I promise I wasn't having a 'go' at you! It's just, in the over 50 years karting, I have heard this sort of thing..... just few times. You are NO WORSE than 95% of other karters.
I fully understand that different wheels DO make a difference: what I object to is when people claim the effect to be one thing or another (e.g., differential heating and dissipation rates) when it could be SO many other things and nobody has done the checks to KNOW which it is!
The problem is that, if you 'calculate' that you need (let's guess) cooler rims in summer, then you will go and buy what you believe may be even COOLER rims for a hot weekend only to discover that it never was the heating effects but may well have been caused by your 'mid heat' rims being stiffer or more flexible. God knows how your 'super-cool' rims will flex.....
No matter what I think, all that matters is TESTING! If your tests show that rim X works better for you than rim Y in hot weekends, then you are almost certainly CORRECT regardless of what I say. I am just asking you to take the 'paddock gossip' about the 'causes' with a HUGE pinch of salt. Ask those same questions about ALL the paddock gossip: HOW is XYZ change supposed to work? If you get the same answer from everybody you ask, it MAY be true, if you get a DIFFERENT answer from each person, it's probably WRONG!
Look at all the things you believe to be true and ask if they make sense. Start with the concept of 'release'...... how DOES that work when you DON'T have a differential and you don't have enough power to 'spin' the wheels. If you look closely at this thing, not ONE of the answers given makes even the SLIGHTEST sense!
Ian
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