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Old 02-12-2008, 08:15 AM
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hightower99 hightower99 is offline
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Quote:
Originally Posted by Matra et Alpine View Post
For example .... Ducati Twin ( and the Honda SP-1 ) out accelerated their competition on the track despite being "equivalent power". Would perhaps allow you some insight into other possibilities existing beyond the bookwork.
That has more to do with there ability to smoothly power on through corners allowing the drivers to basically achieve longer "straights" (They could start accelerating sooner and therefore had the advantage going down the straights). It also has to do with the actual power curve the engines made. Whereas they could have "equivalent power" that is only taking peak power under consideration, they probably make more average power over the range used during in gear acceleration (i.e. if you redline at 10000RPM and drop down to 8500RPM when you shift up then the "in gear" rev range is from 8500RPM-10000RPM for the gear you changed up to [assuming you stay in it to redline]) . The point being that they could either apply the power for a longer period of time, or they had more average power.

This does not get close to explaining how a <95HP engined trike is capable of out accelerating a 220HP engined trike, in a straight line, from a standing start, with the <95HP engined trike only needing 25% throttle!

I think they are just being wowed by the large amount of torque at low revs which gives a bigger initial kick in the pants, but that doesn't mean that it will actually accelerate faster.

I just thought about something:

What transmission ratios are they using with the revetec powered trike (in relation to the 220HP trike)?

If they are using the same ratios then the revetec should be at a serious disadvantage when it comes to in gear speed and top speed (as it only goes up to 3000RPM). I would bet that if they actually timed any sort of acceleration runs they would find that the revetec is significantly slower because it would have to change up more often.
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