Join Date: Feb 2009
Location: North of Dallas
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Fwiw, the torque multiplication effect in the fluid coupling of the automatic is essentially like a 1.25-ish gear reduction (varies according to engine load). So that 3.06 axle ratio is effectively like a 3.825, in conjunction with the automatic transmission properties. 1.25:1 being conservative, the effective ratio could end up even shorter than that.
Now, if the transmission activates lock-up clutch mode, then the effective ratios and axle ratio work as you expect they would (at a constant cruise on a city street or the hwy). I don't think it typically enters this mode if you are racing the thing, though.
09 Challenger R/T automatic...4 tires, stick-on convex mirror, seats
I may not use the full 370 hp that often, but bolting out of the gate with a ready 170 hp and the roar of a v8 definitely puts a smile on my face day after day, mile after mile. It's not such a big number, rather how soon that number emerges.
v8 is #winning
v8 is America
Last edited by randycat99; 07-26-2010 at 03:30 PM.