Thanks Kev, I also asked the question on ClubGTI and got a slightly different answer again. 1st 3.300 2nd 1.944 3rd 1.308 4th 1.034 5th 0.838 FD 3.389 I think like you say the best bet is to find the 3 digit code and ask someone who can tell me, i'll probably ask Vince at Stealth on the 18th. I don't need to know right now anyway, it's for a uni project after xmas, i'll be calculating the theoretical 0-60mph acceleration of my VR in Matlab Simulink If anyone's interested this is similar to what i'll be doing... http://www.tech.plym.ac.uk/sme/mech331/fuel4.htm That is for the lecturer's p