MBBOB
Member
When I installed the new engine, I aligned the pump to the same reference mark as the old engine. It started and has run great for 1600 miles now. I finally got it to a GM Tech ( who does side work) that knows diesels and has access to the GM Scan Tech. I asked him to get it as close to -1.50 as possible. He said my initial setting was -2.20 and he was only able to get it to -1.15 because every minor adjustment he tried to make took it way out. I will pick it up tonight and see if it runs better or even different.
My question is, how much difference ( feel / sound) is there from:
(-.50 to - 1.0 ) factory
-1.50 best economy
and -1.94 best performance
IIRC a 1mm movement changes the timimg 1 degree, so how do you get it dead nuts?
Should I attempt to get it to exactly -1.50? will the effort make that much of a difference?
I will be adding a Heath GL4 chip in the near future.
My question is, how much difference ( feel / sound) is there from:
(-.50 to - 1.0 ) factory
-1.50 best economy
and -1.94 best performance
IIRC a 1mm movement changes the timimg 1 degree, so how do you get it dead nuts?
Should I attempt to get it to exactly -1.50? will the effort make that much of a difference?
I will be adding a Heath GL4 chip in the near future.