Now i know that it depends on a bunch of stuff from engine hp and torque down to the size of the tires for the car but also on the track you are running. Manufacturers tend to gear 1st so you do not need to shift to 2nd to get good 0-60 times, so ratios just becomes a starting point.
Let's base this discussion on LS9/MH3, LS7/MM6, LS3/MZ6 and Ford 5.4/Ricardo.
The current ratios are as follows:
MM6 MZ6 MH3 Ricardo
1st 2.66 2.97 2.29 2.611
2nd 1.78 2.07 1.61 1.708
3rd 1.30 1.43 1.21 1.233
4th 1.00 1.00 1.00 0.943
5th 0.74 0.83 0.82 0.767
6th 0.50 0.57 0.68 0.625
Final drive 3.42 3.42 3.11 3.364
So for the SLC running let's say an NA engine 700hp/600 lb ft. I am looking at using a 5 speed for the street and a 6 speed dog box for the track. Opinions of ratios for both?
Thanks
Rob
sorry about the table formatting, could not get to to look nice
Let's base this discussion on LS9/MH3, LS7/MM6, LS3/MZ6 and Ford 5.4/Ricardo.
The current ratios are as follows:
MM6 MZ6 MH3 Ricardo
1st 2.66 2.97 2.29 2.611
2nd 1.78 2.07 1.61 1.708
3rd 1.30 1.43 1.21 1.233
4th 1.00 1.00 1.00 0.943
5th 0.74 0.83 0.82 0.767
6th 0.50 0.57 0.68 0.625
Final drive 3.42 3.42 3.11 3.364
So for the SLC running let's say an NA engine 700hp/600 lb ft. I am looking at using a 5 speed for the street and a 6 speed dog box for the track. Opinions of ratios for both?
Thanks
Rob
sorry about the table formatting, could not get to to look nice
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