Carl 3 Report post Posted March 24, 2005 Right, gear ratios. Assumptions: Getrag 260 box has 5th gear ratio of 0.81, should be the same for 320i, 323i, and 325i. Tyre size used is 205/55r15 Diff ratio = RPM @ 100kph 3.05 = 2088 3.25 = 2225 3.45 = 2361 3.64 = 2492 3.73 = 2553 3.82 = 2615 3.91 = 2676 4.11 = 2813 4.27 = 2923 4.45 = 3046 Quote Share this post Link to post Share on other sites
petone 0 Report post Posted March 25, 2005 That wouldn't be too bad. Tane if you want to swap let me know. Quote Share this post Link to post Share on other sites