Tallica4life81

So I have a 2016 3.7l auto and just had my rear differential gears 3.15's swapped to 3.73's and my time is anywhere from .6 seconds slower to a full sec. Slower than before. Also before you ask yes I recalibrated my car with my sct x4 hand held tuner.
Waist of 1000 bux of all my parts and labor.

99GTvert

Are your tires spinning? I mean are they not sticking? Because a steeper gear means more torque meaning greater potential for traction loss.

Doesn't the car at least feel faster?

Tallica4life81

They don't spinning at all. No loss of traction. I wonder if my runes F'd up because even before my gear swap my times were getting a little slower. From the moment I hear the engin racing to the moment I feel it move forward is like 2ish or more seconds alone.

Tallica4life81

Tunes

CCCP1999

Can't be the gear dear.

Tallica4life81

I think it may be the tune

jwog666

reaction time and pedaling to avoid wheel spin will effect the 0-60. the gear will not make it slower

Tallica4life81

I performed a KAM relearn this morning through the scanner and now she's running better and now can get my wheels to spin. My problem was that it was just acting real slow. Super slow of the line but this morning she's better it's still 71 degrees and humid as hell and is running like it should.

-SHIFTY-

3.73's tend to really wake mustangs up, so I'm leaning twards your tune. I actually prefer 3.55's on the street.

Line the same car up with 3.55's vs 3.73's and the 3.73's should win every time.

Tallica4life81

I'm gonna call my tuner and talk to him