Hi Bob;
Here is an Excel spread sheet I developed many years ago that
calculates MPH & RPM given various rear-end ratios and overdrive
reductions. The various inputs are identified in !blue" and a graph
is provided which illustrates the MPH at given RPM. The spread sheet
is based on two sources:
1. "Laycock Overdrive - Section 1: Working Principles,
Maintenance and Fault Finding"
2. "Laycock Overdrive ...as fitted to the AUSTIN-HEALEY 100" a
brochure provided when each car was purchased
If you have any questions, do drop me a note.
--Scott Morris; Simcoe, Ontario, Canada; "60 MkI BN7 & "62 MkII BT7
[demime 1.01d removed an attachment of type application/octet-stream which had
a name of MPH]
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