Interesting... But, few important points to notice:
1. Differently from other games, rFactor does not use horizontal FOV, but vertical!!!
So, what you find with this tutorial, is applicable ONLY to rF. To find the horizontal FOV, you should either enter your monitor width in the calculator or use this other tutorial:http://www.digital-flight.com/FOV/FOV_f ... factor.htm
2. To be able to load a different FOV for each mod, use the rFactor Mod Launcher:http://www.rfactorcentral.com/detail.cf ... 20Launcher