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mcromo

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Everything posted by mcromo

  1. Do you mean the rear sides as compared to the centre contact patch ?
  2. We recommend warmers to be set about 158 deg F, (70c). http://www.dunloprac...com/Warmers.pdf As for your question about temperature and time, it would be very nice if I could give you a nice neat answer and put it all in a perfect uniform exact procedure, but this is not possible with all the factors involved. You need to take into consideration all the factors; ambient temperature, track temperature, wind, how long off the track, how slow the last lap was, your lap times, and others. These things need be taken into consideration. To benchmark your situation you need to ask yourself how much grip do you need (or are likely to need), compared to how hot you got the tire in the last session, how long its been off the track, wind, and other factors above, then make your adjustments accordingly. (adjustments = how you are going to put heat back in the tire, via easy laps or tire warmers) Don't think that 158 def F is OK, while 157 deg F is not OK and you will immediately fall down. This is not the case. Tire temperature is on gray scale, sliding from more white to more black. It's not like a light switch, on or off. It's more like a dimmer switch, that transitions from dark to full bright. Slower riders will never see the highest temperature of the tire because they are going slower. And in turn they will never NEED the highest temperature because they are not going fast enough to need it. This flows hand in hand. The faster you ride, the more you will need higher temps. The important thing is to not try to fit this all into a neat little box of yes or no, on or off, white or black. You need to use your judgment, observation and feel for what is going on. I cannot give you an exact answer of "how long do you think the tires would hold the heat", simply because there are too many variables. My best advice is to pay attention to the conditions and draw on your experience. If it was a 70 deg day and you came off the track for 10 min, would you go at race pace into the first turn, or give it a couple of turns? What about 11 min, 12 min, 13 min? Look at this issue from that point of view. I have observed top riders leave the pits on cold tires and be 25 sec off the pace on the out lap, and 15 sec off the pace on the second flying lap. Don't try this at home, But it is possible. It is great to see such highly qualified info being made available. I'll be following this Forum, that is for sure! I'm a mere intermediate level half century aged track day rider on a Honda 919. I do not want to bin my bike. I have managed over 1000 miles of track day mileage with no getoffs so far. I am absolutely fiendish about warming up the tires. I often start at the back, go easy on lap 1, speed up some for the second, start dialling it up on the third, and find by the end of the 4th lap the tires seem to be as grippy as I can get them. I notice a big difference from cold pavement cold air days to hot pavement sunny hot air days. Less grip = slower pace, the laws of physics being what they are. I'm amazed at how many intermediates have getoffs in the first few laps, especially on cold days. I happen to be on Michelin 2CTs. Picking up from one of the other threads, I'll also note that I observed a huge change in rear tire pattern wear as I was sorting out my rear suspension set up. I have a Penske on it. Absolutely amazing, as the rear got close, the tire suddenly looked better. I had some major gremlins to chase away.
  3. I have no idea how the site paints me as a Squid and rest assured I am not.

    I'm 56 years old as of 2010

  4. I am budgeting to be able to do a 2 day CSB School next year. I've narrowed it down to a Las Vegas Classic Course or Miller. I'm leaning towards Miller. Which Miller course is used for the 2 days schools ? East or West, noting I doubt it would be the Perimeter course. Can you wear your own gear for the 2 day schools ? I don't mind riding someone else's bike for a school, but I sure would like to be in my own leathers, helmet, boots, gloves, chest/back protector than someone else's. More for the familiarity than anything else, although helmet fit is a major point for me. If you can wear your own gear, are there specifications that have to be met in order to be allowed to wear it at the school ? I have good stuff, although my Shoei RF900, while only 5 years old to me out of the box, is a Snell M2000 vintage design. (It fits my head, stays out of the sun when I'm not riding and we don't have an ozone problem here. I don't want to replace it yet ! ) Please advise, Sandy Sutherland in Calgary Alberta Canada
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