Stock rim tire sizes

[Alex 240Z]

I believe stock rims are 5 1/2" what sized tires can be used on these rims can 205/14 be used and what is the best looking tires to make it look stock with the stock hub cap and for good road performance.

[Bambikiller240]

OEM Steel Wheels or Mags? If Mags, are they the correct offset?

On my car I can use 195/70 X 14 tires, or 205/60 X 14's. If I use 205/70 X 14 tires they rub the rear fenders a bit.

Your mileage may vary.

PS, you might try a search of the site. I believe that OEM steel wheels were 5" wide, but I'm not positive. It has been discussed befroe though.

[Alex 240Z]

They are original steel rims not the mags !!!!! But I will definitely search the site !!!!!

[Bambikiller240]

Yeah, I realized that at the end of my post.

I found the info below on the www.Zhome.com website. Didn't find a reference to 5.5" wheels

4.5J-14 steel wheels with 175 SR 14 tires on first Z's brought to USA, then

Starting with VIN HLS30 046000 (mfg 10/71) 5 Inch Wide Wheels were made Standard

[26th-Z]

I confirm that info, Carl.

[Bleach]

175 SR 14 is basically 175/80/14 that matches the stock size of 195/70/14 as well.

If you want to run 205 width, then 205/65/14 is the correct sidewall height.

[Zrush]

The "Vintage" 1972 240Z has Toyo's, 175 R14 88S. What does 88S mean? An 80's series tire?

Vicky

[Bambikiller240]

175 SR 14 is basically 175/80/14 that matches the stock size of 195/70/14 as well.

If you want to run 205 width, then 205/65/14 is the correct sidewall height.

I don't know much about tire sizes, but how can a 175 tire be the same as a 195 ? ? ?

[Bleach]

It matches the overall outside diameter. (close enough) The wider the tread, the less percentage the sidewall is. These are suggestions to keep your speedometer accurate.

175-80-14

195-70-14

205-65-14

[jimbo99]

I used on my 260Z after reading in Wick Humble’s book and researching the Z-Car CD-ROM, 5 – JX14 as they seemed to be the standard. The wheels should be stamped either TOPY MM/YY 4 ½ - J14 or 5 - J14. The Z-Car CD-ROM list them as 4 ½ – JX14 (P/N: 40100-E4400) or 5 – JX14 (P/N 40300-E4400). Standard tire size is 175/70HR-14 standard with 195/70HR-14 a later option but, 185/70HR-14 90Hwill work as well. The H is the speed rating

After sandblasting, paint on 240 rims had matt black face and silver on the reverse later rims not sure when were matt black faces with gloss black.

Info from Tire Rack website

Using a P195/60R15 87S tire size as an example, the 87S at the end of the size represents the tire's service description. A service description identifies the tire's load index and speed rating. Service Descriptions are required on all speed rated (except for Z-speed rated) tires manufactured since 1991.

The first two digits (87S) represent the tire's load index and are followed by a single letter (87S) identifying the tire's speed rating.

Load Index

P195/60R15 87S - The load index (87) is the tire size's assigned numerical value used to compare relative load carrying capabilities. In the case of our example the 87 identifies the tires ability to carry approximately 1,201 pounds.

The higher the tire's load index number, the greater its load carrying capacity.

89 = 1,279 pounds

88 = 1,235 pounds

87 = 1,201 pounds

86 = 1,168 pounds

85 = 1,135 pounds

Speed Rating

Beginning in 1991, the speed symbol denoting a fixed maximum speed capability of new tires must be shown only in the speed rating portion of the tire's service description, such as 225/50R16 89S. The most common tire speed rating symbols, maximum speeds and typical applications are shown below:

N 87 mph 140 km/h Temporary Spare Tires

P 93 mph 150 km/h

Q 99 mph 160 km/h Studless & Studdable Winter Tires

R 106 mph 170 km/h H.D. Light Truck Tires

S 112 mph 180 km/h Family Sedans & Vans

T 118 mph 190 km/h Family Sedans & Vans

U 124 mph 200 km/h

H 130 mph 210 km/h Sport Sedans & Coupes

V 149 mph 240 km/h Sport Sedans, Coupes & Sports Cars

Info condensed from Tire Racks website.

Jim Atkinson

1974 260Z - RLS30-020697 (01/74)

[Zrush]

Thanks Jim. I find that information very interesting. I know most people could care less about tires but that's all that's between you and the road.

Naturally the "Z" rated tire is for high performance

Vicky