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Home made shifter for a Corvair powered sportscar
Posted by: Philippe ()
Date: January 12, 2020 06:53AM

Hi,
In a recent post I was asking for help in making a shifter for my 1965 corvair powered custom sports car. One of you advised me to think of building my own, which I did. Here attached are a few pictures that may be of use to folks in a situation comparable to mine.

The system relies on end rod heim connectors, an idea I got from the Corvair Fifth Wheel newsletter. The system displayed in the CFW letter used one heim and one small u-joint. I chose two heims instead and it seems to work alright. The assembly is designed to slide forward and aft on the floor of the car. I feel that shifting is pretty tight and accurate. However I will only know 100% when the car will be on the road, which is not going to be for a while.



Edited 2 time(s). Last edit at 01/12/2020 07:01PM by MattNall.

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Re: Home made shifter for a corvair powered sport scar
Posted by: Phil Dally ()
Date: January 12, 2020 07:42AM

Nice work Phil!!!

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Re: Home made shifter for a corvair powered sport scar
Posted by: MattNall ()
Date: January 12, 2020 07:59AM

Great! The positive feel of that will be nice!

MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Home made shifter for a corvair powered sport scar
Posted by: racingguy2 ()
Date: January 12, 2020 08:04AM

Awesome design! I've been considering something like this to replace my cable shift setup. (mid-engine corvair engine, with VW vanagon transaxle in a Kelmark)
Love it! Thanks for sharing!

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Re: Home made shifter for a corvair powered sport scar
Posted by: toms73novass ()
Date: January 12, 2020 11:14AM

looks vairy nice! thumbs up

-Tom


63' Monza Spyder Convertable (in process) MY Build Thread
65' Monza MY Build Thread
73' NovaSS 454 Big block (Sold)
86' BMW 325es
98' VW Jetta TDI, for daughter
01' Audi Allroad Stage 3 twin turbo
67' UltraVan 211 "Violet"
NFCC, UMCC
Grand Island, NY

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Re: Home made shifter for a corvair powered sport scar
Posted by: Philippe ()
Date: January 12, 2020 12:10PM

Thanks to you and others for your comments.
One foot note before I forget about the subject:

My design could be improved by figuring out a way to minimize vibrations, which I have ignored. Also in making the slotted bracket designed to slide (on the floor)about 1/4" for and aft with the motion of the power train, stainless steel would be a better material (I have used mild steel).

Phil.



Edited 1 time(s). Last edit at 01/12/2020 12:14PM by Philippe.

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Re: Home made shifter for a corvair powered sport scar
Posted by: joelsplace ()
Date: January 12, 2020 04:11PM

What account for the arc the shifter swings through? The spherical bearings will account for the angle. Are you just going to let one slide up and down on the shifter?

Joel
Northlake, TX
5 Ultravans, 114 Corvairs and counting...




Edited 1 time(s). Last edit at 01/12/2020 04:13PM by joelsplace.

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Re: Home made shifter for a corvair powered sport scar
Posted by: MattNall ()
Date: January 12, 2020 04:18PM

Joel, top joint is locked to shaft.

MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Home made shifter for a corvair powered sport scar
Posted by: flat_six ()
Date: January 13, 2020 07:24AM

joelsplace Wrote:
-------------------------------------------------------
> What account for the arc the shifter swings through? The spherical bearings will account for the angle. Are you just going to let one slide up and down on the shifter?


Looks like the lower one slides.

PS: When do we get to see a pic of the "Corvair powered sports car"?



Edited 1 time(s). Last edit at 01/13/2020 07:25AM by flat_six.

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smileys with beersmileys with beerRe: Home made shifter for a corvair powered sport scar
Posted by: Philippe ()
Date: January 13, 2020 12:03PM

Hi flat six,

I should have explained how my shifter assy works. There is a 1" OD tube (# 1/8" wall) welded to a bracket, the bracket is bolted to both the transmission supporting mount and also to the transmission itself. At the cockpit end the tube is equipped with a pillar which supports the upper heim. This assembly is not supposed to move...except that the way it is bolted to the floor of the car allows for a small amount of sliding back and forth (hence the slotted holes). The sliding is necessary as it allows for the engine/transmission to move forward and backward when the engine retaining blocks (rubber) get compressed...without affecting the shifting itself. Inside the tube there is a 1/2" shaft which slides through bronze bearings. The shaft is connected to the tranny via a u-joint and coupling. At the other end (cockpit) the end of the shaft supports a small bracket to which the lower heim is bolted. Altogether the system is not all that different from the Corvair shifter. Instead of a ball joint, I am using heim. The main difference is that GM has featured vibration absorbing components which I have not...but may one day.



Edited 1 time(s). Last edit at 01/13/2020 12:05PM by Philippe.

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Re: Home made shifter for a corvair powered sport scar
Posted by: Philippe ()
Date: January 14, 2020 12:33PM

My build is very much a work in progress. Basically my interpretation of a light 2 seater called lotus seven. Mine has a FG roof and a rear engine. Cheers

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Re: Home made shifter for a corvair powered sport scar
Posted by: Philippe ()
Date: January 14, 2020 12:48PM

As per Flat six request. Pics of my custom built sportscar

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Re: Home made shifter for a corvair powered sport scar
Posted by: MattNall ()
Date: January 14, 2020 12:56PM

Trick! Lot of metal work there!

MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Home made shifter for a Corvair powered sportscar
Posted by: FLSteve ()
Date: January 14, 2020 04:51PM

Nice creation

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Re: Home made shifter for a Corvair powered sportscar
Posted by: doug6423 ()
Date: January 14, 2020 06:53PM

That is cool!! keep the photos coming. smileys with beer

Doug
65 Monza
Cincy, OH

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Re: Home made shifter for a Corvair powered sportscar
Posted by: jjohnsonjo ()
Date: January 14, 2020 07:24PM

Can't wait to see the finished product, or are you planing some sort of rat rod look?

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa


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Re: Home made shifter for a Corvair powered sportscar
Posted by: Philippe ()
Date: January 15, 2020 05:29AM

Hi John,
Yes my inspiration for this build (which is my second one) is indeed a sort of a rat rod. You have noticed that I banged together my own steel seats, some suspension components will remain visible, etc.

At the end of this project I should have (I hope) a lively toy. My Corvair engine should give me around 150HP. The whole car should weigh about 1700 to 1800 lbs.

But to me what I enjoy most is the process and challenges of designing and fabricating an object such as a car. And this includes sharing with other like minded folks, which is what I am doing here and on the Locostusa forum.
Cheers.

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Re: Home made shifter for a Corvair powered sportscar
Posted by: flat_six ()
Date: January 15, 2020 06:58AM

Philippe Wrote:
-------------------------------------------------------
> Hi John,
> Yes my inspiration for this build (which is my second one) is indeed a sort of a rat rod. You have noticed that I banged together my own steel seats, some suspension components will remain visible, etc.
>
> At the end of this project I should have (I hope) a lively toy. My Corvair engine should give me around 150HP. The whole car should weigh about 1700 to 1800 lbs.
>
> But to me what I enjoy most is the process and challenges of designing and fabricating an object such as a car. And this includes sharing with other like minded folks, which is what I am doing here and on the Locostusa forum.
> Cheers.

Very cool! Keep us up to date on your progress please.

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Re: Home made shifter for a Corvair powered sportscar
Posted by: Ratt643 ()
Date: January 15, 2020 07:20AM

Vairy nice work!

1964 Monza Coupe
1965 Corsa 140
1967 Monza Coupe

Maryville, TN
U.S. 129 The"Tail Of The Dragon"

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