Load for timing? (evo8)
#1
Load for timing? (evo8)
On the EvoX's, there's a separate load for timing and mivec, as well as fuel. Is there a separate load for the Evo8's timing? I'm on rom 94170715.
The reason I ask is because as I'm tuning, the knock-free logs are showing (ie: 5 degrees at 4500rpms, load 270), and when I look that up in the rom timing table, it's actually (ie: 7 degrees) at that data-logged cell. It doesn't show 5 degrees until load 290.
I know I have a boost leak at the throttle body shaft seals, so I'm suspecting this could be throwing me off.
The reason I ask is because as I'm tuning, the knock-free logs are showing (ie: 5 degrees at 4500rpms, load 270), and when I look that up in the rom timing table, it's actually (ie: 7 degrees) at that data-logged cell. It doesn't show 5 degrees until load 290.
I know I have a boost leak at the throttle body shaft seals, so I'm suspecting this could be throwing me off.
#4
Evolving Member
Its the Timing trims mate,
Air intake temp etc all contribute to what the car is actually going to run, just because its target timing is 7 doesnt mean it will hit it
Whoops must have posted at the same time, but as above lol
Air intake temp etc all contribute to what the car is actually going to run, just because its target timing is 7 doesnt mean it will hit it
Whoops must have posted at the same time, but as above lol
#6
So what I'm seeing is that it's better to tune in the cold (45-68 degrees ideally) and then the other temps will run safer because it auto-retards the tune?
Or...tune it in the hot weather and then overshoot my targets so that in 45-68 degree weather, it will be spot on? (which is what seems to be what I'm having to do)
Or...tune it in the hot weather and then overshoot my targets so that in 45-68 degree weather, it will be spot on? (which is what seems to be what I'm having to do)
#7
Evolved Member
iTrader: (14)
I would tune right now and disregard the retard timing, because no matter what, your values now should have the effect of overshooting when the temps drop.
That way, when you retune in colder temps, you can compare the differences, and set the trims accordingly
Unless someone has a definitive value for the correct amount of trim to set... which im not going to bet on
but dont listen to me, I just started this. Just wanted to contribute some logic
That way, when you retune in colder temps, you can compare the differences, and set the trims accordingly
Unless someone has a definitive value for the correct amount of trim to set... which im not going to bet on
but dont listen to me, I just started this. Just wanted to contribute some logic
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#10
I would tune right now and disregard the retard timing, because no matter what, your values now should have the effect of overshooting when the temps drop.
That way, when you retune in colder temps, you can compare the differences, and set the trims accordingly
Unless someone has a definitive value for the correct amount of trim to set... which im not going to bet on
but dont listen to me, I just started this. Just wanted to contribute some logic
That way, when you retune in colder temps, you can compare the differences, and set the trims accordingly
Unless someone has a definitive value for the correct amount of trim to set... which im not going to bet on
but dont listen to me, I just started this. Just wanted to contribute some logic
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