How many gear combinations are there in Doug Nash transmissions?
It has eight possible gear ratio combinations. [Richmond Gear] (http://www.richmondgear.com/) also bought the rights to the old Doug Nash five- and six-speed transmissions, which have at least eight ratio possibilities in every gear for an almost unlimited number of combinations.
How to pick the right gear ratio for your needs?
At this point, the serious racer might take his dyno torque curve and use a computer to convert it to thrust at the rear wheels in each possible gear ratio, then plot it against speed along with the bar charts of track speed. This can be seen in the top of Figure 1.
What’s the best gear ratio for a MGA 1800?
Power requirement generally increases as the square of ground speed, so 30% increase of engine torque (supercharger) could get your 1800 up to about 125 mph. Keeping that under 6000 rpm would require 3.500 overall final drive ratio, or 4.300:1 rear axle combined with 0.800:1 fifth gear or overdrive.
What happens when you raise the final gear on a motorcycle?
Raising your bike’s final drive gearing (lower numerically) would reduce engine rpm and have the effect of adding a higher gear, but it would also render all lower gears equally higher, thus reducing acceleration and making passing on hills when fully loaded more difficult.
What’s the gear ratio for a 70 mph car?
We will plug in inputs of 70 mph, a 3.08:1 rear gear and a 28-inch tall rear tire: rpm = mph x gear ratio x 336 / tire diameter rpm = 70 x 3.08 x 336 / 28 rpm = 72,441 / 28
It has eight possible gear ratio combinations. [Richmond Gear] (http://www.richmondgear.com/) also bought the rights to the old Doug Nash five- and six-speed transmissions, which have at least eight ratio possibilities in every gear for an almost unlimited number of combinations.
What should the gear ratio be for drag racing?
Sometimes there may be just two options, with the choices limited to a close-ratio or wide-ratio transmission. The basic difference in applications is between drag racing, with its standing starts, and road racing, where minimum speeds are possibly around 40 mph.
What should the gear ratio be on a TH400?
If we divide that 11.41 by 2.48:1, we can see that the 3.73:1 rear gear with a 4L60E is equivalent to a TH400 with a 4.60:1 rear gear. If that doesn’t bother you, then this package would work well. Another way to go would be to cut the rear gear to closer to a 3.42:1 instead of the 3.73:1.