Diff ratio question
Drifting
Joined: Feb 2017
Posts: 1,274
Likes: 399
From: Tacoma WA
2024 C4 of the Year Finalist - Unmodified
There would be very little difference. At 2000 rpm you go from approximately 61 mph to 58 mph. Now if it were the 3.07 it would be approximately 54 mph. Also very little difference in jump off the line.
Of course if it is close to free and you don’t mind the time spent changing it out, why not? 3.07s are around and reasonably priced so personally I would find a 3.07 if I was going to spend the time and effort to change it out.
Of course if it is close to free and you don’t mind the time spent changing it out, why not? 3.07s are around and reasonably priced so personally I would find a 3.07 if I was going to spend the time and effort to change it out.
Racer
Joined: Apr 2021
Posts: 254
Likes: 60
From: Michigan
You'll want to go up between 15-20% to notice any real difference. The 3.09 is about 19% more torque so obviously your RPMs would increase by about 20% and your gas mileage would be about 2mph worse.
If you're gonna do it either way, drop a 3.73 or 4.11. Then you'll be cooking with fire! 🤣
If you're gonna do it either way, drop a 3.73 or 4.11. Then you'll be cooking with fire! 🤣
Team Owner
Joined: Sep 2001
Posts: 62,186
Likes: 1,741
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
No you would need to go to 3.07 to notice much difference.
3.07s and a 2000-2200 rpm stall TC, and you would be happy with the car's jump off the line.
3.07s and a 2000-2200 rpm stall TC, and you would be happy with the car's jump off the line.
