Tire Size Question

[VanquisherRS5]

I'm currently running the 255/30/20s that come with the car stock. For the winter looking to keep the rims on the car but get a 255/35/20 tire with a bit more sidewall. Roads get nasty here in NJ during the winter months. Not lowered and don't plan on it. Anyone running this size? Issues?

[mossback]

Your best bet it take the 20" off and get a set of inexpensive 18" wheels and get snows for them in a 245\40-18.

I have blizzaks on mine, the 18" is the best performance size for the car and they look good too.

at over 400.00 a tire for Snows in the 20" size it justifies getting a wheel and tire setup.

[Huey52]

Excellent advice and I second the motion.

Your best bet it take the 20" off and get a set of inexpensive 18" wheels and get snows for them in a 245\40-18.

I have blizzaks on mine, the 18" is the best performance size for the car and they look good too.

at over 400.00 a tire for Snows in the 20" size it justifies getting a wheel and tire setup.

[bknewtype]

Your best bet it take the 20" off and get a set of inexpensive 18" wheels and get snows for them in a 245\40-18.

I have blizzaks on mine, the 18" is the best performance size for the car and they look good too.

at over 400.00 a tire for Snows in the 20" size it justifies getting a wheel and tire setup.

what would you recommend for the wheel specs for that tire size?

[mossback]

I am running 18x9 ET45 (offset) the 20" wheels have an offset of ET50,

Anything with at least a 45 to 50, you don't have to have 9" wide wheels, you run 8, 8.5" as long as the offset is high enough.

I use this setup as I run my car on the track with them too, and swap out the blizzaks with Trofeo R 265/35 18" in the summer.

Though you can run 255/40 18" just fine, I pushed the width a little and went 265, and the rubber is way cheaper than 20".

I think I paid 220 a tire for Bridgestone RE71R and same for Michelin Pilot Super Sports.

[VanquisherRS5]

Your best bet it take the 20" off and get a set of inexpensive 18" wheels and get snows for them in a 245\40-18.

I have blizzaks on mine, the 18" is the best performance size for the car and they look good too.

at over 400.00 a tire for Snows in the 20" size it justifies getting a wheel and tire setup.

Yeah seems that way. I found a set of all seasons Nitto Neo Gens 245/30/20 for 620 shipped and was debating just leaving them on the car for all time. Otherwise I can get a set from Tire rack and pick up in delaware 18x8s with CONTINENTAL WINTERCONTACT SI in 235/45R18. Little over a 1000 bucks which isn't bad since it includes all hardware to mount.

[allroader]

I just went to snows this past weekend. I had a set from my old VW MKVI R that are a little smaller.
18x8 Neuspeed RSe12 Light Weight Wheel @ 19 lbs wrapped in 225/40-18 Dunlop Wintersport 4D @ 21 lbs.

I have heard you can code different revs/mile in in vcds. Does anyone have a link on how to do this?

Tire Size Comparison
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
255/30-20 3.0in 13.0in 26.0in 81.8in 775 0.0%
225/40-18 3.5in 12.5in 25.1in 78.8in 804 -3.6%

[mossback]

Your 0 to 60 times just got a little faster. That would be interesting to type in a calibration number to keep the speedo accurate, I found some interesting reading regarding changing a multiplier in other VAG cars.

http://forums.ross-tech.com/showthre...ibration/page2


Not sure how it applies to our cars.