SCCA C Stock Discussion

[Thrustin]

Originally Posted by rx3

I think I read somewhere that different rim diameters are going to be allowed in stock class (next season)?
Has anyone considered to run on 16" instead of 17" rims?
A taller 245 tire on a 7" wide 16" rim would be less pinched and therefore possibly deliver more grip (as opposed to a 17" rim).
(I understand that the sidewall would flex more, but this could be overcome by turning sooner).

Rims in Street can be +/- 1" in diameter of OEM. 16x7 is legal right now.

[rx3]

Since 16x7 is legal, has anybody considered to run on 245/45 16?

[Sccabrz192]

Originally Posted by rx3

Since 16x7 is legal, has anybody considered to run on 245/45 16?

The only ones available are Bridgestone RE11A of the consummate autocross tires... Is stick with 17s where you have more and better options


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[rx3]

Ok. I was thinking of Hoosier A6 or A7 but I meanwhile understand that these tires are not allowed anymore in stock class. (I think some S2000 were running 245/45 16 tires even on 6.5" wide rims).
What Autox classes are still running R-comp tires?

[Thrustin]

Originally Posted by rx3

Ok. I was thinking of Hoosier A6 or A7 but I meanwhile understand that these tires are not allowed anymore in stock class. (I think some S2000 were running 245/45 16 tires even on 6.5" wide rims).
What Autox classes are still running R-comp tires?

There is a seperate Street Class for R Comps.

[Sccabrz192]

Originally Posted by Thrustin

There is a seperate Street Class for R Comps.

Which will end after 2014 season AND that ruleset does not allow the +/-1" diameter, so it's a moot point.

You have to run CSP, SM, or Prepared class to run R-comps any more.

[Thrustin]

Originally Posted by Sccabrz192

Which will end after 2014 season AND that ruleset does not allow the +/-1" diameter, so it's a moot point.

You have to run CSP, SM, or Prepared class to run R-comps any more.

I don't know about the rules for next year, but currently "Street" does allow for +/- 1" in diameter for wheels. The width must stay OEM and the offset must be within 6.25mm (I think?).

[Sccabrz192]

Originally Posted by Thrustin

I don't know about the rules for next year, but currently "Street" does allow for +/- 1" in diameter for wheels. The width must stay OEM and the offset must be within 6.25mm (I think?).

Stock rules were frozen from 2013 as the street r for 2014 so the diameter rule addition didn't apply


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[Thrustin]

Originally Posted by Sccabrz192

Stock rules were frozen from 2013 as the street r for 2014 so the diameter rule addition didn't apply


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So Street R has no diameter changes allowed, but Street does?

[Kido1986]

Originally Posted by Thrustin

So Street R has no diameter changes allowed, but Street does?

Correct.

[Thrustin]

Originally Posted by Kido1986

Correct.

Roger that.

[Sccabrz192]

This thread needs to be renamed to street r, I always get confused which thread I'm in


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[Kido1986]

@qoncept

Care to fix it to help stop confusion

[Thrustin]

Originally Posted by Sccabrz192

This thread needs to be renamed to street r, I always get confused which thread I'm in


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Lol, I thought I was in the other thread, lol.