S2000 and ST4/TT4
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Joined: Jul 2014
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From: Fort Walton Beach, FL
Originally Posted by 03threefiftyz' timestamp='1465044735' post='23984619
I would like to see TT3 go back to 9:1 and have TT4 at 10.5. Anything lower than 10.5 and I'll keep slogging along in TT3. I don't really want to go much slower than I am now...
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Joined: Jul 2002
Posts: 2,724
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From: Orlando
Originally Posted by Mrsideways' timestamp='1465035697' post='23984579
[quote name='DTP525' timestamp='1464994166' post='23984305']
You MINUS .7 for non dot slicks, so for example if your raw ratio is 12.0, your new ratio is now 11.3 which means you're out of TT4 now.
You PLUS .7 for dot tires, so for example if your raw ratio is 12.0, your new ratio is now 12.7 which means you can either add more power or lose more weight.
This statement is assuming you're going to run a 245mm tire also.
*The penalty for running a non dot tire may have changed or will change though because there isn't many non dot slicks that are faster than a Hoosier A7 currently.
You MINUS .7 for non dot slicks, so for example if your raw ratio is 12.0, your new ratio is now 11.3 which means you're out of TT4 now.
You PLUS .7 for dot tires, so for example if your raw ratio is 12.0, your new ratio is now 12.7 which means you can either add more power or lose more weight.
This statement is assuming you're going to run a 245mm tire also.
*The penalty for running a non dot tire may have changed or will change though because there isn't many non dot slicks that are faster than a Hoosier A7 currently.
[/quote]
I saw and realized that later. Ok makes sense now.
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Joined: Jul 2002
Posts: 2,724
Likes: 42
From: Orlando
Thread Starter
Joined: Jul 2002
Posts: 2,724
Likes: 42
From: Orlando
Joined: Aug 2011
Posts: 4,220
Likes: 81
From: Florida
Originally Posted by No.Division' timestamp='1465224989' post='23986063
Using the current spreadsheet for TT# classes and adding TT4 12.0... I don't have a clue how to get to the weight I will be allowed.