Safer tune produces more power.
Jul 25, 2006, 12:11 PM
#24
1 to 2 degrees around peak trq. The biggest thing that helped was giving the ECU a progression of timing advancement instead of a flat line. I noticed the ECU gets really grumpy when it sees flat timing.
This also made the car feel meatier because the timing was well... advancing.
This also made the car feel meatier because the timing was well... advancing.
Jul 25, 2006, 12:24 PM
#26
Originally Posted by C6C6CH3vo
+1 - What timing did you retard, and to change it from "flat" you had to add some at lower loads too, right?
Originally Posted by C6C6CH3vo
Were there any mods added since the previous tune? Was the original tune a custom or mail-in?
Originally Posted by razorlab
In all fairness to the previous tuner, this was an off-the-shelf reflash and also for a california car where 91 octane is quite a finicky equation.
Last edited by razorlab; Jul 25, 2006 at 12:30 PM.
Jul 25, 2006, 12:39 PM
#27
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Originally Posted by razorlab
1 to 2 degrees around peak trq. The biggest thing that helped was giving the ECU a progression of timing advancement instead of a flat line. I noticed the ECU gets really grumpy when it sees flat timing.
This also made the car feel meatier because the timing was well... advancing.
This also made the car feel meatier because the timing was well... advancing.
Jul 25, 2006, 12:48 PM
#28
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I'd be very interested to see this as well. Mine is a little more "flat" that I'd like for it to be. On the dyno my car was down on tq but I've made a lot of changes since then. I don't have any knock issues but I'd like my maps to "progress" a little more.
You guys are more than welcome to dl MY map.. it still needs work and is too aggressive for pump gas (currently working on an alky tune) http://justchil.net/dl/evo/tuning/ALKY_15.hex
Actually I had forgotten how nice the "stock" rom is for this.. as far as "stepping" your timing tables and such...
You guys are more than welcome to dl MY map.. it still needs work and is too aggressive for pump gas (currently working on an alky tune) http://justchil.net/dl/evo/tuning/ALKY_15.hex
Actually I had forgotten how nice the "stock" rom is for this.. as far as "stepping" your timing tables and such...
Last edited by justchil; Jul 25, 2006 at 12:57 PM.
Jul 25, 2006, 12:49 PM
#29
Originally Posted by Cannonballer
Could you post a timing map, modified enough so that no pro-tuners get their knickers in a twist, that illustrates the "progression of timing advancement"? I have been trying to figure out what that should look like and am definitely reinventing the wheel in the process.
This is not the map that was used for the car in this thread.
Jul 25, 2006, 01:28 PM
#30
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Originally Posted by razorlab
1 to 2 degrees around peak trq. The biggest thing that helped was giving the ECU a progression of timing advancement instead of a flat line. I noticed the ECU gets really grumpy when it sees flat timing.
Glad to see you were able to find some gains with fine-tuning and smooth out the power delivery.
