345's, SRT just used custom gear ratios that are roughly the same when you multiply the transmission gear ratio by the rear end gear for the first 3 gears and of course changed 5th and 6th...
So, in absolute terms taking into account transmission gear ratio X rear end gear ratio, now the Gen V has 2% more TQ multiplication in 1st gear and second gears(easy to spin the tires in those gears anyway while still being able to go 0-60 in 1st gear), about 5.5% more TQ multiplication in 3rd, 13.5% more tq multiplication in 4th, 17% more in 5th up to 190 MPH and only 2% less than the .74 5th with the 3.07 old style transmission/rear end gear ratio setup!
So: when you take into account that in the power band where the Gen V is making the +40 LBS/Ft, then the torque multiplication by gear is the following:
Gen4:..........................................................................................Gen V:
1st 560 RWTQ * 2.66* 3.07 = 4573.............................................1st 600 RWTQ * 2.26 * 3.55 = 4814. 4814/4573 = 5% More TQ multiplication
2nd By similar calculation = 3060...................................................2nd By similar calculation = 3365. 3365/3060 = 10% More TQ multiplication
3rd = 2235....................................................................................3rd = 2535 2535/2235 = 13% More TQ multiplication
4th = 1719....................................................................................4th = 2130 2130/1719 = 24% More TQ multiplication
5th = 1272....................................................................................5th = 1640 1640/1272 =29% More TQ multiplication
6th = 860......................................................................................6th = 1342 ==> Forget about this comparison.... but 1342/1272 is still 5.5% more TQ multiplication than stock 5th when the MPH of the Gen 4 and Gen 5 in this side by side race to top speed would necessitate the Gen 5 having to shift into 5th gear at about 190 MPH....
So when people are upset about only 40 more HP, they are not taking into account the gearing, as the Gen 5 has about 5% more power you will feel in 1st, 10% more in 2nd, 13% more in 3rd when aero drag starts to become a factor, 24% more in 4th, and 29% more in 5th until 190 MPH. In loose terms since the torque curves of the gen 4 and 5 are fairly similar except for the Gen 5's staying flat to the very end as depictrd in the graphs shown to us, we can reason to multiply the HP by these numbers to illustrate to the people upset by the absolute power numbers that 1st gear has 640 X 1.05 = 672 HP, 2nd gear has 640 X 1.1 = 704HP, 3rd gear 640 X 1.13 = 723.2 HP, 4th gear 640 X 1.24 = 794 HP. 5th gear (up to 190 MPH) 640 X 1.29 = 826 HP.
So with this gearing, the Gen5 will accelerate like iit has this much more power in each gear as compared to the Gen 4.....
What I am saying is that the Gen 5 will eat the Gen 4 alive in a mile race or a race to the top speed. All this because of gearing......
Interesting?
YES!
The new short gearing is great. Here is a quick detailed look. These are ratios/speeds are at fuel cut-off (6400rpm) with new 355/30/19 tire (27.38" tall) and 3.55" axle ratio.
Gear Ratio Speed
1st....2.26......65.0
2nd...1.58......92.9
3rd....1.19.....123.4
4th....1.00.....146.8
5th....0.77.....190.7
6th....0.63.....233.1
GenV gearing will allow it to exceed 60mph in 1st gear!!!!!!!!!!!!!
The following table contains speeds at each rpm for each gear:
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