<VV> Turbo fuel consumption problem

[kevin nash]

> 
> original message 
> Date: Wed, 13 Feb 2013 17:49:22 -0500 (GMT-05:00) 
> From: Grant Young < gyoungwolf at earthlink.net > 
> Subject: <VV> Turbo fuel consumption problem 
> 
> I have a friend who has asked what might be causing his turbocharged Corvair to be getting 
> very poor fuel mileage. While the first thought might be a carburetor problem, it was been 
> rebuilt recently and seems to work like it should - easy start, smooth idle, good acceleration 
> and boost and no driveability or gas fumes (rich) issues. He says he usually drives it spiritedly, 
> not wanting to get things carboned up, and is getting well under 10 mpg, sometimes only 4-5. Doesn't 
> seem to have a leaking fuel pump either. Just checking to see if anyone has experienced similar 
> issues or has recommendations on what to look for (other than Smokeys). 
> Thanks, 
> Grant 
> 
Grant- I think your friend needs to check that the odometer is still working correctly- 4-5 miles per gallon in a boosted corvair engine is just so silly rich he should be foulingplugs, and running waay rough. Many moons ago I was running a 45dcoe weber and was having a problem with pinging right before boost- so I did everything I could possiblythink of to richen the mixture under low vaccum conditions (right before boost)- this, of course, fattens the mixture waay too much at all other times- I was getting around 12-14miles per gallon with that set-up, and I was fouling alot of plugs. It was still not rich enough to run rough. Your friend has more than double the fuel consumption that my way too richcar had and is still not rich enough to run rough?? Something doesnt sound quite right there! I was boosting it everyday to try and keep the carbon deposits down. I did find that my odometer stopped working a short while after that!Kevin Nash