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Re: V6 in Corvair
Posted by: jmaechtlen ()
Date: May 11, 2017 10:36PM

Lots of possibilities -
The transverse packages can be tempting, but there are challenges -
The width means that axle shafts and suspension take some work.
Also, the engine tends to be right where a lot of structure is/will have been.
Of course, getting an engine/transaxle package means you don't have to worry about the 'Vair differential, etc. And you can have an automatic with more than two speeds.
As far as the Buick 3.8/GM 3800 - I have an '87 in mine - original motor - 30 yrs old, 200k, has been terribly overheated (no water in it at all!) a couple of times.
Still runs just fine!
I did have strange shutoff problems until I got rid of the last big factory connector between the engine and the computer.
It may not be bulletproof, but it has put up a damned good imitation!
And will still spin over 5500 going 1-2 (at 55+ mph)

But I am looking forward to getting my 3800 Series II supercharged in there!

Jay Maechtlen
El Monte, Ca
Yes, it started out in life as a 61 2door.
It has a custom fiberglass skin, and a transverse 3.8 Buick.


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Re: V6 in Corvair
Posted by: didget69 ()
Date: May 15, 2017 09:03PM

MattNall Wrote:
-------------------------------------------------------
> I'd recommend a '95 or older Buick 3800 FWD
> powerpack in the back of an FC...
>
>
> OBD 1 and simple wiring. Cars have plenty of
> power and get close to 30 mpg on the Highway...
> few cooling problems compared to other cars..

Be aware of the GM 3.8/3800 plastic intake leak issues from the plastic degradation at EGR stovepipe... lots of head gasket swaps occurred when the intake was the problem, not the head gaskets.

bnc

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Re: V6 in Corvair
Posted by: gnvair ()
Date: May 16, 2017 05:33AM

didget69 Wrote:
-------------------------------------------------------
> MattNall Wrote:
> --------------------------------------------------
> -----
> > I'd recommend a '95 or older Buick 3800 FWD
> > powerpack in the back of an FC...
> >
> >
> > OBD 1 and simple wiring. Cars have plenty
> of
> > power and get close to 30 mpg on the
> Highway...
> > few cooling problems compared to other cars..
>
> Be aware of the GM 3.8/3800 plastic intake leak
> issues from the plastic degradation at EGR
> stovepipe... lots of head gasket swaps occurred
> when the intake was the problem, not the head
> gaskets.
>
> bnc

That was only a problem on the naturally aspirated engines.
The supercharged engines do not have that problem.

Lee J

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Re: V6 in Corvair
Posted by: JimBrandberg ()
Date: May 16, 2017 05:59AM

Call me fickle but I would not put a Ford engine in a Corvair or put a SBC in a 46 Ford. Other combinations would be possible but the Ford vs Chevy thing is too strong, perhaps my ancestors will grey it all up but I cannot. I get the stinkface like the dude in the picture above.
Jim Brandberg
Isanti, MN
CorvairRepair.com

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Re: V6 in Corvair
Posted by: didget69 ()
Date: May 18, 2017 08:30PM

gnvair Wrote:
-------------------------------------------------------
> didget69 Wrote:
> --------------------------------------------------
> -----
> > MattNall Wrote:
> >
> --------------------------------------------------
>
> > -----
> > > I'd recommend a '95 or older Buick 3800 FWD
> > > powerpack in the back of an FC...
> > >
> > >
> > > OBD 1 and simple wiring. Cars have plenty
> > of
> > > power and get close to 30 mpg on the
> > Highway...
> > > few cooling problems compared to other
> cars..
> >
> > Be aware of the GM 3.8/3800 plastic intake leak
> > issues from the plastic degradation at EGR
> > stovepipe... lots of head gasket swaps occurred
> > when the intake was the problem, not the head
> > gaskets.
> >
> > bnc
>
> That was only a problem on the naturally aspirated
> engines.
> The supercharged engines do not have that problem.

How many people will swap in an SC3800?

bnc

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Re: V6 in Corvair
Posted by: gnvair ()
Date: May 19, 2017 04:11AM

didget69 Wrote:
-------------------------------------------------------
> gnvair Wrote:
> --------------------------------------------------
> -----
> > didget69 Wrote:
> >
> --------------------------------------------------
>
> > -----
> > > MattNall Wrote:
> > >
> >
> --------------------------------------------------
>
> >
> > > -----
> > > > I'd recommend a '95 or older Buick 3800 FWD
>
> > > > powerpack in the back of an FC...
> > > >
> > > >
> > > > OBD 1 and simple wiring. Cars have
> plenty
> > > of
> > > > power and get close to 30 mpg on the
> > > Highway...
> > > > few cooling problems compared to other
> > cars..
> > >
> > > Be aware of the GM 3.8/3800 plastic intake
> leak
> > > issues from the plastic degradation at EGR
> > > stovepipe... lots of head gasket swaps
> occurred
> > > when the intake was the problem, not the head
> > > gaskets.
> > >
> > > bnc
> >
> > That was only a problem on the naturally
> aspirated
> > engines.
> > The supercharged engines do not have that
> problem.
>
> How many people will swap in an SC3800?
>
> bnc

It seems most will. There are already at least 3 supercharged 3800 swaps into Corvairs. The Series 1 L67 ranges from 205-225 horsepower stock. The Series 2 is 240 horsepowe. There is a Series 3 supercharged engine. It is the L32 and was rated at 260 horsepower. Why would anyone do this swap and not get as much power as they could?

Lee J

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Re: V6 in Corvair
Posted by: didget69 ()
Date: May 19, 2017 07:31AM

gnvair Wrote:
-------------------------------------------------------
Why would anyone do this swap
> and not get as much power as they could?

Because they're cheap. smiling bouncing smiley

bnc

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Re: V6 in Corvair
Posted by: gnvair ()
Date: May 19, 2017 07:59AM

didget69 Wrote:
-------------------------------------------------------
> gnvair Wrote:
> --------------------------------------------------
> -----
> Why would anyone do this swap
> > and not get as much power as they could?
>
> Because they're cheap. smiling bouncing smiley
>
> bnc


If you look around the price for the supercharged engine is typically the same as the naturally aspirated one.
If you ask the owners why they chose the supercharged one the would tell you because it was cheap winking smiley

Lee J

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Re: V6 in Corvair
Posted by: jaime ()
Date: November 15, 2017 08:43PM

I'm currently working on a LM installing a 3800 s/c from a 98 Pontiac Grand Prix GTP. I'm using as many parts as possible from the Pontiac. The engine cradle with modified mounts, front radiator and upper engine mount structure,using the cv axles and rear sway bar. Modified the stock bottom mcpherson strut mount to connect an upper a-arm I built and attached to the existing Corvair structure. Fabricated and welded to the Pontiac lower a-arm a coil over shock bottom mount and using the stock Corvair shock upper mount to connect a pair of Aldan American coil overs. I built and welded 2 cross members to attach the engine cradle. Lots of time spent trying to engineer the fit and finish.Trying to post some pictures but file size limitation is prohibiting from doing so. Any suggestions on how to reduce the file/picture size?

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Re: V6 in Corvair
Posted by: MattNall ()
Date: November 15, 2017 09:28PM

Jaime...

upload to [imgbb.com] and they'll resize and compress... then copy the "[ IMG]" code and paste here.





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: V6 in Corvair
Posted by: jaime ()
Date: November 15, 2017 09:48PM

Here's some pictures that I was able to resize in reference to my previous post regarding my LM 3800 s/c build.

Attachments:


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Re: V6 in Corvair
Posted by: jaime ()
Date: November 15, 2017 09:52PM

Second set of pictures on my LM 3800 v6 project

Attachments:


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Re: V6 in Corvair
Posted by: jaime ()
Date: November 15, 2017 09:53PM

Another update with pictures of the wheel clearence and stance of my LM 3800 v6 conversion.

Attachments:

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Re: V6 in Corvair
Posted by: MattNall ()
Date: November 15, 2017 10:43PM

Looks great!!

And you went with the Attach a file!! Many have lots of trouble with it...

Try CROPPING the files so only the photo shows...





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: V6 in Corvair
Posted by: azdave ()
Date: November 16, 2017 04:57AM

When I'm under my 2001 Lumina I look up at that engine cradle and think about how much of the structure is exaxctly what would be needed to swap the whole thing into a Corvair. Congrats! Looks like you are well on your way to a nice upgrade.


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




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Re: V6 in Corvair
Posted by: OttawaCorvairGuy ()
Date: November 16, 2017 05:49AM

Jaime,

Nice build. Thank you for sharing it.

If you have not already check it - You might want to check the Supercharger for a known issue.

Two ways of checking it.

1. Get it running and then shut it off. If it has slop; the Supercharger will make a noise like a knock or clunk when you turn the engine off and if it does, it should be fixed.

2. Remove the Belt and by hand rotate the pulley back and forth on the Supercharger. If it has excessive play it should be fixed.

There is an aftermarket kit (if still available) you can buy that is inexpensive and from what I have read (years ago) is easy to do.

FYI - I have a 3800 donor vehicle waiting for me to remove everything for a conversion project I have planned out for UV256.. It was part of my research is how I came across the known problem with the Supercharger and a fix.

BTW - Mine has that issue. A noticeable clunk when you shut the engine off. I then removed the belt and tested it by hand too.

Good luck with your build and please keep us posted. Lots of pictures too!

Sincerely, Tony

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Re: V6 in Corvair
Posted by: wv-geo ()
Date: November 16, 2017 07:37AM

jmaechtlen Wrote:
-------------------------------------------------------
> Lots of possibilities -
> The transverse packages can be tempting, but there
> are challenges -
> The width means that axle shafts and suspension
> take some work.
> Also, the engine tends to be right where a lot of
> structure is/will have been.
> Of course, getting an engine/transaxle package
> means you don't have to worry about the 'Vair
> differential, etc. And you can have an automatic
> with more than two speeds.
> As far as the Buick 3.8/GM 3800 - I have an '87 in
> mine - original motor - 30 yrs old, 200k, has been
> terribly overheated (no water in it at all!) a
> couple of times.
> Still runs just fine!
> I did have strange shutoff problems until I got
> rid of the last big factory connector between the
> engine and the computer.
> It may not be bulletproof, but it has put up a
> damned good imitation!
> And will still spin over 5500 going 1-2 (at 55+
> mph)
>
> But I am looking forward to getting my 3800 Series
> II supercharged in there!

Jay, I've always liked your 61.
Looks like a cross between a Porsche 911 and Alfa Romeo GTV.

Do you have any pictures showing other angles of the car?

Dan Stark
Hurricane, WV

1961 Lakewood 500, 80HP, PG
1964 Corvair 500 Coupe, 140HP, 4spd (Christine)
1965 Mustang Coupe, 6cyl, 3spd

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Re: V6 in Corvair
Posted by: jmaechtlen ()
Date: November 16, 2017 02:05PM

Hi, Dan
Yeah, I have lots of pics, but not well organized.
I have some on my site, some on Facebook, a couple of videos on Youtube.
Nothing well organized.

Attachments:
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Re: V6 in Corvair
Posted by: 65CrownV8 ()
Date: November 16, 2017 04:36PM

I've often wondered what it would take to put my transverse 3.6 VVT into a Corvair, longitudinally. I'm impressed with the torque and it really throws my 4,000 lb Saturn Vue around like it's not even there.

George Jones - East Orlando, FL
'65 Monza V8 Convertible - 355/4-spd Posi - TT015
'66 Monza Coupe - 95/PG
'67 Monza Coupe 140/4-spd/Posi, A/C
COrvaiR Society of America (CORSA), Central Florida Corvair Club, Tidewater Corvair Club, V8 Registry

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Re: V6 in Corvair
Posted by: v8vair ()
Date: November 16, 2017 05:10PM

Being a Chevy guy. Balance shaft 4.3 V6, injected with twin turbos mated to my Jerico Transaxle. Lots of leg room, the stoutest manual gearbox out there that’s affordable. Some day smiling smiley Mike

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Current Page: 2 of 3


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