oztracktuning
January 31st, 2006, 12:26 AM
What is the value of running large advance numbers at low g/cylinder values.?? Mine ramps up quickly at below 0.48g/cylinder and by 0.28 is almost 40 degrees - this is above 2400rpm , below 2400 there is less as it is blended away - even more so at 0.08 and 0.12g/cylinder below 2400rpm where it is down to 26 degrees.
What are the benefits of these numbers? Mine is very close to the stock numbers for a 03 HSV GTS auto.
Can better fuel economy be found by adjusting say at 100kph.
My car gets around 30MPG at 110kph (68mph) at 0.21g/cylinder at 2400rpm and 40 KPa MAP - it has 38.5 degrees timing.
At 92kph (57mph) 2000rpm and 0.18g/cylinder and 37 MAP it only has 33 degrees timing. But my economy i feel should be better at this speed. (the idea is maybe it should have more timing here??)
I guess that better economy can be found by finding the best timing numbers in these cells.
What are the benefits of these numbers? Mine is very close to the stock numbers for a 03 HSV GTS auto.
Can better fuel economy be found by adjusting say at 100kph.
My car gets around 30MPG at 110kph (68mph) at 0.21g/cylinder at 2400rpm and 40 KPa MAP - it has 38.5 degrees timing.
At 92kph (57mph) 2000rpm and 0.18g/cylinder and 37 MAP it only has 33 degrees timing. But my economy i feel should be better at this speed. (the idea is maybe it should have more timing here??)
I guess that better economy can be found by finding the best timing numbers in these cells.