2011年9月5日 星期一

HKS 264° Intake and Exhaust Camshafts

去年開始考慮渦輪升級的同時, 為了周邊的軟硬體做了不少功課, 也列出了心目中理想的配置, 當時就對Hi-CAM產生濃厚的興趣, 也針對Camshaft查了不少資料, High Lift Camshaft 高角度凸輪軸 這篇有比較詳細的討論.
Camshafts是單純的物理機械構造, 它的動作決定了引擎的吞吐量, 如果Camshaft保持原廠狀態, 就算渦輪升級, 還是無法突破Camshaft的限制; 既然釐清這點, 接下來當然就是進行產品Survey, 最後相中HKS的產品(HKS USA官網).
產品說明 如下:
HKS high performance camshafts are CAD designed to optimize torque and horsepower over the widest possible power band. Each camshaft application is offered in multiple profiles, each with their own lift & duration characteristics to suit various levels of tuning. Lower profiles offer substantial gains in power and a broad useable power band with little compromise in drivability. Higher profiles offer greater increases in power, but are tailored for the higher RPM range and racing applications.
HKS camshafts are not reground OEM units; they are machined from new cores which are constructed from a high nickel content iron alloy. By manufacturing all camshafts from new cores, HKS is able to produce camshafts that equal or exceed the quality of the OEM units they are designed to replace. HKS camshafts are direct replacements and are designed to be compatible with the factory valve train components. However, due to the higher profile of some HKS camshafts, HKS high performance valve springs are highly recommended, and required in certain applications.
列出HKS Hi-CAM for Eclipse 4G63的幾項產品比較表.
從表列中可以看到, 除了264° Camshafts之外, 其它各Duration的CAM在安裝時都必須進行CAM Angle Sensor的調整與校正.
考慮到道路實用性(參考 這篇 DSMtuners上的文章)及配合FP Big28的需求, 最後決定購買的是HKS 264° Intake and Exhaust Camshafts.
HKS 264° Intake Camshafts, 進氣端CAM(據說已經絕版, 入手困難).

HKS 264° Exhaust Camshafts, 排氣端CAM.

這兩支HKS 264° Camshaft去年就已經入手了, 至於何時要安裝嘛...
This Fall, Coming Soon!!

1 則留言:

  1. 自從可變進排氣機構普及化後(如本田的VTEC, 三菱的Mivec), hi-cam 就比較少聽到了.

    回覆刪除