just curious but...

[andrew1984]

just curious but... if you run in a stock class - then why the hell are you allowed to run R-Compound tires? doesnt this just contradict the entire point of stock class?

IIRC, in the US - stock means stock. you can only use street tires.

why are you allowed to use R-Compound in every class, but only non-dot in MOD? it just doesnt add up to me?

can i get an explanation please?

should it be :

stock- street tires
super stock/street prepared - R-Compound
MOD- non-dot

i dont want to come across as an a$$hole, or a pain in the butt - im just curious as to what the answer is.

-thanks

[ice/solo racer]

The truth is the scca allows the use of R-tires in all classes BUT street tire classes.Our rules are far less restrictive in that scca stock class allow only stock size rims be used,where we get to use whatever fits as long as doesn't extend beyond factory fender in the stock classes.
The scca doesn't use a tire bonus try and level the field a little bit,street tires go against r-tires.
Mod classes can use any tire as well,but only mod classes are allowed the use of non dot slicks(as long as roll over protection is provided).
Part of the reason for r-tires,other than the extra grip,is the fact that they don't squeal like banshee's as street tires do(except azenis)and with the dwindleling use of lots the unwelcome noise is sometimes the difference in using the lot or not.
Not sure if this helps or not.

[andrew1984]

eh, im still iffy on "understanding it" :)


arent they removing the street tire bonus? or is that just a rumor?

it makes sense to only be allowed to use street tires in stock, doesnt it? or at least give it points.

i know its not up to me, and i do know that i dont want to piss anyone off. i was interested in knowing the details. thanks corolla man :cool:

[Marsh]

Originally posted by andrew1984
eh, im still iffy on "understanding it" :)


arent they removing the street tire bonus? or is that just a rumor?

it makes sense to only be allowed to use street tires in stock, doesnt it? or at least give it points.

i know its not up to me, and i do know that i dont want to piss anyone off. i was interested in knowing the details. thanks corolla man :cool:

R-compound tire are street legal. There is nothing stoping anyone from driving around on them everyday. So if you say people must have stock tires, then are you going to restrict it to OEM tires? What if my OEM tires aren't made any more. If I can go out and buy a Goodyear F1, BFG G-Force KD, or a Falke Azenia then why not a Kumho V700? They are all street tires.

[andrew1984]

Originally posted by Marsh
R-compound tire are street legal. There is nothing stoping anyone from driving around on them everyday. So if you say people must have stock tires, then are you going to restrict it to OEM tires? What if my OEM tires aren't made any more. If I can go out and buy a Goodyear F1, BFG G-Force KD, or a Falke Azenia then why not a Kumho V700? They are all street tires.

hey marsh.

i did not say that you must have stock tires.
i simply tried to point out what i understood the ruling as.

Sure R-compounds are street legal, but if you want to get technical... they ARENT street legal after a certain depth. (4/32nds i believe?) And it is pretty well known how quickly R-compounds shave down.

And by that logic, why cant i use race slicks?
i mean... i can go out and buy those too. (46% discount infact)

:) peace.

[Dave Barker]

Are you talking Solo1 or Solo 2 ?

[Marsh]

Originally posted by andrew1984
hey marsh.

And by that logic, why cant i use race slicks?
i mean... i can go out and buy those too. (46% discount infact)

:) peace.

You can't use racing slicks because of the traction level. A Hoosier R25 slick is so sticky when warm that a stock vehicle would roll over simply taking a sweeper. This is why you must have roll over protection to run a non DOT tire in Solo-2. (and contrary to popular opnion they don't take that long to warm up and are stikier than an R-compound when cold)

My point is this. Where is this: If you don't allow R-compound then what do you allow? If you start restricting certain DOT tires then we'll have to introduce a new classing system for tires as well as cars. In my opinion the DOT rule is valid.

[andrew1984]

i dont know. honestly, i have no problem with the way things are.. and im not complaining.

it would just seem to be more practical for use of R-compound in superstock and street prepared.

despite my thoughts, i am however - not prepared to get into a big discussion on this :) . my questions have been answered.

[ctheo]

R's are also less expensive to run. IIRC 205/50/15 Toyo RA1's go for $160 per corner. A street tire that offers similar performance could fetch almost twice that. Hell shitty Michelin XGTV4's that came on stock Integras cost more than RA1's.


On top of that R's should last longer then off the shelf high performance rubber. For example for you used Toyo T1-S at full tread depth on the track the tire would tend to break off in chunks, rather than wear evenly. To prevent the chuncking you'd have to shave them. I'm not sure what it costs to shave a tire, but it can't be less than $15 - $20 per tire.

So I believe one of the factors in allowing R's is due to cost.

The initial investment is quite hig for 4 tires and new wheels, but over a couple of seasons you'd end up way ahead financially and in the standings.