What's your RPM at 70 MPH?
02-28-2011, 10:42 PM
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What's your RPM at 70 MPH?
I have a 08x 5AT.. at 70MPH I read about 2800 RPM's on the tach.
Just wondering what the new 7AT reads at the same speed.
Drove a 2.5 Altima and it was a little above 2K RPM's at 70MPG. but surprisingly the gas mileage wasn't much better then my G.
Just wondering what the new 7AT reads at the same speed.
Drove a 2.5 Altima and it was a little above 2K RPM's at 70MPG. but surprisingly the gas mileage wasn't much better then my G.
03-01-2011, 12:54 AM
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03-01-2011, 09:52 PM
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I checked on the way to work today. At cruise, in D, the 7AT is 2250rpm @ 70mph in 7th gear. This actually lines up almost exactly with the theoretical. Final drive ratio in 7th gear is 0.77. The radius of the stock 18" sport rims and OEM tires is 13.5", give or take. Do the math and you get 2264rpm@70mph. 6th gear would be about 2530rpm and 5th gear about 2940rpm.
The crazy thing is that red line in 2nd gear would be 93mph and you would hit the speed limiter in 3rd gear, right about 7500rpm.
The crazy thing is that red line in 2nd gear would be 93mph and you would hit the speed limiter in 3rd gear, right about 7500rpm.
03-02-2011, 07:16 AM
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