Fun with Math: Drive Shafts
So I just replaced my 2.73 gears with 3.73 and am thinking about that drive shaft.
I understand the factory ecm limits us to 120 mph for good reason; the factory drive shaft isn't rated for higher speeds.
But I changed out the gears to 3.73. That means the shaft is rotating at a higher rpm at the same speed than before. Does this mean I need to keep the car below about 88 mph?
Maybe I did the math wrong, too. I was thinking that going 88 mph with 3.73 gears is roughly equivalent to 120 mph on 2.73 gears.
The reason this is on my mind is because I was thinking about taking the car to the track to see what differences the new gear, CAI (and hopefully Bama's custom tunes, whenever they are done with them) make. But if that driveshaft will make that idea really dangerous, then I need to reconsider.
Thoughts? Am I way off here? Or have I got it about right?
2017 GT350 w/electronics package.