Choosing tires

is always an interesting challenge.  The best sizes (that match the original cars' profiles) do not offer many high-performance choices.  With 15" wheels (7.5" and 9.5" wide), we recommend:

Front: 235/60-15 (245/60-15 after chassis 731)
Rear: 295/50-15

Other possible sizes (including 16" and 17" rims) are listed here.

Some Tire Sources

• Tire Rack
• Performance Plus
• 1010 Tires
• Sasco Sports (Avon)
  

Technical information

• Sizes, speed ratings, etc. from 1010 Tire

Speed Ratings

In the USA, since you will never excede the legal speed limit , speed ratings shouldn't be a primary factor in tire choice.  But, it's nice to have a little safety factor anyway.  As you search through the tire distributors' offerings, you will find that only Avon tires have a V speed rating.  All the others are rated T.  

Currently the available brands that offer both sizes include Avon FIA Rally CR6ZZ DOT (V-rated), BF Goodrich Radial T/As,  Firestone Firehawks, and Goodyear Eagle GT IIs.

There may be others, so it never hurts to search around.

Speed ratings

S = 112 MPH, 180km/h
T = 118 MPH, 190km/h
U = 124 MPH, 200km/h
H = 130 MPH, 210km/h
V = 149 MPH, 240km/h
Z = 149 MPH, 240km/h and over
W = 168 MPH, 270km/h
Y = 186 MPH, 300km/h