my car currently has 215/75/14 with original hubcaps. my plan was to switch to SSII and 225/70/14

below is a cut and paste from a tire calculator.. it doesn't seem like much of a noticeable difference.. Is it worth switching?





Side by side Overlay

Current Tire New Tire Difference Diameter inches (mm) 26.7 (678.1) 26.4 (670.6) -0.3 (-7.5) -1.1% Width inches (mm) 8.46 (215) 8.86 (225) 0.39 (10) 4.7% Circum. inches (mm) 83.87 (2130.31) 82.94 (2106.75) -0.93 (-23.56) -1.1% Sidewall Height inches (mm) 6.35 (161.25) 6.2 (157.5) -0.15 (-3.75) -2.3% Revolutions per mile (km) 755.45 (469.41) 763.9 (474.66) 8.45 (5.25) 1.1% Forum embed code (copy & paste in your post):


Speedometer Difference Speedo Reading Actual Speed 20 mph (32.19 km/h)19.78 mph (31.83 km/h)25 mph (40.23 km/h)24.72 mph (39.79 km/h)30 mph (48.28 km/h)29.67 mph (47.75 km/h)35 mph (56.33 km/h)34.61 mph (55.7 km/h)40 mph (64.37 km/h)39.56 mph (63.66 km/h)45 mph (72.42 km/h)44.5 mph (71.62 km/h)50 mph (80.47 km/h)49.45 mph (79.58 km/h)55 mph (88.51 km/h)54.39 mph (87.54 km/h)60 mph (96.56 km/h)59.34 mph (95.49 km/h)65 mph (104.61 km/h)64.28 mph (103.45 km/h)

 

I'd look for 15" wheels, your limited in tire sizes for the 14's. If you like the look of the diameter of the tire's you have on there now, the 3/10th's of an in gain will not effect anything, if thats your question.

 

Very nice on the homework/mathwork. I guess my only question is, how old are your 215/75/14? Bare in mind that most manufacturers suggest 8-10 years on tires. Also 14" rubber is getting tougher to get, as far RWL tires in that size P225/70/14 your down to three choices!

Pat

 

the tires are fine, looks like at least 60% tread left,
as far as tires If I go 225/70/14 I am going to go with BFG radial T/A

 

The fact that there is 60% tread left is irrelevant. You were asked now OLD are the tires. Read the date code on the tire. If it is 8 years old or more toss it out & repalce.

14" tires are a waste of good rubber. Buy some 15" rims & enjoy the looks & handling that only a 15" tire will afford.

 

Not that you may have seen the tire/wheel combo before but here it is, exact per your specs.

 

So you are running 225-70-14's

 

Yes sir! I used to have Uniroyal tiger paws RWL the same size but they are NLA. Major branded left are BFG T/A, Cooper Cobras and Firestone Firehawks indy 500

Dollar wise BFG's are in the middle, quiet ride good side profile but not so great looking tread pattern.

Pat

 

X2

find a nice set of 15"SS3s i roll 255-60-15s on SS3s very happy w the ride handling and look.

 

Sorry to Highjack a post.

I have a super clean set of 14" stock wheels, original to the car. I was hoping to keep these wheels on and then maybe get some aftermarkets, cragers with tires a little larger and wider once i get the car fixed up. I currently have the 14" stock and 15" keystone wheels for the car with rotten tires (haven't been driven for 20+years).

I am trying to decide between 225-70-14 all around or 245-60-14 rear/235-60-14 front.

I like the size of the 70, but the width looks better for the 60.