David -
1st: 3.20 to 1, 2nd: 1.916 to 1, 3rd: 1.357 to 1, 4th: 1.00 to 1.00.
Clay L.
'67 Sprite
At 11:25 AM 6/14/01 -0500, David Littlefield wrote:
>Anyone know offhand the gearbox ratios for a stock ribcase transmission
>supplied with a 1275 motor?
>
>I'm trying to relate tachometer readings with speed (no speedo in the
>racecar).
>
>Using the various calculators, I've got a top speed in fourth (assuming a
>1.0 ratio) of about 103 with my 4.22 rear end and 22.4" tire diameter at
>a rev limit of 6500. I'd like to know what top speed is in third using
>the same rev limit.
>
>Thanks!
>
>David Littlefield
>'62 MGA MkII
>'51 MGTD
>'74 MG Midget vintage racer
>'88 Jaguar XJ-S
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