'Superhead+r'的特點
在繼承 "Superhead(Stage 3) "的大直徑氣門和平滑的進排氣口的基礎上,新的滾輪搖臂和新的油路提供了更強的動力和耐用性。一個高性能的氣缸蓋。
進氣口直徑
進氣口:29mm/排氣口:d口
氣門直徑
進氣口:28.5mm/排氣口:23.5mm
鋼制氣門彈簧固定器
氣門桿軸:進`排氣口。
兩種4.5mm
雙彈簧內外彈簧
采用滾輪搖臂
Sp滾輪搖臂,與竹川的Super Head+R在猴型發動機上有口皆碑,用於立式發動機。在保持中高速區間動力輸出的同時,最大限度地提高了超頭的輸出性能,並保持高轉速區間的動力輸出,這是滾輪搖臂的特點。
另外,滑塊式搖臂(廠家配件)降低了凸輪軸與搖臂(廠家配件)之間的摩擦阻力,搖臂內的滾柱軸承使凸輪外形從低轉到高轉都能平穩地跟隨。
通過用鋁材鍛造搖臂本體,克服了滾子軸承增加的重量。
采用M8火花塞
由於采用大口徑氣門,氣門直徑較大,為保證足夠的壁厚,采用 "m8火花塞 "減少了塞孔與氣門之間的壁厚。
這樣可以防止氣缸蓋因熱變形而損壞,保證動力輸出穩定。
空心凸輪軸帶噴油嘴
凸輪軸中心有一條油管,將油引到凸輪鏈輪上。<來自凸輪鏈輪中心的離心力將油從凸輪鏈內部分布出來,從而提高凸輪鏈的耐久性和潤滑效果。
另外,機油噴射器通過凸輪軸凸輪軸,將機油從凸輪軸表面擴散出去,達到有效的冷卻和潤滑。
凸輪軸兩端由滾珠軸承支撐,以減小油軸頸的摩擦阻力(出廠件型)。
另外,與超級頭(第三階段)凸輪軸相比,采用 "油路 "後,凸輪軸體的重量大大減輕。
凸輪軸有三種不同的外形(SR-25/SR-30/SR-35),可根據應用情況進行更換。
套件中包含的凸輪軸是由sp竹川推薦的。
帶油路的凸輪軸支架
凸輪軸支架采用了全新的油路結構,與缸蓋內的油路相連接,讓機油在每個細節上都能得到潤滑。
另外,它還有一個引導機油進入空心凸輪軸的通道,並有噴油嘴,以支持凸輪軸和凸輪鏈的潤滑。
所有氣缸
均采用耐用、密閉的全鋁陶瓷磁缸,散熱效果極佳,並標配出油口至油冷卻器和sp竹川的棒狀溫度傳感器。
sp竹川的溫度計(帶棒狀溫度傳感器)可以測量氣缸溫度。
91cc (內徑57mm): 標准缸翅形狀
124cc (內徑57mm): 標准缸翅形狀
scut125cc (內徑59.4mm) scut136cc (內徑62mm)scut146cc(缸徑62mm):缸翅形狀為大翅型
Scut結構為曲軸箱拆裝式。獲得專利的結構,可以在不需要機械加工和不改變`正常曲軸的情況下,大幅度增加排量。(146cc除外)
另外,scutto缸體配備了噴油機構,只要安裝好,就可以成為噴油規格,由於它直接從缸套噴油到缸體內壁、活塞後部、連桿小端,可以有效地潤滑和冷卻發動機內部。你能做到的賽車120cc/130cc(缸徑58mm):
缸翅為大翅型
缸套是為了讓缸體有更大的壓力,以承受越野駕駛和耐力賽的惡劣環境。
124cc/125cc/136cc/Racing 120cc/130cc活塞為鑄鋁活塞,活塞裙部有鉬塗層,以獲得更好的初始附着力。
Scut146cc采用鍛造鋁活塞。
長沖程曲軸(沖程長度:48.5mm)
高性能曲軸的設計,使曲軸重量與沖程長度達到最佳平衡
曲軸軸承的制造精度高,以確保低振動。新設計的曲軸實現了曲軸動態性能的大幅提升。
對飛輪軸進行特殊的表面處理,以提高抗疲勞性和抗咬合性。
scut 146cc曲軸的長沖程為48.5mm。
■Features of Superhead +R
The "Super Head (Stage 3)" with its large diameter valves and smooth intake and exhaust ports has been succeeded by a high-performance cylinder head with a roller rocker arm and a new oil line structure for even higher output and durability.
Port Diameter
Intake: 29mm / Exhaust: D-type port
Valve Diameter
Intake: 28.5mm / Exhaust: 23.5mm
Steel valve spring retainer
Valve stem shaft: 4.5mm for both intake and exhaust
Valve Springs: Double spring with inner spring and outer spring
Roller rocker arm adopted
The roller rocker arm of SP Takegawa's Super Head +R for Monkey engine is adopted for the vertical engine to maximize the output performance of Super Head and to maintain the output at mid to high speed range and at high rpm range which is the feature of roller rocker arm.
The frictional resistance between the camshaft and the slipper type rocker arm (stock part) is reduced, and the built-in roller bearing in the rocker arm allows the cam profile to follow smoothly from low to high RPM.
The rocker arm body is made of forged aluminum to overcome the weight increase by using roller bearings.
M8 spark plug adopted
Since the wall pressure between the plug hole and the port is reduced due to the larger port diameter caused by the adoption of a large-diameter valve, an M8 spark plug is adopted to ensure sufficient wall pressure.
This prevents the cylinder head from being damaged by thermal deformation, thus ensuring stable power output.
Hollow camshaft with oil jet
An oil line is installed in the center of the camshaft to guide the oil to the cam sprocket.
As a result, oil is sprayed from the center of the cam sprocket by centrifugal force from the inside of the cam chain, increasing the durability and lubricating effect of the cam chain.
In addition, an oil jet passage is provided on the camshaft cam surface, so that oil can be sprayed from the cam surface and cooling and lubrication can be performed effectively.
The camshaft body is supported by ball bearings at both ends to reduce frictional resistance caused by the oil journal (genuine part type).
Also, the weight of the camshaft body has been significantly reduced compared to the super head (stage 3) camshafts through the use of an oil passage.
There are 3 types of camshafts with different profiles, SR-25 / SR-30 / SR-35, and they can be replaced according to the application.
The camshaft included in the kit is recommended by SP Takegawa.
Camshaft holder with oil lines
By installing a new oil line structure in the camshaft holder, the oil line is connected to the oil line in the cylinder head to enable detailed oil lubrication.
In addition, a passage for directing oil to the hollow camshaft with oil jet is provided to support lubrication of the camshaft and cam chain.
Cylinder
All aluminum ceramic cylinder with excellent durability, airtightness and heat dissipation is adopted for each displacement, and the oil outlet to the oil cooler and the stick temperature sensor attachment part made by SP Takegawa are equipped as standard.
Cylinder temperature can be measured by attaching SP Takegawa thermometer (with stick temperature sensor).
91cc (bore diameter 57mm)Cylinder fin shape is standard type
124cc (bore diameter 57mm)Cylinder fin shape is standard type
SCUT125cc (bore diameter 59.4mm) SCUT136cc (bore diameter 62mm) SCUT146cc (bore diameter 62mm):.Cylinder fin shape is big fin type
The Scat structure is a patented structure that allows a large increase in displacement without the need for crankcase disassembly and machining, and with a stock crankshaft.(excluding 146cc)
In addition, the scut cylinder is equipped with an oil jet mechanism, and just by installing it, it becomes an oil jet specification, and oil is directly injected from the cylinder sleeve to the inner wall of the cylinder, the back of the piston, and the small end of the connecting rod, so that lubrication and cooling inside the engine can be effectively performed.
Racing 120cc / 130cc (bore diameter 58mm)Cylinder fin shape is big fin type
The cylinder sleeve is made of thicker material for better durability in off-road driving and endurance racing.
Various pistons
The 124cc / 125cc / 136cc / 120cc / 130cc racing engines use cast aluminum pistons with a molybdenum coating on the piston skirt for better initial adhesion.
The SCUT146cc uses forged aluminum pistons.
Long stroke crankshaft (Stroke volume: 1.5 mm)48.5mm)
High performance crankshaft designed for optimum crankshaft weight balance against stroke volume.
The crankshaft and bearings are manufactured to a high degree of precision to achieve low vibration and greatly enhance the motion performance of the crankshaft.
In addition, the flywheel part of the shuffler
A special surface treatment has been applied to the top and bottom of the plate to improve fatigue strength and galling resistance.
The SCUT 146cc uses a special 48.5mm long stroke crankshaft.