The following
calulators are offered free of charge! Use them to find new
gear ratios, tire sizes, RTI ramp scores, electrical
calulations, speedometer conversions and more! Provided by
http://www.4lo.com
Now that you have
your truck lifted, you want bigger meats. They look cool and
have the potential of being very functional, but they may
also be robbing you of power/gas mileage. This calculator
will get you back to a ratio that's closer to your original.
Enter the values on the left and press Compute.
Ever
wonder how far off your speedometer is with your new bigger
tires? This uses a simple ratio calculation, so the info
will only approximate your corrected speed and depends on
the accuracy of tire size diameters (assuming nothing but
tire size has changed).
Ever wonder what
your low-low-low gear ratio is, your "crawl ratio"? You'll
need to do a little research by finding out the transfer
case and transmission ratios first. Enter your values on the
left side, press Compute and your answer will be on the
right.
I've spend a
bunch of time trying to WAG (wild ass guess) my actual MPH
when going down the road. By knowing your gear ratios and
tire size you'll get a more accurate idea here. Enter the
value on the left, press Compute.
I suppose if you
don't have a tachometer you could use this form, otherwise
it's only useful to find out how accurate your Tach is.
Enter the values on the left, press Compute.
This
formula is a nice way to get the tire diameter of those
metric tires that are common on just about everything stock.
For example a 265/75R16 would be around 31.6 inches tall.
Enter the numbers into this form in the order you read them
from the tire and press Compute.
Credit for the above calculators
goes to
Mark Medina.
If you would like to see Marks page go
here.
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