[V8Vairs] Transaxles

Archibald Evans ade383 at hotmail.com
Mon Aug 25 13:28:56 EDT 2014



   I've run full size manual valve body Power Glides with full reverse capability on several mid-engine Corvair's using both the Corvair and Quick-Change differentials. Multiple gears are only necessary with an engine which has a narrow power band and moderate torque or if maximum fuel economy is desired. Though the Power Glide is thought of as a 'drag-race' transmission Jim Hall's Chaparral race cars proved that with a wide power band and enough torque and horse-power multiple gears are not necessary. The suspension functions no differently with either a manual or automatic transmission. The only advantage with a manual transmission is engine braking which can be over come with sufficient brakes. As I have written here previously, chasing down then running away from the cafe' motorcycles in the canyons in a mid-engine V8 Corvair (with a Power Glide transmission no less) is quite gratifying... ADE



On Aug 25, 2014, at 8:12, "Jim Acker" <jim.acker at comcast.net> wrote:

> Michael,
> 
> I’ve been contemplating an approach to the front end that sounds the same as your plan.  I’d like to compare notes.  You can reach me at jim.acker at comcast.net.  Thanks.
> 
> 
> On Aug 25, 2014, at 6:56 AM, v8vairs-request at corvair.org wrote:
> 
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> Today's Topics:
> 
>  1. Transaxles (paul beck)
>  2. Re: trans axles (Meyers, Kent)
>  3. Re: trans axles (Michael Svinth)
>  4. Re: trans axles (Meyers, Kent)
>  5. Re: trans axles (Archibald Evans)
> 
> From: paul beck <pbeck001 at yahoo.com>
> Subject: [V8Vairs] Transaxles
> Date: August 24, 2014 at 11:34:21 AM PDT
> To: "v8vairs at corvair.org" <v8vairs at corvair.org>
> Reply-To: paul beck <pbeck001 at yahoo.com>
> 
> 
> I converted my Crown with a Corvair 4 speed to a big car powerglide initially. That moved the axle line back about 2". The next step was to go to a C5 differential. That moved the axles back about a couple more inches. That did put the outside u joints at a pretty severe angle but that was resolved by shortening the C5 axle shafts and using the stock (C5) CVs inside and out. the CVs are capable of operating at a much greater angle than convential unversal joints. The car is still on jack stands waiting for a new set of coil over shocks and springs but the driveline seems to run out good in our initial set up test run.
> One issue you will have to address. The powerglide vacumn modulator mounts on the left rear of the transmission and will have to be removed and the opening plugged. That means you will have to have a pg with either a trans-brake (not reccommended) or a manual valve body. If a transbrake then you will need a manual electric switch to engage the transbrake in order to back up. Works ok but is really a pain unless you plan on doing alot of drag racing. The manual valve body only means you will have to shift to low range to take off and then shift manually to drive.
> My adapter came from Mark Irons (canyonmancorvair at comcast.net) and was well made (all billet) and easy to use.
> Paul Beck
> Corsa
> V8Registry
> PCCA
> 
> 
> 
> From: "Meyers, Kent" <Kent.Meyers at chsinc.com>
> Subject: Re: [V8Vairs] trans axles
> Date: August 24, 2014 at 7:19:08 PM PDT
> To: discussion of non-stock engines in Corvairs <v8vairs at corvair.org>
> 
> 
> Hello,
> 
> I have a late model, rear engine convertible.
> I am interested in whatever options exist for front end coil over springs.
> 
> Where should I be looking for vendor options?
> 
> 
> Much Appreciated,
> 
> Kent Meyers
> 
> -----Original Message-----
> From: V8Vairs [mailto:v8vairs-bounces at corvair.org] On Behalf Of Archibald Evans
> Sent: Sunday, August 24, 2014 9:41 AM
> To: discussion of non-stock engines in Corvairs
> Subject: Re: [V8Vairs] trans axles
> 
> 
> 
>  Just out of curiosity Jim what was it you found so amusing? ADE
> 
> On Aug 23, 2014, at 22:12, "Jim Briggs" <jim_a_b3 at hotmail.com> wrote:
> 
>> 
>> Just noticed my unintentional and inappropriate " lol " post! My apologies! I really don't know how that happened!
>> Jim Briggs
>> 266 rear engine 66 Corsa
>> Sent from my iPhone
>> 
>>> On Aug 23, 2014, at 8:50 PM, "Jim Briggs" <jim_a_b3 at hotmail.com> wrote:
>>> 
>>> Lol
>>> 
>>> Sent from my iPhone
>>> 
>>>> On Aug 23, 2014, at 6:06 PM, "Archibald Evans" <ade383 at hotmail.com> wrote:
>>>> 
>>>> 
>>>> 
>>>> The Porsche trans-axles (and ZF) move the drivetrain back about a foot but in so doing negatively impact the center-of-mass and polar-moment. A C5 trans-axle with either a Power-Glide, Saginaw or 'top-loader' will allow the drive-train to move an approximate 4 to 5" and will not as negatively impact the center-of-mass and polar-moment... 
>>>> 
>>>>> On Aug 23, 2014, at 14:22, "Mike Hannon" <mlhannon at att.net> wrote:
>>>>> 
>>>>> Has anyone taken a crown car and put a different trans axle in it to move the motor back some?
>>>>> Thanks
>>>>> Mike Hannon
>>>>> _______________________________________________
>>>>> 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/
>>>> _______________________________________________
>>>> V8Vairs mailing list
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>>>> http://www.corvair.org/
>>> _______________________________________________
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>>> http://www.corvair.org/
>> _______________________________________________
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> _______________________________________________
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> 
> From: Michael Svinth <msvinth at hotmail.com>
> Subject: Re: [V8Vairs] trans axles
> Date: August 24, 2014 at 8:53:39 PM PDT
> To: discussion of non-stock engines in Corvairs <v8vairs at corvair.org>
> 
> 
> Kent,
> A couple of months ago, I decided to switch to front coil overs to have more control over the ride height.  If the top spring mount is kept stock, the choice of springs is very limited.  I tried the conical spring from QA (3.5"x2.5"ID, 250#, 11"free length).  After cutting 2", it was still too long and much too stiff.  Coil Spring Specialties is making a pair of springs for me which should arrive in a couple of days.  I am very anxious to install them after having made all the calculations necessary, I hope.  
> If you want, I will share the specs and final results.
> 
> Michael Svinth
> 954-540-3151
> 
> 
> 
> 
>> From: Kent.Meyers at chsinc.com
>> To: v8vairs at corvair.org
>> Date: Mon, 25 Aug 2014 02:19:08 +0000
>> Subject: Re: [V8Vairs] trans axles
>> 
>> Hello,
>> 
>> I have a late model, rear engine convertible.
>> I am interested in whatever options exist for front end coil over springs.
>> 
>> Where should I be looking for vendor options?
>> 
>> 
>> Much Appreciated,
>> 
>> Kent Meyers
>> 
>> -----Original Message-----
>> From: V8Vairs [mailto:v8vairs-bounces at corvair.org] On Behalf Of Archibald Evans
>> Sent: Sunday, August 24, 2014 9:41 AM
>> To: discussion of non-stock engines in Corvairs
>> Subject: Re: [V8Vairs] trans axles
>> 
>> 
>> 
>>  Just out of curiosity Jim what was it you found so amusing? ADE
>> 
>> On Aug 23, 2014, at 22:12, "Jim Briggs" <jim_a_b3 at hotmail.com> wrote:
>> 
>>> 
>>> Just noticed my unintentional and inappropriate " lol " post! My apologies! I really don't know how that happened!
>>> Jim Briggs
>>> 266 rear engine 66 Corsa
>>> Sent from my iPhone
>>> 
>>>> On Aug 23, 2014, at 8:50 PM, "Jim Briggs" <jim_a_b3 at hotmail.com> wrote:
>>>> 
>>>> Lol
>>>> 
>>>> Sent from my iPhone
>>>> 
>>>>> On Aug 23, 2014, at 6:06 PM, "Archibald Evans" <ade383 at hotmail.com> wrote:
>>>>> 
>>>>> 
>>>>> 
>>>>> The Porsche trans-axles (and ZF) move the drivetrain back about a foot but in so doing negatively impact the center-of-mass and polar-moment. A C5 trans-axle with either a Power-Glide, Saginaw or 'top-loader' will allow the drive-train to move an approximate 4 to 5" and will not as negatively impact the center-of-mass and polar-moment... 
>>>>> 
>>>>>> On Aug 23, 2014, at 14:22, "Mike Hannon" <mlhannon at att.net> wrote:
>>>>>> 
>>>>>> Has anyone taken a crown car and put a different trans axle in it to move the motor back some?
>>>>>> Thanks
>>>>>> Mike Hannon
>>>>>> _______________________________________________
>>>>>> 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/
>>>>> _______________________________________________
>>>>> 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/
>>>> _______________________________________________
>>>> 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/
>>> _______________________________________________
>>> 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/
>> _______________________________________________
>> 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/
>> 
>> ________________________________________________________________________
>> This inbound email has been scanned for all viruses by the MessageLabs SkyScan service. 
>> ________________________________________________________________________
>> 
>> ______________________________________________________________________
>> This outbound email has been scanned for all viruses by the MessageLabs Skyscan service.
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>> ______________________________________________________________________
>> _______________________________________________
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>> This list sponsored by the Corvair Society of America, http://www.corvair.org/
>                         
> 
> 
> 
> From: "Meyers, Kent" <Kent.Meyers at chsinc.com>
> Subject: Re: [V8Vairs] trans axles
> Date: August 25, 2014 at 6:26:42 AM PDT
> To: discussion of non-stock engines in Corvairs <v8vairs at corvair.org>
> 
> 
> Michael,
> 
> Any information you would be willing to share would be of great help.
> 
> Shortly after buying my car I replaced the tired springs with the small block V8 rated spring that Clark's offers.
> They are on the stiff side but I did liked the stance they provided. Rear/Front were level height at that time.
> 
> I recently tried to lower the front end by 2" by cutting that amount out of the springs.
> The ending result was the car came down about 3 1/2" which is too much for my taste.
> 
> It seems that I have to do things 2-3 times before I'm satisfied with a final change.
> Something I expected but I was hoping to reduce those evolutions by this point.
> 
> Coil overs sound attractive as they offer the ability to make front end suspension changes and reverse those changes if found to be unacceptable, I hope.
> 
> I'll anticipate hearing from you when you're ready.
> 
> Thanks again.
> 
> Kent Meyers
> 507.236.7498
> 
> -----Original Message-----
> From: V8Vairs [mailto:v8vairs-bounces at corvair.org] On Behalf Of Michael Svinth
> Sent: Sunday, August 24, 2014 10:54 PM
> To: discussion of non-stock engines in Corvairs
> Subject: Re: [V8Vairs] trans axles
> 
> Kent,
> A couple of months ago, I decided to switch to front coil overs to have more control over the ride height.  If the top spring mount is kept stock, the choice of springs is very limited.  I tried the conical spring from QA (3.5"x2.5"ID, 250#, 11"free length).  After cutting 2", it was still too long and much too stiff.  Coil Spring Specialties is making a pair of springs for me which should arrive in a couple of days.  I am very anxious to install them after having made all the calculations necessary, I hope.  
> If you want, I will share the specs and final results.
> 
> Michael Svinth
> 954-540-3151
> 
> 
> 
> 
>> From: Kent.Meyers at chsinc.com
>> To: v8vairs at corvair.org
>> Date: Mon, 25 Aug 2014 02:19:08 +0000
>> Subject: Re: [V8Vairs] trans axles
>> 
>> Hello,
>> 
>> I have a late model, rear engine convertible.
>> I am interested in whatever options exist for front end coil over springs.
>> 
>> Where should I be looking for vendor options?
>> 
>> 
>> Much Appreciated,
>> 
>> Kent Meyers
>> 
>> -----Original Message-----
>> From: V8Vairs [mailto:v8vairs-bounces at corvair.org] On Behalf Of 
>> Archibald Evans
>> Sent: Sunday, August 24, 2014 9:41 AM
>> To: discussion of non-stock engines in Corvairs
>> Subject: Re: [V8Vairs] trans axles
>> 
>> 
>> 
>>  Just out of curiosity Jim what was it you found so amusing? ADE
>> 
>> On Aug 23, 2014, at 22:12, "Jim Briggs" <jim_a_b3 at hotmail.com> wrote:
>> 
>>> 
>>> Just noticed my unintentional and inappropriate " lol " post! My apologies! I really don't know how that happened!
>>> Jim Briggs
>>> 266 rear engine 66 Corsa
>>> Sent from my iPhone
>>> 
>>>> On Aug 23, 2014, at 8:50 PM, "Jim Briggs" <jim_a_b3 at hotmail.com> wrote:
>>>> 
>>>> Lol
>>>> 
>>>> Sent from my iPhone
>>>> 
>>>>> On Aug 23, 2014, at 6:06 PM, "Archibald Evans" <ade383 at hotmail.com> wrote:
>>>>> 
>>>>> 
>>>>> 
>>>>> The Porsche trans-axles (and ZF) move the drivetrain back about a foot but in so doing negatively impact the center-of-mass and polar-moment. A C5 trans-axle with either a Power-Glide, Saginaw or 'top-loader' will allow the drive-train to move an approximate 4 to 5" and will not as negatively impact the center-of-mass and polar-moment... 
>>>>> 
>>>>>> On Aug 23, 2014, at 14:22, "Mike Hannon" <mlhannon at att.net> wrote:
>>>>>> 
>>>>>> Has anyone taken a crown car and put a different trans axle in it to move the motor back some?
>>>>>> Thanks
>>>>>> Mike Hannon
>>>>>> _______________________________________________
>>>>>> 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/
>>>>> _______________________________________________
>>>>> 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/
>>>> _______________________________________________
>>>> 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/
>>> _______________________________________________
>>> 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/
>> _______________________________________________
>> 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/
>> 
>> ______________________________________________________________________
>> __ This inbound email has been scanned for all viruses by the 
>> MessageLabs SkyScan service.
>> ______________________________________________________________________
>> __
>> 
>> ______________________________________________________________________
>> This outbound email has been scanned for all viruses by the MessageLabs Skyscan service.
>> For more information please visit http://www.symanteccloud.com 
>> ______________________________________________________________________
>> _______________________________________________
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>> 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/
>                         
> _______________________________________________
> 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/
> 
> ________________________________________________________________________
> This inbound email has been scanned for all viruses by the MessageLabs SkyScan service. 
> ________________________________________________________________________
> 
> ______________________________________________________________________
> This outbound email has been scanned for all viruses by the MessageLabs Skyscan service.
> For more information please visit http://www.symanteccloud.com
> ______________________________________________________________________
> 
> 
> 
> 
> From: Archibald Evans <ade383 at hotmail.com>
> Subject: Re: [V8Vairs] trans axles
> Date: August 25, 2014 at 6:56:26 AM PDT
> To: discussion of non-stock engines in Corvairs <v8vairs at corvair.org>
> 
> 
> 
>  Kent - I've done several Corvair's with coil-overs but am too busy to type it all out this morning. You can reach me at 310/422-2037 PST Archibald...
> 
> On Aug 24, 2014, at 19:19, "Meyers, Kent" <Kent.Meyers at chsinc.com> wrote:
> 
>> Hello,
>> 
>> I have a late model, rear engine convertible.
>> I am interested in whatever options exist for front end coil over springs.
>> 
>> Where should I be looking for vendor options?
>> 
>> 
>> Much Appreciated,
>> 
>> Kent Meyers
>> 
>> -----Original Message-----
>> From: V8Vairs [mailto:v8vairs-bounces at corvair.org] On Behalf Of Archibald Evans
>> Sent: Sunday, August 24, 2014 9:41 AM
>> To: discussion of non-stock engines in Corvairs
>> Subject: Re: [V8Vairs] trans axles
>> 
>> 
>> 
>> Just out of curiosity Jim what was it you found so amusing? ADE
>> 
>> On Aug 23, 2014, at 22:12, "Jim Briggs" <jim_a_b3 at hotmail.com> wrote:
>> 
>>> 
>>> Just noticed my unintentional and inappropriate " lol " post! My apologies! I really don't know how that happened!
>>> Jim Briggs
>>> 266 rear engine 66 Corsa
>>> Sent from my iPhone
>>> 
>>>> On Aug 23, 2014, at 8:50 PM, "Jim Briggs" <jim_a_b3 at hotmail.com> wrote:
>>>> 
>>>> Lol
>>>> 
>>>> Sent from my iPhone
>>>> 
>>>>> On Aug 23, 2014, at 6:06 PM, "Archibald Evans" <ade383 at hotmail.com> wrote:
>>>>> 
>>>>> 
>>>>> 
>>>>> The Porsche trans-axles (and ZF) move the drivetrain back about a foot but in so doing negatively impact the center-of-mass and polar-moment. A C5 trans-axle with either a Power-Glide, Saginaw or 'top-loader' will allow the drive-train to move an approximate 4 to 5" and will not as negatively impact the center-of-mass and polar-moment... 
>>>>> 
>>>>>> On Aug 23, 2014, at 14:22, "Mike Hannon" <mlhannon at att.net> wrote:
>>>>>> 
>>>>>> Has anyone taken a crown car and put a different trans axle in it to move the motor back some?
>>>>>> Thanks
>>>>>> Mike Hannon
>>>>>> _______________________________________________
>>>>>> 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/
>>>>> _______________________________________________
>>>>> 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/
>>>> _______________________________________________
>>>> 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/
>>> _______________________________________________
>>> 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/
>> _______________________________________________
>> 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/
>> 
>> ________________________________________________________________________
>> This inbound email has been scanned for all viruses by the MessageLabs SkyScan service. 
>> ________________________________________________________________________
>> 
>> ______________________________________________________________________
>> This outbound email has been scanned for all viruses by the MessageLabs Skyscan service.
>> For more information please visit http://www.symanteccloud.com
>> ______________________________________________________________________
>> _______________________________________________
>> 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/
> 
> 
> 
> _______________________________________________
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> 
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