Thread: Ignition advance

I can check it for you tomorrow Pedro; can't drive a the moment

Irrespective of the cause, the ECU with knock sensors should be taking care of it and retarding ignition etc.

Garry

Agree Garry,, I searched through Torque but couldnt find a knock sensor to check,,
It seems after a moments inattention the "Premium" unleaded i was pumping was actualy 95 premium,,,, the pinging started after that.
I,m really interested in what advance these engines should run under high load at 2k revs or less.

I assume that as you posted in the D2 section, that we are are talking a 4.0 Thor or maybe a 4.6 upgrade. These have knock sensors either side of the block just under the centre of the exhaust manifolds.

I cannot answer your question but my logic would go something like this: If it were a dissy engine OEM setting at idle is about 3 degrees though most people will run around 9-10 which at idle will be about yours will run - it will run as much advance as possible with the ECU clocking back when it detects knock starting. - Now at max revs most engines run about 45 to 50 advance (I do not know what the Rv8 does) so at 2000rpm my guess would be somewhere around 20-25 degrees.

Good luck

Garry

The motronic has a very aggressive timing map... not unusual to hear a little rattle when hot blipping off idle on the high comp ones. They seem to advance up to the point of detonation too if on a constant throttle setting for a bit... all in the name of efficiency apparently 😯

Jc

At idle 12 and at 2000rpm 25. WOT going up part of Mt Tamborine 26. Interesting though, in first at 2000rpm 36.

Later when I'll have somebody else in the car to read the Nanocom I'll go through gears at high rpm and see what it reads.

Under load (caravan) at around 80 in top it shows 10-12,,
in fact any time just before kickdown happens it around that,,
show over 40 at 100 cruise.