Originally Posted by VALKRYDERGUY
Just for the record whenever I have followed a 6 speed manual while in my 5 speed Auto-stick I find that the rpm's in your 6th gear are exactly the same as my rpm's in the 5th gear.
Well not "Exactly" Gary.
5 speed Automatic
Trans. Gear Ratio/Overall Ratio_________60 mph at 2250 rpm
3.93:1________12.85:1
2.41:1_________7.88:1
1.49:1_________4.87:1
1.00:1_________3.27:1
0.83.1_________2.71:1
6 speed Manual
Trans. Gear Ratio/Overall Ratio_________60 mph at 2200 rpm
4.46:1_______14.58:1
2.61:1________8.55:1
1.72:1________5.63:1
1.25:1________4.07:1
1.00:1________3.27:1
0.84:1________2.74:1
These statistics come from Motor Trend and Road & Track magazines.
What I can't figure out is how the 6 spd with its "lower" final drive ratio of 2.74:1 vs the automatics 2.71:1 turns 50 rpm "less" than the atomatic does at 60 mph.
Joliet J. Your least expensive (and probably only way) to lower those highway RPM's would be to go to a taller rear tire.
Just by increasing your tires diameter by 1", it would put your final "overdrive" ratio closer to something in the 2.55:1 range. Of course, it would raise all the other gear ratio's as well, so it would slow your acceleration some what. It's a trade off, and a decision only you can make according to the kind of driving you prefer.