what rpm's are you running at 72mph?

That's what it works out to on 4lo.com so it's normal

28 in tire
.63 top gear
3.70 axle
72 mph
2014 rpm




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rookerrobert said:

oh yeah I can almost see the fuel hand moving as I drive....lol

Click to expand...

It's the M6. If you had the A8 automatic it would be way less RPM. Your rear axle ratio is 3.70 compared to 2.62 for the A8. Your 6th gear is .63 compared to .67 for the A8 in 8th so that's about 30% lower gearing on the highway for the M6.


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Top gear on Hellcat M6 is .63, on R/T and 392 it's .50.

So even with the Hellcat 3.70 axle vs the R/T 3.90 the Hellcat still turns more revs on highway.

4lo.com shows 1685 rpm at 72 mph vs 2014 for Hellcat.



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