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      04-25-2016, 02:20 PM   #1
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Understeer

Planning on upgrading to yokohama ad08 on zcp rims, 255/35 front 295/30 rear. how bad would understeer be, would pss 255/275 be a better option.
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      04-25-2016, 02:34 PM   #2
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Planning on upgrading to yokohama ad08 on zcp rims, 255/35 front 295/30 rear. how bad would understeer be, would pss 255/275 be a better option.
Yes, I would try to keep the front-to-rear difference in widths the same as stock. 255 and 275 is great for a street driven car. 295 on the ZCP 10" wheels is not exactly optimal.

The PSS is an outstanding street performance tire that should last you a while. There's a reason it consistently wins performance tests. A lot of guys here (myself included) use them and love them.
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      04-25-2016, 02:36 PM   #3
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Originally Posted by dparm View Post
Yes, I would try to keep the front-to-rear difference in widths the same as stock. 255 and 275 is great for a street driven car. 295 on the ZCP 10" wheels is not exactly optimal.

The PSS is an outstanding street performance tire that should last you a while. There's a reason it consistently wins performance tests. A lot of guys here (myself included) use them and love them.
Thanks! 295 did seem a little overkill
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      04-25-2016, 02:47 PM   #4
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Quote:
Originally Posted by opihi5 View Post
Planning on upgrading to yokohama ad08 on zcp rims, 255/35 front 295/30 rear. how bad would understeer be, would pss 255/275 be a better option.
i would go 275 front then.

but ideal would be 265/285

or 275 square =)
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      04-25-2016, 04:13 PM   #5
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Thanks! 295 did seem a little overkill

Not only will those tires be more expensive, but they will also be heavier, louder, and reduce wet weather traction. Those are pretty important things for what I assume is a daily-driven street car. The contact patch for a 295 tire on a 10" wheel won't be ideal, either.

If you must have something a bit wider in the rear, 285/30R19 is the OEM size on the M3 GTS which uses the ZCP wheels (painted black). It will limit you on tire choices.
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      04-26-2016, 12:00 PM   #6
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Under steer is more about how you drive the car and how wide the front wheel is and how much front camber and toe there is than whether or not the rear tire is wide or not. For instance a 255 on a 10" wheel is probably going to have similar performance to a 275 on a 9. Pick the tires you want to run and set up around it it is not rocket science
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      04-26-2016, 12:05 PM   #7
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I ran PSS 295 rear and 275 up front and it looked and felt great until the road was less than perfect and then the rears rubbed. Drove me crazy so I switched them for stock sizes after a month.
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