<VV> [FC] 84hp powerglide MPH--------140 conversion?????

[Bruce Gwyther]

Mike,
    Two things that I would at: 1) The van probably has a 3.89 diff. in it, 
2) check the torque converter.  Yes I would use the 140 motor, but with a 
3.55 diff.  A bad converter can destroy fuel milage. Also check the vacuum 
modulator (oil in vacuum line).  I've never had an FC of any kind that got 
less than 17 or 18 mpg (even my limo).  Most get well over 20 mpg. 
Bruce


----- Original Message ----- 
From: "Mike Moyer" <vairvert67 at yahoo.com>
To: "virtual vairs" <virtualvairs at corvair.org>; "corvanatics" 
<corvanatics at corvair.org>
Sent: Wednesday, July 30, 2008 11:27 AM
Subject: [FC] 84hp powerglide MPH--------140 conversion?????


My new 63 Corvan 84hp powerglide is getting very poor gas mileage .(13.5mpg) 
I have tried just about everything to do better but to no avail. I am at the 
point and starting to believe it is just too under powered. My 65 Brier 110 
4spd got close to 20mpg .
I need to pull the engine due to an oil leak so am thinking about installing 
a rebuilt 140hp powerglide motor I had slated to install in a 68 coupe(Sold 
the car due to to many projects so engine just stilling there)
If I do so I will pickle the 84 hp and save for future owner if i ever sell 
it for sake of origionality
Any thoughts either way?
Mike Moyer
CorvanAntics Editor
1963 Corvair 95 84hp Powerglide 18K miles
1965 Greenbrier 110hp 4 Spd
1965 Monza Convertible 140hp 4spd 3:55 Posi AM/FM



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