Copyright (c) 2008 ExpressionEngine tag:speedtv.com,2008:11:27 tag:speedtv.com,2008:forums/viewthread/.357531 2008-11-12T20:30:30Z indcoltz tag:speedtv.com,2008:forums/viewthread/.356991 2008-11-11T14:52:24Z webrill My question applies the 3 wheeler. If the vehicles center of gravity is lower than the roll center wouldn't it try to go under the axles rather than over them? Wouldn't it load the inside wheel in a turn without unloading the outside wheel? Wouldn't it pull down in front rather than pushing up both in acceleration and braking?
Because I'm not a mechanical engineer I won't be designing or building the thing and I figure to pay for the heavy lifting would cost me way more than I could afford. I expect I won't build it again this winter. I was just wondering... ]]> tag:speedtv.com,2008:forums/viewthread/.354681 2008-11-05T14:18:24Z smack

I know not many here are into MC dragracing, but the mechanical-porn aspect alone is worth a look.

Suzuki had dominated the ProStockMotorcycle class for decades in NHRA competition, using the old GS 1100 as a base. The class became a stale and tired Suzuki-fest 'til NHRA politics permitted H-D a clean-sheet billet engine that now dominates (along with the billet S&S;/GBR "Buell").

Recent rules relaxation will see the above 'Busa-based (bore-centers, at least) engine in NHRA competition next year. It's a joint effort of Don Scumacher Racing, Suzuki and McLaren Engineering. Displacing 1625cc, it's an all-billet, 4-valve I-4.

More pics of this beauty here:
http://www.dragbike.com/dbnews/anmviewer.asp?a=4477&z=18 ]]> tag:speedtv.com,2008:forums/viewthread/.301692 2008-08-13T10:23:46Z davwannaride ]]> tag:speedtv.com,2008:forums/viewthread/.246343 2008-05-28T05:24:19Z heritage32
During the recent airing of the Le Mans GP there was a graphic showing the angle of lean of Danny Pedrosa which appeared to peak at 61 degrees which is very close to the 58 degrees that I have been preaching about for a number of years. Does anyone know whether this is the angle of the bike to the vertical (which I suspect it may be) or the angle of the CofG of the bike/rider combination to the vertical.

If it is the latter then he is pulling in excess of the 1.8 G which the angle of 61 deg would suggest.

For those of you who may, of recent times, have missed me on these boards (Zoot, Rolfo, etc!!!) I would mention that I am not having an easy time reading the posts as printed in white on grey. I had a serious eye problem manifest itself about 18 months ago where I was losing my vision at a rate where I would probably have been unable to read within 6 months or so. Fortunately for me I discovered Dr. Rosenfeld at the Bascom Palmer Eye Institute and after a number of injections into the eye I am back to 20/20. I do however somewhat lack contrast, hence my problems with white on grey. It does seem to be improving though which is why I am back (collective groans!) ]]> tag:speedtv.com,2008:forums/viewthread/.333611 2008-09-30T19:13:17Z throttler22 tag:speedtv.com,2008:forums/viewthread/.255933 2008-06-10T08:15:14Z RocketSled
Is it the slipper clutch that allows this transfer from 6th to 2nd w/o the hop? I have an 05' Gsxr, and I believe that it was 06' that they came with this set-up? I must be on the ball when I go into a braking situation and downshifting. Guess it's time for an upgrade! A tech explanation would be appreciated. Watching Rossi and Mladin, etc "back em' in" is exciting to watch and I can't wait til Indy!

Thanks! ]]> tag:speedtv.com,2008:forums/viewthread/.266902 2008-06-25T10:48:23Z dklmstokes tag:speedtv.com,2008:forums/viewthread/.289183 2008-07-25T15:58:39Z sin2rhyme
Many years ago, probably 10 (!), I remember having read a couple of articles (or a few) published in print that said that in GP500 racing there were bikes either equipped with traction control that actually braked the rear wheel to keep it from lifting during heavy front wheel braking in order to retain overall traction, or that such a system was being tested. I have no clue where I might have read it. Anyone here remember such an article or a similar buzz happening around that time?

Also, the same article or another one, talked about how a TC system was being tested that was meant to actually prevent vicious highsides. Though I don't remember whether it mentioned how that was being hoped to be accomplished, due to an argument happening elsewhere I had been thinking about it for a few hours. How could TC braking theoretically mitigate a highside?

Anyone here remember reading those articles or similar, written earlier or now? Any info would be greatly appreciated! Thanks in advance.

s2r ]]> tag:speedtv.com,2008:forums/viewthread/.253973 2008-06-08T11:07:19Z 2008-06-08T19:35:55Z RICKEDMONDS