On this page you can calculate this quite easily. http://www.ford-probe-driver.de/…/cont_germitteberechung.html I have read in other forums again such a nonsense…100 hp and 230 km/h -exactly! Well, it is really interesting to see how exactly/unjust such a tacho can be. To enter the translation ratio always take the american spelling. The 323 V6 has e.g. the following translation ratios 1.Gang 3.31 2.Gang 1.83 3.Gang 1.31 4.Gang 1.03 5 .Gang 0.80 Finale Ü. (Axis) 4.39 Asks itself only how exactly the rev indicator of a car is. -Would be really nice if mine could create the 7500 rpm. Have fun looking MfG Sefre P.S.: The technical data can be found on the Mazda homepage under me&my Mazda.