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Help a wiseman out : meth tuning

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blcknspo0ln

DSM Wiseman
7,772
101
Jul 31, 2003
Central, New Jersey
Any help? I'm going to do more tuning later, but sometimes it's nice to take a step back and hear advice too :) here's my excerpt from my dsmlink post:


Here is my first log running the snow performance 2D kit. I used a 625 ml/min nozzle and start psi is 5 psi, full is 15 psi.

What changes can I make to better tune this?

A couple questions. I used a whole tank of regular 50/50 windshield wiper fluid and added a bottle of HEET. I still get knock (of course not nearly as bad as before) during a 3rd gear pull. Should I try adding more methanol or should I put another nozzle in (I have an extra bung welded on)?

Also, Any idea why my boost is dropping in the upper RPM's? It is a PTE 5031RE bolt on turbo with 280s + JMF SMIM and boost leak tested to 30 psi. Is it just because of the small hotside? I would have thought it would hold more boost than that in the upper RPMs?

Is my MAF calibrated correctly? or does it stand to use more tweeking?

Lastly, why am I getting a rev cut at 8k, is there a setting I messed up? As soon as I rev out to 8k the car automatically feels like an ignition/fuel cut? I know it has to be related to the NLTS/antilag settings because it started happening when I checked the boxes off.

3rd gear log
 
You could try a Higher % Meth, I run closer to 80-90% Meth.

Also I'd say you've got the Turbo basically maxed out hence the boost falling off.

With the clutch cut activated you have to make sure your foot isn't lightly resting on the clutch pedal right before the shift or you will activate it.
 
I would add more meth.

At 5.94 seconds in the log antilag and nlts was activated. You can tell by looking at the timing, tps, and idc. The timing is at -10 degrees and idc is at 0% even though you were still full throttle. You must have just touched the clutch pedal.

The maf calibration looks pretty good. If anything I would add 1 or 2 percent to the 2000hz slider.

I have no idea about the turbo not holding boost. My g-50 holds 28psi to 8,000. But I have fp2's and a stock intake manifold. Your cams and intake might be outflowing the turbo.
 
At 5.94 seconds in the log antilag and nlts was activated. You can tell by looking at the timing, tps, and idc. The timing is at -10 degrees and idc is at 0% even though you were still full throttle. You must have just touched the clutch pedal.

Nice man :thumb:

On my vastly different setup, I settled on around 80% meth. That seemed to work the best.
 
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