<VV> 140 HP fuel consumption

[Michael Kovacs]

Not counting the secondaries, you should get at least the same mileage as a 110. 
The bigger valves and exhaust system should make it run well. Yes, we know the 
cam, heads and distributor are different.

 MIKE KOVACS



----- Original Message ----
From: David B. Neale <david.neale3 at ntlworld.com>
To: virtualvairs at corvair.org
Sent: Tue, April 26, 2011 4:54:13 AM
Subject: <VV> 140 HP fuel consumption

The rising price of fuel understandably exercises Corvair owners.  A (US) gallon 
of fuel here in England is now, in my area, a little more than $8.  Each week 
sees the price increase by a penny or so.

In the case of 140 HP engines, provided that the secondary carburettors are not 
opened, and assuming that the carburettors are in good order and adjusted 
correctly, is there any reason why the fuel consumption would be any worse than 
for engines with just two carburettors?  Naturally, if the secondaries are 
opened, there must be an increase in consumption. However, in 'normal' driving, 
is there any significant penalty in fuel consumption in the case of engines with 
four carburettors, where the secondaries are not activated?

With the price of fuel being what it is, I would consider removing the 
secondaries from my engine, but if there is no significant penalty when driven 
such that they are only  very occasionally activated, I suppose there would be 
little advantage in removing them.  


Can anyone advise, please? Thank-you!

David Neale
Leicestershire, England

'65 Monza convertible with 4-speed and 140 HP



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