Join Date: Aug 2007
|General Charger Discussion General Discussion about the Dodge Charger.|
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That had to be done on a dyno.
According to my calculations, that would be over 5,800rpms in 5th on a R/T which that is by the 160mph speedometer.
212.5mph = 1,122,000 feet/hour / 60 = 18,700 ft/min
with a stock tire diameter of 28.63" you have a tire circumference of 89.90 inches or 7.491 feet.
so at 18,700 ft/min the tires are turning 2,491 times per minute
with a rear axle of 2.82 which is what the R/T has, the drive shaft would be spinning at 7,039 RPMs.
with a 5th gear ratio of 0.83 to 1, the engine would be spinning at 5,842 RPMs.
My stock 06' R/T R&T topped out at 142MPH. With intake and Superchips I topped out at about 158MPH (limited by only the wind). With my current mods less the nitrous I've hit about 163MPH.
I'm afraid to use the nitrous at 160MPH because my tires are rated for 149MPH, I'm sure they would be all right, but its hard to find enough open highway in the L.A. area to hit 170+ MPH.
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