Which R-comps for Auto-X?

[Jason@SportsCar]

Originally Posted by SilverBack

I'll check in with my shop tomorrow when they open first, but I'll bookmark that link for now. Thanks!



I see about the springs. I'm also running Falken ZE502's. Does this mean I can move up to ST? If not, then which class?

Yes, you can run in ST.

[LtNoogie]

Try the Kuhm Ectsa XS for one season. If you drive like me, you will need a couple of seasons more experience before you get the benefit of R comps. If you don't like them after a couple of sessions, I am sure there are YW members who will buy them off of you. I might need a replacement set by then.

[justjesus]

Good input, gentlemen!
And good post, Silver. I was actually going to ask the same question, as I was considering the R1s (due to cost) over the A6, and V710s. But from what I researched, I was leaning toward the V710s. For us newbies, that's a better deal.
NOW, as for competing for points, especially in HS, we need to talk. I'm already moving into CST myself, for now, but MAY venture back into HS. We'll talk and I'll tell you why.

on a somewhat similar note, how are the Advan AD08s? There's a set for sale at 350$US.

[SilverBack]

Oh that's right I forgot about NT's. Geez too many tires too choose from already lol

Jesus. PM me. I'm in and out of the house today so I'll check when I can

[mojoyaris]

Too bad you guys can't run the tires that come from Japan (not Dot rated). There are some great compounds there that can be used (in Japan and Okinawa), but not in the US.
Toyo has a great set of R888's that are much stickier than the R888's or RA1's in the US.

I figure for the budget racer using a Yaris for auto X, You may not win against some of those faster cars out there. Not for FTD anyways. I would go with the V710 because of the cost factor and that they last longer. If however you want a longer lasting tire than that go with a 100 Treadwear rated tire like the R888's or a Nitto NT-01. They're affordable, last a long time and you can use them for both track and solo 1/2 events.

I don't know of many Yaris racers out there with a special tire expense account. Not unless you get sponsored by one of the manufactures.

[cali yaris]

Are Hefty bags good enough to store R comps in?

[Loren]

Originally Posted by cali yaris

Are Hefty bags good enough to store R comps in?

Yes, heavy-duty black trash bags are more than adequate for storing tires in.

The goal is to keep them isolated from ozone, sunlight, and temperature extremes.

[SilverBack]

They might be good if you stuck the tires in the fridge. Take it from someone who used to hide in Hefty's as a kid while playing hide-n-seek with the cousin, there's no air-condition in there! LOL

[SilverBack]

Sweet! Thanks for your help Jason

[Jason@SportsCar]

Originally Posted by SilverBack

Sweet! Thanks for your help Jason

Keep in mind none of the tires you were looking at are ST legal - must have a 140 or higher tread wear rating for ST.

[SilverBack]

I guess I'll just have to use the Falkens again for the next event and just grab a sway bar and CAI way before. I can still wait a minute to get rims and tires seeing as how I need to make enough storage space for them anyway. Can I still run the sway bar and CAI in ST? I'm looking at the class rules right now, but doesn't really say anything specific about engine and suspension parts til you get to SP.

http://www.sfrscca.com/solo2/faq/auto.htm#114

I take it "common parts" also include CAI? Or is it limited to a filter-only upgrade? Is sway bar also considered common?

[Jason@SportsCar]

Originally Posted by SilverBack

I guess I'll just have to use the Falkens again for the next event and just grab a sway bar and CAI way before. I can still wait a minute to get rims and tires seeing as how I need to make enough storage space for them anyway. Can I still run the sway bar and CAI in ST? I'm looking at the class rules right now, but doesn't really say anything specific about engine and suspension parts til you get to SP.

http://www.sfrscca.com/solo2/faq/auto.htm#114

I take it "common parts" also include CAI? Or is it limited to a filter-only upgrade? Is sway bar also considered common?

Those are not the rules: http://scca.com/contentpage.aspx?content=61

You want to look at section 13-19, specifically for Street Touring.

[SilverBack]

Originally Posted by Jason@SportsCar

Those are not the rules: http://scca.com/contentpage.aspx?content=61

You want to look at section 13-19, specifically for Street Touring.

Okay now it's making even more sense. Getting there slowly lol. I checked the SCCA page several times before that. Not sure why I couldn't find it...

[cali yaris]

Some classes limit you to options that would come from the dealer. It's confusing to me that's for sure.

[Jason@SportsCar]

Originally Posted by cali yaris

Some classes limit you to options that would come from the dealer. It's confusing to me that's for sure.

Dealer installed options are not legal in stock class, only factory or port installed options.

Typically any class beyond stock you would use an aftermarket part that is better than the dealer install stuff, so it becomes a non issue.

[kngrsll]

Here is a chart someone else posted here for your help:

http://autocross.com/er/carmodandclassification.pdf

now that you have decided on a class, picking a tire will be easy. The fastest tire last season was the R1R, but they will not last long if you use them on the street. If you are only bolting them on to race with, they would probably be your best choice. The next best would probably be the Kumho XS or Direzza Star Spec. I love my star specs, i daily drive them, autox on them, and do track days on the same tires, they are amazing pieces of rubber! ST allows you to run up to a 225 tire on a 7" (or7.5"?) rim. you can still do alot of parts, springs, shocks, (or coilovers), rear sway bar, seat, header, intake, exhaust, and i am sure there are more.

Links:

http://www.tirerack.com/tires/tires....t+Z1+Star+Spec

http://www.tirerack.com/tires/tires....Model=Ecsta+XS

http://www.tirerack.com/tires/tires....VAN+Neova+AD08

http://www.performanceplustire.com/p...490#prodAnchor

[ozmdd]

Couple of things:

R-comps on a stock Yaris are going to get shredded on the outside edge, and are a real risk for rollovers, due to the high COG and extreme grip.

Kumho V710's and Hoosier A6 are top-notch autocross R-comp tires.

dunlop Star-Specs and Kumho XS are excellent, affordable and durable "Street" tires, very popular in ST-based classes. The Bridgestone RE11 is also getting a lot of love from people who ran at Nationals in Lincoln (concrete) last fall. All three are tires you could easily use as daily-drivers in most non-snowy parts of the country and get 10-15K miles, even with occasional autocross use, so you save $$ on new wheels.

As for the Rear sway bar, there has been some debate about it being legal for the Yaris in HS. Jason may have better info than I do based on his experience, but I did email the rules representative at the SCCA national office, and he interpreted the rules in favor of the TRD RSB, because it is officially listed as a port option for Toyota Yaris with a corresponding part number. FYI.

IMHO, your car is not going to be able to take advantage of the R-comps as it it currently prepared. Try something in a street tire and see how you do, then consider what prepartion you'd eventually like to do to your car.

One other thing- tirerack.com has a $50 rebate on Dunlop Star-spec's for the next month!!

[Jason@SportsCar]

Originally Posted by ozmdd

As for the Rear sway bar, there has been some debate about it being legal for the Yaris in HS. Jason may have better info than I do based on his experience, but I did email the rules representative at the SCCA national office, and he interpreted the rules in favor of the TRD RSB, because it is officially listed as a port option for Toyota Yaris with a corresponding part number. FYI.

Yes, the port installed stuff is OK - SCCA considers the port to be an extension of the factory. Most of the time you can spot the dealer VS port installed options by reading the fine print. If it says installation charges apply and vary by dealer, it is typically dealer installed and not legal.

Just for fun I went on and "built" a 2010 with a bunch of TRD parts.

Sport Muffler and rear swaybar come up as installed by the manufacturer - should be legal.
Clutch, CAI, springs, rad cap and shift knob are listed as installation not included, see your local dealer - would not be legal.

Keep in mind the TRD rear bar under the Port installed allowance does not mean you had to order it with your car or have the port install it, you can do it yourself after the fact. But this allowance does not allow the use of an aftermarket rear bar, even if it appears "identical". You must use the TRD part to be legal.