Thoughts on my knock?
Thoughts on my knock?
Is my timing still too far advanced? My AFR looks OK, right?
A few minutes later:
Code:
Time Timing RPM KnockADC AFR Knock Load Throttle 14453 16 2469 18 13.85 4 110 100 14578 15 2531 28 13.49 4 113 100 14703 14 2562 27 13.39 4 116 100 14844 14 2625 30 13.01 3 119 100 14969 14 2688 31 12.94 3 123 100 15094 14 2750 32 12.67 3 126 100 15219 13 2781 20 12.58 3 130 100 15344 12 2844 29 12.52 3 135 100 15485 11 2938 22 12.61 3 140 100 15610 10 3000 33 12.85 2 146 100 15735 9 3062 46 12.98 2 152 100 15860 8 3156 22 13.02 2 81 100 15985 7 3188 32 13.1 2 171 100 16125 6 3281 41 13.02 2 180 100 16250 5 3375 39 13.04 2 196 100 16375 5 3469 67 12.73 2 207 100 16500 5 3562 36 12.54 1 218 100 16625 3 3656 35 12.16 1 230 100 16750 3 3750 72 12.04 1 233 100 16891 4 3875 63 11.94 1 228 100 17016 5 3969 54 11.8 1 225 100 17141 4 4094 12 11.83 1 227 100 17266 4 4219 18 11.64 1 231 100 17391 4 4281 20 11.67 1 234 100 17531 4 4406 16 11.44 1 233 100 17656 4 4500 18 11.38 1 229 100 17781 4 4594 36 11.23 1 230 100 17906 4 4719 14 11.27 1 234 100 18031 4 4812 24 11.22 5 234 100 18172 4 4906 30 11.25 5 232 100 18297 4 5000 25 11.16 5 228 100 18422 4 5094 36 11.32 5 225 100 18547 4 5188 28 11.36 5 225 100 18672 5 5281 28 11.22 5 227 100 18797 5 5375 36 11.26 4 225 100 18938 7 5469 30 11.3 4 224 100 19063 7 5562 49 11.25 8 226 100 19188 4 5656 22 11.26 8 228 100 19313 4 5750 34 11.22 8 227 100 19438 5 5844 30 11.11 8 224 100 19578 6 5938 46 11.05 8 222 100 19703 6 6031 32 11.17 7 223 100 19828 6 6094 26 11.1 7 222 100 19953 7 6188 26 10.97 7 219 100 20078 7 6281 54 11 7 219 100 20219 8 6375 45 11.13 7 220 100 20344 8 6438 35 11.07 7 218 100 20469 9 6500 30 11.1 8 215 100 20594 10 6593 44 11.16 8 211 100 20719 11 6688 31 11.08 8 211 100 20860 11 6750 30 11.11 8 209 100 20985 11 6812 45 10.97 8 209 100 21110 11 6906 39 11.04 8 211 100 21235 12 7000 91 10.91 7 209 100 21360 12 7031 43 10.97 7 207 100 21500 12 7125 51 10.97 7 209 100 21625 13 7188 49 10.86 7 209 100 21750 13 7250 60 10.91 7 208 100
Code:
Time Timing RPM KnockADC AFR Knock Load Throttle 110578 12 2562 20 12.95 1 123 100 110703 12 2625 27 12.74 1 127 100 110844 11 2688 19 12.73 1 130 100 110969 10 2719 20 12.55 2 134 100 111094 10 2781 17 12.7 2 139 100 111219 9 2844 22 12.99 2 143 100 111344 8 2906 28 12.98 1 150 100 111485 8 2969 43 13.01 1 156 100 111610 7 3000 35 12.99 1 163 100 111735 5 3094 33 13.07 1 172 100 111860 5 3156 27 13.02 1 182 100 111985 4 3250 26 13.01 1 196 100 112110 3 3312 29 13.04 0 208 100 112250 4 3406 42 12.69 0 220 100 112375 3 3500 51 12.51 0 231 100 112500 3 3562 37 12.3 0 232 100 112625 4 3688 32 12.11 0 223 100 112750 4 3781 51 11.89 0 223 100 112891 4 3875 54 11.86 0 229 100 113016 4 3969 65 12.01 0 228 100 113141 5 4062 72 11.79 0 225 100 113266 4 4156 20 11.73 0 231 100 113391 5 4250 14 11.66 0 232 100 113531 4 4344 39 11.48 0 233 100 113656 5 4438 13 11.36 0 231 100 113781 6 4531 31 11.3 0 225 100 113906 5 4625 33 11.35 0 232 100 114031 5 4719 27 11.41 0 233 100 114172 5 4812 24 11.2 3 231 100 114297 5 4906 36 11.11 3 232 100 114422 5 5000 29 11.2 3 230 100 114547 5 5094 30 11.2 2 225 100 114672 5 5188 35 11.22 9 222 100 114797 3 5281 58 11.19 9 226 100 114938 4 5344 39 11.26 9 226 100 115063 4 5438 23 11.16 9 226 100 115188 4 5500 44 11.14 9 224 100 115313 4 5594 27 11.11 8 224 100 115438 4 5688 33 11.23 8 226 100 115578 5 5750 17 11.2 8 224 100 115703 5 5844 31 11.02 8 223 100 115828 6 5938 31 11.05 8 223 100 115953 6 6000 38 10.95 8 222 100 116078 6 6094 48 10.98 8 221 100 116219 7 6156 32 10.94 7 222 100 116344 7 6219 54 10.98 7 220 100 116469 8 6312 84 11.02 9 219 100 116594 8 6375 43 10.98 9 222 100 116719 9 6438 48 10.94 9 217 100 116860 8 6531 26 10.91 11 214 100 116985 8 6625 21 11.02 10 213 100 117110 9 6656 36 10.92 10 213 100 117235 10 6750 53 10.94 10 211 100 117360 10 6812 44 10.79 10 209 100 117485 10 6875 35 10.88 10 209 100 117625 11 6938 69 10.76 10 209 100 117750 12 7031 31 10.94 9 208 100 117875 12 7062 32 10.78 9 208 100 118000 12 7125 34 10.78 9 207 100 118125 12 7188 40 10.73 9 208 100 118266 12 7250 51 10.7 9 208 100 118391 12 7312 38 10.69 9 207 100 118516 12 7375 65 10.67 8 206 100 118641 14 7406 35 10.57 8 203 51.765
Last edited by AutoXer; May 8, 2007 at 07:51 PM.
I can't comment on your timing, but just comparing it to my logs... yikes. Just my opinion, but if I was seeing that much knock I would definitely STOP driving my car. Then maybe pull some timing and maybe add a little fuel. Try and get down to 3 or less knock counts across the rev range.
Looks like you're more modded than I am, and I am by no means an expert tuner, but with that much knock you've gotta be losing power as a result of the ECU pulling timing to protect your engine.
Last edited by RedV; May 8, 2007 at 07:32 PM.
the 2 and 3 degree jumps in the first log are probably lending to the knock problem. You aren't pushing very much timing. Those numbers might be an issue if you are running 91 though.
Because i'm lazy, i figured i would just ask him to post his ignition table. lol
CJ
Was he tuned by you(or by another vendor)? There is nothing wrong with him posting his maps in order for us to help him. Trust me, i doubt anybody wants to "steal" his ignition timing....lol. I swear. You vendors kill me sometimes...i mean all the time.
The guy wants help....the only way i can help is if i know all the information. Besides, anybody can figure out his actual timing values by doing the math.
CJ
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Was he tuned by you(or by another vendor)? There is nothing wrong with him posting his maps in order for us to help him. Trust me, i doubt anybody wants to "steal" his ignition timing....lol. I swear. You vendors kill me sometimes...i mean all the time.
The guy wants help....the only way i can help is if i know all the information. Besides, anybody can figure out his actual timing values by doing the math.
CJ
The guy wants help....the only way i can help is if i know all the information. Besides, anybody can figure out his actual timing values by doing the math.
CJ
I am not convinced that you are qualified to help him, especially as you have demonstrated that you have overlooked the data already provided.
I agree with TTP, his AFR;s are way off. He needs to get that corrected before looking into the ignition side. Once you start knocking....it just keeps going and going., its like a bad disease.
I concur as well. Fueling doesnt show compensation for the pump, tip-in/peak torque is EXTREMELY lean for pump gas, and the load is peculiarly low. I would surmise that you are currently boosting less than stock OR if you are boosting at an indicated stock level you have some gremlins.
What octane fuel and what boost level? When was the last time you looked inside your intercooler?
What octane fuel and what boost level? When was the last time you looked inside your intercooler?
For those mods his load is somewhat low actually. A bonestock VIII runs in the 220 range +/- based on air conditions for peak load. Conservative is definitely true, and is partly why I find the knock (other than being fueling induced) rather odd. That being stated, I am still curious for his answers.
have you done a proper free air cal lately ? I was having problems with high knock with conservative timing and fuel only to find my LC1 was reading almost a full 1.0 afr richer than actual. even though it swept properly (14.5-14.8) in closed loop it was reading mid 11 afr even though the dynos wb was reading mid 12 afrs. after a good cal it read accurately.
I hit mid 250 load cells at 20 psi on my car (map and 2 byte logged) so he may be in the 18 psi range.
I hit mid 250 load cells at 20 psi on my car (map and 2 byte logged) so he may be in the 18 psi range.
Last edited by andenbre; May 8, 2007 at 09:59 PM.
Here's the High Octane Fuel and Timing maps. I'm using 93 octane. It's hitting about 20psi on my autometer gauge.
I did do a free air calibration on the O2 sensor but that's been a couple of months ago. I'll try to calibrate it again today.
I've NEVER looked inside my intercooler, but I do have a catch can. Perhaps I should "break the seal" and give it a look.
I did do a free air calibration on the O2 sensor but that's been a couple of months ago. I'll try to calibrate it again today.
I've NEVER looked inside my intercooler, but I do have a catch can. Perhaps I should "break the seal" and give it a look.
Last edited by AutoXer; May 9, 2007 at 03:24 AM.