Timing advance on an L77

[Crossfetch]

Hi Guys,

I have a VE SS with an L77 in her. I feel like I'm having a problem with timing. I'm running a max about 16-17 timing advance at WOT. Now, even with that timing, I still get about 3 degrees of knock every now and again which I find unusual because it isn't consistant at all. I don't have my WB hooked up yet to do VE table but when I had it on the dyno AFR was around 12.4 the whole run which I have on the PE table. With that timing it made around 265kw (I have an OTR, Walkinshaw full exhaust and extractors). I've been reading they're happy around 20ish degrees but I can't seem to hit that at all with 98, E85 can hit about 21 degrees. Can any inlighten me on this? Attached is tune.

Cheers

[Mr.z0611]

It might be burst knock. Log it and check.

[Crossfetch]

Whats the best way to disable burst knock?

[5FDP]

Set the base vs cylair delta table to all zero's.

[Crossfetch]

They are already 0'd out

I'm sure it's still burst knock as I've bliped the throttle on downshift and can see the burst knock.

I've attached a log from the other day - Seems to be a fair bit of knock everywhere.. Doesn't make sense to me

Burst knock.hpl

[5FDP]

The tune file you posted does not have the table zero'd.

ECM table 12765 still has values of 3 degrees in last 4 rows.

That idle timing looks like garbage too, no idea why it's setup like that.

[Crossfetch]

Sorry about that, it would help if I upload the right tune.