GM 3800 Supercharger Blower Corvair

[California Racer]

It is a time honored hot rod or racing tradition to adapt a supercharger to your engine.

S.C.O.T. superchargers in the 50's were Italian made superchargers that a shop in the USA sold with all the adapters for American engines.

The not so fun part of this is one off machined parts and fabricated manifolds are a lot of work.

Did see a Magnuson supercharger kit for either a Corvair or VW go cheap on Ebay about 5 years ago.

TWO small superchargers w/the kit to make them bolt on! $400! Kicking myself over that one.Magnuson blowers period are pretty rare.

Right now our local Pick Your Part charges $110 for a superchargers and regularly offers 40-50% off coupons.

Will post an article with supercharger top picks in today's junkyards.Think there are three of them.One I think is Toyota Previa.

GM 3800 is a 231 cu in so it would do for a 140-164 cubic inch Corvair motor.

[California Racer]

QUICK NOTE

This is for Off Road so to speak type car.Road race or drag race tube frame.A trailered car.To the race track.

Be a can of worms getting supercharger to fit in factory bodied car.

[bbodie52]

I stumbled on these Corvair Spyder pictures (slightly modified), and I thought they might interest you – perhaps for some future project!

1964 Chevrolet Corvair Spyder coupe - hot rod - GMC 4-71 blower

Outrageous! Car Show - La Verne, CA

[California Racer]

Thanks Brad

That Southern California show car looks nice.

Here is link to one guys top picks for current crop of junkyard blowers.

http://www.roadkill.com/supercharge-eve ... -u-wrench/

Also includes pretty savvy comments about what is good and what isn't about the blowers.

Plus step by step removing them instructions.Print them out and take with to Pick Your Part or Ecology Auto Wrecking.

High rpm engines,turbocharging,supercharging and running alcohol and nitro are hop ups you need to 'look before you leap' a whole bunch about before committing to.It ain't like bolting on a pair of headers and going 'Oooh! High performance!'

[azdave]

Supercharged Corvair at the Fan Belt Toss last weekend. There were two there I think. I rarely see a supercharged Corvair engine so had to show this swap instead.

[California Racer]

Thanks Dave

'I rarely see a supercharged Corvair engine so had to show this swap instead.'

I am not surprised to hear that.

For starters the Corvair cooling fan is where superchargers usually go.

The Magnuson kit I saw had two of them.You put one on each side and leave the cooling fan undisturbed.

Suppose that is one way to do it.Actually probably that would be the smart way

One way would be to underdrive a 3800 supercharger on each side since they are readily available.

If you use one you have to pick which side to put it on.

Use a central manifold and a big tube from the supercharger to the intake manifold.

Then it does not matter where the supercharger is.

[larry202br]

Not to mention the Judson supercharger!

[California Racer]

Thanks

That is similar to the factory turbo charger with a supercharger in same place instead.

The GM superchargers are made to fit on an intake manifold so it will take some calculating to

figure out how to do it.

I do not think funneling the output into a small tube is the answer.

Might work.Just seems like there would be a problem.

Maybe cut the tops off Corvair cast in intake manifolds and put two big chutes down to those openings.

That would point to center location of blower.

GM blower from junkyard is on our list.

[flat6_musik]

Have you kept in mind the counter clockwise engine rotation? I think this is the big "curveball"....you might have some luck with some of the counterclockwise superchargers offered up on Ebay, but they aren't "boneyard cheap".

[California Racer]

'Have you kept in mind the counter clockwise engine rotation?'

No.Now that that is in focus I have a solution.

I was looking at 'gear-to-gear' transfer cases for swing axles in a mid engine conversion.

A transfer case like that for this would be no great shakes.

Would have way less load on it than an axle load.

So.Transfer case would solve rotation problem.

Especially if you are using two Eaton superchargers.That would make it worthwhile to make the cases even more so.

Eaton's come in a range of displacements per revolution for grades of builds.

From street to a big horse power 'parts scatterer'.