Was wondering whether I should mess around with my car's gear ratio. I'm pretty sure the mfgs have already done the R&D to make the ratio where there's a balance between gas mileage and usable power.
Now my question is what ratio will make the car last longer? For example.
My civic hits 3000rpms at 65mph, if I change the tire diamater, so that it will lower my rpms at 65mph I will gain mileage, but how much stress is the engine taking from this gain?
I always wondered at what rpms is the optimal driving range. Seems like I feel the engine lug around 1800rpms (red line is at 7200rpms).
Now my question is what ratio will make the car last longer? For example.
My civic hits 3000rpms at 65mph, if I change the tire diamater, so that it will lower my rpms at 65mph I will gain mileage, but how much stress is the engine taking from this gain?
I always wondered at what rpms is the optimal driving range. Seems like I feel the engine lug around 1800rpms (red line is at 7200rpms).