TD04 Timing setup

[Weyro]

Running my car on standard ecu and SFC, wondering if I should have the timing retarded to run 1bar.

Afrs are sweet and car goes well, just thinking about making it run safer.

If so, how much?

Cheers

[AdamB]

You can reduce the ignition timing, but you'll also loose top end power.

I would still suggest a check on a rolling road where the AFR and knock levels can be monitored. If you are experiencing any knock you could reducing the ignition timing, or retard the valve timing to lower cylinder pressure.

If your unsure and can't get to a dyno, reduce the ignition timing by 2-4 degrees, however do expect the car to end up pretty sluggish.

[Weyro]

OK probably best to take it to a dyno then lol

Ive got it set running 11.2 afr from full boost to 11.4 at redline. Would you say this is a bit rich or just right?

Running 99 octane.

Cheers

[AdamB]

Personally you could prob lean it off a little since the td04 is a much more efficient turbo than the ct9. However, the fueling should be setup according to where knock occurs as it is possible to reduce knock by running a richer setup as this makes the cylinder run cooler.

If you are unsure and can't help but put the right foot down a little it is advised to reduce ignition timing slightly to atleast save the engine as much as possible if anythign were to occur.

Edited February 25, 2013 by AdamB