: Tires,Tires,Tires...



Subsailor613
09-29-12, 10:19 PM
Part 1:
Everything you wanted to know about tires, but didn't have anyone to ask !
From Consumer Reports. :welcome::cheers::2thumbs:

NOTE: because of the restrictions on jpg's they are sideways,1024X768
also it will NOT let me load Part 2 ! Sorry !

mckellyb
09-30-12, 01:19 PM
Consumer Reports should stick to toasters.

(no offense to the OP)

For the STS, if you live where it never snows, Continental DWS are amazing.

If you do live where having snows are a must, then I'd very seriously consider Conti DWs on summer wheels with a dedicated set of snows on separate wheels. Though...I can't imagine the potential extra grip of the DWs is worth the treadwear tradeoff over the DWSs.

Ludacrisvp
09-30-12, 01:29 PM
You started me thinking about tires...
Wont need any for a while as the car came with new tires, but I was wondering about going wider with them when that time comes.

My car has the staggered setup on it from the factory.
The Front are P235/50R18 ... Rear are P255/45R18
(the V uses P255/45R18 front P275/40R19 rear)


Current:
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
P235/50R18 4.6in 13.6in 27.3in 85.6in 740 0.0%
P255/45R18 4.5in 13.5in 27.0in 84.9in 746 -0.8%

V:
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
P255/45R18 4.5in 13.5in 27.0in 84.9in 746 0.0%
P275/40R19 4.3in 13.8in 27.7in 86.9in 729 2.3%

Proposed new stagger:
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
P255/45R18 4.5in 13.5in 27.0in 84.9in 746 0.0%
P285/40R18 4.5in 13.5in 27.0in 84.7in 748 -0.2%

Otherwise to go even wider in the rear (not sure if such a tire exists though or what crazy cost it would have) just playing with the numbers.
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
P255/45R18 4.5in 13.5in 27.0in 84.9in 746 0.0%
P325/35R18 4.5in 13.5in 27.0in 84.7in 748 -0.3%

This would keep the staggered look and give a wider setup overall with slightly wider rear tires than the V has.
Basically 20mm wider in front and 0.1 inches shorter sidewall, and 30mm wider in rear with matching sidewall to the front and to OEM.

So knowing that the V uses my rear tires on the front and other non-V cars have done the same I know they will fit on the front fine.
The question is will the 285 rear fit without rubbing on anything? (keeping in mind my fenders have already been rolled in)
Would it be crazy to go to that size on all 4s?

EDIT: the P325/35R18 doesn't seem to exist on tirerack.com so its likely not a real size

EDIT2: Now thinking about rim width needed... for the 285/40R18 they need to be on a 9.5 - 11 inch wide rim, I bet the stock 18 isn't this wide.
So that will likely limit me to the 255/45R18 all around when the time comes for new tires. Unless someone knows how wide the rim is?

Subsailor613
09-30-12, 04:21 PM
Part 2 HAS the snow tires, sorry, I cannot upload it, as I have reached my limit !
If you car has a QF8 RPO code, then it is 18 X 8, stock from the factory.
Have fun, Good Luck.

curtc
09-30-12, 05:35 PM
I will attest to the Conti DWS being an AMAZING tire...I bought the DWS as opposed to the DW because of the 50k tread warranty, DW comes with no warranty. Bought them for my CTS and the STS came with a set too, previous owner had good taste :)

I run dedicated winter tires (Cooper Weather-Master ST/2) so can't attest to the DWS winter performance.

mckellyb
09-30-12, 07:11 PM
I will attest to the Conti DWS being an AMAZING tire...I bought the DWS as opposed to the DW because of the 50k tread warranty, DW comes with no warranty. Bought them for my CTS and the STS came with a set too, previous owner had good taste :)

I run dedicated winter tires (Cooper Weather-Master ST/2) so can't attest to the DWS winter performance.

While I have no need for winter tires, Fort Worth, and all, I will get another set of Conti DWSs. These were put on by the PO, and it is the perfect choice.

I thought I might not get 40K out of them, but I may just get 46K-47K out of them, which is outstanding, based on how I treated them the first few months of ownership.

At least with a limited-slip diff, they wore evenly, from side-to-side.

:D

kcaughron
09-30-12, 08:16 PM
The new to us 2010 1SC came with a brand new set of General GMAX AS-03. As General is now a part of Continental it is obviuous to me they are sharing some technology. The tires are super quite and I can say with 100% honesty they are sticky, sticky, sticky. Sidewalls seem to roll a bit, could be helped with air pressures. Just got back from a weekend in Houston and as I said before the tires were super quite on the interstate. Check em out. For the money it's another choice. Later

dannyquest
09-30-12, 10:12 PM
Ludacrisvp, I have a 06 STS with staggerd tires. Front are 235-50-18, rear are 255-45-18. All four rims are 8". Tire Rack rep stated that 255-45-18 can be installed on front & rear. Danny

EChas3
09-30-12, 10:32 PM
It's that time of year again.

To each their own!