Hello, I’ve been for the past ~3 weeks researching all about how a realistic car transmission/gear box work. I’ve read many posts about this topic, but haven’t been able to come up with a full understanding on how to make it work on Roblox. I used 'How to Rig a Car" for the main framework of my vehicle, which only has a very simple engine system which i’m trying to expand from.

Some obstacles I have are:

- Where can you apply car gear ratios into?
- How do you calculate the moment a car needs to shift up/down when its automatic?
- How do you calculate engine RPM, and how does horsepower tie into it?
- How is torque calculated?
- Is there any constants which I need to make note off?

I’ve tried looking through free model scripts, but to no luck its either super complicated or not what i’m trying to get (*i’m looking at you A-Chassis*).

There is also almost no resources of tutorials on how to script a system which is simple to understand, and how it can be implemented in-game. All I find is mathematical formulas which might be useful, but I have no idea where I can implement them.

Any help will be greatly appreciated as to helping me further understand how cars work, and how it can be replicated on Roblox!