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Discussion Starter · #1 ·
I went for a road trip shrotly after I switched from my Dunlop Wintersport M3's to my old PS2s with 5K miles on them. I rotated the PS2s front to back when I made the switch. The side-hop was terrible on the highway, even in sport. Much worse than ever. I just checked with a tire-gauge and have inner tread depth on the rears of 5/32 and 6/32 in the middle and 7/32 on the outside. Wear is even on the fronts.

Possible indication of improper toe-in alignment? When I got the bushing fix I asked the shop foreman to make sure they did the R specific toe-in, but I never saw the alignment spec sheet. Should I spring a hundred bucks for a new alignment just to be sure before my next road trip in a couple of weeks? At this rate I will chew threw the PS2s in 10K miles!
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (vizwiz)

Quote, originally posted by vizwiz »
Should I spring a hundred bucks for a new alignment just to be sure before my next road trip in a couple of weeks? At this rate I will chew threw the PS2s in 10K miles!

Hmmm....$100 alignment or chew up PS2's at $250/each. Do you really need to ask this question?

I would go back to the dealer and ask for the alignment specs. IMO, it sounds more like camber than toe.
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (MagoonR)

I'd rebalance as well. Could be this too...
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (Short Circuit)

Quote, originally posted by Short Circuit »
I'd rebalance as well. Could be this too...
No, it cannot

I also don't think the toe would do it unless it was SO far off it would be rediculous.
CAMBER for the most part wears out tires
Which now were worn, the fronts or the rears?
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (vizwiz)

So the INNERS were worn on the front, quite odd. Every R I've seen has the OUTER fronts worn after 6K miles.
You were quite out of alignment
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (vizwiz)

You can get an indication of a camber problem by simply sighting along the side of the car. You can see if there's a gross difference between front and rear by kneeling down and eyeballing the wheels, like this...


Shouldn't be too much difference front to rear and should be the same side-to-side.
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (vizwiz)

just go back to the PZero with a GOOD tirepressure and then all the magic of "new PS wow amazing compared to the shhhtttt worned down pzero...ARE amazing" hocus pocus ... new tires are ALWAYS amazing...even new PS compared to worned down PZero's
just my 2 €'s


PS
PZero is still the ONLY tire approved for the R
-> You CAN'T order a different tire OF-FACTORY

and like the real sport, you must be stupid to put something else under her...the chassis is set for PZero...the SW that is
..blablablabla...sissies.....
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (JRL)

Quote, originally posted by JRL »

No, it cannot

I also don't think the toe would do it unless it was SO far off it would be rediculous.
CAMBER for the most part wears out tires
Which now were worn, the fronts or the rears?
It is possible to get the alignment so far out of spec from just driving around - I think the S.F. bay area roads win the award for being in the worst condition after all of the rain we had this winter. All of my cars needed the alignment reset to varying degrees this year. I am just glad that I didn't have to replace any tires/wheels from the potholes (some were better described as sinkholes).
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (JRL)

Quote, originally posted by JRL »
Every R I've seen has the OUTER fronts worn after 6K miles.

wonder why? you US-fellows are too frigin' low on tire-pressure!!!!!!!!!!!!!!
 

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Discussion Starter · #13 ·
Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (JARMO)

Quote, originally posted by JARMO »


wonder why? you US-fellows are too frigin' low on tire-pressure!!!!!!!!!!!!!!

38psi is too low? I'm wondering if it was too high and what caused the uneven wear?
 

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Discussion Starter · #14 ·
Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (vizwiz)

Shelled out $159 for an alignment today to the latest specs. The car was actually nominally within spec, only minor adjustments were needed. Something else must have caused the increased inner wear up front? I am guessing that when I rotated the fronts to the back the uneven tire wear on them caused the increased squirreling problems.

Which probably means that I am stuck with the problem until I get a new set of rubbers. :sad: $1K for a set of PS2s that I am unhappy with after only 7K miles...


They recalibrated the SUM while it was there (no charge) and it does seem slightly better for around time driving, but I won't know for sure until I get out on the highway for a road trip next week.
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (vizwiz)

I've said this before (many times now), these tires have to be rotated every 4 to 5K miles. SOONER, every 3500 to 4000 miles or less, if you have lowering springs.
 

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Discussion Starter · #16 ·
Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (JRL)

Quote, originally posted by JRL »
I've said this before (many times now), these tires have to be rotated every 4 to 5K miles. SOONER, every 3500 to 4000 miles or less, if you have lowering springs.

Were you also saying (many times now) NOT to run your tires at 38+ PSI?
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (vizwiz)

Quote, originally posted by vizwiz »


Were you also saying (many times now) NOT to run your tires at 38+ PSI?
Yes, but that was/is for ride quaility, not for tire wear. The difference between 36 and 38 is insignificant in terms of tire wear
 

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Discussion Starter · #18 ·
Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (JRL)

Quote, originally posted by JRL »

Yes, but that was/is for ride quaility, not for tire wear. The difference between 36 and 38 is insignificant in terms of tire wear

I think the question we're dancing around is what caused the inner tire wear on the fronts? Is it running at 38 PSI? Isn't the volvo spec something like 32?
 

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Re: Increased Side Hop + Inner Tire Wear == Alignment Needed? (vizwiz)

No
Above average tire pressure will wear out the MIDDLE of the tire NOT the inner edge and besides 38 lbs is not abnormally high at all
Were these tires ever on the rear of your car?
If not, the only thing that can wear the inside is excessive negative camber (adjustable on the front, to a point) or a way off toe out setting
 
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