Blatman Posted October 29, 2001 Share Posted October 29, 2001 4 or 5 speed box, and what are you trying to achieve? What is the car going to be used for? A 195/50/15 would have a similar rolling circumference to 185/70/13, so by fitting ***/60/13's you have lowered (or is it raised, I can never remember) the gearing slightly, but not by a huge amount. Quote Link to comment Share on other sites More sharing options...
peterg Posted October 29, 2001 Share Posted October 29, 2001 there is a program on Dave Andrews website which will allow you to play with gear ratios and tyre sizes until you get an answer you're happy with ...it's at http://hometown.aol.com/dvandrews/index.htm Quote Link to comment Share on other sites More sharing options...
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