K`Tetch wrote: || On Fri, 18 Feb 2005 13:49:55 GMT, "Travis Jordan" || wrote: || ||| K`Tetch wrote: |||| Efficiency is a big drawback for automatics of the standard type |||| (typically wasting 10-15% of theine power) its not alone in being a |||| major drawback. ||| ||| Where did you get those numbers? My information is that the ||| difference is more like 5% nowadays. |||
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|| || These activist sites are never the best source of unequivcal data. || That should be obvious. || || You want to see the difference, take two cars with the same engine, || different transmissions, and dyno them, see how much difference there || is on the wheels. Go through machinging handbooks, work out the || efficiencies of the various gears listed. It'll show you that figure. || ||| |||| How many racecars use automatic gearboxes? erm, none. Why? again, |||| SAFETY and CONTROL. They don't want cars changing gears on a road |||| which the car can't see (remember a gearchange takes place whent he |||| car is moving, typically 1-3 seconds, and at higher speeds, thats a |||| lot of ground covered. ||| ||| There have been a number of races won by vehicles with partially or ||| completely automatic transmissions, starting with Jim Hall's ||| Chapparal win at Sebring in 1965 (I should know, I was there). The ||| reason that most race cars use totally manual transmissions is to ||| make the driver's shifting ability an important part of the ||| competition. In fact, Forumula One rules now OUTLAW totally ||| automatic transmissions. Guess why? || || they also outlawed turbochargers, superchargers, and many other || things. They outlawed a car with 6 wheels. Many of the automatics || tried were CVT type automatics, not the planetary gearbox type you're || talking about. Many also had problems with creeping at starts. All || told there was many reasons for the banning on fully automatic || gearboxes. A lot of these rules are made for safety reasosn, so MAYBE || it was for safety reasosn that automatic transmissions were banned. || that,and to promote semi-automatics, since its hard to fit a real || manual shift ssytem inside an F1 car. || ||| ||| The rationales for installation of manual tranmissions nowadays are ||| lower price, followed by driver preference. Eventually, these will ||| both go the way of hand-cranked starters and manual windows. || || completely different. I've had a lot of problems with power windows. || I've hand-cranked, push-started and even roll-started a car in || reverese. I'd have been screwed with an automatic.
You are an asshole with an attitude...a real s***ty attitude.