Need advice on tuning meth
For example on tuning. My setup in Rpm increments:
3000 a/f = 12.5 -12.8
3500 a/f = 12.0-12.5(between)
4000 a/f = 12.0 Peak boost 29psi (This is also where my meth comes on approx 300 load)
4500 a/f = 12.0 (conservative timing)
5000 a/f = 12.0 (conservative timing)
5500 a/f = 12.0 (conservative timing)
6000 a/f = 12.0 Boost begins to Taper(More aggressive timing from 6k to redline+)
6500 a/f = 11.8 Approx 26psi
7000 a/f = 11.8 boost @redline 24psi
I have leanspool disabled so my a/f curve is pretty straight. Now this is for my setup @ 29psi with cams, 2 nozzles, ported manifold, 10.5hotside, o2 dump etc...I haven't really gone super aggressive on my current tune, however, the car moves as is.
Advance Timing really depends on the car and mods, so comparing to others for timing doesn't always work.
3000 a/f = 12.5 -12.8
3500 a/f = 12.0-12.5(between)
4000 a/f = 12.0 Peak boost 29psi (This is also where my meth comes on approx 300 load)
4500 a/f = 12.0 (conservative timing)
5000 a/f = 12.0 (conservative timing)
5500 a/f = 12.0 (conservative timing)
6000 a/f = 12.0 Boost begins to Taper(More aggressive timing from 6k to redline+)
6500 a/f = 11.8 Approx 26psi
7000 a/f = 11.8 boost @redline 24psi
I have leanspool disabled so my a/f curve is pretty straight. Now this is for my setup @ 29psi with cams, 2 nozzles, ported manifold, 10.5hotside, o2 dump etc...I haven't really gone super aggressive on my current tune, however, the car moves as is.
Advance Timing really depends on the car and mods, so comparing to others for timing doesn't always work.
Last edited by Evoryder; May 19, 2009 at 04:01 PM.
I have been playing around a bit with my tune seeing if my car responds better to lean afr/low timing vs. richer afr/high timing and it seems to respond better to the higher timing. I've tried a couple different mivec maps from fellow evoM members and the one I'm currently on is a hybrid map that mrfred had posted a while back that cij did some altering to...but it basically follows the theory, 0* at redline. I guess I just need some time to tune and try different settings to see which one responds better, I just wanted to get an idea of what other members have tried.
For example on tuning. My setup in Rpm increments:
3000 a/f = 12.5 -12.8
3500 a/f = 12.0-12.5(between)
4000 a/f = 12.0 Peak boost 29psi (This is also where my meth comes on approx 300 load)
4500 a/f = 12.0 (conservative timing)
5000 a/f = 12.0 (conservative timing)
5500 a/f = 12.0 (conservative timing)
6000 a/f = 12.0 Boost begins to Taper(More aggressive timing from 6k to redline+)
6500 a/f = 11.8 Approx 26psi
7000 a/f = 11.8 boost @redline 24psi
I have leanspool disabled so my a/f curve is pretty straight. Now this is for my setup @ 29psi with cams, 2 nozzles, ported manifold, 10.5hotside, o2 dump etc...I haven't really gone super aggressive on my current tune, however, the car moves as is.
Advance Timing really depends on the car and mods, so comparing to others for timing doesn't always work.
3000 a/f = 12.5 -12.8
3500 a/f = 12.0-12.5(between)
4000 a/f = 12.0 Peak boost 29psi (This is also where my meth comes on approx 300 load)
4500 a/f = 12.0 (conservative timing)
5000 a/f = 12.0 (conservative timing)
5500 a/f = 12.0 (conservative timing)
6000 a/f = 12.0 Boost begins to Taper(More aggressive timing from 6k to redline+)
6500 a/f = 11.8 Approx 26psi
7000 a/f = 11.8 boost @redline 24psi
I have leanspool disabled so my a/f curve is pretty straight. Now this is for my setup @ 29psi with cams, 2 nozzles, ported manifold, 10.5hotside, o2 dump etc...I haven't really gone super aggressive on my current tune, however, the car moves as is.
Advance Timing really depends on the car and mods, so comparing to others for timing doesn't always work.
My last question, sorry for so many, how is your meth activated? I noticed you said that at 4k rpm, peak boost 29psi which is also where your meth comes on at approx 300 load, seems like you start spraying pretty late, my AEM is set to start spraying at 11psi which is the highest it can start.
Hey thanks for the info, very informative breakdown. You're running leaner than I am, but then again with 2 nozzles I'm pretty sure you're spraying much more meth than I am also.
My 2 nozzles combined I'm spraying 1,255ml/min
Quick question though, and I don't mean for this to turn into leanspool thread, but there has been so much theories behind whether to disable or not, currently I have it enabled, but have also tried disabled...how does you're spool up feel with it disabled? Did you do it the old way (setting your start/stop to the same rpm) or the periphery bits way (totally disabling it with ecu periphery 1)
I disabled Lean spool with the periphery bits, it actually has nothing to do with your spool, tuning does.
My last question, sorry for so many, how is your meth activated? I noticed you said that at 4k rpm, peak boost 29psi which is also where your meth comes on at approx 300 load, seems like you start spraying pretty late, my AEM is set to start spraying at 11psi which is the highest it can start.
I have it on and off, non progressive. My meth is 100% activate 10psi and above, anything below and it's off. So it's actually spraying earlier but it atomizes fully around 4000rpm, that's where the real dip in logs for me is.
My 2 nozzles combined I'm spraying 1,255ml/min
Quick question though, and I don't mean for this to turn into leanspool thread, but there has been so much theories behind whether to disable or not, currently I have it enabled, but have also tried disabled...how does you're spool up feel with it disabled? Did you do it the old way (setting your start/stop to the same rpm) or the periphery bits way (totally disabling it with ecu periphery 1)
I disabled Lean spool with the periphery bits, it actually has nothing to do with your spool, tuning does.
My last question, sorry for so many, how is your meth activated? I noticed you said that at 4k rpm, peak boost 29psi which is also where your meth comes on at approx 300 load, seems like you start spraying pretty late, my AEM is set to start spraying at 11psi which is the highest it can start.
I have it on and off, non progressive. My meth is 100% activate 10psi and above, anything below and it's off. So it's actually spraying earlier but it atomizes fully around 4000rpm, that's where the real dip in logs for me is.
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