For giggles, my first log - it's ugly

[4TEHW]

More information in the log notes: http://www.whitehack.org/Predator%20Logs/s2r0t044.log

I want to get a full 3k-6.2k RPM log, but it's hard to find the space on the freeway, heh. I won't be doing much in the way of tuning/logging until I get my exhaust and boost leaks fixed. This log was just to get a base of sorts to see what was going on. I'm using the canned 93 octane tune with modified timing and fuel to reduce knock.

The thing that bugs me the most at this point, aside from my horrible timing, is my ACT going from around 48 to 77. I have no basis for comparison, so I'm not sure if this is an acceptable temperature, or if it's horrible and my DFMIC is a piece of junk. I'd love more input if anyone has any.

[duster360]

Timing
It does look particularly low,,at least lower than most other logs. I thought it might be the high ECT and ACT but after checking several member's logs they're not that far out of line as I thought.

I'm thinking its just the slow rate of change in RPM that makes the timing look lower. Check the log I emailed you titled "TheGame_4th_1.log". Its a 4th gear log also with similiar ECT/ACT and timing. His timing is a 2-3 degrees higher after 4500rpm but he has no ST/LT Knock


IC
To check your DFMIC efficiency you need to check the Pre IC temps. If boost leaks are causing ususally high outlet temp the ACT might not be too bad.

Knock
You have a bit of Long term Knock(1.5degrees) after 4K rpm

[4TEHW]

Quote: Originally Posted by duster360

Timing
It does look particularly low,,at least lower than most other logs. I thought it might be the high ECT and ACT but after checking several member's logs they're not that far out of line as I thought.

I'm thinking its just the slow rate of change in RPM that makes the timing look lower. Check the log I emailed you titled "TheGame_4th_1.log". Its a 4th gear log also with similiar ECT/ACT and timing. His timing is a 2-3 degrees higher after 4500rpm but he has no ST/LT Knock


IC
To check your DFMIC efficiency you need to check the Pre IC temps. If boost leaks are causing ususally high outlet temp the ACT might not be too bad.

Knock
You have a bit of Long term Knock(1.5degrees) after 4K rpm

What is LT in relation to ST? I know ST is basically the 'current' knock...is LT the "learned" knock from patterns of ST knock? And if so, is the only way to remove it to reset the PCM or do several pulls with lower ST knock so it eventually relearns and updates the LT knock?

Also, how would I check my PRE IC temps? I'm guessing another sensor, heh?

[duster360]

Quote: Originally Posted by S2R0T044

What is LT in relation to ST? I know ST is basically the 'current' knock...is LT the "learned" knock from patterns of ST knock? And if so, is the only way to remove it to reset the PCM or do several pulls with lower ST knock so it eventually relearns and updates the LT knock?

Also, how would I check my PRE IC temps? I'm guessing another sensor, heh?

Knock stuff: All correct

IC temp: Yes---Just off the top of my head and a bit over the top: you could extend the Ambient Temp sensor wiring. Drill a hole in the hot pipe, then plug it up with a 1/4" pipe plug.

[Monster]

I have a log I did of 2nd and 3rd gear just to test things out. Where is a good place to upload it?

[4TEHW]

Quote: Originally Posted by Monster

I have a log I did of 2nd and 3rd gear just to test things out. Where is a good place to upload it?

Read the link in my sig. about sending me log files. Once I get the e-mail, your mods, etc. I'll upload it and send you the link so you can make a thread.