4.7 vs 5.1 FD in a SE-R tranny
Changing from a 16ve tranny to an aftermarket FD on a regular SE-R tranny. However I'm undecided over the 4.7 or 5.1 FD.
The 4.7 will be very close to a 16ve at the end of the day, so I'm not sure if it justifies the cost. Here is the % difference compared to a 16ve ratios for each of the 5 gears:
99.1%
100.7%
102.6%
107.8%
107.8%
The 5.1 will be very different but I worry about the 1st gear and if these will be too short at the end of the day.
107.0% (aka 7% shorter 1st gear ratio)
108.8%
110.8%
116.5%
116.5%
Thoughts?
The 4.7 will be very close to a 16ve at the end of the day, so I'm not sure if it justifies the cost. Here is the % difference compared to a 16ve ratios for each of the 5 gears:
99.1%
100.7%
102.6%
107.8%
107.8%
The 5.1 will be very different but I worry about the 1st gear and if these will be too short at the end of the day.
107.0% (aka 7% shorter 1st gear ratio)
108.8%
110.8%
116.5%
116.5%
Thoughts?