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YOUR RESEARCHTIRE ADVICE NEEDED FOR AN 03-C4S
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Recommend wheel widths
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Suggestion
I doubt 285 would be a problem but you should look at the tire specs of whatever tire you plan to mount and read the recommended wheel widths for that specific tire.
Leading evidence: 'Recommend wheel widths' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend wheel widths' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
One thing to be careful of when changing sizes on the C4S is the difference between the F/R tire diameter.
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Suggestion
Before changing tire sizes, you might want to look at the effect on the tire size.
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Suggestion · Original poster
Anyone running a 285-30-18 from the factory 295-30-18?
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My set lasted for roughly 15K miles, which is better than I used to get out of the Pirellis.
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Recommend wheel widths
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I doubt 285 would be a problem but you should look at the tire specs of whatever tire you plan to mount and read the recommended wheel widths for that specific tire.
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No, why do you ask? Ive gone to 315s on the stock wheel with no issue. I doubt 285 would be a problem but you should look at the tire specs of whatever tire you plan to mount and read the recommended wheel widths for that specific tire.
Winter or summer tires? I think it would be better to buy the proper size, but consider a brand or model with a lower price like Sumitomo HTR-ZIII. It's a good tire for the money in my experience.
I recently put on the sumis (htr zIII) in 295/30/18 and 225/40/18 and I think for the money they are hard to beat! The previous tires were PS1s but they were old and bald so I don't think any comparison would be fair.
The Sumi 295s were only $223 each.
Just make sure you get the overall diameter very close to the front or it'll wreak havoc on the AWD.
Hankook V12 Evo's also are a good buy and hold up quite well for DD, southern tire; don't know how they hold up in below freezing climates.
FWIW, I may try the Sumi HTRZIII, but that should be the bottom rung as far as cost effectiveness.
To the OP, unless your friend has a beater Pcar and is looking for least expensive, better to look for good used tires ( Michelin, Conti's, Pirelli's) than try subpar rated tires and suffer a failure if he takes the car above 80-90-100+ mph.
Is your friend's car lowered? does he need a thinner sidewall for clearance issues? According
to 1010 tires.com:
295 30 18 section width: 11.61in overall diam 24.96
285 30 18 section width: 11.22in overall diam 24.73
so your friend is getting a narrower tire (.39in) and a shorter tire (.23in); YMMV.
2nd for the Hankook Ventus Evo V12. I have these on my 996 and my S4 . Very predictable handling and nice and sticky. So so for wet but this is a high performance summer tire.
I haven't tried the PS2 before, so I can't give you a direct comparison. I always had Pirelli P-Zero Rosso tires before I bought a set of Sumis. The HTR-ZIII is pretty good for the money. My set lasted for roughly 15K miles, which is better than I used to get out of the Pirellis. I've still got some life left in the fronts, but not too much.
I think the Sumis are fine for street driving. They don't handle quite as well as the Pirellis did, but they are pretty close on the street. They did get a little loud towards the end of their life, but the Pirellis did too.
I need to buy a new set of summer tires before the warm weather arrives. I'm thinking of going to Michelin Super Sports if I can find them in the proper size. If not, I'm not yet sure what I'll get.
I know a lot of guys here like the sumitomos so I thought I would give them a try. They are excellent in the wet which is important in S. Florida but they are very stiff in my opinion. The roads in my area are horrendous and these tires need to be bled down. My tire $ usually goes toward R comps so I dont mind using a bargain tire. But, like Dennis said if michelin would make the super sports in 295 I would buy those exclusively.
Before changing tire sizes, you might want to look at the effect on the tire size. You can do so at:
http://www.miata.net/garage/tirecalc.html
or
http://www.1010tires.com/TireSizeCal...?action=submit
As 2K3TTMIA mentioned, you want to keep as close to the stock diameter as possible, or increase/decrease front/rear proportionally.
Good luck!
One thing to be careful of when changing sizes on the C4S is the difference between the F/R tire diameter. Get it too far off and you can create all kinds of problems. Don't want to mess up the front diff.
On my turbo, went to Sumis. Very impressed. THis in comparison to the stock contententials on this car, and the various on my previous 993 and 911. Very good bang for any buck. I would pay more if it would deliver.
Stay away from the hankook v12. I had them on my 335 after reading the great reviews on them from tire rack.
I gave them about 10k miles with a proper alignment to BMW spec and oem sizes. The tire felt numb. Not much feedback. Compared to my hankook I pike snow tires, I prefer the snows over the v12.
Never again. I think I'm gonna try nitto invo or the nitto nt05 on the Porsche soon.
While I'm generally one to stick with OE recommended rubber and also considered a set of PS2s, I was intrigued enough by comments about the Sumis that I opted to give them a shot. I picked them up this Summer/Fall and am so far very happy with them on my C4S.
-Eric
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