<VV> Transmissions : Convert 4-speed to 3-Speed w/Overdrive

[jvhroberts at aol.com]

Chrysler did this back in the 70s. To get everything to shift properly, they inverted the 3-4 shift lever. We don't have that option! Perhaps a wider ratio 4 speed and  3.08 gears?
 

 

John Roberts
 

 

-----Original Message-----
From: Charles Lee via VirtualVairs <virtualvairs at corvair.org>
To: 'Tom Berg' <thesuperscribe at yahoo.com>; 'Jim Becker' <mr.jebecker at gmail.com>
Cc: 'Virtual Vairs' <virtualvairs at corvair.org>
Sent: Sat, Oct 31, 2015 1:53 am
Subject: Re: <VV> Transmissions : Convert 4-speed to 3-Speed w/Overdrive


Is it possible to change ratios inside a 4-speed transmission to convert it to a
3-Speed, with 1:1 as 3rd, and Overdrive 1+:1 for highway driving?

I'm always
trying to find 5th, and it feels like it could do it with ease, but THERE IS NO
5th GEAR!!

Charlie


-----Original Message-----
From: VirtualVairs
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Tom Berg via
VirtualVairs
Sent: Friday, October 30, 2015 7:26 PM
To: Jim Becker; VV
List
Subject: Re: <VV> Overdrive transmissions

Here's my penny's worth on
lower rpm for Corvair engines: I owned a '62 Monza with the 102 and a 4-speed
back in the day and found that yes, it had to rev to make decent power and stay
happy. For instance, while passing on a two-lane highway I almost always had to
downshift to 3rd, then get on the gas to get around the slower car. 
Now I have
a '64 Monza with a 110 and, thanks partly to its larger displacement (and maybe
a milder cam), its torque curve is much wider. It can be lugged down to 30 mph
or less in 4th gear without protesting, and can pass on a two-laner in 4th and
makes good power and torque while doing it. 
So my guess is that a 5-speed (or
4th-overdrive) would work well with a 110, and wouldn't hurt it. But not with a
102. 
--Tom in Ohio 


     On Friday, October 30, 2015 3:45 PM, Jim Becker
via VirtualVairs <virtualvairs at corvair.org> wrote:
   

 The same arguments
apply to virtually all modifications.

Jim Becker

-----Original
Message----- 
From: Eric Lucas via VirtualVairs
Sent: Friday, October 30, 2015
12:53 PM
To: VV List
Subject: Re:  Overdrive transmissions

Smitty,

I
agree but it would be really 'cool'.

Eric in Indiana

> To:
virtualvairs at corvair.org
> Date: Fri, 30 Oct 2015 13:47:14 -0400
> Subject:
<VV> Overdrive transmissions
> From: virtualvairs at corvair.org
>
> Smitty
Says;  as I read the posts on the need for overdrive for Corvairs I
.....  So
considering the cost and problems to put an
> overdrive in a Corvair I hardly
think it is worthwhile.


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