂級車TRIM  才會有DOHC

這美式雞肉車，我只看得懂外型  數值   其他看不懂了;

畢竟我不是機械系的    感恩

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◆ From: 140.112.7.214

※ 發信站: 批踢踢實業坊(ptt.cc)
※ 轉錄者: timche2 (140.112.7.214), 時間: 05/29/2012 09:22:39
推 guithawk:OHV怎麼跟DOHC比？除非你轉數不做高兩個才有得比
→ guithawk:OHV不利高轉，但要榨出馬力還是要靠高轉數（不然F1轉數稱
→ guithawk:撐那麼高是撐心酸的嗎？)
推 guithawk:OHV馬力要夠大，就要採用大排量大扭力
→ timche2:難怪HONDA會在F1出頭   高轉速很有名
推 guithawk:本田？F1有這家車廠？（大誤
→ timche2:有阿怎沒 我國中的時候還看過科學人雜誌honda f1介紹
→ timche2:honda因為搞了個渦輪引擎啥得，我不記得，從此被規範
→ timche2:honda f1 車   全身上下都是向遇風下壓的尾翼片狀物
推 guithawk:樓上要不要更新一下新的F1知識......
→ c60203:honda經不起金融海嘯 忘了哪一年就退出f1了
→ timche2:然後現在type-R也沒了