[T3] Looking for data sheets

[Daniel K. Du Vall]

All this talk of MPG and AF I need to put my two $$ worth in.

The "ideal" of 14.7 is the same at any altitude. What changes is the amount of Air. If you increase the amount of air you have to increase the amount of fuel This is what affects the MPG.
What you get with a turbo is the rise in air density and with each increase you can add additional amounts of fuel reverse this for the opposite affect. 

The diesel engine is a good example it is essentially wide open throttle all the time what is varied is the amount of fuel added to the combustion chamber. 
When the turbo was introduced it open up the ability to increase the amount of fuel if needed and also the volumetric efficiency of a given engine.

And as always I can stand corrected on this but its what I do remember from my schooling when I knew everything already as a youngster ;-) 

Daniel Du Vall
http://1peter4-10.org
http://volkswageninsanity.us

-----Original Message-----
From: type3-vwtype3.org-bounces at lists.vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org] On Behalf Of Max Welton
Sent: Sunday, January 27, 2013 7:37 PM
To: type3 at vwtype3.org
Subject: Re: [T3] Looking for data sheets

> It's not the A/F. It's the air drag. We all got better gas mileage at 
> altitude on the various Invasion caravans.
> 
> The D-Jetronic system handles altitude with no problems, but being a 
> normally aspirated system makes for less power at altitude.
> There's
> no way around this without some sort of supercharging.

Ah. Less drag at any given speed. Makes sense.

I would still love to know what A/F ratios the D-Jetronic system generates. That would be useful information.

Max Welton
http://www.maxwelton2k.net/
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