At 03:36 PM 10/7/2000 -0700, Bullwinkle wrote:
>.... It states that the 1954 ZA Magnette was equipped "with a Laycock-de
Normanville overdrive added." The standard ratio was 4.874/1 without the
OD and 3.68/1 with.
>....
At 10:22 PM 10/7/2000 -0500, Charley Robinson wrote:
> Hmmm, those final drive ratios come out to a ~25% overdrive, instead of
the ~20% we're used to seeing. Wonder where they got it.
Yup. That's a 4/3 step down.
At 10:55 PM 10/7/2000 -0700, Bullwinkle wrote:
>They also state that the 4.55/1 car did 85.8 MPH at 5250 RPM and the OD
car did 90 MPH at 4400 RPM. Does that still work out at ~25% reduction?
Well, no. THAT works out to 5/4 step down, or a 20% reduction in engine
speed. And these are both in the same article refering to the same car? I
think Big Bird made a mistake.
Barney Gaylord
1958 MGA with an attitude
http://www.ntsource.com/~barneymg
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