| Flieger |
12-23-2011 10:00 AM |
Quote:
Originally Posted by vas930
(Post 6450050)
Nite, Max.
As an ME, can you work out how much HP I have without a dyno run?
If so what info do you need?
Tyre size?
Speed in gear?
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I could do some calcs with an acceleration in gear from one speed to another and the weight of your car but it would would not be very accurate due to necessary assumptions such as constant acceleration. Even then, it would only be the power to the wheels minus the power being consumed by air resistance and rolling resistance. It would be affected by tire size and gearing as well as the inertia of the rotating parts. If I had every spec on your car I could get a pretty accurate value for horsepower at the crankshaft but it would take a little time to do that.
If you had a G meter it would be a little more accurate but still would only yield the net power. Then again, that is all that matters.
If you did a very short acceleration run with the first method it would be more accurate, but you would need to have a very accurate speedometer (GPS) and a timer that was set to record the time between speeds automatically to reduce the reading error with the process of reading an analog speedo and a clock at the same time while driving.
Quote:
Originally Posted by slodave
(Post 6450105)
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I think even Ariel can correctly identify those parts, and she doesn't even remember which way to spin the wheel to trim the nose up!:eek:
Quote:
Originally Posted by Rick V
(Post 6450166)
You forgot Virginia
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Oh f***. You're right. :eek: But despite that, it looks like the world will not end in 2011. How bad can 2012 be?;)
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