<VV> 3.1 liter - HUMOR

[Bruce Schug]

C'mon on Chuck, what's a couple millimeters between friends?


On Apr 25, 2012, at 9:48 AM, BBRT wrote:

> Minor correction:  92 mm gives 3.0 L while 94 mm cyl give 3.1 L.  
> Assuming of
> course, the crank shaft stroke remains late model stock of 2.94.
>
> Chuck S
> ----- Original Message -----
> From: "Cliff Tibbitts" <tibbitts at qx.net>
> To: <virtualvairs at corvair.org>
> Sent: Wednesday, April 25, 2012 9:43 AM
> Subject: Re: <VV> 3.1 liter
>
>
>> Tom, I suppose you could call it a kit.  Several people are doing it.
>> Essentially, you replace the pistons and cylinders with 92mm  
>> pistons from
>> a
>> VW.  It is not a simple bolt on application.  The cylinder fins  
>> need to be
>> re-drilled in order to fit over our head studs.  The crankcase and  
>> heads
>> need to be machined to accept the larger pistons and I believe the  
>> small
>> rod
>> ends on our connecting rods need to be machined to accept the VW  
>> piston
>> pins.  There is probably more to it than that.
>>
>> What many claim to achieve is more low end torque.  This alone  
>> should make
>> it a worthwhile investment in a Whale.  The only concern I would have
>> would
>> be additional heat.  I don't know how well the engine cools in an  
>> Ultra.
>> However, they seem to work very well in the cars.  I know several  
>> and have
>> driven at least one car with a 3.1 in it.  Consider this.  You pick  
>> up
>> about
>> an additional 15% cubic inches.  Since the weight of the rotational  
>> mass
>> increase is almost negligible, it is like getting free horsepower.   
>> That
>> is
>> if you discount the $2000 plus dollars for the conversion,  
>> depending on
>> how
>> much work you do yourself.
>>
>> Cliff Tibbitts
>> Lexington, KY
>>
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>
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Bruce

Bruce W. Schug
bwschug at att.net