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2020 ST/TT Car Classification Rules Revisions Proposed


Greg G.

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  • 1 month later...

Greg, I know I must be missing something, but the current tire size rule for TT4 ( 6.5.2) give points for DOT and non DOT sizes ( +.6/.3) ,however when I use the class calculator for TT4 it provides points only for DOT tires. Based on the calculator I have “lost” points all season for my non DOT take offs. If I am correct , I assume this will be fixed in the 2020 calculator.

Edited by twt
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9 hours ago, twt said:

Greg, I know I must be missing something, but the current tire size rule for TT4 ( 6.5.2) give points for DOT and non DOT sizes ( +.6/.3) ,however when I use the class calculator for TT4 it provides points only for DOT tires. Based on the calculator I have “lost” points all season for my non DOT take offs. If I am correct , I assume this will be fixed in the 2020 calculator.

You might want to check Sec. 6.4.1 of the rules.

6.4.1 ST4 Tire Limitations
1) Compound
 Non-DOT approved tires are not permitted in ST4.

The calculator is correct as non-dot tires are not allowed in ST4.

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