<VV> If the General says (85 mpg carburetor)

Ron ronh at owt.com
Mon Apr 18 00:00:12 EDT 2005


The so called waste heat comes from the basic Carnot cycle and cannot be 
altered.  The increase in mileage comes from more complete combustion due to 
the efi and better engine design (which provides more heat) and reduced 
friction and rolling resistance.  The carburetor is completely out of the 
picture now and as you note, no car in the world is getting 200 mpg, or as 
Pogue claimed, 200 miles per pint!
RonH

----- Original Message ----- 
From: <NicolCS at aol.com>
To: <virtualvairs at corvair.org>
Sent: Sunday, April 17, 2005 8:32 PM
Subject: <VV> If the General says (85 mpg carburetor)


>
> 85 mpg carburetor/  Sure, right next to your soon-to-be-delivered 
> Brooklyn
> Bridge!  It's not the carburetor - with EFI we can have "perfect" 
> carburetion
> and we don't see 85 mpg do we?  It's the efficiency of the  engine. As I
> recall, engines are about 30% efficient, the balance of the  gasoline's 
> power goes
> to waste heat (exhaust, radiator, friction) and the  creation of vacuum. 
> A
> "good" carburetor (i.e. EFI) will reduce some of the  waste heat, that's 
> one of
> the reasons why a Cadillac today will get 30 mph on  the highway, but good
> "carburetion" won't reduce engine  friction.  Reduced friction is the goal 
> of
> have roller rockers, 0W-30  oil, and low tension rings. That's also why we 
> have 4
> and 6 cylinder engines  today (a four has almost 1/2 the engine friction 
> of
> an eight).   Slowing the engine down through "overdrive" gearing also 
> reduces
> engine  friction and helps lower engine vacuum, both of which boost fuel
> economy.   (Low engine vacuum boosts fuel economy - except on carburetors 
> with
> vacuum  operated power valves).  I can't believe that we still hear the 
> rumor of
> the "85 MPG carburetor that Godzilla and the big three kept on the shelf"
> Does that story have legs or what?!
> Craig (hiding the true 100 mpg carburetor) Nicol
>
>
>
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