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V8 vair
Posted by: BillPappy ()
Date: November 21, 2007 09:43PM

I found and dragged home a 67 corvair with a smallblock V8 in the back.
I worked most the day getting the engine started. Just to realize it runs backwards. LOL Should have know that. The front of the car is busted up pretty bad and Rusted out. Don't think I get to drive it at all with out the front falling off.

Anyone ever drive a beast like this? Looks like wheelie time to me.
Im guessing is why the front was crashed.

Pappy

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Re: V8 vair
Posted by: Darren ()
Date: November 21, 2007 09:46PM

Is the motor in the back seat or stock engine compartment? Pics?

Darren
66 Monza SS Convertible
140HP 4 Speed
Colorado Springs, CO
[www.flickr.com]

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Re: V8 vair
Date: November 21, 2007 10:23PM

Hi,

I've owned two mid-engined Corvairs; one was powered by a 327 cubic inch Chevy, and the other had a 215 cubic inch aluminum Buick. The Chevy powered car was a Crown conversion, while the Buick powered car was a Kennedy Engineered Products (KEP) conversion. With the KEP conversion, the shift pattern was mirror-imaged, which didn't cause much of a problem on the street, but it did give me pause when I had to think about the thift pattern of my pseudo-Yenko Stinger when I was down-shifting for old turn nine at Laguna Seca. The next week, I converted the shift pattern on the mid-engine car by getting a side-cover from a four-speed Chevy car - the side covers, complete with shift arms bolts right onto the 1966 Corvair Saginaw transmission, and the shifter arms outside the case can be rotated 180 degrees; removing the Corvair shift rod and linkage - tapped the hole in the transmission for a pipe plug; installing a Vega shifter - with reverse lockout - where the Corvair shifter used to live; connected everything with aircraft quality Morse cables - you need a bellcrank for reverse gear - and shifted happily ever after.

Neither car overheated,thanks to a large radiator up front, exhausting under the car, but the Buick engine was prone to crack exhaust manifolds - had to replace each side more than once - and the Chevy engine had enough torque to break the input shaft if the right foot was not used judiciously.

Both were great cars to drive, well balanced and sedate looking Heh, heh, heh.

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Re: V8 vair
Posted by: BillPappy ()
Date: November 21, 2007 11:24PM

Its engine is in the stock engine compartment.

I got the engine running..It don,t sound good. There is something broke in the transaxle also. All I get is a bad rattle. and lots of popping.

The car is rusted out Juck with no title I will save what I can .scrap it

Sorry no pics of as yet

Pappy

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Re: V8 vair
Posted by: polymer ()
Date: November 21, 2007 11:55PM

You'll need a reverse rotation camshaft and distributor gear in that location.
It sounds like the transaxle is thrashed.

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Re: V8 vair
Posted by: MattNall ()
Date: November 22, 2007 01:57AM

Mel here is just finishing one up!! Where've you been!! Finally got it into paint last week!

Make sure and save the adapters......AND


from your post... you say it took you most of the day to REALIZE that it runs backwards?

Save the engine! $$$$

Those I've seen are not wheelie machines.....but did understeer horrendously under power.... just let up while cornering!

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Re: V8 vair
Posted by: Darren ()
Date: November 22, 2007 03:18AM

The parts are woth something

[cgi.ebay.com]

Darren
66 Monza SS Convertible
140HP 4 Speed
Colorado Springs, CO
[www.flickr.com]

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Re: V8 vair
Posted by: Ed Dowds ()
Date: November 22, 2007 03:44AM

My first Corvair was a '65 with a '66 3sp Sag and a 350 SBC in the rear.
It was pretty easy to reverse the engine. It just required a reverse cam for a boat and two gears to drive the cam (no chain).
I had a reversed starter built from boat parts.
A special distributor gear is NOT required as the cam turns in the normal direction, only the crank turns backwards.
I had noise in the diff once: spider gears in tiny pieces. A V8 Corvair REQUIRES the 4 spider conversion.
It would do wheelies but only if you really tried. It actually handled like the old 911s. It would hang the tail out if you floored it in a turn.
A rear V8 was really too much. That is why my present car is a rear engined 4.3 V6!

BillPappy- can you tell what the adapter is that ties the engine to the diff?
Mine is a two piece MID adapter. It had "MID" cast in it near the distributor.

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Re: V8 vair
Posted by: BillPappy ()
Date: November 22, 2007 02:37PM


Cool Ed

From what I can tell right now the adapter looks like it a steel bell houseing
with the back cut off and a plant weleded on thats bolted to the diff.

I drove a 1969 911 carrera years ago . I never done any fast driving with it.
so I never really got a feel for how it handles.

OK about the Cam If the cam turns in the normal direction. Why does it need
a reverse cam ?

Have a happy Thanksgiving

Pappy

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Re: V8 vair / Reversed cams in SBC
Posted by: MattNall ()
Date: November 22, 2007 03:46PM

The lobes are in different order!

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Re: V8 vair
Posted by: BillPappy ()
Date: November 22, 2007 04:24PM

Yea I found the answer to my question the firing order is backwards. There for it need a reverse cam With the lobs in different order.

Pappy

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Re: V8 vair
Posted by: polymer ()
Date: November 23, 2007 12:20PM

There is more than one way to reverse an engine. Both ways use a special camshaft however one way uses reverse timing gears and the cam rotates in the normal direction and the crank turns backwards. The other uses standard timing gears and reverse cut distributor drive on the cam and a special distributor gear to turn the distributor and oil pump in the right direction. The firing order changes in both cases.
This is common for boats.

Here is a normal and a reverse gear set. Milodon also made a gear set with a single rather than dual intermediate gear.





Edited 1 time(s). Last edit at 11/23/2007 12:23PM by polymer.

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Re: V8 vair
Posted by: Ed Dowds ()
Date: November 26, 2007 09:59PM

My gears look like the set on the right in polymer's post.

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Re: V8 vair
Posted by: BillPappy ()
Date: November 26, 2007 11:53PM



Could someone toss me a few links to where I can find replacement part
and info on this reverse enigine. It needs a cam and timeing gears a rebuild this engine truns out to be a 305 chevy.


(I have search for Milodon reverse gear set.Marine engines parts,chevy 350 boat engines and more) I found all kinds of engines. But no engine parts
Pappy

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Re: V8 vair
Posted by: "UNSAFE" ()
Date: November 27, 2007 12:11AM



Here's one of many. gear set is 80 bucks, toward bottom of page.


[greenbaypartsworld.net]


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Re: V8 vair
Posted by: Gary Hoffman ()
Date: November 27, 2007 01:40AM

Kevin:

Where is the "Mean Vair" artwork from?

Gary

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Re: V8 vair
Posted by: polymer ()
Date: November 27, 2007 02:03AM

Try isky. Here is the above gear.
[www.iskycams.com]

Quote from Isky catalog:
Because the direction of camshaft rotation is reversed with the gear drive arrangement, a specialy ground Isky gear drive roller cam is necessary for operation, along with our special part no 200-DGR "Reverse Cut" Aluminum Bronze Distributor Gear!

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Re: V8 vair
Posted by: polymer ()
Date: November 27, 2007 02:10AM

Also Comp cams.
[www.compcams.com]

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Re: V8 vair
Posted by: "UNSAFE" ()
Date: November 27, 2007 03:48AM



>>>>Where is the "Mean Vair" artwork from?<<<,

Evilbay. I bought a white one and will get a grey one too .


[cgi.ebay.com]

"UNSAFE"
Kevin Willson
65 Monza
Juneau. Alaska

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Re: V8 vair
Posted by: Ed Dowds ()
Date: November 27, 2007 06:55PM

I got my V6 reverse cam thru my local engine rebuilder. It is a "Wolverine/Blue Racer" cam. I think they were taken over by or were part of Crane cams.

My old V8 cam was purchased from a boat parts dealer. The markup was about 30% above what a car engine supplier would have charged.

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