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Discussion Starter · #1 ·
I want to install a set of 18x8 wheels on a car that left the factory with Peg 17's. Brake clearance issues resolved, can anyone comment on whether the 18x8 wheels will induce any rubbing issues? Is it true that Volvo installs a small spacer block on the front control arms of cars shipped with 18's that it does not install on cars shipped with 17's?<p>Also, I've heard conflicting advice on tire sizing... 235/35-18 versus 235/40-18. Can anyone confirm the proper size to keep my speedo on track?<p>My apologies if this is all covered in a previous post - I couldn't find anything using the S/S search engine.<p>Thanks - Tryg
 

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Re: Considering 18x8 Wheels - Any Foreseeable Issues? (RainyS60R)

Since it looks like every car is different ride height wise, this will affect how much you will be rubbing. On my V, I have the stock 17s and rub at full lock. I have no doubt that it'll rub with the 18" Pegs without a small spacer.<p>Don't know anything about the small spacer block being different but there are different stering stops available from Volvo depending on application.<p>For 18s, it's 235/40/18 to maintain correct ratio.
 

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Re: Considering 18x8 Wheels - Any Foreseeable Issues? (RainyS60R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>RainyS60R</b> »</i></TD></TR><TR><TD CLASS="quote">I want to install a set of 18x8 wheels on a car that left the factory with Peg 17's. Brake clearance issues resolved, can anyone comment on whether the 18x8 wheels will induce any rubbing issues? Is it true that Volvo installs a small spacer block on the front control arms of cars shipped with 18's that it does not install on cars shipped with 17's?</TD></TR></TABLE><p>There may be some rubbing, but I only experienced very little and was hardly a factor considering the upgrade. My car originally came with 17's and I have the blocks, so no on the different configuration. Also, what little rubbing there is, is easiliy taken care with the addition of wheel spacers. I prefer 10mm up front and 15mm in the rear.<p><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote »</i></TD></TR><TR><TD CLASS="quote">Also, I've heard conflicting advice on tire sizing... 235/35-18 versus 235/40-18. Can anyone confirm the proper size to keep my speedo on track?</TD></TR></TABLE><p>Stick with the stock tire size, nothing to worry about with the speedo. BTW, you <i>know</i> when you are speeding <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0">.<p><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote »</i></TD></TR><TR><TD CLASS="quote">My apologies if this is all covered in a previous post - I couldn't find anything using the S/S search engine.<p>Thanks - Tryg</TD></TR></TABLE><p>No worries. The search function has been acting up over th past few days. Also, I don't think there is much info on the things you mention.<p>Kevin
 

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Re: Considering 18x8 Wheels - Any Foreseeable Issues? (mike_c70)

NO rubbing, lowered with 5mm spacers
 

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Re: Considering 18x8 Wheels - Any Foreseeable Issues? (RainyS60R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>RainyS60R</b> »</i></TD></TR><TR><TD CLASS="quote">Also, I've heard conflicting advice on tire sizing... 235/35-18 versus 235/40-18. Can anyone confirm the proper size to keep my speedo on track?</TD></TR></TABLE><p>This is a great site...<br><A HREF="http://www.miata.net/garage/tirecalcold.html" TARGET="_blank">http://www.miata.net/garage/tirecalcold.html</A><p>And it clearly shows that the diameter of a 235/45x17 and a 235/40x18 are less than .1" different (in fact, both their radius rounds out to 12.7")<p>So, when you speedometer reads 60 mph, you are actually traveling 60.2 mph. <p>Same pattern if you go 19", 235/35x19 or 20", 235/30x20. Keeps same tire diameter.
 

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Discussion Starter · #7 ·
Re: Considering 18x8 Wheels - Any Foreseeable Issues? ("R" Kelly)

"R" Kelly, that tire calculator is a great resource. Thanks to all for the input. The wheels I am considering are Ronal R41s. Not the lightest wheel out there, but a few pounds less than the stock Pegs. I wonder if I would feel a difference... no final decision as of yet.<p>- Tryg
 

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Re: Considering 18x8 Wheels - Any Foreseeable Issues? (RainyS60R)

Check the wheel classifieds. Scott Hart is selling those exact wheels.
 
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