喝咖啡撒蒜末 发表于 21-8-14 12:31:01

HPI RS4侧排改尾排,无动力损失(至少我认为是)

虽然我12年第一辆车就是fw06,但是真正玩油车还是最近。之前是模友一起玩,他们给我调好车,我直接玩https://app.rcfans.com/public/emotion/face_002.png
所以有什么不对的,还请指正!首先理论准备,了解二冲程发动机排气原理,以下摘自网络
http://image.rcfans.com/pic/20210814/1628913732002072745.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20210814/1628913732017358121.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
其实以上理论你只需要知道,排气管是有造型和尺寸要求的,起码要是前段长且坡度缓,尾段要短且陡。所以HPI RS4 DRIFT这款车的排气(圆柱形)会造成发动机动力损失,如下图。这款官方尾排的漂移车架只有一个档,对动力要求不要太高。所以直接使用这款排气可能会造成二档升不上去。
PS:为什么不直接把这款尾排漂移车改竞速?成本太高!1.原厂头单尾直需要换差速器,2.二档发动机齿、大齿。3.而且这款发动机中置,改了之后会造成重心问题,跑不直!
http://image.rcfans.com/pic/20210814/1628913980388688500.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
所以,直接使用普通排气管往车尾部延伸就行。保证你的连接管不要高于出气口太多,不然造成废油排不出去。我用的KYOSHO连接管,和FW06的排气
http://image.rcfans.com/pic/20210814/162891473303420580.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
和右后轮造成干涉,切!
http://image.rcfans.com/pic/20210814/162891476623688124.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20210814/1628914766635891689.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
和左后轮也造成干涉https://app.rcfans.com/public/emotion/face_004.png,继续切 排气固定杆,用钥匙扣取直固定在后油压架上。
http://image.rcfans.com/pic/20210814/1628914847591513134.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20210814/1628914847969513471.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20210814/1628914848340121432.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20210814/1628914848669604890.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
为了排气足够的低,固定卡扣要切掉,电池盖卡扣切一半。
http://image.rcfans.com/pic/20210814/1628915374775834193.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
已经换新发动机,调试完成,抽空拍个视频https://app.rcfans.com/public/emotion/face_002.png

喝咖啡撒蒜末 发表于 21-8-14 12:36:00


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foxli 发表于 21-8-14 17:15:03

不错不错,技术贴

GLOBE 发表于 21-8-14 18:47:45

然后你会发现,折腾那么多,实际跑起来一样,没鸟用,但是支持你,玩车就是应该多思考多动手,不像有些人,只会发一些没有任何营养的帖子,把自己的车子拍个照发个图,然后配几个字,纯粹就是耍存在感。

喝咖啡撒蒜末 发表于 21-8-14 19:20:03

GLOBE 发表于 2021-08-14 18:47
然后你会发现,折腾那么多,实际跑起来一样,没鸟用,但是支持你,玩车就是应该多思考多动手,不像有些人,只会发一些没有任何营养的帖子,把自己的车子拍个照发个图,然后配几个字,纯粹就是耍存在感。

不不不,侧排会导致油喷到车壳上,腐蚀车壳,都是小点子洗不掉。改后排之后我可以换个新壳了https://app.rcfans.com/public/emotion/face_002.png

喝咖啡撒蒜末 发表于 21-8-14 19:28:40

foxli 发表于 2021-08-14 17:15
不错不错,技术贴

哈哈哈,你看这个排气眼熟吗?

GLOBE 发表于 21-8-14 19:32:24

喝咖啡撒蒜末 发表于 2021-08-14 19:20
不不不,侧排会导致油喷到车壳上,腐蚀车壳,都是小点子洗不掉。改后排之后我可以换个新壳了

嗯,我说得是速度动力没两样,

喝咖啡撒蒜末 发表于 21-8-14 19:38:22

GLOBE 发表于 21-8-14 19:32
嗯,我说得是速度动力没两样,

是的,玩模型就在于折腾,改尾排动力哪怕轻微损失我都可以接受

排骨年糕Zz 发表于 21-8-14 19:44:20


http://image.rcfans.com/pic/20210814/1628941454294564645.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
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LIURUXU123 发表于 21-8-14 20:12:24

HPI最早出的RS漂移版本就原厂OP了TSAIS的后置尾排.原厂双速.原厂碳二楼板.碳避震架.等等…..
个人感觉还是原厂的这个尾排完美….不过楼主的想法是对的.动力影响是不大…PS:这个底盘是800块收来的.前几个月….这个原厂尾排版本我找了15年之久….后出的那个尾排黑色排气版本就是垃圾.
http://image.rcfans.com/pic/20210814/1628942834071899836.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20210814/1628942834077639357.jpg?x-oss-process=image/watermark,image_cGljLzIwMjAwNzIxL29zc18xNTk1MzM4ODExNTY2XzIzMl8xMThfMzI2LnBuZw==,t_50,g_se,x_20,y_20
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