Timing Map Explanation?
Sep 7, 2009, 11:30 PM
#20
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its best to start at the lowest RPM you encounter knock and pull timing in that one RPM sector. sometimes if there is too much/little timing at the beginning of the pull, it can throw knock all the way through the RPMs.
Sep 7, 2009, 11:46 PM
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watch these videos a member made on tuning you will greatly increase your knowledge on how the whole tuning thing works
Sep 8, 2009, 01:09 PM
#26
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wow, ok. Remember that the loads on that map are for a Naturaly Aspirated car ( unless you have a evo 8 ECU......do you?????). SO, youre gonna have to scale them so you can tune anything ove 0psig (or ambient press). I wouldnt even try to boost that thing on a MA map. Is way to much timing for any type of boost. Youll create to much cylinder pressure and pop something.
Also. yes the ECU will pull 1deg of timing for every 3 that she see. That doesnt mean that you gonna make her knock to figure out your timing curve. That old school crap that"make her knock then pull it back" is that just crap. Example. let say that At peak torque you have 6deg of timing. then you give it some more to see what happens, then nothing, so you keep giving it more untill she knock like around 12deg. now you pull her back a notch....ok! thats fine, but she stop making power at 8deg of timing..... so why would you wanna give her all that if she dont need it. you want that cushion. THE ONLY WAY YOU CAN SEE THIS ON A DYNO...
Just my 2cents.
Also what type of map sensor u have??????
Also. yes the ECU will pull 1deg of timing for every 3 that she see. That doesnt mean that you gonna make her knock to figure out your timing curve. That old school crap that"make her knock then pull it back" is that just crap. Example. let say that At peak torque you have 6deg of timing. then you give it some more to see what happens, then nothing, so you keep giving it more untill she knock like around 12deg. now you pull her back a notch....ok! thats fine, but she stop making power at 8deg of timing..... so why would you wanna give her all that if she dont need it. you want that cushion. THE ONLY WAY YOU CAN SEE THIS ON A DYNO...
Just my 2cents.
Also what type of map sensor u have??????
Last edited by crewdawg130; Sep 8, 2009 at 01:16 PM.
Sep 8, 2009, 01:13 PM
#27
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timing on boosted cars looks highest before peak trq, lowest at peak trq then ramping up till read line......
Sep 8, 2009, 01:30 PM
#28
wow, ok. Remember that the loads on that map are for a Naturaly Aspirated car ( unless you have a evo 8 ECU......do you?????). SO, youre gonna have to scale them so you can tune anything ove 0psig (or ambient press). I wouldnt even try to boost that thing on a MA map. Is way to much timing for any type of boost. Youll create to much cylinder pressure and pop something.
Also. yes the ECU will pull 1deg of timing for every 3 that she see. That doesnt mean that you gonna make her knock to figure out your timing curve. That old school crap that"make her knock then pull it back" is that just crap. Example. let say that At peak torque you have 6deg of timing. then you give it some more to see what happens, then nothing, so you keep giving it more untill she knock like around 12deg. now you pull her back a notch....ok! thats fine, but she stop making power at 8deg of timing..... so why would you wanna give her all that if she dont need it. you want that cushion. THE ONLY WAY YOU CAN SEE THIS ON A DYNO...
Just my 2cents.
Also what type of map sensor u have??????
Also. yes the ECU will pull 1deg of timing for every 3 that she see. That doesnt mean that you gonna make her knock to figure out your timing curve. That old school crap that"make her knock then pull it back" is that just crap. Example. let say that At peak torque you have 6deg of timing. then you give it some more to see what happens, then nothing, so you keep giving it more untill she knock like around 12deg. now you pull her back a notch....ok! thats fine, but she stop making power at 8deg of timing..... so why would you wanna give her all that if she dont need it. you want that cushion. THE ONLY WAY YOU CAN SEE THIS ON A DYNO...
Just my 2cents.
Also what type of map sensor u have??????
Sep 8, 2009, 01:51 PM
#29
You will most likely not ever reach MBT (Minimum Best Torque ... where more timing yields no more power) on pump gas, so it is perfectly logical to add timing until you encounter knock and then pull back a couple of degrees.
If you are on C16, E85 or similar then you do need a way to monitor torque output as you may reach MBT. You don't need a dyno for this. You can use a software application such as Data Log Lab for this assuming your pulls are consistently in the same place on the street.
Modifying timing does slightly affect the AFR, but not by much. If you dial in the AFR then tune the timing, you will only need to make minor tweaks to the AFR to get it back in line ... if any.
My suggestion for tuning a boosted lancer is to first apply the modified MAF Scaling settings so that you don't run out of fuel up top. Then, rescale the fuel and timing maps to 110 load. Next, pull about 8º of timing from 80 to 110 load before you do a single pull. That should keep you from seeing knock. Pull more if needed. Set the boost, dial in the fuel and then the timing and that's it.
If you are on C16, E85 or similar then you do need a way to monitor torque output as you may reach MBT. You don't need a dyno for this. You can use a software application such as Data Log Lab for this assuming your pulls are consistently in the same place on the street.
Modifying timing does slightly affect the AFR, but not by much. If you dial in the AFR then tune the timing, you will only need to make minor tweaks to the AFR to get it back in line ... if any.
My suggestion for tuning a boosted lancer is to first apply the modified MAF Scaling settings so that you don't run out of fuel up top. Then, rescale the fuel and timing maps to 110 load. Next, pull about 8º of timing from 80 to 110 load before you do a single pull. That should keep you from seeing knock. Pull more if needed. Set the boost, dial in the fuel and then the timing and that's it.
