Acer
November 19th, 2006, 11:12 PM
Have you ever noticed how hesitant the LS2 engine is to rev smoothly past 2000-2500 rpm when it is not up to operating temperature? Having a look at the factory tune I can see why. GM have actually introduced Cold Engine Mechanical Noise reduction in the form of several tables under Engine>Spark>General. These pull as much as 16 degrees out of the advance curve:Eyecrazy: !
I am careful not to thrash a cold engine but didn't like the way it felt when cold. As a test, I changed the max. reduction from 16 to 11 degrees on the weekend & the car feels better without any noticeable increase in noise.
Cheers,
Michael
I am careful not to thrash a cold engine but didn't like the way it felt when cold. As a test, I changed the max. reduction from 16 to 11 degrees on the weekend & the car feels better without any noticeable increase in noise.
Cheers,
Michael