Logs from last nights' runs...

[mgm1979]

Few knock peaks...in each one...solid mounts?

Run 1: 14.005@100.15 Bradenton 1.hpl

Run 3: 14.037@99.06 Bradenton 3.hpl

Run 4: 14.163@98.99 Bradenton 4.hpl

Run 5: 14.068@99.43 Bradenton 5.hpl

[KSC]

I'd love to take a look, but I'm not sure how to open the file. What program is it?

[mgm1979]

Originally Posted by KSC

I'd love to take a look, but I'm not sure how to open the file. What program is it?

HP Tuners...Scanner.

[KSC]

Ah...nevermind!

I guess I can check them out some day.

[Mase]

nice runs.

looking at your best run: kinda strange how you got that dip at @5k in second also your VE seem very low, mine's like 300g/sec or 40lb/min at top end. Also increase your decay rate for knock as I see you get tons shifting.

[mgm1979]

Originally Posted by Mase

looking at your best run: kinda strange how you got that dip at @5k in second also your VE seem very low, mine's like 300g/sec or 40lb/min at top end. Also increase your decay rate for knock as I see you get tons shifting.

Forgive me...you're speaking Greek.

How? What? Where?

I'm still learning...

[mgm1979]

So, the knock is between that 2-3 shift...on all the runs except the last? Can the 0-100% TPS spike cause this?
Also had a little birdie tell me that it could have something to do with the "boost spike" or something - having to do with building all the boost, closing the throttle plate up all of a sudden, and then the PCM seeing knock and freaking out.

And...should I REALLY be seeing 37* of TA?

[Sp00ner]

37* is between shifts with the throttle closed, that's normal...

That's reall interesting how the knock occurs in the same spot with the same strength in 3 of the runs...

[mgm1979]

Originally Posted by Sp00ner

That's reall interesting how the knock occurs in the same spot with the same strength in 3 of the runs...

I thought so too...which is why I've been racking my brain about things I'M doing - came up with the shifting thing...coming off the throttle TOO much between shifts? When I mentioned this to G.M., he tossed out the "boost spike" theory causing the knock, b/c of the sudden/shock of closing the throttle plate with all that boost built up.
Without knowing as much as I'd like, my question would be in relation to WHEN that spike occurs. If the "spike boost" was the cause, wouldn't the KR show up sooner, rather than AFTER I mash the pedal again?

I'm debating taking the solid mounts out, one-by-one, and trying to figure out if THOSE are really the issue or not; But, I'm worried if they're NOT the issue, that I could possibly be causing OTHER damage in the midst of all the runs it would take to eliminate each of the mounts as a culprit. IDK

[Sp00ner]

Run my new tune and see if it's the same.... one thing I noticed on track, is that the intake temp timing adjustment is not optimal for higher intake temps. I would get knock at the end of my runs, when intake temps would be climbing. So I pulled additional timing for the high intake temps on my track tune... like 1 degree less timing as intake temps rose above 140-ish...