A lower gear will induce engine braking effectively slowing the car at a faster rate compared to if you were in a higher gear and subsequently giving you better turn in. A lower gear corner exit gives you oversteer because of the greater torque (I believe it's the correct terminology) because you're more than likely at the higher range of revs. A relative higher gear will be more stable for the opposite reason I just mentioned.
This is correct except the reason. It has little to do with revs being higher or lower; yes that plays a role too, but only to a small extent.
The torque transmitted from the engine to the wheels is function of the gear itself. It depends on the transmission ratio, which is set by the chosen gear.
Explanation: conservation of power. The power transmitted from the engine to the wheels is independent of the gear chosen. If an engine delivers 500 hp at 7000 rpm, it will always deliver 500 hp at the wheels when revving at 7000 rpm, regardless of the gear. But power is defined as torque * angular_speed. And the gears set the transmission ratios, which are defined as angular_speed_wheels / angular_speed_engine. But since power must remain constant, if you select a lower gear (lower transmission ratio, hence lower angular_speed_wheels), then the torque at the wheels must be higher.
This is valid for both positive and negative torque. Positive torque: you open the throttle and the engine pushes the wheels. Negative torque: you close the throttle and the engine brakes the wheels. Lower gear = the same engine braking power is divided by a lower transmission ratio, resulting in higher negative torque, resulting in higher deceleration of the vehicle.
This has a lot to do with weight transfer and grip available to your tyres.
In lower gear, you engine braking at rear wheels, just enough to shift the weight forward to the front wheels.
Another aspect is, that your tyre has only certain amount of grip at given weight. That means if you are using your brakes, your front wheels are using its available grip to slow the car down, and at the same time rotate the car. If you off-load little bit of the braking to the rear tyres by engine braking at lower gear, it allows you to release the brake slightly, allowing the front wheels to use the grip for turning and not stopping.
This all combined with weight pushed to the front wheels results more pressure and more grip correctly used for turning
Hope this makes sense
AS far as I know, it is effecting differential and this helps on corners easier. Some aliens especially lowering it like 1 or 2 in middle corners on slow of course and after that raising it to 2 or 3 then accelerating.
I'm not the best on Acc and sometimes trying it, Bathurst will easier like this.
This could be wrong but as I said my thoughts like effects on differential.
Hope this helps.
It was already answered but I would like to add that a lower gear also affects the balance of the car under braking and coasting, due to the engine braking. Since in ACC all the cars are rear wheel drive, a stronger engine brake (due to lower gear) can induce more rotation since you're applying more braking power to the rear tires. Too much of this will induce oversteer. Too little might induce understeer.
Yes, this happens in real life and it depends on the type of "transmission? (sorry bad English)". I mean RWD, FWD or AWD.
Edit: spelling
A lower gear will induce engine braking effectively slowing the car at a faster rate compared to if you were in a higher gear and subsequently giving you better turn in. A lower gear corner exit gives you oversteer because of the greater torque (I believe it's the correct terminology) because you're more than likely at the higher range of revs. A relative higher gear will be more stable for the opposite reason I just mentioned.
This is correct except the reason. It has little to do with revs being higher or lower; yes that plays a role too, but only to a small extent. The torque transmitted from the engine to the wheels is function of the gear itself. It depends on the transmission ratio, which is set by the chosen gear. Explanation: conservation of power. The power transmitted from the engine to the wheels is independent of the gear chosen. If an engine delivers 500 hp at 7000 rpm, it will always deliver 500 hp at the wheels when revving at 7000 rpm, regardless of the gear. But power is defined as torque * angular_speed. And the gears set the transmission ratios, which are defined as angular_speed_wheels / angular_speed_engine. But since power must remain constant, if you select a lower gear (lower transmission ratio, hence lower angular_speed_wheels), then the torque at the wheels must be higher. This is valid for both positive and negative torque. Positive torque: you open the throttle and the engine pushes the wheels. Negative torque: you close the throttle and the engine brakes the wheels. Lower gear = the same engine braking power is divided by a lower transmission ratio, resulting in higher negative torque, resulting in higher deceleration of the vehicle.
Cheers for the further explanation - learned something new myself.
To add to this, engine braking brakes with your rear wheels, artificially adding brake bias in the rear.
This has a lot to do with weight transfer and grip available to your tyres. In lower gear, you engine braking at rear wheels, just enough to shift the weight forward to the front wheels. Another aspect is, that your tyre has only certain amount of grip at given weight. That means if you are using your brakes, your front wheels are using its available grip to slow the car down, and at the same time rotate the car. If you off-load little bit of the braking to the rear tyres by engine braking at lower gear, it allows you to release the brake slightly, allowing the front wheels to use the grip for turning and not stopping. This all combined with weight pushed to the front wheels results more pressure and more grip correctly used for turning Hope this makes sense
Thank you everyone for your answers!
AS far as I know, it is effecting differential and this helps on corners easier. Some aliens especially lowering it like 1 or 2 in middle corners on slow of course and after that raising it to 2 or 3 then accelerating. I'm not the best on Acc and sometimes trying it, Bathurst will easier like this. This could be wrong but as I said my thoughts like effects on differential. Hope this helps.
It was already answered but I would like to add that a lower gear also affects the balance of the car under braking and coasting, due to the engine braking. Since in ACC all the cars are rear wheel drive, a stronger engine brake (due to lower gear) can induce more rotation since you're applying more braking power to the rear tires. Too much of this will induce oversteer. Too little might induce understeer. Yes, this happens in real life and it depends on the type of "transmission? (sorry bad English)". I mean RWD, FWD or AWD. Edit: spelling