Originally posted by speedoo
I live in Thailand and a member if the Chiangmai model raceway club. We have an asphalt track and we all use composit foam tires made by GRP consisting of 40 and 42 compound. Most of us have HPI RS4 Racer 2 nitro cars. The problem is we go through tires every 20 minutes of racing. The foam tires do work the best but we use up to 6 sets of rear and 2 sets of front tires every race. This can get expensive plus we have to change tires when we refuel. The track temperature here can reach well over 100 degrees f. The foam tires are the best to use on our track and are used by racers throughout Thailand. My question is does anyone know of a composit foam tire that can last longer in this heat.
In Malaysia, we run 42 rear and 45 fronts and wear rate is pretty reasonable. UFRA tires which is also by GRP. The rears wear off about 2 to 3 mm after 2 to 3 hours of intermittent play (play 7 minutes, rest 5 minutes). I can't find rear foams that are 45 shore yet.
I believe the climate here in Malaysia is hotter than Chiangmai. Our ambient climate is already about the same as your track temperature
Is the track treated? Our track here is somewhat "smooth" untreated asphalt. Could be that the track is rough asphalt type that is not so condusive to foams... Just a guess.