1298 : i dont understand bro, so does this means dat knock and ping r two different things? ping usually is caused by overadvancing the ignition timing, and ive read sumwhere dat knock is the sound u hear when ping occurs, so i tot the two of them r the same thing, or at least caused by the same thing. guess i was wrong, ya
in charged engines, or at least in the one iam using, advancing the ignition timing in lower revv range wud give me better acceleration compared if i were to stay wit the factory setting. ignition timing in a charged engine is advanced during off boost, and retarded when boost kicks in, dats fundermental / logic. setting the afr lean at lower revv is okie, since, like the case of overadvancing ignition timing, the temp is considerably cool hence letting u set afr AND ignition timing as high as possibly, safely, means u shudnt let the engine knock (ping? iam a bit confused now, will confirm after reading more about dis)
in any case, my engine's std ecu wont let me to advance more den 10 degree, it will retard the ignition timing if i do advane more then dat. its sum kinda safety feature, safety indeed dat it wont let me have sum extra fun. hoho..