2014 Autox "Street" Tires - Page 2 - Mazda3 Forums : The #1 Mazda 3 Forum
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post #11 of 101 (permalink) Old 01-30-2014, 12:39 PM Thread Starter
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Quote:
Originally Posted by dgross7 View Post
I'll be running z2 most likely, 225/45 17.
How about the 215/40ZR17 Dunlop ZII? The difference in tread width is only like 4mm narrower than the 225. It weighs less, and is only 23.8" tall. Also, if you think of tires as "springs," then the shorter sidewall effectively gives you a higher spring rate. (Less lateral movement of the tread.) Of course, you'll have to decide if it will give you the gearing you're after.
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post #12 of 101 (permalink) Old 01-30-2014, 11:02 PM
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If you're looking for lightweight-ish 16x7.5s head to Tire Rack and search for a 2000 Honda Prelude. That way it can pull up 7.5" width options for you. The Andros Spec D is a nice looking wheel and it's on close-out for $99!

As far as tires go, if you plan on dailying your race tires, but not afraid of hydroplaning, the Rival is the way to go. They have lasted longer than ANY tire I've ever ran on an autocross car (even all seasons, my cornering habits tend to shred tires with a high void area). They're sketchy in really heavy rain, but they wear forever. And even after 10,000 street miles and hundreds of heat cycles they'll grip almost as well as new.

But I'm 95% sure I'll be running Dunlops this year. The Z1 Star Spec is my favorite +140 UTQG tire. I've never ran on the ZIIs so I'm hoping they didn't completely change the characteristics from one to the next. All eggs -> One basket.
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post #13 of 101 (permalink) Old 01-31-2014, 12:19 AM
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I heard the z2 performs closer to that of an r comp, as in there is more grip up as you approach the limit but once you pass it they really let go.

If I go for the 16s I would probably drive them strictly for events.

I wish tire rack would let you search by bolt pattern, width and offset.


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Last edited by dgross7; 01-31-2014 at 12:26 AM.
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post #14 of 101 (permalink) Old 01-31-2014, 02:57 AM
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I'm kicking around testing some 225/45-17 Z2s for an apples to apples test...but the 16s sure sound nice...too bad there are only 3 of the andros left

Sport edition F7s are about 1.5lb more and in stock and $10 less.

And if the 16s don't work out I can get some Continentals for cheap in that size I can get rain wheels and tires for $800 delivered

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post #15 of 101 (permalink) Old 02-10-2014, 05:36 PM
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Does anyone know why tirerack advises that oem tpms sensors will not fit aftermarket wheels (rpf1, o.z. alleggerita, etc.)? I don't really want to spend 200+ for sensors from tirerack that fit, but at the same time I like that they mount and balance for free.

Why wouldn't oem tpms sensors fit on aftermarket wheels?

The other thing I could do is not run sensors with this set-up, especially since I would most likely drive these wheels at events and only occasionally on the street. I have oem rx8 wheels for the daily duty.


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post #16 of 101 (permalink) Old 02-10-2014, 05:38 PM
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i don't have sensors in my AX wheels

David Hedderick
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post #17 of 101 (permalink) Old 02-10-2014, 05:45 PM Thread Starter
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Originally Posted by dgross7 View Post
Why wouldn't oem tpms sensors fit on aftermarket wheels?

The other thing I could do is not run sensors with this set-up, especially since I would most likely drive these wheels at events and only occasionally on the street. I have oem rx8 wheels for the daily duty.
There are a few possible reasons they might not fit. Sometimes, it's the angle of the sensor. The barrel of an aftermarket wheel might be shaped differently than the oem wheel. Also, the thickness at the valve stem hole on the wheel could be different. My guess is that the original sensors might fit some aftermarket wheels, but if TR discovers a problem with even one aftermarket wheel... they'll probably recommend new sensors for all wheels.

There's no harm in running without sensors, as long as you're checking pressures yourself. You'll just have a low-pressure light show up on the dash.
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post #18 of 101 (permalink) Old 02-14-2014, 07:24 PM Thread Starter
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Does anyone else go back and forth every few days about which tires they're going to run?

It really is a good problem to have, (I need to remind myself this.) We've got a lot of good options in street tires right now.

Toyo's and Dunlop's are the two I've been considering most. However, the AD08R and potentially the new RS3 (revised compound,) if they release it in time, have also been on my mind. Then I keep thinking back to last season on Rivals, and they really were pretty good.

Fortunately (or unfortunately?) we have almost 3 months before our season starts in Minnesota, so I still have time to think it over, and check out results from some of the early tours/pros.
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post #19 of 101 (permalink) Old 02-14-2014, 10:27 PM
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Lots of intangibles go into tire selection. Driver style, car setup, typical weather conditions at local events, course design, course length and more. If you see a certain tire keep showing at or near the top in many places, that is a good clue.

In my world, Phoenix Arizona and nearby cities, my choice (and input) has evolved to the BFG Rival. I ran Dunlop Star Specs, Hankook RS3's, and then the BFG on my H Stock 08 Hatch, and now on my STF 06 3i its been all BFG. Period.

Had some very good results so far as the car has evolved, and am really liking the tires under our local conditions, courses and weather.

Did I mention at was 85* here today? Little warm for February.

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post #20 of 101 (permalink) Old 02-15-2014, 11:06 AM
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Originally Posted by mazda3az View Post
Did I mention at was 85* here today? Little warm for February.

Bring some of that over here to Illinois will ya . I'm definitely getting lots of good out of my Michelin Winter tires this season


I'm a Rival fan as well. Didn't like them so much at first when I was running them in H Stock, but they feel a lot better now on the smaller/wider wheel setup. I find them to be a highly versatile and work within a broad heat range. RS3's (at least the old ones) suck when cold, great when hot. Toyo's suck when hot, work great cold. The Rival's split the difference and have a wider sweet spot temp wise, or at least a more usable one. That being said, they might not be the best choice when you're a single driver and it's 40 degrees out, or if it's 95 and you're co-driving. There might be better tires in those extremes.
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