Help me tune!

[1glaserturbo]

I've attached two seperate logs, one that I did two weeks ago and the car had barely any knock, the second is one I just did. I pulled 3% fuel from 5k up on the second and also pulled another degree of timing from 5k up but I'm knocking even more! What the hell, help!

 

[phunny]

First off, if you remove fuel, you will knock more. When you start knocking u either add fuel or take out timing.

After looking at your log I would:
1. Zero the timing and fuel sliders.
2. Insure your global and deadtime are correct.
3. Make a pass and watch your Wideband gauge.
4. Take out fuel until your A/F guage is around 10.5-11.2.
5. Then slowly start adding in timing until you see knock, then back the timing off 1 degree.

 

[1992awdlaser]

What does your wideband gauge read? Based on the o2 sensor voltage I would have to say the car is running leaner than your logged wideband readings.

What does your boost gauge read?

 

[phunny]

Yeah def., that's why I'd log with the gauge.

 

[1glaserturbo]

What does your wideband gauge read? Based on the o2 sensor voltage I would have to say the car is running leaner than your logged wideband readings.

What does your boost gauge read?

PLXWB is my wideband readout, 11.1ish

19lbs

Yeah def., that's why I'd log with the gauge.

I always log with a wideband, it's just a kamikaze without it

 

[phunny]

He means with the physical gauge and not the wb input on dsmlink.

 

[1glaserturbo]

He means with the physical gauge and not the wb input on dsmlink.

Why would it read any different (It doesn't)

 

[phunny]

You're lucky.

 

[1glaserturbo]

You're lucky.

If everything is installed and wired correctly (see solder and heatshrink near the ecu) then you shouldn't see anything more than maybe a few tenths of a difference. (maybe 1-3 if it's bad)

 

[phunny]

AEM WB is known for not reading right on dsmlink.

 

[1glaserturbo]

AEM WB is known for not reading right on dsmlink.

It's not AEM sorry. Here is my list (for the VR4)

SBR G60
750cc injectors
Rewired 255
Full exhaust
272/272
Stock compression
PLX

 

[phunny]

I guess you can skip the step about setting your deadtime then.