Thread: Road tune
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Old 08-27-2014, 09:16 AM   #23 (permalink)
bleunetizen
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Just done another logging after the tune, the A/F went leaner than before by about 0.3~0.5 overall, I think its to do with colder air temp at night.. its about 10degC cooler now.

Hopefully those of you wanting to tune the car yourself will find this useful.

You can see that it is running considerably more timing than the last map, hence the power gain. The MAF reading seems slightly high also, probably reflecting the power gain there also?

In short, what I did was just adding stupid amount of number into the VHR timing map, it does not add more timing after certain amount, and the car did NOT knock AT ALL.

I am guessing that for NA, dyno tune may not be really necessary, just try and run as much timing as possible and call it the day.

I was expecting to hear the knock or see the power dropping off, but none of these happened. Each timing increase also resulted in power gain and I kept on adding numbers wanting to run more timing, it hit the wall and would not go up any higher, so I just called it the day.

I think I should have played with the VVEL C table more. Apparently this is exactly the same as what the log shows. Should try increasing/decreasing the entire value by 10deg or so and do the power run and compare the differences..
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