Base Timing

[Unilevers]

6/6 on a 4/6 engine works - but is fooling it. i DO NOT recommend it because you literally are guessing at timing, and the numbers 4 and 6 MEAN NOTHING for actually injection timing they are just the angle of the wedge vs some reference line. Going to 6 from 4 does not advance the timing 2 degrees, it is more than that. Also if you wedge a 4/6 engine at 6/6 and are sloppy with the setting you are riding the edge of what the ECM sees as acceptable timing. It will throw a cam/crank sensor out of whack code and derate you to almost nothing because it sees too far a spread between the cam and crank.

it also screws up when someone proper goes to tune that engine. Tweaking SOI and fueling for what its supposed to be and then actually finding out later that it was mechanically advanced can be troublesome and have catastrophic failures if not caught early.

simply put - wedge the dam thing what its supposed to be. If you want to play with timing tell the ECM to do it, not fool it!