Track Logs KR

[Beer99C5]

What can this KR be....??? Beginning of run hits 9.9 and then trails off???


12.9 leaving soft (first run having recently changed out Valve Springs---had 4 broken outter and 1 broken inner valve springs )



12.7



12.0 50 shot dry intermittently spraying

[joecar]

Hmmm... it looks consistent... check the following:
- oil is now getting past PCV catch can.
- spark plug gap is now bigger than 0.040" (I don't think this is it).
- loss o f coolant.
- air leak.
- other.

[SSpdDmon]

Might be time for new knock sensors too...my '99 needs 'em. :(

[TFZ_Z06]

If you are hitting the juice low rpm and at almost 30deg spark, thats likely it.
I never engage the juice below 3000rpm. I see your nitrous pressure is ok, but were you using nitro at low rpm?

[Beer99C5]

If you are hitting the juice low rpm and at almost 30deg spark, thats likely it.
I never engage the juice below 3000rpm. I see your nitrous pressure is ok, but were you using nitro at low rpm?

Spray was set for 2800 Dry

Stupid Question could the KR be actually the TC kicking in? Seems the KR would be a function of RPM / load, and it looks like it is tapered off at a steady rate...As well each of the three runs it went to 9.9 initially...


Joe I will check the Catch can, the plug gap are .035 fresh set of plugs added this week.

[SSpdDmon]

Stock cam? Where are your burst knock settings?

[Beer99C5]

Stock cam? Where are your burst knock settings?

Cam is Comp Cams 224/228 @ 114 .58x lift

I have to Download the tune, it was street tuned with the bad springs on it when I got my driveline done (RPM level 5 A-4 Yank 3000 and ZO6 rear).

What is Burst Knock?







Looks like my cylair goes from .15 to .49 and the KR kicks in...??? That does exceed the .030029 in the delta table

[SSpdDmon]

Burst knock pulls timing on throttle tip-in. Some people believe it to be unnecessary, and therefore disable it. I personally disagree.

Shoot me a copy of your tune and I'll see what I can see when I get a minute this weekend. You may just have too much timing. SAJ79 at aol dot com.

[TFZ_Z06]

You might have to log TCC State and see if its on or not, at least then you will know its throwing retard in or not.

[SSpdDmon]

You might have to log TCC State and see if its on or not, at least then you will know its throwing retard in or not.

Yeah - it's a little confusing...

TC - Traction Control
TC - Torque Converter
TCC - Torque Converter Clutch

Who's talking about what?