candela
20+ Year Contributor
- 3,589
- 4
- May 10, 2002
-
Austin,
Arizona
Haha, I put some 100 octane in my car yesterday, and holy nutts can you run a lot of boost like that. heres some logs, first one was at 15 psi, then the second was at 17psi Ill just show the second one
2nd gear:
300rpm...1 knock...20deg... o2 .96
4500rpm...0 knock...18deg....o2 .96
5500rpm...0 knock...23deg... 02 .94
6200 rpm...1 knck...21deg... o2 .94
7000rpm...0 knock...17deg... 02 .94
3rd gear:
5100rpm...0 knck...19deg... o2 .94
5750rpm...0 kncok...22 deg...o2 .94
6100rpm...0 knock...22 deg...o2 .94
6400rpm....0 knock...21deg...o2 .94
6750rpm...0 knock...18deg....o2 .94
6906rpm...0 knock...18deg...o2. 92
I forgot I put in the 100 octane yesterday, and just remembred after I looked at how much timing I was getting. Air temps were 119deg the whole time, nd coolant temp was 199deg solid. Usually when its this warm out, I get much less timing and a tiny bit o knock. Ill have to retune when i put back in the 91 octane but for now Im going to run it like this while I can. I know I could run a lot more than 17psi right now, as those o2's are pretty rich, egt's were only at 820*.My high fuel trim was at 96%, mid was at 92% and my low was at 134%, could some one explain to me how I can apply the fuel trims for knowledgable or tuning purposes. Thanks
2nd gear:
300rpm...1 knock...20deg... o2 .96
4500rpm...0 knock...18deg....o2 .96
5500rpm...0 knock...23deg... 02 .94
6200 rpm...1 knck...21deg... o2 .94
7000rpm...0 knock...17deg... 02 .94
3rd gear:
5100rpm...0 knck...19deg... o2 .94
5750rpm...0 kncok...22 deg...o2 .94
6100rpm...0 knock...22 deg...o2 .94
6400rpm....0 knock...21deg...o2 .94
6750rpm...0 knock...18deg....o2 .94
6906rpm...0 knock...18deg...o2. 92
I forgot I put in the 100 octane yesterday, and just remembred after I looked at how much timing I was getting. Air temps were 119deg the whole time, nd coolant temp was 199deg solid. Usually when its this warm out, I get much less timing and a tiny bit o knock. Ill have to retune when i put back in the 91 octane but for now Im going to run it like this while I can. I know I could run a lot more than 17psi right now, as those o2's are pretty rich, egt's were only at 820*.My high fuel trim was at 96%, mid was at 92% and my low was at 134%, could some one explain to me how I can apply the fuel trims for knowledgable or tuning purposes. Thanks