roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
How Fast ? correction
TR 7 roadster, driven by Craig Leinicke, runs approx 119 mph with 108 rwhp., at the Maxton mile. Therefore, to double speed should require hp squared = 8x 108hp, or 864hp.. Got game ? roverman.
Edited 1 time(s). Last edit at 06/28/2012 01:43PM by roverman. |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: How Fast ? Plenty.
David and clan, the "logical choice", is RV8. With heads and other required parts, available now for the Rover, keeping the car on the ground, should prove to be more of a problem. Cheers, roverman.
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Dan Jones Dan Jones St. Louis, Missouri (280 posts) Registered: 07/21/2008 03:32PM Main British Car: 1980 Triumph TR8 3.5L Rover V8 |
Re: How Fast ? correction
> TR 7 roadster, driven by Craig Leinicke, runs approx 119 mph with 108 rwhp.,
> at the Maxton mile. Therefore, to double speed should require hp squared = 8x > 108hp, or 864hp.. Got game ? roverman. You're getting your calculations mixed up a bit. Squaring = 4x. Cubing = 8x. While aerodynamic drag is proportional to the square of velocity, the power required to overcome it is proportional to the cube of velocity. Using the simplifying assumption that all the drag is aerodynamic, if we assume 108 RWHP gives a 118 MPH top speed (optimally geared), it should take 526 RWHP to go 200 MPH for the same vehicle. This is a terminal velocity calculation and ignores any time to accelerate. 864 RWHP will get you 238 MPH. Dan Jones |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: How Fast ? correction
Thanks for the math. Good news is, "Mojave Air Strip" also has 1.5 mile runs,(12,000 ft. long run area). Top speed so far is approx 235 mph. The big question is, can this happen with a 4bbl RV8, all motor, with race gas or maybe E98 ? The Quest, roverman.
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Preform Resources Dave Craddock Redford,Michigan (359 posts) Registered: 12/20/2008 05:46PM Main British Car: 72 MGB V6 3.4 |
Re: How Fast ? correction
Art, Mojave Air Strip, you mean Muroc sorry,I mean Edwards can be used again ?
Dave |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: How Fast ? correction
I'm sure it's military, so Edwards ? Mojave Speed Challenge, or such has a webbsite. They've had two events, so far. Cheers, roverman.
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