Wuffles":wlpob34g said:
Just to clarify, you mean increased downforce for acceleration right? I think that's what you're getting at but it read funny to me.
You don't need it for top end particularly, well, obviously you do, but not any more than is there now. Hitting 180mph+ on a road bike with a standard fairing is no problem* but it's the getting there in the lower gear(s) that needs more time than the engine requires.
*Spain for example, where the police will egg you on to do it - as everyone knows a Spaniard is born to the sound of a rev limiter being bounced about on a super bike.
Sorry - tying to type on a tablet, before coffee! Now at my desk...
I meant both, in different ways. As you say, accelerating you can't get the power down as well on a bike as with a car (showed up in the drag race), and on a track there was enough additional downforce and grip for the car to be a lot faster in the corners (even slow corners). In the slalom, the F1 car was below the speed where the aerodynamics contributed anything useful, and Guy could weave much more effectively. I'm assuming there's no easy way to add cornering downforce to with a racing bike, for all sorts of reasons.
It's a pretty poor comparison, I know, but I've got a classic R80RT. You may remember BMW made a big fuss when the shape was launched, about the thing having been extensively wind tunnel tested. I'm pretty certain it's intended to create downforce to help stabilize the front end. In a straight line that's fine - it works after a fashion, but in any sort of crosswind, the thing can be truly terrifying. I've taken it across the old Severn bridge a few times, on normal summer days, with windspeeds well below what they consider 'danger' levels. Frankly it's really frightening. You get oscillations and everything. At any speed above 60, the wind is effectively coming at a 20-30 deg. angle, and all the aerodynamics go nasty.
Do you remember those horrible squared-off back tyres you used to be able to get? Back in the 1970s I had a CB175 that came to me with one fitted. Going up on the corner of the tyre was frankly scary (think of the roads round your way, where I grew up!). I put Avons on it and it improved hugely. My point, only that the square tyre used to exaggerate the effect of losing grip in corners. I've never ridden a bike anywhere near the edge of its performance really, but I have come off on corners and I can see how suddenly cornering can change from being fast to not happening.
FWIW, Toto Wolff was interviewed briefly on Tuesday - he was at the Supersport race, I think. He was evidently staggered at the skill and bravery on show. I like F1, but there's no contest when it comes to sheer courage and skill.
E.