View Single Post
Old 03-05-2012, 01:29 PM   #8 (permalink)
bestclimb
Smeghead
 
Join Date: Oct 2009
Location: South Central AK
Posts: 933

escort - '99 ford escort sport
90 day: 42.38 mpg (US)

scoobaru - '02 Subaru Forester s
90 day: 28.65 mpg (US)
Thanks: 32
Thanked 145 Times in 97 Posts
vern if you are pulling the lever out for and it is making a mileage difference you may think about adjusting the injector timing.

my understanding of the VW injection system is that while pressure to the injector is over x value a spring allows the injector to open.

in the pump if a pressure measuring device "knew" when the injector was opening and closing by sensing the pressure in the line (vw uses a variable stroke injector pump) longer stroke means higher flow rate and longer duration with the injector open. that information could be fed to an MPguino.

What we would have then is frequency and duration which is handled well by MPGuino, unfortunately duration and volume of fuel is probably not linear, but that could likely be solved with software.
__________________

Learn from the mistakes of others, that way when you mess up you can do so in new and interesting ways.

One mile of road will take you one mile, one mile of runway can take you around the world.
  Reply With Quote