Are you using your AFR spark correction table or not? please discuss
11-30-2006, 11:27 PM
#12
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Originally Posted by Black02SS
You are correct LC isn't available on any US vehicles as it is physically turned off in the file itself regardless of what we set the tables to.
Originally Posted by dc_justin
Since PE mode is enabled by MAP and Throttle Position, and not directly linked to airmass, I prefer to keep the higher load regions of the high octane spark table a bit on the lower side (generally from 0.56+ on a 5.3L) and add the timing back in through the correction table. That way when it's a bit colder out, or your driving style is different than normal and you manage to hit these cells in closed loop you won't get the knock that you would see otherwise.
Total timing ends up the same at heavy throttle while part throttle acceleration is not noticably altered and the overall number of kr spikes are reduced in most vehicles I'm working on.
Total timing ends up the same at heavy throttle while part throttle acceleration is not noticably altered and the overall number of kr spikes are reduced in most vehicles I'm working on.
am I missing something.
12-01-2006, 12:13 AM
#13
Originally Posted by desTRUCKtive
So how that heck are you using the tables if according to black02ss they are turned off? am I missing something.
am I missing something.
12-01-2006, 10:07 AM
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My tune is still running the stock Spark Advance Correction Vs AFR Vs RPM. It still does not account for the total spark I see at WOT. There is something else at work there as well. Check out a stock bin file to get an idea of where to start with this table.
12-01-2006, 11:21 AM
#15
Originally Posted by Mort
My tune is still running the stock Spark Advance Correction Vs AFR Vs RPM. It still does not account for the total spark I see at WOT. There is something else at work there as well. Check out a stock bin file to get an idea of where to start with this table.
12-02-2006, 11:58 AM
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Thanks Justin I should look at those and figure out what is accounting for the Total timing I see. The AFR adjustment seems to be the largest factor but it would be good to understand how those tables are used together.
12-02-2006, 07:34 PM
#17
When I am working with timing I log lots of timing stuff. as DC_Justin mentions,IAT, ECT and always burst knock. Here is a screen shot of burst knock at work. All the timing pulls in this shot, 150 and 160KPA is burst knock. I'll start logging the AFR timing and play with it when I get to that part of my tuning.
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