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Stranger on the Internet
Join Date: Apr 2004
Location: Bradenton, FL
Posts: 3,244
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Quote:
The batteries are dead in my HP calculator, but I have another one at work. I believe you get your choice of chocolate chip or oatmeal raisin. Pat
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Patrick E. Keefe 78 SC |
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03-01-2005, 06:31 PM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,054
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Thanks!
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
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03-01-2005, 09:08 PM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,054
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Oops, sorry, chocolate chip.
PS I'm taking a class this semester called aerodynamics. It's a pretty basic course that is actually part of a flight training program, but it sounded interesting to me. I've learned a lot of interesting stuff. For instance, the question about driving in rain earlier. I believe Randy about rain making it worse to drive through, but.... I've learned that humid air is actually less dense than dry air because the water vapor is lighter than air and displaced air, so it's like being at a higher altitude or in hotter weather.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa SOLD 2004 - gone but not forgotten
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03-01-2005, 09:12 PM
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Registered
Join Date: Aug 2003
Location: Flemington, NJ
Posts: 757
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Porsche offered a turbo-bodied version of the Carrera in the late 80's. It had the running gear of the Carrera but the bodywork of the turbo. I don't know the cD difference between the two, but I do recall the top speed on the turbo-bodied version was supposedly 12mph lower then the standard Carrera body. Does anyone else remember reading this fact? I'll see if I can dig up my resource...
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Rob Fusi 77 911S | 3.6 Varioram | Triad Muffler | B&B 9400 Cooler |WEVO everything | Big Reds | 23/33 | 22/22 sways | Polybronze | RSR shocks/struts | FM10s | GTC Motorsports Last edited by MuffinMan; 03-02-2005 at 05:06 AM.. |
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03-02-2005, 05:04 AM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,054
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I hadn't heard what the difference was, but it is true that the turbo has a larger frontal area and possibly a worse Cd which makes it harder to go faster. That's why the Ruf Yellowbird used the regular Carrera body instead of the turbo body. If the flag mirrors reduce top speed by 5 mph, I can see how that fat booty from the turbo could do 12.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa SOLD 2004 - gone but not forgotten
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03-02-2005, 09:29 AM
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Registered
Join Date: Nov 2004
Location: Greater Metropolitan Nimrod, Oregun
Posts: 10,040
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Steve - post any good diagrams from your lectures.
Enjoy the course.
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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03-02-2005, 10:57 AM
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Registered
Join Date: Jun 2001
Location: Sweden
Posts: 5,911
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CD * frontal area = drag force
(drag) force per second = HP You cannot calculate max speed or drag force without knowing frontal area. A jumbo jet has lower CD than your car but much higher drag force. Also, you cannot calculate max speed without knowing gearing either, unless you have CVT. I can embellish this with actuall formulas later, but you get the point: 1 Watt = 1 Joule per second 1 Joule = 1 Newton per meter 1kW = 1000W = 1.36 HP
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Thank you for your time, Last edited by beepbeep; 03-02-2005 at 11:10 AM.. |
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03-02-2005, 11:05 AM
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Registered
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Quote:
Can you send me to it? |
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06-20-2005, 09:17 AM
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Friends of Warren
Join Date: Feb 2004
Location: Surrey, UK
Posts: 3,133
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me too...
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06-20-2005, 09:28 AM
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