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Discussion Starter · #1 ·
I live in Los Angeles where the roads are just terrible. The XC90 sport ride quality is pretty punishing. I know that the XC90 sport has a stiffer suspension than the standard XC90, but I imagine that the 19" wheels don't help. Has anyone considered reducing the tire size on the sport to 18" or 17"? Does anyone know if the brake calipers on the sport are identical to the standard XC90?<p>I would have gotten the standard XC90, but the sport seats were so much more comfortable.<p>As Jeremy Clarkson from Top Gear, who is on his third XC90 stated:<p>"Just don’t do what I’ve just done and buy the “sport” version. Because fitting an XC90 with hard suspension and chunky alloy wheels may make it look good but it will ruin the ride. I’ve been in more comfortable jet fighters."<p>In the end he still loves it:<p>"Other versions, though, are just epic. People think this car has become such a common sight on the road because it is part of the private school uniform. That may be so. But there’s another, bigger reason. It is by far the best of all the school-run-mobiles because there really is room for seven people, 14 legs and two dogs in the boot as well. No other car maker — and this is strange — has managed to pull off a similar trick without ending up with a bus. "
 

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L.A. has terrible roads???<p>Bwahahahhahahahahhaa! Hahahhahahahha! You cannot fathom the roads here are like if you think your roads are bad. I'm sorry, but that was just too funny.
 

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Re: XC90 Sport Rough Ride (kahuna)

The ride quality improved on my Sport when I replaced the Pirelliswith Michelin Latitudes.<p>Could be worse, you could have the new 20 inch wheels!<br>
 

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Re: XC90 Sport Rough Ride (kahuna)

Having both the r-design XC90, as well as the R wagon, I hear ya on the jittery ride. That's a funny post about the roads up North. I bet the frost heaves explode the roads horribly up there.<p>Anyway, with respect to the wheels, I don't know what'll fit but I can relate that the wheel size made a big difference for the jittery ride in the R sedans & wagons. Huge difference between the standard 17 and then what people reported when they moved up even 1" to the 18. There was a much more subtle problem with the R, though, and it might relate to the XC90 so here's something to think about...<p>When Volvo designers decided to stiffen the suspension on the S60 & V70 R's, to give it a more sporty feel, they did so by increasing the compression damping. The effect of that, of course, is that the impacts you'd like to have absorbed by the spring in the suspension is instead hammered through the stiffened shock damper into the vehicle frame. The spring doesn't have as much of an opportunity to feel the full force of the blow; The driver and car take the punishment.<p>SO, what needs to be done is to lower the compression damping and stiffen the springs. You don't want to only lower the compression damping because you don't want the suspension to be mushy and bottom out which it would be more likely to do without the shock's compression damping helping out. You need to put in stiffer springs to compensate. It'll result in an infinitely better ride anyway, as long as the mechanic can figure his butt from a nut. I know the engineering of it, but I don't know the specifics when it comes to what's available and if the regular XC90 shocks might even fit the bill.<p>If you can locate a mechanic who knows just a little bit more than average then he should be able to set you up with a suitable shock & spring setup that'll behave infinitely better. <p>Of course, this will void any part of the suspension warranty you have left, but think of the money you'll save on dental bills. <p>Beyond that, keep a close eye on tire pressure. The R's had a bunch of bubbles that were being attributed to the Pirelli tires. I think it was only partly that but also that some folks were hitting potholes with underinflated low-profile tires.<p>As always, YMMV. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0">
 

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Discussion Starter · #5 ·
Extremely helpful. Thank you. I started with a simple seat cushion, will move on to the 17" wheels, but boy, the suspension route is a bit daunting.
 

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Re: (Pinstripe)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Pinstripe</b> »</i></TD></TR><TR><TD CLASS="quote">L.A. has terrible roads???<p>Bwahahahhahahahahhaa! Hahahhahahahha! You cannot fathom the roads here are like if you think your roads are bad. I'm sorry, but that was just too funny.</TD></TR></TABLE><p>I almost choked while I was reading this, too! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <p>I can imagine...I am used to Pennsylvania and Illinois roads so driving in LA or anywhere in Southern California feels like driving on velvet rugs! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0">
 

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Re: XC90 Sport Rough Ride (kahuna)

I just traded in a 2.5T XC90 for a V8 Sport. The Sport does have a firmer ride, but I would not call ir rough or harsh. In fact, the Sport rides better than the 2.5T did with the OEM Michellin Synchrones. After switching to Nokians , the 2.5T ride was much softer (but turn in and handling took a hit). <p>I actually like the ride of the Sport as it allows the XC90 to corner much better. And believe me, the roads here in the rust belt are about as bad as they get.
 

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Re: XC90 Sport Rough Ride (ChicagoT5)

I have a 2008 XC90 V8 Executive with the 19" wheels and the ride most certainly is NOT harsh. The 19" ride better than the 18" Atlantis that my 2.5T had and the 17" Neptunes that my 3.2 had. <p>Check tire pressures and tire wear first before blaming it on the wheel/tire setup.
 
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