<VV> Different(ial) Opinions

[Ron F Hinz]

All Corvairs are outclassed in California where, on I5, I stayed out of the
left-most fast lane and set the cruise control on my Toyota at a comfortable
85.  The slowest of the 4 or 5 lanes to the right of me was at about 65 but
it was all semi's as were the next two or three lanes.  In the left lane,
cars were zipping by me.  This was between LA and San Diego.
RonH

----- Original Message ----- 
From: "Bill Elliott" <Corvair@fnader.com>
To: <virtualvairs@corvair.org>
Sent: Tuesday, December 14, 2004 12:31 PM
Subject: Re: <VV> Different(ial) Opinions


> >These days, with our lower profile tires (OE tires were 80+ profile), the
> >3.27 axle yields nearly the same performance as the 3.55 axle originally.
You
> >will be very satisfied with the 3.27 ratio. With today's tires and 3.55
gears,
> >the engine rpms will approach 4000 at 70 mph.  I prefer 3.08 gears,
(about 3200
> >at 70) but they suffer from poor launch unless you also change the
> >transmission to an early, wide-ratio type.  Be sure to check the internal
splines in the
> >pinion shaft.  I like to see 70% spline or more.  Frequently, rebuilders
find
> >the spline is almost gone.  Failure results in a no-go; not good!
> >Craig Nicol
> >
>
> Craig makes a great point about the lower profile tires.
>
> I think a lot of the differential choice depends on how you see the car.
For a "sports GT" with great throttle response, you want the 3.55 AND short
tires.
> For a more relaxed cruiser, you will like the 3.27.
>
> My 140/3.55 car with short tires, stiff suspension, and loud pipes will
beat you to death on the Interstate. It's "sweet spot" is about 50 mph.
>
>
> My wife's110/ 3.27 car with slightly taller tires is a joy on the
Interstate and will comfortably cruise any legal (and some extralegal) speed
without fuss or
> strain. "Sweet spot" is about 65...
>
> Bill Elliott
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