CZ Installed on N Flash with Major Mods
05-17-2005, 02:44 PM
#46
Consiglieri
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Okay. Educate me. We are all saying that 13.1-ish is "safe".... why? Its safe to run stoich at lower RPM, why is is not safe to do so above some magic threshold? We've probably all done it inadvertantly anyway. Is it a long-term concern? Obviously, the engine won't blow doing it occasionally. How is this more stressful than running boost?
05-17-2005, 03:03 PM
#47
I need the education 
Until my CANScan can correctly read the O2 sensor, I'm not really sure where to tune for. Maybe that is another reason why some keep getting inconsistency in their logs. So, in the meantime, I'm shooting for 13.1. When the new chip and software is released, which is real soon, I will tune for more power.
Until my CANScan can correctly read the O2 sensor, I'm not really sure where to tune for. Maybe that is another reason why some keep getting inconsistency in their logs. So, in the meantime, I'm shooting for 13.1. When the new chip and software is released, which is real soon, I will tune for more power.
05-17-2005, 06:43 PM
#48
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It still looks to me that you are up against the knock sensor - I also have the N flash but have the ecu sending out 30 degrees of advance from 7000 rpms to redline and it looks like yours is bouncing around under 30 degrees.
Then again i could be just completely wrong... the more i think I understand things the more complicated they are :o
< the attachement is from 2 seperate runs >
Then again i could be just completely wrong... the more i think I understand things the more complicated they are :o
< the attachement is from 2 seperate runs >
05-17-2005, 08:55 PM
#50
Timing adjustments made on the CZ unit will not show up on the CanScan...it will only tell you what the PCM is doing. You have to add the CZ value to the stock values to find out true timing advance. The PCM seems to pull timing based on Airflow......thats why the advance curve is not 30deg from about 7K up like on stock. Knock will also pull timing.....have yet to see that though :D
05-19-2005, 12:45 PM
#52
Originally Posted by dannobre
Timing adjustments made on the CZ unit will not show up on the CanScan...it will only tell you what the PCM is doing. You have to add the CZ value to the stock values to find out true timing advance. The PCM seems to pull timing based on Airflow......thats why the advance curve is not 30deg from about 7K up like on stock. Knock will also pull timing.....have yet to see that though :D
6010 25
6068 25.5
6155 26
6212 26.5
6265 26.5
6355 27
6422 27.5
6472 28
6549 28
6621 28.5
6683 29
6774 29
6830 29
6910 29
6978 29
7042 28
7105 28
7158 28
7214 27.5
7289 27.5
7354 27.5
7424 27
7450 27
7518 27
7589 26.5
7682 27
7728 27.5
7795 27.5
7814 27
7893 27
7949 26.5
8016 30
8060 30
8114 30
8202 30
8277 30
8286 29.5
8360 30
Last edited by Nemesis8; 05-19-2005 at 04:04 PM.
05-19-2005, 02:03 PM
#54
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Nemesis,
I have done this experiment before when my canscan still working. (I am still waiting for the new canscan for tunning)
I have the ignition graph like urs,
I did zero out the A/F map for 7.4k -> 8k rpm and I found out the the ignition adv go back to 30 degree
Maybe you wanna to try to rich up the A/F for 7.4k->8k rpm, Just a suggestion.
I have done this experiment before when my canscan still working. (I am still waiting for the new canscan for tunning)
I have the ignition graph like urs,
I did zero out the A/F map for 7.4k -> 8k rpm and I found out the the ignition adv go back to 30 degree
Maybe you wanna to try to rich up the A/F for 7.4k->8k rpm, Just a suggestion.
05-19-2005, 03:08 PM
#55
Originally Posted by MadDog
Nemesis,
How come your stock AFR was in the 12's at 4k RPM? Shouldn't we be in closed-loop there and running near stoich?
-MD
How come your stock AFR was in the 12's at 4k RPM? Shouldn't we be in closed-loop there and running near stoich?
-MD
05-19-2005, 03:21 PM
#56
Originally Posted by nhk
Nemesis,
I have done this experiment before when my canscan still working. (I am still waiting for the new canscan for tunning)
I have the ignition graph like urs,
I did zero out the A/F map for 7.4k -> 8k rpm and I found out the the ignition adv go back to 30 degree
Maybe you wanna to try to rich up the A/F for 7.4k->8k rpm, Just a suggestion.
I have done this experiment before when my canscan still working. (I am still waiting for the new canscan for tunning)
I have the ignition graph like urs,
I did zero out the A/F map for 7.4k -> 8k rpm and I found out the the ignition adv go back to 30 degree
Maybe you wanna to try to rich up the A/F for 7.4k->8k rpm, Just a suggestion.
Originally Posted by rotarygod
I still want to see how much power someone puts down with it tuned to a flat 13:1 afr. Good luck on doing that though. I personally would also like to see timing backed down slightly to full advance of 26 degrees. This is just me though.
05-19-2005, 03:31 PM
#57
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Nemesis,
Ok I plan to do it in lazy way. I will goto dyno tune it next monday. I will post the data on Tues/Wed..
Hope I can find out which A/F mixture produce the most hp. and I will pull the ignition adv graph only after I got my canscan back. so stay tune.
I have a high flow cat, and RB intake, stock muffler and stock flywheel.
nhk
Ok I plan to do it in lazy way. I will goto dyno tune it next monday. I will post the data on Tues/Wed..
Hope I can find out which A/F mixture produce the most hp. and I will pull the ignition adv graph only after I got my canscan back. so stay tune.
I have a high flow cat, and RB intake, stock muffler and stock flywheel.
nhk
05-19-2005, 03:53 PM
#58
Originally Posted by WantedTwo
I mounted the profec to the right of the console, and to make it fit you have bent the **** out of the wire and push the cz all the way back.
Thanks
05-19-2005, 06:52 PM
#59
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Originally Posted by Nemesis8
Timing has be puzzled for now, I'm still getting comfortable with just changing the fuel map. What is the best timing we should be running for 92 octane pump gas, with let's say a 13.4 AFR? RG posted this note in another thread:
i'm beginning to think your +.6 a/f ratio assumption doesn't work since the car is still pulling timing out... go richer in that 7-8k range, maybe adjusting the map 10 at a time until the timing returns to 30