Tire advice?

[MurrayPeterson]

At events like Packwood, my AP1's higher gearing and lower torque let the AP2's eat me alive.

I normally run 225/50R16 tires, which on Dunlops works out to an overall diameter of 24.1 inches.

Wondering if I should go to a 205/45R16, which could lower my diameter to 23.2 inches.  The change works out to a 3.7% "improvement" to my effective gear ratio.  But it is 205 instead of 225 width, with an unknown amount of change to the grip level.

Anyone have thoughts on this?

[Tom M]

use the -1 rule allowed in street and switch to 15 inch wheels and run 225 in that size

[MurrayPeterson]

Should have mentioned that 15 inch wheels won't fit on my car (the front brakes are too big).

[Terry Johns]

Get rid of the big brakes they slow you down too much. 

[Reijo]

15x7.5 wheels ... available?   Not sure what street tires in 15's are available either tho' ... Hoosiers though but no longer for street ...

R

[Terry Johns]

For those of you who run 13 inch rims, I can supply some AVON Caterham tires, amazing grip, 20 ware rate. http://www.caterhamparts.co.uk/product.php?id_product=4251