To be more specific:

Dry – the new Hoosiers
Intermediate – unshaved Toyo RA1s
Rain – Hoosier Dirt Stockers

In what stages of rain should the various above tires be used? I realize that if the track is currently wet and it is not raining, it makes most sense to use the Dry tires because after a few laps the track will dry up. But when do you move to the Intermediate tires instead of using dry tires? If the track is wet and it is still raining lightly but not pouring? I understand this decision comes with experience and of course some luck predicting what the weather will do never hurts.

Right now I don’t have true rain tires (the Dirt Stockers) but have the Toyos just in case, but next year who knows. If a person also has Dirt Stockers, when do they typically use them versus the Intermediates? Only if it is pouring?

For IT cars, how much does the car itself impact this decision (fwd versus rwd, weight of the car, ect.)?


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Dave Gran
NER #13 ITA
'87 Honda Prelude