Can I run 295/35/18's?
#1
Can I run 295/35/18's?
Anyone running 295/35's*instead of 295/30's? Any problems running these taller profile tires? Thank in advance. Sorry for such a noob question fella's.
#3
Bummer deal...
#4
Maybe some others have tried it and not had issues, but I believe the difference in diameter between front and rear might be great enough to cause issues.
What's your concern? Ride quality? Wheel damage?
What's your concern? Ride quality? Wheel damage?
#5
NOPE! Way too tall. The rule of thumb is +/- 3% of OEM specs. OEM 18" rims run 265/35/18; diameter 25.30". Your current 295/30/18; diameter 24.96" is definitely within specs. A 35 section height will place you at diameter 26.12" or 3.24% over OEM specs. And, the latter would play havoc with the fore-mentioned as well as the ABS system.
#6
I really like the Nitto Invo tires, the ride quality and road noise of those particular tires are awesome... but they only come in 295/35/18.
#7
NOPE! Way too tall. The rule of thumb is +/- 3% of OEM specs. OEM 18" rims run 265/35/18; diameter 25.30". Your current 295/30/18; diameter 24.96" is definitely within specs. A 35 section height will place you at diameter 26.12" or 3.24% over OEM specs. And, the latter would play havoc with the fore-mentioned as well as the ABS system.
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#8
Tires
I wouldn't chance it...After getting 2 rear tires same size my PSM system was wacked out for about a month..Ie. Coming off a freeway ramp the system would start breaking itself or felt like down shifting to compensate for what I was told was the difference in tread. Front old to rear new. Changed up the tire pressure and it corrected the problem. Scary though when you're flying around a ramp and your car decides to apply the brakes or down shift feeling..
#9
I wouldn't chance it...After getting 2 rear tires same size my PSM system was wacked out for about a month..Ie. Coming off a freeway ramp the system would start breaking itself or felt like down shifting to compensate for what I was told was the difference in tread. Front old to rear new. Changed up the tire pressure and it corrected the problem. Scary though when you're flying around a ramp and your car decides to apply the brakes or down shift feeling..
#10
The good news is that there are many good tire choices out there in a wide range of choices. I don't think you can go wrong with a set of Michelin PS2s, but they are expensive. I ran a set of Sumitomo HRT Z III tires on my car, and they were pretty darn good for the money.
#11
Anyone running 295/35's*instead of 295/30's? Any problems running these taller profile tires?
#13
what are you disagreeing with?
Last edited by kpl; 04-23-2012 at 04:48 PM.
#14
However, Porsche doesn't allow this. The largest wheel diameter recommended for the 996 by Porsche is 18".
#15
With a C4 or C4S the critical factor is the differential between the front and rear tires. You can do this comparison with the specs on Tirerack. It might be possible to run the 295/35-18 with a larger size front tire, like a 235/40-18. I have the calculation on my computer some where, but not with me right now.