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Old 12-13-2014, 04:01 AM   #1
Dimiperiv34
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Default Wheel ? For local autocrossers

So this spring I'm looking to get a new wheel and tire setup. Currently I'm on stock wheels wrapped with Michelin pilot a/s 3.

Depending how my work schedule will be I'm hoping to get into autocross this year. As of right now I'm not sure if I'll be able to go once a month or every weekend. If I'm able to go every weekend I will probably end up buying a dedicated wheel and tire set up just for autocross with proper wheel specs. I was thinking something like the drag dr 17x7 which is cheap$ and light weight.

The wheels I'm looking to get if I can only autox once a week are either 18x8 Enkei RPF1 or 18x9.5 Enkei NT03. My dilemma is that neither of these wheels are "legal" for stock street class. So my question is how strict are the local tracks about wheels ?

Ive narrowed it down to these two wheels which I like the most, but I don't want to be forced to race in a different class with faster cars and then lose any fun that I would have.

Also I do not plan on competing in any national events either. Just looking to have some fun but be able to compete as well.
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Old 12-13-2014, 03:41 PM   #2
hoffmanEstates
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Rpf1 should be sufficient

vroom-vroom-- pssshhh!
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Old 12-16-2014, 02:02 PM   #3
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Since your stock wheels are 17x8 that is the size you have to run for autocross in DStock (where the 2011-2015 WRX is very competitive). There are plenty of aftermarket wheels in that size, from cheap Drags and Rotas (some are in the 17-18lb range) to Enkei RPF1 and other lightweight pricier wheels.

Asking if tracks are strict about wheels isn't exactly correct..
In autocross, there may be tech inspections for safety, but there will be nobody checking your car to see if it's legal for the class you registered in. It's your responsibility to run legally, and your competitors have the right to protest you (not likely locally). If you want to have fun in autocross, it's probably best to keep it legal. Running heavier 18" wheels will just slow you down anyway, so most people won't care, but some might. In SCCA autocross, rules are rules! You can certainly run with other clubs that may be more laid back, or even have different classes and rules.

If you really want to have fun, get the best *tires* you can, in the widest size that'll fit. For DS WRX's in the street tire index class that'd be 255/40-17. Dunlop Direzza ZII, etc, with 140-200 treadwear. Here's a list from last year:
http://forums.nasioc.com/forums/show....php?t=2412417

Why not throw some good tires on the stock wheels and get the 18's for daily and show?
An upgraded rear sway bar will help the car rotate better, too.

There is an Autocross forum here on Nasioc, too, if you haven't seen it yet:
http://forums.nasioc.com/forums/forumdisplay.php?f=188
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Old 12-17-2014, 02:31 AM   #4
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Quote:
Originally Posted by tronic View Post
Since your stock wheels are 17x8 that is the size you have to run for autocross in DStock (where the 2011-2015 WRX is very competitive). There are plenty of aftermarket wheels in that size, from cheap Drags and Rotas (some are in the 17-18lb range) to Enkei RPF1 and other lightweight pricier wheels.

Asking if tracks are strict about wheels isn't exactly correct..
In autocross, there may be tech inspections for safety, but there will be nobody checking your car to see if it's legal for the class you registered in. It's your responsibility to run legally, and your competitors have the right to protest you (not likely locally). If you want to have fun in autocross, it's probably best to keep it legal. Running heavier 18" wheels will just slow you down anyway, so most people won't care, but some might. In SCCA autocross, rules are rules! You can certainly run with other clubs that may be more laid back, or even have different classes and rules.

If you really want to have fun, get the best *tires* you can, in the widest size that'll fit. For DS WRX's in the street tire index class that'd be 255/40-17. Dunlop Direzza ZII, etc, with 140-200 treadwear. Here's a list from last year:
http://forums.nasioc.com/forums/show....php?t=2412417

Why not throw some good tires on the stock wheels and get the 18's for daily and show?
An upgraded rear sway bar will help the car rotate better, too.

There is an Autocross forum here on Nasioc, too, if you haven't seen it yet:
http://forums.nasioc.com/forums/forumdisplay.php?f=188
I didn't know that there were no inspections for checking to see if the car is legal for the class. I'm trying to not have 3 sets of wheels and so thats why I was hoping I can run the RPF01. I'd be 2mm difference from the legal offset. Wheel height and diameter would be all legal. I was looking to run the direzza zII tires.

Currently on my stock 17x8 I'm running all seasons and was planning on keeping these as my winter setup. If I were to make these my autocross set up I would have to sell my stock dunlop tires and my all season tires. Buy the direzza zII and keep that as my autocross set up. Then buy an 18in set up with all season tires and run it all year round.. which I don't really want to do in Chicago weather.

Like I mentioned in my first post i would NOT be apposed to getting a legal dedicated autocross if I can go every weekend.

But if I can only go once a month financially it wouldn't be worth running 3 wheel set ups. I'm just trying to get a rough idea right now for when the time comes for me to get a new wheel set up and once I figure out my work schedule to figure out how often I can actually run.

As far as suspension I want to hold off a little while and actually make some passes since it'll be my first time racing autox so Id like to get a feel for the car and feel the change in the upgrades that I do make.
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Old 12-17-2014, 02:47 AM   #5
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Drag makes wheels in 17x8 +47. They are less than $500/set and exactly at the limit of the legal offset.

Autocrosses don't have inspections to make sure the car is legal for the class, just safety inspections.

The participants police themselves. Meaning it's up to you to make sure your car is legal for the class you're running in. If it isn't, someone else in your class may point it out and ask you to run in the appropriate class.

It's well known that the RPF1 doesn't make a wheel legal for 08+ WRX in DS, and some people have even gone to the expense and work of having the RPF1's milled to the legal offset so that they can use them.

Hope your work schedule works out. A full season of autocross is a blast. You'll be hooked for sure!
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Old 12-17-2014, 02:54 AM   #6
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I'm hoping it works out too! haha I'm itching to get out there but I'm in the restaurant business working breakfast/lunch so since events are typically on weekend mornings Im s.o.l. I may be getting a new job in the next few months which may open up my weekend mornings but Im not sure just yet.
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Old 12-17-2014, 03:12 AM   #7
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You can always just put better tires on your stock wheels.

Stock wheels are perfectly fine and you can still be every bit as competitive as the guy with high end wheels.

The sticky street tires like the Z2, R-S3, Rival, etc are fine for the street nearly year round.

Also, you don't actually need sticky tires for autocross. A great exercise for new autocrossers is to learn in a car that handles like poo and has crappy tires.

You will develop skills faster, out of necessity, than the guy who started on sticky rubber.
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Old 12-18-2014, 12:33 AM   #8
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how are the stock dunlop tires for autocross?

Now you got me thinking.. haha wondering if I should buy drag wheels that are stock class legal and run the stock dunlop tires on those until they wear down and use that set up for just autocross.

Then I can leave my all season tires on my stock wheels for my winter set up, and then still buy a summer set.
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Old 12-18-2014, 10:08 AM   #9
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The stock dunlops aren't cheap, so if you are going to buy something, buy something good.

I was just thinking you had a set of stockers that were just going to get put aside.
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Old 12-18-2014, 11:06 AM   #10
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another point would be: do you want to do any upgrades to the car in the future?
like if you wanted to do any mods that'd put you in STU, ASP, or SM.. there are different wheel size allowances you might as well go with now.
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Old 12-18-2014, 11:22 AM   #11
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I do have stock tires right now just sitting in my garage. Sorry that's what I meant to use them with the drag wheels.

And summer set as in a set on 18in NT03 with new tires for daily use.
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Old 12-18-2014, 11:23 AM   #12
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I will eventually like to get intohigher classes but I don't see myself doing that any time soon. Maybe in 2-3 years
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Old 12-23-2014, 11:00 AM   #13
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If this is your first season, I would just use your stock tires. They should last you for at least one season.

I have winter tires on my stock wheels, and will get aftermarket wheels for my stock tires in the spring.
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Old 01-17-2015, 07:31 PM   #14
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Quote:
Originally Posted by Dimiperiv34 View Post
how are the stock dunlop tires for autocross?

Now you got me thinking.. haha wondering if I should buy drag wheels that are stock class legal and run the stock dunlop tires on those until they wear down and use that set up for just autocross.

Then I can leave my all season tires on my stock wheels for my winter set up, and then still buy a summer set.
This is a good idea.......unless you show up at your first autox and feel the desire to be as competitive as you can be and wish you were on the best tires. The stock Dunlops are plenty decent to run with. The Chicago Region SCCA also has a drivers school in the spring you could sign up for to get your first taste of autox, but it is a whole weekend to commit to.

http://scca-chicago.com/chicago-scca...earning-curve/

Hope to see you out there!

Wayne
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Old 01-19-2015, 02:30 PM   #15
Dimiperiv34
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That's awesome I was just looking the other day for classes and only found a one day class in south bend Indiana haha.

Things have changed and I had to buy myself a set of winter tires which set me back a little on my car funds.

Now I will be running my winter tires on my stock wheels and keeping them on there permanently.

So now I will not be buying a 17 wheel and 18in wheel. So I figured my best and cheapest option is to go with a new 17in wheel and run my stock tires on it and next year look to get into a 18in summer set.

I'm still looking at the rpf1 and now with the new offset rule being 7mm I will be 1mm off.. At this point I don't really care and just want to go out and have some fun because I doubt I'll be able to actually compete this summer. I'll be able to make it to only a few events.

But I'll keep you guys posted for when I do go because I would love some tips and advice !
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Old 01-19-2015, 02:36 PM   #16
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Okay, so running the RPF1 will technically bump you into STU. So if you end up getting bumped, you probably want to make sure you don't go bigger than 245 on the tires, or else you'll be bumped right past STU, all the way to ASP.

FWIW, the RPF1 doesn't have that same concave look in 17x8 that some of the wider RPF1's have. So if you want that wheel at all for cosmetic reasons, you may want to consider that.
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Old 01-19-2015, 03:03 PM   #17
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I'll be honest here and say I'm pretty confused on what I want to do haha. Right now at home I have winter tires on my stock wheels which I am leaving on.

Then I have a set of stock Dunlop tires and a set of Michelin as/3 all season tires.

I'm looking to sell my Michelin as/3 and re coupe the cost of my winter tires.

Figures since the stock wheels sell for practically nothing and I only have about 10k miles on them I would run those for autox until they wear down, and buy some zII tires.

I guess my best bet would be to run legal offset wheels for track and dd this summer and then next summer buy a 18in dd setup.

A set of drags would run me like $500 and then I'd be set. Or if I find some used oz ultralegera wheels in the same ball park...

Sorry for the rant guys just trying to talk out loud and figure this out without spending crazy money. I gotta face I can't have looks and autox wheels at the same time right now.
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Old 01-19-2015, 03:09 PM   #18
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I would buy the cheapest 17x8 stock legal offset wheels you can, and mount your OE tires on them. And use that for autocross in stock class, or in rookie/novice class with a stock PAX.

Then if you want, you can go out and buy a set of 18" wheels for DD and looking fresh.

This way you'll have your autocross set, your spring/summer/fall DD set, and your winter set.

That's what I'd do.
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Old 01-19-2015, 03:12 PM   #19
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That's my ultimate goal but to run a 18in dd set I'd be looking at about $2k for wheels and tires plus let's say $500 for autox wheels...

But for now I'm just going to look for autox wheels and hopefully in the next few months I can maybe find a good deal on some 18in wheels.
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Old 01-19-2015, 03:45 PM   #20
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I had my eyes on some Enkei PF01s 18X8 40mm offset with 235/40 tires which will sit more flush against the fender but put me at a higher class in Autocross.
Then the 18X8 50mm PF01s are on sale at Tirerack for $164 less for all 4 wheels & keep me in the lower class.

I've never autocrossed before & want to get into it. Already bought a helmet. I'll probably go 2-3X a year as Windy City Miata Club has some that are closer to me in Schaumburg.

Still undecided, but will probably buy the 50mm offset in the spring if they're still in stock. Waiting for some summer tires to go on sale too. But most important, I'm still working the wife to let me spend +$1800(I'm getting new TPMS sensors) on the rims for my 40th birthday.
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Old 01-25-2015, 10:58 PM   #21
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As has been suggested it's in your best interest to stick with whatever tires you have, stock or otherwise, if you're just getting started. We all know they aren't going to give you the absolute best performance, but you can't possibly expect to show up at your first event and win the class. Why spend all the extra money when you haven't even tried out the "sport" and decided whether or not you enjoy it?

Run 2 or 3 events (or even the whole 1st year) on whatever you have. See if you like it. See what you and your car are capable of. Attend whatever local "school" the regional SCCA offers. See if you can get tips and pointers to help you improve. Once you get a feel for the car, the competition, and the sport you'll have a better idea where you want to go with your car. If you decide Street Touring or Street Prepared are where you want to end up then it doesn't make sense to buy a set of wheels and tires for Stock/Street class. On the flip side, if you get hooked on autocross (easy to do) you might decide that Stock/Street class is an absolute blast and you want to keep the car legal. You wouldn't want to spend $1000-2000 on wheels and tires that you can't use (legally).
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Old 01-26-2015, 07:48 PM   #22
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Quote:
Originally Posted by MATR6 View Post
I had my eyes on some Enkei PF01s 18X8 40mm offset with 235/40 tires which will sit more flush against the fender but put me at a higher class in Autocross.
Then the 18X8 50mm PF01s are on sale at Tirerack for $164 less for all 4 wheels & keep me in the lower class.

I've never autocrossed before & want to get into it. Already bought a helmet. I'll probably go 2-3X a year as Windy City Miata Club has some that are closer to me in Schaumburg.

Still undecided, but will probably buy the 50mm offset in the spring if they're still in stock. Waiting for some summer tires to go on sale too. But most important, I'm still working the wife to let me spend +$1800(I'm getting new TPMS sensors) on the rims for my 40th birthday.
I have also been reading a lot about the SCCA regulations regarding our 2015 WRX. Up until this year, the WRX fell into the "STU" category where we could go with a max 245 on the tire and unlimited width on the wheel. Now, we cannot compete in any "Street Touring" category if we go wider than a 8" wheel (stock size) but we can still use a 245 tire. This sucks because now we're limited to wheel width, nothing larger than the stock setup.

Regarding the wheel/tire setup, to stay in a stock "street" category you must keep the wheel and tire width to OE spec in order to compete in that category. That goes for all WRXs. The only modification you can do is change the offset to +/-7mm from stock. This is where a mostly stock 2015 WRX would best compete. Basically, keep the 8" wide wheels and 235 tires.

My first focus is to improve the look of my car and my second is to not go all out with the mods so I throw myself into a class where I'm insanely outmatched when all I want is to have a little fun every month at an SCCA autocross event. This is also my first year attempting any racing of any kind so I'm pretty psyched.

Last edited by wiUFsh; 01-26-2015 at 09:56 PM.
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Old 01-26-2015, 08:30 PM   #23
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Unless the rule was just changed this year, STX does have a wheel width limitation of 8".
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Old 01-26-2015, 09:30 PM   #24
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You are correct, tronic. I apologize. If you drive AWD in the STX category the max wheel width is 8". This makes it even more frustrating that the 2015 WRX was moved from STU to STX. STU allows unlimted wheel width.

Look on page 85: http://scca.cdn.racersites.com/prod/...ook_online.pdf
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Old 01-26-2015, 09:55 PM   #25
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2015 rules changed the offset to +-7mm on the offset.. Which sucks because I'd prefer to run a 17x8 rpf1 over the drag wheels. The rpf1 I think will be more durable as a dd wheel and for autox but I'll be off by 1mm.

Since this year I doubt see myself running that many events I'm just debating if it's worth buying the rpf1 and asking the people running in my class if that's okay ..
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