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Convertible Corner Weights
Posted by: goatsnvairs ()
Date: October 31, 2019 02:32PM

Was wondering what the negative impact of getting rid of the corner weights on my '65 convertible would be. Are they really necessary for daily driving? Anybody out there just take them out?

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Re: Convertible Corner Weights
Posted by: jjohnsonjo ()
Date: October 31, 2019 02:39PM

GM never spent a nickle they didn't need to. They used these in Camero's and Firebirds as well. They stop or reduce certain vibrations that can weaken things over time. Not so much the stuff that you can feel. I used to remove mine for drag racing, but them back when I returned home. Try it and take it for a ride on a bad road with the top down. Watch or feel the door gap under the vent window.

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: Convertible Corner Weights
Posted by: The Stig ()
Date: October 31, 2019 02:41PM

Yes, taking them out leads to a bouncier ride. They are there for a reason, they are not just weights, they are dampers. I have reinstalled them on several lates I got that did not have them.

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Re: Convertible Corner Weights
Posted by: davemotohead ()
Date: October 31, 2019 02:50PM

They reduce cowl shake at about 45 mph and up, the Convertibles have a weaker frame than the coups as they have no top to strengthen things, even with the thicker rockers the frame will shake and develop vibrations at speed, mainly oscillation in the front end you can see and feel, called "Cowl shake" , the dampers in all 4 corners eliminates this problem.







1960 4dr sedan caveman car
1961 Rampside (Chetside)
1962 Rampside (Barnside)
1962 Short Rampside (Shortside)
1962 Monza 700 Wagon
1963 Monza 900 coup (General Nader)

-----------------------------------
Rust Free Lancaster Ca

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Re: Convertible Corner Weights
Posted by: Lane66m ()
Date: October 31, 2019 02:52PM

If you don't have them, you need to get them installed to save your Vair from cracks and breaks.

I have 7 of them I don't need. Just send me a PM if you are looking for some.

Al Lane
Ellabell, GA 31308

1966 Monza Coupe, 110 hp, 4 Spd
1966 Monza More Door 110 hp, PG
1968 Camaro SS Coupe 350 CI 295+ hp PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
1947 Farmall A tractor 15 hp


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Re: Convertible Corner Weights
Posted by: goatsnvairs ()
Date: October 31, 2019 03:28PM

Lane66m Wrote:
-----------------------------------------------------
>
> I have 7 of them I don't need. Just send me a PM if you are looking for some.

Thanks, I have them, was just tearing down the car for a rebuild and took the fronts out today. I didn't know they were so structurally important, my impression is it was more related to ride quality. When I flip the switch to "reassemble mode" I'll be sure to put them back.

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Re: Convertible Corner Weights
Posted by: Timothy Shortle ()
Date: October 31, 2019 03:50PM

As J.O. states, GM never spent a "penny" they didn't need to. An old saying in the automobile manufacturing business is "if you want to make a million dollars selling cars, reduce the cost by a dollar and then sell a million of them".
IMO they are necessary.

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Re: Convertible Corner Weights
Posted by: joelsplace ()
Date: October 31, 2019 04:22PM

Yes but they sure are heavy.

Joel
Northlake, TX
5 Ultravans, Lost count at 100 Corvairs...

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Re: Convertible Corner Weights
Posted by: vairygood ()
Date: October 31, 2019 04:28PM

Were they only used in convertibles?

Buster Tindel
Gulfport Mississippi

65 Corsa 140 4 speed

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Re: Convertible Corner Weights
Posted by: joelsplace ()
Date: October 31, 2019 04:29PM

LM convertibles only.

Joel
Northlake, TX
5 Ultravans, Lost count at 100 Corvairs...

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Re: Convertible Corner Weights
Posted by: Paulsgt ()
Date: October 31, 2019 04:36PM

Legend has it that there were a few coupes built with these dampers. I've never seen one but old-time Corvair mechanics have.

Enjoy the Corvair!

Paul Sergeant
CORSA Central Division Director / CORSA Treasurer
Lee's Summit, MO
CORSA since 1975
Member – HACOA, Corvair Minnesota, CORSA, Little Indians, POCI


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Re: Convertible Corner Weights
Posted by: jjohnsonjo ()
Date: October 31, 2019 06:05PM

Paulsgt Wrote:
-------------------------------------------------------
> Legend has it that there were a few coupes built with these dampers. I've never seen one but old-time Corvair mechanics have.
>
> Enjoy the Corvair!


Hey Mondays and Fridays on the GM line, things happen hot smiley

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: Convertible Corner Weights
Posted by: Phil Dally ()
Date: October 31, 2019 06:10PM

They are sought after in the Landspeed world so they must work.

I know a couple 300 and 400 MPH streamliners that use them.

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Re: Convertible Corner Weights
Posted by: joelsplace ()
Date: October 31, 2019 06:20PM

That's a joke right?

Joel
Northlake, TX
5 Ultravans, Lost count at 100 Corvairs...

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Re: Convertible Corner Weights
Posted by: azdave ()
Date: October 31, 2019 06:29PM

Paulsgt Wrote:
-------------------------------------------------------
> Legend has it that there were a few coupes built with these dampers.

Legends like the 65 Spyder or the factory Rampside with ramps on both sides of the bed? Hard to believe that Fisher Body put corner dampers in a coupe and no one caught it but very easy to believe a prior owner added them.

I've owned verts without the dampers and then added them. I could feel a difference for certain. If I recall they are around 25-27# each. I could ship two in a large flat rate box and that was well under the 70# limit.

Dave W. / Gilbert Arizona
65 Corsa 140/4
66 Corsa 140/4
66 Corsa 140/4 w/factory A/C
66 Corsa 455 Toro V8
65 Monza Convertible 110/4
66 Monza Convertible 140/4 A/C
65 Monza 4DR 140/PG w/factory A/C
65 Monza 4DR EJ20T/5



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Re: Convertible Corner Weights
Posted by: Phil Dally ()
Date: October 31, 2019 06:32PM

Nope...dead serious and both builders worked for Skunk Works.

The red car was very unique FWD BBC TH425 with a Gear Vendor.

Resulting in a 1.5 final drive...one handed at drive 350 mph.




Edited 1 time(s). Last edit at 10/31/2019 06:34PM by Phil Dally.

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Re: Convertible Corner Weights
Posted by: davemotohead ()
Date: October 31, 2019 07:26PM

I bought a Corsa vert that did not have them and it shook like a wet dog at 50 mph, added them and cured the problem.







1960 4dr sedan caveman car
1961 Rampside (Chetside)
1962 Rampside (Barnside)
1962 Short Rampside (Shortside)
1962 Monza 700 Wagon
1963 Monza 900 coup (General Nader)

-----------------------------------
Rust Free Lancaster Ca

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Re: Convertible Corner Weights
Posted by: jcorvair ()
Date: October 31, 2019 08:07PM

Transverse wave won't transmit through fluid so they act to remove any rolling waves that move through the body, which eventually end up at the corners. Compression waves though will be transmitted through a fluid but slowed, so the fluid works a bit to help dampen them as well, but not like they do on flexing type waves.

James
West Kelowna, BC

1965 Corvair, Corsa, Convertible 180/4 - Artesian Turquoise w/ white interior
1966 Corvair Corsa Coupe, 140/4 - Aztec Bronze w/ black interior
2013 Hyundai Santa Fe Turbo
2016 Dodge 3500 Crew Cab 4x4 (for hauling cars, trailers, fifth wheels, quads, etc.)
2013 Victory Car Hauler (enclosed)
2019 Express Car Hauler (Aluminum, Enclosed)
2015 Polaris 570 EPS
2016 Polaris 570 SP
2017 Corvette Z06 Convertible

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Re: Convertible Corner Weights
Posted by: Gold ()
Date: November 01, 2019 09:18AM

I removed my cocktail shakers from the front of my 69 firebird conv. And the rear of my 65 corsa conv. They are very heavy and are located at the worst possible place for performance. They are an inexpensive way to dampen the harmonic shakes inherent of the convertible chassis. You rarely see this in more expensive makes.. When removed you may feel some tiny shakes in the wheel and in the seat, in 30 plus years i have not noticed any chassis issues. My advice is to leave them them in for daily driving. Also, keep them! They are expensive to replace.

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Re: Convertible Corner Weights
Posted by: Wagon Master ()
Date: November 01, 2019 09:56AM

Anyone wanting a set of these expensive, hard to find land speed racer parts......PM me.

'29 Ford Model A Tudor
'61 700 Lakewood 110 4 speed
'69 Monza Convert. 140 Auto.
'70 Dodge Challenger R/T 440 4 speed

Been aircooled since 1973
Northwest Ohio

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