由买买提看人间百态

topics

全部话题 - 话题: rpm
首页 上页 1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)
t******g
发帖数: 372
1
来自主题: Statistics版 - 怎么在Centos上面安装R package?
于server local与否无关,或者至少给些error log 别人也好知道你尝试了啥,
S/W Requirements:
-----------------
MySQL client library ("libmysqlclient.so") and header files
(see www.mysql.com). For Linux/intel you may use the binary rpms
client+devel+shared, and make sure you also have the header files,
they are *NOT* included in the following
MySQL-client-4.1.7-1.i386.rpm
MySQL-shared-4.1.7-1.i386.rpm
but they are included in the latest 4.1.7 rpm versions.
The library libz. This is a stan... 阅读全帖
p*********e
发帖数: 32207
2
"
However, let's look at some astounding domestic technology. The 2006 Nextel
Cup engine is a severely-restricted powerplant, being derived from
production
components. It uses a production-based cast-iron 90V8 block and 90steel
crankshaft, with a maximum displacement of 358 CID (5.87 liters). A typical
configuration has a 4.185" bore with a 3.25" stroke and a 6.20" conrod (
R/S = 1.91). Cylinder heads are similarly production-based, limited to two
valves per cylinder, but highly developed. The ... 阅读全帖
c*******o
发帖数: 1722
3
来自主题: _Auto_Fans版 - 扭矩比马力有用吗?
375 volt AC induction air-cooled electric motor with variable frequency
drive.
Roadster Roadster Sport
Torque 273 lb-ft at 0-5,400 rpm 295 lb-ft at 0-5,100 rpm
Torque output 295 lb-ft at 0-5,100 rpm.
I do not have the real output plot but i am sure the torque output
remain's pretty constant starting from 0 rpm upto 5,100 rpm, which
literaly means a 'plateau'.
the specs copied from Tesla's website.
V***b
发帖数: 3419
4
我觉得法拉利这个zero turbo lag是忽悠人的,法拉利是把这个turbo引擎调校成了可
变增压,也就是说低rpm是个na引擎,随着rpm增高,逐渐增加boost,最大的torque要
到4750 rpm才来,当然没lag啦,整个torque curve是随rpm增高线性增加的。而不是像
BMW S63B44tu那种1500 rpm就是最大扭矩了,扭矩曲线是个平台。
你让法拉利1500rpm实现最大扭矩输出不可能没有lag,法拉利又不会变魔术,十字曲轴
到平面曲轴也不是质的变化,不会因此实现zero turbo lag的。
c*********r
发帖数: 19468
5
来自主题: _Auto_Fans版 - S2000 Over Rev
F20C 10k rpm = MPS 28.0m/s 11k rpm = MPS 30.8m/s
F22C 10k rpm = MPS 30.2m/s 11k rpm = MPS 33.3m/s
F1 2.4L V8 20k rpm = MPS 26.4m/s...
你那是天顶星人改装的吧……
g****r
发帖数: 636
6
看了你说的三个因素我是有个问题的
涡轮安在排气管上,有一个控制压力的旁路阀
但是压力过低的时候旁路阀是不会开的,所以废气都走涡轮那里走
如果涡轮不在转,那么废气应该是无法出去的是么?
回头看compressor map,boost ratio 1的时候,涡轮的转速应该并不是0?
所以平时就算进气管是真空状态,涡轮也应该是在转的?
那么影响turbo lag的根本因素其实就是涡轮从当前RPM转到target boost的RPM中间所
需要的时间
然而这并不能从工况图里看出来所以,单纯从工况图无法了解到在某一RPM下,进气管
的压力从真空,既是涡轮没有压力,到达到target boost的时间
只能从侧面反应的大概是涡轮的大小
我之所以要找compressor map是因为想要解释清楚峰值扭矩到来的RPM和涡轮大小的关系
如果说台架测试的方法是,从起始点就将涡轮打出boost,那么此时在compressor map
上,我猜这个点应该在surge line的左边,应该是无法稳定的提供足够的气流。而当
发动机转速进入surge line 右边的时候才真正开始发力,打进需要的空气。
而如果起始... 阅读全帖
s******s
发帖数: 1793
7
来自主题: Military版 - 美国人觉得中国拥有美国?
Mr. Roboto
14users liked this commentPlease sign in to rate a Thumb UpPlease sign
in to rate a Thumb Down2users disliked this comment
Mr. Roboto • 1 hour 57 minutes ago Report Abuse
Stop buying Chinese products until they stop the cyber attacks,
treat their workforce humanely, and disarm North Korea from its nuclear
weapons.
1 Reply
Sketch
6users liked this commentPlease sign in to rate a Thumb UpPlease sign in
to rate a Thumb Down1users disliked this com... 阅读全帖
t******l
发帖数: 10908
8
来自主题: Military版 - 中国男人的身材更差
哥们光锤锤到肉没有 RPM 也行? PEAK RPM 总得有个 200 是起码的吧 。。。 这难道
不是得上 HIIT? 。。。
在 60 RPM 到 200 RPM 的区间跑变速跑 。。。
首先奥运短跑队有那个肌肉不行的?特别是看不见的 core muscle group。
奥运游泳队主要是比赛而不是锻炼,而比赛至少 50 yard 。。。 锻炼完全可以 HIIT
为健身不为比赛。


: 不要学下弦月。老出来丢男人的脸。

: 走路45分钟/75分钟和肌肉有啥关系。

: 别以为(军版)女人都是蒸馏水。N浅M深人家不知道。这么搞就是漏短。

: 简单粗暴,锤锤到肉,45/75分钟,又慢又好。

z**********4
发帖数: 305
9
来自主题: Automobile版 - 第一次买车求教:Audi A4 or BMW 328
2010 Mitsubishi Lancer Evolution GSR :217 kW , 291 HP SAE @ 6,500 rpm; 300
ft lb , 407 Nm @ 4,000 rpm
2010 Audi A4: 211 HP ( 157 kW) @ 4,300 rpm; 258 ft lb of torque ( 350 Nm) @
1,500 rpm
你觉得哪个合适日常使用? 明显追求的不是一个东西嘛
r*****7
发帖数: 574
10
来自主题: Automobile版 - 大家帮忙推荐款美国车吧
Ford 近几年质量没的说 具体参考JD POWER
Ford Fusion v.s. Ford Taurus
首先 Fusion是midsize Taurus是Full-size
Taurus 车长多Fusion 30厘米 宽出13厘米 使得Taurus外观设计大气很多
其次 Fusion 动力不如 Taurus
Fusion起配是2.5L I4 发动机 马力 175hp @ 6,000 rpm 扭力 172lb.-ft.@ 4,500 rpm
Taurus 起配 3.5L V6 发动机 马力 263hp @ 6,250 rpm 扭力 249lb.-ft.@ 4,500 rpm
最后 Taurus 内饰和配置高些 装配Sony audio system
Safety 和其他都差不多
但是总的来说一分价钱一分货
g*********s
发帖数: 1782
11
价格好说,就是不知道这个价位是不是直接上Infiniti了。
Infiniti的warranty 4/60k,比Maxima 3/36k好。看指标,马力和扭矩也都胜出。
Horsepower 290 hp @ 6400 rpm vs 328 hp @ 7000 rpm
Torque 261 ft-lbs. @ 4400 rpm vs 269 ft-lbs. @ 5200 rpm
s*****8
发帖数: 606
12
来自主题: Automobile版 - 请教一下档位和加速的问题
纠正LZ一错误,自动变速箱变速的时候不只根据RPM.它的参照点有很多,各种sensors
都对他的换挡有影响,之前看多这个介绍,不过具体哪些对它有影响我也记不清了。。
。。这里可以举个简单的例子说明换挡不仅根据RPM:当你缓慢加速的时候,RPM在2000
的时候就升到2挡,但急加速的时候RPM可能要到4000才会升挡,可以自己试试。
从最基本的角度讲3.4档起步问题:档位的作用是通过一系列不同ratio比的齿轮组达到
输入和输出速度的不一致,假设3档的时候输入和输出速度比是1:1;1档的时候是3:1,
所以在3档的时候起步会非常慢。
t****n
发帖数: 353
13
Are you kidding me?
Ex35: 297 hp @ 6,800 rpm, 253 lb-ft @ 4,800 rpm
XC60 T6: 300 hp @ 5600 rpm, 325 lb-ft @1500 rpm
如果要比Power就不要用3.2来比
b******s
发帖数: 5365
14
看来看去,最后缩小范围到这两个,纠结,请大家指教。
都是2011 hatchback, 都是2.5L engine, front wheel drive, 车重也相似, 基本
配置也类似。觉得日车的resale value比较好,德车心理感觉好一点
2011 Mazda3 S 5dr HB Auto s Sport:
Hwy: 29 MPG
City: 21 MPG,
HP: 167 @ 6000 RPM ,Torque (lb-ft) : 168 @ 4000 RPM
MSRP:20845
consumer report: 77 out of 100
2011 Volkswagen Golf 4dr HB Auto
Hwy: 31 MPG
City: 24 MPG
HP: 170 @ 5700 RPM, Torque (lb-ft) 177 @ 4250 RPM
MSRP:19775
consumer report: 85 out of 100
t****3
发帖数: 2337
15
来自主题: Automobile版 - AUDI Q5 VS BENZ GLK350
低转速达到最大扭矩没错,但达到相同转速,2.0T时间要长些,T打开前扭矩很小。
2.0 TFSI Specs Horsepower 211 hp @ 4300 rpm Torque 258 lbs. ft. @ 1500 rpm
0-60 MPH 7.1 sec.
Fuel Estimates 20/27 MPG
3.2 FSI Specs Horsepower 270 hp @ 6500 rpm Torque 243 lbs. ft. @ 3000 rpm
0-60 MPH 6.7 sec.
Fuel Estimates 18/23 MPG
0-30加速差的就更多些,。
t****3
发帖数: 2337
16
来自主题: Automobile版 - 新款AUDI A6的新技术
AUDI打破了这个铁板钉钉的东西,更是先进了。 23,000 rpm,每小时打入2204磅空气
"The gas paths after the compressor are very short; this means that the torque is built up extremely quickly, even more dynamically than on a naturally aspirated engine of the same displacement. The 3.0 TFSI responds sportily to the throttle, with exceptional agility and bite. And it revs up to the maximum of 6,500 rpm with playful ease, achieving its rated output of 213 kW (290 hp) at just under 5,000 rpm.
The compressor of the new 3.0 TFSI is wha... 阅读全帖
s********r
发帖数: 2308
17
来自主题: Automobile版 - 关于引擎磨合--run it hard!??
新买了Touareg TDI,花了很多时间研究引擎磨合的问题。发现很多人在倡导high-rpm
磨合
http://www.ntnoa.org/enginebreakin.htm
http://www.mototuneusa.com/break_in_secrets.htm
http://www.myturbodiesel.com/1000q/engine-break-in.htm
"For those who still think that running the engine hard during break-in
falls into the category of cruel and unusual punishment, there is one more
argument for using high power loading for short periods (to avoid excessive
heat) during the break-in. The use of low power settings does not expand the
piston ... 阅读全帖
f*u
发帖数: 5576
18
来自主题: Automobile版 - 2012 x5 vs. mb ml350
r u sure you tested drive x5?
X5 should have much better acceleration than ml350.
X5
Torque: 300 ft-lbs. @ 1300 rpm
Horsepower: 300 hp @ 5800 rpm
zero to 60 mph in 6.4 seconds
ML350
Torque: 273 ft-lbs. @ 3500 rpm
Horsepower: 302 hp @ 6500 rpm
zero to 60 mph in 7.3 seconds
K*******y
发帖数: 55
19
来自主题: Automobile版 - 跳了,F150

11款的发动机改了
V6是302 hp (225 kW) @ 6500 rpm 278 lb·ft (377 N·m) @ 4000 rpm
V8是360 hp (270 kW) @ 5500 rpm 380 lb·ft (520 N·m) @ 4250 rpm
本来打算搞V8的,这么一对比,还是跳了V6
V8要贵2000刀呢
t******2
发帖数: 2265
20
两辆车,哪个启动快,哪个local省油,哪个高速省油?假设都在自动档情况下(正常
换档),不考虑省油模式。
1,
Horsepower @ RPM 248 @ 5700
Torque @ RPM 250 @ 4800
Base Curb Weight (lbs) 4483
First Gear Ratio (:1)2.70
Second Gear Ratio (:1)1.61
Third Gear Ratio (:1)1.07
Fourth Gear Ratio (:1)0.77
Fifth Gear Ratio (:1)0.61
Final Drive Axle Ratio (:1)4.31
2,
Horsepower @ RPM 283 @ 6350
Torque @ RPM 260 @ 4400
Base Curb Weight (lbs) 4595
First Gear Ratio (:1)4.13
Second Gear Ratio (:1)2.84
Third Gear Ratio (:1)2.28
Fourth Gear Ratio (:1)1.57
Fifth Gear... 阅读全帖
t*********r
发帖数: 2558
21
来自主题: Automobile版 - BMW 335i vs. Audi S6
一辆车的性能有很多方面,包括加速,制动,等等。
既然这里是发动机 vs. 发动机
那就用数据吧...
S6: 5.2L V10
Base engine size: 5.2 L
Cam type: Double overhead cam (DOHC)
Cylinders: V10
Valves: 40
Valve timing: Variable
Direct injection
Torque: 398 ft-lbs. @ 3000 rpm
Horsepower: 435 hp @ 6800 rpm
335i: 3.0 Turbocharged I-6
Base engine size: 3.0 L
Cam type: Double overhead cam (DOHC)
Cylinders: inline 6
Valves: 24
Valve timing: Variable
Direct injection
Torque: 300 ft-lbs. @ 1300 rpm
Horsepower: 300 hp @ 5800 rpm
p***s
发帖数: 584
22
来自主题: Automobile版 - M5哥是怎样泡白妞的
查了一下,E60的M5 (2006年款)
M5’s 500-bhp V-10 engine delivered, with a 4.1-sec. 0–60 sprint
最新款的保时捷:
boxster S:
315 hp @ 6,700 rpm
0-60 mph: 4.8 s
MSRP $ 60,900.00
Cayman S:
320 hp @ 7,200 rpm
0-60 mph: 4.9 s
MSRP $ 62,100.00
911 Carrera S:
400 hp @ 7,400 rpm
0-60 mph: 4.3 s
MSRP $ 96,400.00
看来M5确实够猛,4.1秒60mph,S版的保时捷全部败掉
最新款Maserati GranTurismo:
Displacement: 4.2L
Compression ratio: 11.01
Maximum power output: 405 bhp
0-60 mph acceleration: 5.2 s
GranTurismo S:
Displacement: 4691 cc
Maximum power outpu... 阅读全帖
J*****a
发帖数: 4262
23
来自主题: Automobile版 - 纪念逝去的本田
我以为9-3什么神车 你吹成这样
saab 9-3:
2.8t V6 2005–2007 227 hp@5500 rpm low pressure
2.8T V6 2005–2007 247 hp@5500 rpm high pressure
2.8T V6 2007–2008 252 hp@5500 rpm high pressure
acura tl-s:
3.2 V6 2002-2003 260 hp@6100 rpm NA
一个2.8Turbo 马力还比不过五年前本田的3.2NA 还好意思拿出来吹这么久???
h****o
发帖数: 16778
24
来自主题: Automobile版 - BMW 328i leased; Mercedes C300 traded in.
没开过前几代328/325。只好比较我自己的2010 C300和2012 328i。
简单的讲,和驾驶相关的,328i略胜一筹。
MERC 3.0:
228 hp at 6000 rpm
221 ft-lbs at 2700 rpm,
7-speed shiftable auto
AWD
BMW 2.0t:
240 hp at 5000 rpm
255 ft-lbs. at 1250 rpm
8-Speed STEPTRONIC Auto
RWD
C300,比较肉,油门行程很长,如果只踩一点车是不走的(充分体现"厚重感"),
transmission1档升2档有lag(不知道原因,网上有人反映),狠踩油门表现明显,尤其
是冷车或出弯的时候。综上,开local就别指望红灯起步了。但是高速cruising很好,
稳,静,也有力(相对而言)。转向准确。4驱抓地不错,过弯/雨天心里有谱。刹车很
好。引擎声音很一般,油耗不错,21/29。车上显示的速度和MPG都很准。总的来说,是
好车,就是起步和低速时感觉有点力有未逮。
328i有劲(相对而言),发动机输出来得更早,油门响应更快,加速线形,开l... 阅读全帖
d******e
发帖数: 7844
25
来自主题: Automobile版 - 全新Audi TT - 号称Z4杀手
TT 2.0T
Torque: 258 ft-lbs. @ 1600 rpm
Horsepower: 211 hp @ 4300 rpm
Drive type: all wheel drive
Mechanical center differential
Transmission: 6-speed automated manual
Z4 3.0T
Torque: 332 ft-lbs. @ 1500 rpm
Horsepower: 335 hp @ 5900 rpm
Drive type: rear wheel drive
Transmission: 7-speed automated manual
完全不是一个定位,顶级的Z4能买一个半顶级的TT。2.0T+AWD,TT的定位更多还是toy-
car。
n******t
发帖数: 1281
26
在网上找到的:
Chevrolet Malibu: Problems & Solutions
Built After January 16, 2004
with 4T45E Automatic Transaxles (RPO MN5) Built Between Julian Date 4016 and
4126 and

3.4L or 3.5L V6 Engine (VINs E, 8 - RPOs LA1, LX9)

This bulletin is being revised to include a repair procedure and parts
availability information.

Please discard Corporate Bulletin Number 04-07-30-021 (Section 07-
Transmission/Transaxle).

Condition
Some customers may comment on a growl or howl type noise during light to
moderat... 阅读全帖
s***s
发帖数: 855
27
最高HP处TORQUE会衰减
你看他们的最高TORQUE SPEC, 达到的速度因为引擎的设计不同, 但是峰值不会差很远.
G -
Torque 269 lb-ft @ 5,200 rpm
MDX -
Torque @ rpm lb-ft (SAE net) 270 @ 4500 rpm
Subaru -
Torque: 247 lb-ft @ 4400 rpm
j******4
发帖数: 6090
28
来自主题: Automobile版 - 车低速时踩油门有噪音
I thought you were driving a stick........
Now for AT, you can shift to N or P and then bring the engine to 2500 rpm to
check if the noise are at the same level when it was with shift at D.
What do you mean by saying "感觉不是很灵敏" ? When you step down the gas
pedal, the car 1) engine rpm increases but car speed does not increase
quickly? 2) engine rpm does not increase quickly? or 3) engine rpm
increases but with 1 second lag ?
l********l
发帖数: 9452
29
来自主题: Automobile版 - Volvo xc90的驾驶体验

own
BMW
choice.
btw你这个反黑更低端啊,v8 2010就没有再生产了,你这个review比的是v6 (230 lb
·ft @ 3900 RPM ),跟v8 (325 lb·ft @ 3900 RPM)压根就两码事。当时的mdx (
275 lb·ft @ 5000 RPM)相比之下基本就是个残废哈,就算最新的mdx(270 @ 4500
RPM)也是被秒的份哈,lol
i****x
发帖数: 17565
30
来自主题: Automobile版 - 2013 Corvette神车驾驶体验(多图)
哈哈,我都碍于面子替你藏着这贴,你还真好意思贴出来。看你写的东西,我天天都会
拉几把的红区,在你眼里是那么的遥不可及,让我想起买了皮椅安布套的wsn和我小时
候穿着新耐克鞋外面再套层塑料袋的隔壁小朋友。
"247马力是在8300 rpm下达到的,红线是9000 rpm,除非是丧心并狂不怕把车毁了是
达不到这马力的,如果爱惜车,最高肯上5000 rpm,那你能拿到的只有150马力左右。
。。"
然后又以280马力为唯一理由,宣布saab某车为纯跑车,无知和肤浅跃然纸上。我以前
经常笑话国产电脑广告,以cpu频率为唯一卖点,全然不顾综合性能,没想到这么多年
过来了还有人是如此的肤浅。你可能不知道accord v6也基本有280马力吧?
"Below is spec of saab 93 viggen. It is a real sports car that very few
people know... 280HP at 5500 rpm."
那楼剩下基本就是你泼妇骂街了。这么丢人的,你竟然频频给人贴出来,真是勇气可嘉。
i****x
发帖数: 17565
31
来自主题: Automobile版 - 2013 Corvette神车驾驶体验(多图)
哈哈,我都碍于面子替你藏着这贴,你还真好意思贴出来。看你写的东西,我天天都会
拉几把的红区,在你眼里是那么的遥不可及,让我想起买了皮椅安布套的wsn和我小时
候穿着新耐克鞋外面再套层塑料袋的隔壁小朋友。
"247马力是在8300 rpm下达到的,红线是9000 rpm,除非是丧心并狂不怕把车毁了是
达不到这马力的,如果爱惜车,最高肯上5000 rpm,那你能拿到的只有150马力左右。
。。"
然后又以280马力为唯一理由,宣布saab某车为纯跑车,无知和肤浅跃然纸上。我以前
经常笑话国产电脑广告,以cpu频率为唯一卖点,全然不顾综合性能,没想到这么多年
过来了还有人是如此的肤浅。你可能不知道accord v6也基本有280马力吧?
"Below is spec of saab 93 viggen. It is a real sports car that very few
people know... 280HP at 5500 rpm."
那楼剩下基本就是你泼妇骂街了。这么丢人的,你竟然频频给人贴出来,真是勇气可嘉。
t**********3
发帖数: 12623
32
来自主题: Automobile版 - Passat TDI 动力够么?
Passat TDI:
140 hp @ 4,000 rpm
236 ft-lbs @ 1,750 rpm
Camry:
178 hp @ 6,000 rpm
170 ft-lbs @ 4,100 rpm
q**j
发帖数: 10612
33
来自主题: Automobile版 - 谁懂赛车给讲一下
我回的太快,没看到前面的回复。别砸lz,我也是这样过来的。糊涂了很久。让我尝试
给楼主讲清楚。
假设气缸里面的空气和喷的汽油是固定的。每点燃爆炸一次,所释放的力(就是扭矩)
也是固定的。所以从气缸来看,扭矩是一定的。可是活塞可以1k rpm,也可以10k rpm,
所以功率是可以变的。小气缸要提高扭矩,就可以上大齿轮,多转几圈,用做工长度换
力气。很简单的杠杆原理。
赛车起步的时候就已经把气缸和刹车一起才,好几千rpm了。所以扭矩不重要。可是日常
开车就是 2k-3k rpm,所以低转速扭矩就重要了。
I***i
发帖数: 14557
34
http://en.wikipedia.org/wiki/Gear_ratio
Progression is the reduction or decay in the percentage drop in engine speed
in the next gear, for example after shifting from 1st to 2nd gear. Most
transmissions have some degree of progression in that the RPM drop on the 1-
2 shift is larger than the RPM drop on the 2-3 shift, which is in turn
larger than the RPM drop on the 3-4 shift. The progression may not be linear
(continuously reduced) or done in proportionate stages for various reasons,
including ... 阅读全帖
i****x
发帖数: 17565
35
另外,FYI,我帮你查了0-60和1/4 mile,你自己看吧。
2012 – Current
Elise
(Base model & CR)
0-60: 6.0 sec 1/4 mile: 14.3 sec Top Speed: 127 mph
Engine: I4 - 1.6 L DOHC 16 valve
HP: 134 hp @ 7800 rpm
Torque: 118 lb-ft @ 6800 rpm
RWD
6-Speed MT
Fuel Economy: 22/29 (est.) mpg
2013
Accord V6 AT
(3.5 L V6 models – Sedan and Coupe)
0-60: 5.8 sec 1/4 mile: 14.3 sec
Engine: V6 – 3.5 L SOHC 24 valve
HP: 278 hp @ 6200 rpm
Torque: 252 lb-ft @ 4900 rpm
FWD
6-Speed AT
Fuel Economy: 21/32 mpg
l****u
发帖数: 11
36
来自主题: Automobile版 - Yukon vs. Expedition
Looking for a full size SUV and compared Yukon / Expedition
Base Engine 6.2 L 5.4 L
Horsepower 403 hp @ 5700 rpm 310 hp @ 5100 rpm
Torque 417 ft-lbs. @ 4300 rpm 365 ft-lbs. @ 3600 rpm
Maximum towing capacity 7800 lbs. 8700 lbs.
Why Yukon has a bigger engine with less towing capacity?
Any other recommended model around the same price range (60 K) ? thanks
g********d
发帖数: 19244
37
☆─────────────────────────────────────☆
MRTWO (我爱吃薄荷糖) 于 (Sat Nov 2 19:34:57 2013, 美东) 提到:
Shelby GT500 Invites You to Lap the Ring with Her
http://www.carbuzz.com/news/2013/10/2/Shelby-GT500-Invites-You-
7:39
List of lap time:
https://en.wikipedia.org/wiki/List_of_N%C3%BCrburgring_Nordschleife_lap_
times
☆─────────────────────────────────────☆
wangshuokevn (Kevin) 于 (Sat Nov 2 20:20:37 2013, 美东) 提到:
比M3还是差不少吧
☆─────────────────────────────────────☆
MRTWO (我爱吃薄荷糖) 于 (Sat Nov 2 2... 阅读全帖
G*****h
发帖数: 33134
38
来自主题: Automobile版 - 求解惑:变速箱问题
发动机声音大就是 4 缸
声音不太大就是 6 缸
2.4-liter in-line four
175 horsepower @ 6000 rpm
169 lb.-ft. of torque @ 3750 rpm
EPA city/highway fuel economy: 19/26 (2WD, manual), , 20/28 (2WD, automatic)
, 21/27 (AWD, automatic)
3.5-liter V6
276 horsepower @ 6300 rpm
248 lb.-ft. of torque @ 5000 rpm
EPA city/highway fuel economy: 20/26
x****o
发帖数: 29677
39
来自主题: Automobile版 - 谁来给我推荐几个小钢炮?

什么秒杀?就最基本的model
258 ft-lbs. @ 2000 rpm
268 hp @ 5600 rpm
你说能秒杀
278 ft-lbs. @ 4800 rpm
323 hp @ 6800 rpm
我不信,cvt前半程是速度够快,后面camaro扭矩到最大自然吸气发力绝对不是200多马
力的cvt可以比的,当然你说赛程就1/4 mile那没什么可比的
r********9
发帖数: 10694
40
Q5:258 ft-lbs. @ 1500 rpm
GLK:273 ft-lbs. @ 3500 rpm
XC60: 258 ft-lbs. @ 1500 rpm
X3: 260 ft-lbs. @ 1450 rpm
r********9
发帖数: 10694
41
Q5:258 ft-lbs. @ 1500 rpm
GLK:273 ft-lbs. @ 3500 rpm
XC60: 258 ft-lbs. @ 1500 rpm
X3: 260 ft-lbs. @ 1450 rpm
c******m
发帖数: 437
42
你是老邢派来的吧? 别捏造了。 你把链接打开咱们用真数据说话
http://autos.msn.com/research/compare/engines.aspx?c=0&i=0&tb=0
Ford Fusion I4
MPG 34MPG
Torque (lb-ft) 270 @ 3000 RPM
Standard Engine 2.0L 231 hp I4
Horsepower 231 @ 5500 RPM
Toyota Camry V6
MPG 31MPG
Torque (lb-ft) 248 @ 4700 RPM
Standard Engine 3.5L 268 hp V6
Horsepower 268 @ 6200 RPM
Fusion的扭矩是270, Camry却只有248, 这是为什么Camry高耗油却特别肉的原因。不
过对你来说肉就肉吧。
j*****t
发帖数: 2225
43

4缸带T和6缸比?
你咋不4缸带T和4缸带T比?非要说的福特4缸牛B一样。没找到日系的带T的SEDAN,就跟
森林人比吧,都是2.0T,福特的数字好像也更低?真是眼睛都瞎了。
Engines & Power
Fusion Titanium AWD
Forester 2.0XT Premium
Standard Engine 2.0L 231 hp I4 2.0L 250 hp H4
Horsepower 231 @ 5500 RPM 250 @ 5600 RPM
Torque (lb-ft) 270 @ 3000 RPM 258 @ 2000 RPM
l*******g
发帖数: 27064
44
好吧,首先我认个错,sequoia中差是torsen的,因为之前看过的文章都说不是,去
toyota网站上看了下,确实有
http://en.wikipedia.org/wiki/Four-wheel_drive
Toyota Sequoia (North America) (only 2005-07 Models)
但是有托森四驱去能力就最强?你就别在那yy了
sequoia有托森有中差锁没错,但是其前后差速器都是开放的,靠abs刹车来模拟前后差
速锁调节动力,考虑到丰田一贯的夸大宣传,例如爬坡王就是类似的系统,但是实际测
试几乎形同虚设(爬坡王过驼峰路过不去,一个轮子打滑就趴窝了,只能靠冲),所以
我对sequoia上这个刹车模拟前后差速锁系统报怀疑态度,估计丫的就是一前后全开系统
至于expedition,整个系统和sequoia差不多,只不过用的多片离合进行限滑这个确实
不如sequoia,但是中差也是带机械锁的,而且expedition用的这个伯格瓦纳四驱系统
,号称是能够把100%torque任意分配到任意一个轮子的,在这方面绝对要比sequoia强
,所以二者有长有短,整... 阅读全帖
f*******l
发帖数: 964
45
来自主题: Automobile版 - 今天早上路怒了,我错了
哦。
Cruze 的1.4T 发动机 103 kW (138 hp) at 4900 rpm 200 N·m (150 lb·ft) at
1850 or 2500 rpm
那一代凯美瑞早年间是用的 2AZ-FE 发动机:157 to 160 hp (117 to 119 kW) at
5600 rpm with 162 lb·ft (220 N·m) of torque at 4000 rpm.
后来是用的 2AR-FE 发动机:171 PS (126 kW; 169 hp)@6000, 226 N·m (167 lbf·
ft)@4100
这么看来,凯美瑞用的发动机确实要更高的转速才能达到最大输出。
B********4
发帖数: 7156
46
来自主题: Automobile版 - 马力跟马力不一样?
从你的网站上查到悍马引擎有多种,其中6.5升V8是:
http://en.wikipedia.org/wiki/Detroit_Diesel_V8_engine
Power / Torque (lowest): 155 hp (116 kW) @ 3,600 rpm / 340 lb·ft (461 N·m)
@ 1,700 rpm (naturally aspirated)
Power / Torque (highest): 215 hp (160 kW) @ 3,200 rpm / 440 lb·ft (597 N·m
) @ 1,800 rpm (turbocharged)[1]
不带涡轮的才155马力。
q**d
发帖数: 1470
47
来自主题: Automobile版 - 2015 MB GLA250 新车报价 + 图
2014 IS刚出的时候, IS的前脸是Lexus家族中最新潮、最Aggressive的,很多丰田粉争
先恐后地付MSRP给滴乐要买这车。
但时至今日,2015 Lexus RC 的 spindle grille 已经全面超越了毫无变化的2015 IS
的spindle grille。就连2015的烤肉拉都有了类似的前脸。
IS250 这车外表很sporty, 实则又慢又肉, 0~60需要整整8.3秒。ClubLexus上的3rd
Gen IS 版面经常有IS250车主抱怨车子太慢、整天被18轮超车。
下面我们来把IS250和GLA250做个简单的比较:
1.性能:
[2015 IS 250 AWD F SPORT]:
0-60 MPH Acceleration: 8.3 seconds
Torque at RPM : 185 @ 4,800
Horsepower at RPM :204 @ 6400
[2015 GLA 250 4MATIC ]
0-60 MPH Acceleration: 7.1 seconds
Torque at RPM : 258 @ 1250
Horsepo... 阅读全帖
M******e
发帖数: 4179
48
"感觉就是重,油门要踩下去不少车才慢慢起步",是不是也可以解释为动力不足呢?
从Edmunds参数来看,Jetta(S)的车重略大,扭矩和马力却更小:
2014 Elantra (1.8 L):
TORQUE 130 ft-lbs. @ 4700 rpm
HORSEPOWER 145 hp @ 6500 rpm
CURB WEIGHT 2818 lbs.
2014 Jetta (2.0 L):
TORQUE 125 ft-lbs. @ 4000 rpm
HORSEPOWER 115 hp @ 5200 rpm
CURB WEIGHT 2881 lbs.

Escalade
f**e
发帖数: 890
49
来自主题: Automobile版 - 没人讨论新款奥迪Q7
curb weight 差了1000磅,怎么叫差不多?
Q7: CURB WEIGHT 5192 lbs, TORQUE 295 ft-lbs. @ 2150 rpm, 280 hp @ 4920 rpm,
TRANSMISSION 8-speed shiftable automatic
MDX: CURB WEIGHT 4255 lbs, TORQUE 267 ft-lbs. @ 4500 rpm, 290 hp @ 6200
rpm, TRANSMISSION 6-speed shiftable automatic
Q7, MDX完全不是一个档次的车,比什么比?
D***0
发帖数: 5214
50
来自主题: Automobile版 - 【试驾 XC90】发动机声音确实心寒
http://forums.swedespeed.com/showthread.php?229457-What-a-disap
见234楼
Here's an engine rpm calculator http://www.crawlpedia.com/rpm_gear_calculator.htm and the gear ratios of the XC90 T6:
1 5.250
2 3.029
3 1.950
4 1.457
5 1.221
6 1.000
7 0.809
8 0.673
Final 3.329 (Axle ratio)
Engine rpm is under 1700 in 8th gear at 65 mph on 29-inch diameter rubber.
The old XC90 V8 turns at ~2500 rpm in top gear (6th) under the same
circumstances - same as the 4-cyl in 6th gear - while... 阅读全帖
首页 上页 1 2 3 4 5 6 7 8 9 10 下页 末页 (共10页)