[V8Vairs] 4.56:1 Corvair Diff?

[Ken Hand]

 I've never heard of a 4.56 ratio, 4.11 aftermarket yes. I know what you have told me about your car, buying it new and all and as a Corsa turbo it would have come with a 3.55.

Could there have been clutch slippage? The tire diameter as I remember is close to stock.

 

Ken Hand
248-613-8586
www.corvairmechanic.com
 

 

-----Original Message-----
From: paulsiano at aol.com <paulsiano at yahoo.com>
To: Archibald Evans <ade383 at hotmail.com>; Steve Julius <scjulius at cox.net>; Rick Norris <ricknorris at suddenlink.net>; Frank Parker <fparker at umich.edu>; V-8 Vairs <v8vairs at corvair.org>; Virtual Vairs <virtualvairs at corvair.org>
Sent: Sun, Sep 26, 2010 3:25 pm
Subject: [V8Vairs] 4.56:1  Corvair Diff?


I bought my 1966 Corsa tubro new and four years later started a Crown 
conversion.  I have always been under the impression the differential was 3.55.
 
...and then this email arrived today from Don Sherman:
 
 
 
I also met with your engine builder and his lovely mother.  This
prompted a few calculations which I just made.  I am convinced the
final drive ratio in your car is 4.56:1.  That matches perfectly to
the observed speeds in gears--39 in first, 55 in second, 82 in third
and 120 in fourth, all at 7500 rpm.  Do you find that credible?
Surprising?  sincerely, ds
 
 
 
Do 4.56 ring and pinions exist for Corvairs?
 
I'm all ears.
 
Paul
 
 

 


      
_______________________________________________
V8Vairs mailing list
V8Vairs at corvair.org
http://www.vv.corvair.org/mailman/listinfo/v8vairs
This list sponsored by the Corvair Society of America, http://www.corvair.org/