tires on 5 stars
Member
Joined: Jun 2000
Posts: 322
Likes: 2
From: Sweaburg, ON Canada
Car: '85 IROC
Engine: 305
Transmission: T-5
235/60-15 is okay and gives very close to the stock 215/65-15 diameter. I've seen bigger, but they start to look "funny" like a NASCAR stocker because the sidewalls bulge too much on those 7" rims and probably roll around a lot under hard cornering.
Supreme Member
Joined: Aug 2001
Posts: 1,041
Likes: 0
From: Troy, MI, USA
I am running BFG Radial T/A's 235/60 R 15's on my stock 5 spoke 15 inchers. They look good, and fer the size and price, they are good tires. Oh, another thing - http://www.crownvic.net/tech/Handling.htm - It has has VERY interesting quote in it
Makes sense...makes ya think....
The tires are your only connection between the road and your vehicle. No one part of your car can influence handling more than tires. First lets put a hole in the old fiction tale that wide tires put more rubber on the road. When you put 34 pounds of air in a tire, you do not pull out a scale and weigh 34 pounds of air to pour into your tire. It means 34 pounds per square inch of pressure. No more and no less! The front and rear of our CV/GMs weigh about 2200 lbs and 1800 lbs respectfully. That would be 1100 lbs for each front tire and 900 lbs for each rear tire. 1100 lbs divided by 34 psi would be about 32 square inches. If your 225 tire is about 8.7" wide the contact patch would be about 3.7 inches long. 3.7" x 8.7" x 34psi = 1094lbs. Close for rounding off. A wider tire, say 10", would have a contact patch 3.4" long. Obviously you would have to reduce the square inches of rubber in contact with the road because of tread groves. All this math means one thing and that is, wide tires only change the contact patch shape. And yes, this does affect handling.
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LiquidBlue
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Dec 10, 2019 04:06 PM