Gear Ration Information!!

[Lstruck03]

Hey guys.. took some time to build a spec sheet of all the available gears for the 2011 6spd manual. I decided not to do the automatic becuase I hear you can not get a gear option with them.



27" tire/7000 rpm

3.31 ..... 3.55 ..... 3.73

1st - 3.66 ... 46 43 41

2nd - 2.43 ... 70 65 62

3rd - 1.69 ... 100 94 90

4th - 1.32 ... 128 120 114

5th - 1 ... 170 158 151



27" tire/7500 rpm

3.31 ..... 3.55 ..... 3.73

1st - 3.66 ... 50 46 44

2nd - 2.43 ... 75 70 66

3rd - 1.69 ... 108 100 95

4th - 1.32 ... 138 128 122

5th - 1 ... 182 170 161



28" tire/7000 rpm

3.31 ..... 3.55 ..... 3.73

1st - 3.66 ... 48 45 43

2nd - 2.43 ... 72 67 64

3rd - 1.69 ... 104 97 93

4th - 1.32 ... 133 124 118

5th - 1 ... 176 164 156



28" tire/7500 rpm

3.31 ..... 3.55 ..... 3.73

1st - 3.66 ... 51 48 46

2nd - 2.43 ... 78 72 69

3rd - 1.69 ... 111 104 99

4th - 1.32 ... 143 133 127

5th - 1 ... 189 176 168





What do you guys think? If you notice, the 3.55 at 7500 is equal to the 3.31 at 7000.



I think that a bolt on car should go 27"/3.73/7500 and a nitrous car might want the 28"/3.31/7000rpm.

 

[cobra916]

dang with 373is in a 5.0 its almost like 456s in a mach...

 

[Driver72]

When the 11 GT came out a guy on another forum put together the numbers and made up a downloadable "gear chart" for all.
I ran the numbers too but you should edit and do like I did and post with 27.2 inch tire as that's what the OEM 18 and Brembo 19 are.

Or if I can find it again, I could just post a link to the "gear chart" this other guy did several months ago for all to download here too.

As I've continued to say, the 3.55 ratio to me would be the best choice for dragging, especially when stock or with bolt ons and tune, and maybe even more so with a supercharger as the 3.73's will just equal more wheel spin unless you run slicks.
3.55's will do about 119 mph in 4th (at 6850 redline) (or a bit over 120 if you run to the fuel cutoff) which is perfect for traps in the 117-118 mph range (where you could be with bolt ons and tune).
The 3.73's require a shift to 5th on a fast track (even on a stock car) which just kills the run where you shift right in that last 66 feet of the trap speed lights. With light mods you need to shift to 5th well before the stripe and with a 3.55 car you still stay in 4th saving the shift time and loss of acceleration and taller gear ratio 5th bring compared to 4th (meaning you will accelerate faster in 4th with 3.55's than you will in 5th with 3.73's)

 

[Lstruck03]

I agree with you Driver, for the most part.

As we are starting to see, tuners are raising the limiter and shifing past the 7000rpm mark. that is why I made a chart showing the 7500 rpm points.

For drag racing, it still the same as it has been for ever. Taller tires equate to better traction, so a steeper gear will be more effective. I say if someone is buying one and will be doing alot of drag strip time, and will do at least boltons, do with the 3.73's and a 28" tire.