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nikitopo · 12-31-2014, 05:16 AM

We are not discussing about higher final drive ratio, but about shorter! For example 4.1 -> 4.5

It is not only about more shifts. It is that you have to work in higher gears. Post #91 mentions it. He was normally using 3rd gear on a specific track and after the change he had to use 4th gear. Overall timing was worst.

When you go from a 4.1 to a 4.5 drive ratio you have a 10% increase, but when you're using the 4th gear instead of the 3rd you have a 20% decrease. This is getting even worst when you have to shift into 5th or even 6th gear! That's why you lose.

Most advantages of a shorter final drive ratio can be seen on the 1st and 2nd gears, but these gears are not of much use in racing. I can imagine only a very tight race track which could get an advantage from this.

Even the decision to have a 4.1 ratio as standard was mainly for the "feeling" factor. A sports car that can achieve it's top speed only in overdrive (6th gear) is not a very good decision for racing! That is why it is very difficult to go with more than 200km/h (124 mph) in stock form ..

12-31-2014, 05:16 AM	#96
nikitopo Senior Member Join Date: Mar 2014 Drives: '15 BRZ RA Location: Greece Posts: 3,787 Thanks: 2,417 Thanked 1,947 Times in 1,263 Posts Mentioned: 29 Post(s) Tagged: 0 Thread(s)	We are not discussing about higher final drive ratio, but about shorter! For example 4.1 -> 4.5 It is not only about more shifts. It is that you have to work in higher gears. Post #91 mentions it. He was normally using 3rd gear on a specific track and after the change he had to use 4th gear. Overall timing was worst. When you go from a 4.1 to a 4.5 drive ratio you have a 10% increase, but when you're using the 4th gear instead of the 3rd you have a 20% decrease. This is getting even worst when you have to shift into 5th or even 6th gear! That's why you lose. Most advantages of a shorter final drive ratio can be seen on the 1st and 2nd gears, but these gears are not of much use in racing. I can imagine only a very tight race track which could get an advantage from this. Even the decision to have a 4.1 ratio as standard was mainly for the "feeling" factor. A sports car that can achieve it's top speed only in overdrive (6th gear) is not a very good decision for racing! That is why it is very difficult to go with more than 200km/h (124 mph) in stock form .. Last edited by nikitopo; 12-31-2014 at 06:21 AM.