Originally Posted by
bkspeedo
When a JTG track on older carpet starts to get hot > 70 deg and has a lot of compound worked into it, it starts to get gummy and clogs up the higher rubber content foam tires like CRC Mag and Pinks.
This issue won't be as bad on new carpet which is why at most big races it's not an issue. If anyone has gone to IIC i believe this is why Scotty keeps the room cool.
Switch over to CRC Gray or Black front's and yellow or gray rears, you should be good. Gray\yellow do wear fast but that's the price we pay to be fast.
Cleaning the track will definitely help the problem for awhile. If the carpet gets run on a lot with foam tire cars it will start to happen again in about 4-5 weeks. Our local track cleans the carpet every 8 weeks, which is a blessing that they take the time to do this as during the summer it makes for a much better racing surface.
This is exactly our issue, though only us 12th scale mod guys really notice it.
And those are the tires that work best for us now too.
Not as fast as Magenta or pink in the first few minutes, but much more stable for 8 mins.
Our CRC rug has about 18 months of racing now.
Last week it was 96 deg ambient, but I'm sure it gets much hotter on the days they are closed with no air circulation.