I cannot access the tire gear & speed calculator
tire height,
Rear differential gear,
transmission gear
RPM
And/or travel speed
Any 4 of the five
and figure out transmission and rear gear combinations for the street and highway.
If you have at least two of these four parameters already fixed, then you can re configure the supplied formulas to reflect that, and put it into your calculators memory. Then just swap in a third parameter to get the fourth.
Example;
suppose you already know the tire diameter of
26.5 = (83"Tc) and trans gear of 1.0;
and you want to know rpm at 65 mph. Then ;
RPM= (mph x 1056 x R1 x R2)/Tc .
rpm = (65mph x 1056 x 1.00(hi gear) xR2 unknown) /83=
rpm = R2/827, so then
you punch 827 into the memory, then recall it and multiply it by any rear gear to get the rpm for that gear, at zero-slip.
Or; you can divide your rpm target by that 827, to get a gear ratio.
For example 1
827 x 3.55=2936 rpm
Example 2
2936rpm/827=3.55s
If you do it wrong and get a decimal number like .2817, hang on! just take the reciprocal of it like so 1/.2817= 3.55
After a few of those, your fingers will fly thru the keys and it will be faster than the Wallace.
