12:1 afr for daily use?
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12:1 afr for daily use?
Anyone running 12:1 afr on 91 for daily use? I was playing around with my afr and tuned it to 12:1 through most of a 3rd gear pull. I did not get any more knock than my previus 11.3:1 tune. Also according to my ECU+ dyno I picked up a few ponies and flatened out my torque curve. The big concern for me is that I am not monitoring egt so I am guessing that 11.3:1 my be a better bet. Mods are 3 inch tbe, blitz intake cover, green filter, mbc set to 22 psi that tapers to 19 and sun hyperforce. Any input?
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Originally Posted by jmoudry
Anyone running 12:1 afr on 91 for daily use? I was playing around with my afr and tuned it to 12:1 through most of a 3rd gear pull. I did not get any more knock than my previus 11.3:1 tune. Also according to my ECU+ dyno I picked up a few ponies and flatened out my torque curve. The big concern for me is that I am not monitoring egt so I am guessing that 11.3:1 my be a better bet. Mods are 3 inch tbe, blitz intake cover, green filter, mbc set to 22 psi that tapers to 19 and sun hyperforce. Any input?
#11
Originally Posted by jmoudry
I can post my timing map. I use a ECU+ for logging instead of evoscan. Currently I have switched back to 11.3 afr and bumped the timing a little.
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Originally Posted by jmoudry
I have a ECU+ piggy back that monitors the knock sensor voltage and I have a LC-1 wideband.
Trust me when I say the knock voltage is not telling the whole story. I was using ecu+ alone for logging and thought I had a good knock free tune, until I logged a few runs with evoscan.
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Every once and awhile I run evoscan just for a sanity check. But I am going to stick with the 11.3 afr for safety. I am really concerned with leaning out the afr without egt measurements. Thanks for the input guys.
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Originally Posted by ONRAILS
man is it just me or does his timing map look way too conservativle.
We also don't know what load cells he's hitting.. Its possible he's also hitting those lower load cells due to the ECU+, he may be altering the MAF reading to do that since it indirectly leans out the fuel and timing by running in lower load cells.
In any case, even at lower load cells, the tune is conservative for the most part.