How do I add engine options to a mod?

[TSGaming_swe]

So I simply want to make engine options for a Valmet I have, and I am sorta a newbie at modding, but if someone could give some sort of step-by-step or a tutorial I'd be really glad!

[dakotatech]

Best thing you can do is while you are at the shop find a vehicle that has engine options and then go to the game file data/vehicles/brand/model and look at the xml for how it is done. The torqueScale is the most important value, so find a model that has the HP rating you want and use the value from that one in your xml. Happy modding.

[kinggorillakong]

This video was invaluable for me (not just because it goes into what goes into the mod xml for adding the options, but because it also has a link in the video description for a spreadsheet to use to ensure functioning values to use.

https://www.youtube.com/watch?v=FbGsChHjOFU

[LS09God]

Small tip for converting torquescale values to HP's:
Example1: Given torquescale is 0.4345. If you want to know roughly how many HP that is, you do this little calculation: 0.4345 / 0.0044 = 98.75 HP.
Example2: If you have an HP amount (let's say 98.75 HP) but don't know how much torquescale that is, you do the opposite: 98.75 * 0.0044 = 0.4345 Torque.

I used it since FS11 and it always seems to be real close to the real deal. Not perfect, but close....