<VV> What's The Difference

[J R Read_HML]

Hi Bob,  Don't know if this impacts, but the '60 cylinder bore (stock) was 
3.375" while the '61 - '63 bore was 3.4375".  So, besides head and carb 
differences - the bore could also play a role in the advertised HP?

Caveat, I never had an 80, 98, or 102 so cannot speak from personal 
experience.

Later, JR
CCE and CORSA member
'61 Rampside Standard 4/110
'65 Monza Convertible 4/140
'66 beater 500 Coupe "icemobile" 4/140 (50%)


----- Original Message ----- 
From: <BobHelt at aol.com>
To: <alias_unknown_2004 at yahoo.com>; <virtualvairs at corvair.org>
Sent: Wednesday, July 11, 2007 4:09 PM
Subject: Re: <VV> What's The Difference


>
> Hi Jim,
> Please see below.
> Regards,
> Bob Helt
>
> In a message dated 7/10/2007 10:25:03 PM US Mountain Standard Time,
> alias_unknown_2004 at yahoo.com writes:
>
> Sorry,  on the second question i meant what was the difference between the
> CARBS on  the 98 hp and the 80?
>
> Jim Danner <alias_unknown_2004 at yahoo.com>  wrote:  ...between the 98 hp
> engine and the 102 hp engine? What did the  GM engineers do to squeeze out 
> the
> extra 4 horses?
> This has never been clearified by Chevrolet. The specs they released have
> not indicated just what was done, if anything. It was probably the 
> Marketing
> dept. that made the improvements.
>
>
>
> What was the difference between the 102 hp engine and the  standard 80 hp?
> (The 61 Shop Manual mentions a difference but doesn't go into  detail.)
>
> Well, I'm assuming you already know about jet sizes so the only other 
> known
> difference is in the venturi clusters. Also the early carbs were different
> than  the late carbs in more than just the removal of the external vents. 
> See my
> book,  Corvair Rochester Carburetors for more information.
>
>
>
>
> Thanks,
>
> Jim
>
>
>
>
>
>
>
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