Autocross FAQ - Page 3 - Mazda3 Forums : The #1 Mazda 3 Forum
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post #21 of 134 (permalink) Old 05-16-2008, 11:49 AM
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Re: Autocross FAQ

Didn't see them mentioned in the rule book, maybe i will run them and see if i pass tech, i was also wondering if cat back exhausts are allowed? the only mention of exhaust i see (in the scca rulebook and my regional rulebook) is street legal headers.
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post #22 of 134 (permalink) Old 05-16-2008, 12:20 PM Thread Starter
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Re: Autocross FAQ

[quote author=ericbertrand716238 link=topic=87808.msg2319673#msg2319673 date=1210952942]
Didn't see them mentioned in the rule book, maybe i will run them and see if i pass tech, i was also wondering if cat back exhausts are allowed? the only mention of exhaust i see (in the scca rulebook and my regional rulebook) is street legal headers.
[/quote]

As a general rule, if it does not say that you can, then you can't. One thing to keep in mind is that almost all of the rules build off of Stock, meaning, if it is legal in stock, it is legal in the higher prep classes.

Because cat-back is allowed in Stock Class, it is allowed in STS as well.


2008 New England Region SCCA HS Class Champion
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92HS - 2007 Mazda 3s Sport Sedan -2006 Miata Wheel, 16x6.5, 15lb w/ Hoosier A6 245/45R16 (f) and 225/50R16 (r) MS Accessory Sport Shocks
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post #23 of 134 (permalink) Old 05-19-2008, 02:41 PM
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Re: Autocross FAQ

so in order for me to compete in STS instead of STX I would need to go back to stock width tires right? I believe my rx8 wheels are 8" wide and that puts me in STX....

If anyone could check my mods (found in the link in my sig) and verify that if I went back to stock wheels, I could compete in the STS class. Thanks!


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post #24 of 134 (permalink) Old 05-19-2008, 02:48 PM
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Re: Autocross FAQ

[quote author=cromus link=topic=87808.msg2325850#msg2325850 date=1211222472]
so in order for me to compete in STS instead of STX I would need to go back to stock width tires right? I believe my rx8 wheels are 8" wide and that puts me in STX....

If anyone could check my mods (found in the link in my sig) and verify that if I went back to stock wheels, I could compete in the STS class. Thanks!
[/quote]

Yes, but you should get some 7.5' wide wheels for STS.


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post #25 of 134 (permalink) Old 05-19-2008, 02:51 PM
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Re: Autocross FAQ

thanks!


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post #26 of 134 (permalink) Old 05-24-2008, 10:51 AM
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Re: Autocross FAQ

quick question, how do they calculate the final time?


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post #27 of 134 (permalink) Old 05-24-2008, 11:32 AM
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Re: Autocross FAQ

[quote author=astrob0y link=topic=87808.msg2338961#msg2338961 date=1211640675]
quick question, how do they calculate the final time?
[/quote]

They use timing lights. Ths time starts when you trip the lights at the start and stops when you trip the lights at the finish.

Unless it's a ProSolo, in which case the lights start when the tree goes green.
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post #28 of 134 (permalink) Old 05-24-2008, 11:42 AM Thread Starter
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Re: Autocross FAQ

[quote author=astrob0y link=topic=87808.msg2338961#msg2338961 date=1211640675]
quick question, how do they calculate the final time?
[/quote]

In autocross the timer starts and stops when you trip the start and finish light beam. Typically, the accuracy is down to .001 seconds.

Usually, the winner of a class is deteremined by your best run, so if you have a bunch of bad runs but manage to pull one out of your a$$ on the last run that is the fastest in the class, you win.

National Tours are a bit different. Each person gets three runs on Saturday and three on Sunday. The best runs from each day are added together to determine class winners.

PZ

2008 New England Region SCCA HS Class Champion
2008 New England Region Stirling Moss Championship co-winner.
92HS - 2007 Mazda 3s Sport Sedan -2006 Miata Wheel, 16x6.5, 15lb w/ Hoosier A6 245/45R16 (f) and 225/50R16 (r) MS Accessory Sport Shocks
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post #29 of 134 (permalink) Old 05-28-2008, 03:30 PM
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Re: Autocross FAQ

Times Total
67.921 54.516
67.956
66.457+1
65.683
65.892+1
65.714+1

I know how they keep track of the times but whats the formula to calculate that?


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post #30 of 134 (permalink) Old 05-28-2008, 03:47 PM Thread Starter
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Re: Autocross FAQ

[quote author=astrob0y link=topic=87808.msg2347362#msg2347362 date=1212003030]
Times Total
67.921 54.516
67.956
66.457+1
65.683
65.892+1
65.714+1

I know how they keep track of the times but whats the formula to calculate that?
[/quote]

It looks like the club you ran with is using some sort of factor time. Many clubs do this to 'normalize' times across classes so that in theory if a driver were to drive in two different classes, his final time, after the factor was applied would be the same.

Do you have a link to the results that we can look at. It might help out.

2008 New England Region SCCA HS Class Champion
2008 New England Region Stirling Moss Championship co-winner.
92HS - 2007 Mazda 3s Sport Sedan -2006 Miata Wheel, 16x6.5, 15lb w/ Hoosier A6 245/45R16 (f) and 225/50R16 (r) MS Accessory Sport Shocks
Slow in - Fast out Fast in - out backwards
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