[Vwdiesel] Rabbit droppings # 146 --- ( we DO learn ).

gary gbangs at cfl.rr.com
Thu Feb 24 22:59:40 EST 2005

There's a corollary here...

New nozzles, engine runs better, engine has more power, driver likes it,
driver keeps pedal mashed for longer periods of time because of the
smile factor.

In the end, more pedal less economy.


However, in day to day driving, a more efficient engine will require
less fuel to run => better mileage.

On Thu, 2005-02-24 at 19:35 -0500, Libbybapa at wmconnect.com wrote:
> Theory: new nozzles and slightly higher breaking pressures for injectors 
> makes for better spray patterns and finer overall atomization.  That leads to a 
> more complete burn.
> Experience:  New Nozzles = No Smoke.  If after changing nozzles, one 
> increases fueling until a bit of "fog in the headlights" appears, then mpg's suffer.  
> I've noticed it fairly dramatically in my TD vanagon.  There is a nice spot of 
> no smoke and decent performance.  When fueling increases from there, fuel 
> economy declines rapidly.  Smoke increases rapidly also.  That's my experience so 
> far.
> Andrew  
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