how do you get 25mpg? the lowest ive ever seen from my car is 35. and that was with a pretty constant black cloud behind me too. and i wore a few thousand miles off my tires too.
With absolutely no compression, that's how.
What happens when you use such a rough grit??
Global financial meltdown...
OR
It would leave gouges in the surface not allowing it to seal properly.. Sort of like if you sanded the cylinder head surface with 20 grit..
Soo basically the difference between the two is Hiroshima and a Hand Grenade 
well there must have been some sort of trans dimensional rift when i lapped my injector parts with 600 onto 1,000 because im now getting 5.5L/100km. Yeah i guess i "found" the right pop pressure?
you guys take this crap way too seriously
or am i just lucky?
Noo way man people just take it too seriously.. us youngens are just irresponsible
and foolish. lol
I'd be willing to bet that any sort of rebuild done by the book is probably gonna be more precise than it was from teh factory... I'm sure the VW factory builds things closer to tolerances than say Dodge, but with thousands of units passing though If they run half decent they go out the door...
And Eddy, now that you have found the magic pressure, rip those injectors out and check them so you can duplicate and share!!!
For the record I been runnin VW diesels for close 10 years now.. Didn;t own or touch any of the timing tools till last year.. Easy starts, decent power, and crazy mileage on every one