[200q20v] re: spedo and gear ratios

C1J1Miller at aol.com C1J1Miller at aol.com
Wed Aug 30 11:50:50 EDT 2000

OK, done some additional calcs, and refined my numbers a bit.
Using the tire calc off http://www.venommotorsports.com/howto/wheeldiameters.htm
I input stock tire size, gear ratio, rear end ratio, and speed, and find the following, assuming redline is just over 7000rpm:

    200q20v              urs4     
 gear  ratio  max speed   ratio  max speed
  1    3.60      35       3.50     37
  2    2.13      60       1.89     68
  3    1.36      94       1.23     105
  4     .97     133        .99     130
  5     .73     177        .73     177

 These numbers are rounded, and are max... with tire wear, your top speeds drop; to be conservative, and protect your engine, don't reach these speeds.  The upper gears are limited on power available versus wind resistance and mechanical resistance, and may not reach those speeds (way past max hp in each gear).

  same 5th, 
  2% lower 4th
  10% higher 3rd
  11% higher 2nd
  3% higher 1st.


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