In a message dated 97-09-17 02:04:32 EDT, jarrid_gross(at)juno.com writes:
>
>>>Here is some OD techo stuff for gearheads.
>>>
>>>With the std trans and a 3.89 rear diff, 60 MPH is at 3400 RPM in
>>4th..................etc...
>
the 'blasphemous heathen' replied:
>>Factory numbers with tall, skinny bias-plies. What about with modern
>>tires?
>>
Reply:
>the high profile 5.6 tyres yield similar numbers, but...
>
>The above data is for 175 70 R13 or 205 60 R13 as both are within
>several milimeters of theoretical circumference.
>
>This data was specifically compiled using the 205 60 HR13 MFGr data,
>and empirical data I took for my car. The 175 data just goes along for
>the ride.
>
>
I've been running 205 60 R13's of various brands for a decade and have never
run faster than 15 mph per 1,000 rpm.(eg. 4000 rpm's = 60 mph, etc) with a
3.89 diff. The tach has checked out OK.
?????????
Dick Sanders
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