High load at idle
#21
Cpt. Slow
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Idle is set to 950 right now. The more I tune it the more I want a 1000+ idle. Along with a 13 or less afr and yes, I'd be willing to try lower ignition too. I'm turning on CL idle in his latest tune to try and keep it from stalling when returning to idle. My own car will return to idle without an idle valve intervention, and can droop as low as ~300rpm without stalling, I really don't think this one will ever do the same.
I've never tried it, is there a way to trim a log down? I have a few of him driving with autotune on and/or idling, but they're both huge logs. This is one of the first times I've seen how it behaves while driving, MAP never reads above 109kpa, but I'm sure he's (hopefully) babying it.
I've never tried it, is there a way to trim a log down? I have a few of him driving with autotune on and/or idling, but they're both huge logs. This is one of the first times I've seen how it behaves while driving, MAP never reads above 109kpa, but I'm sure he's (hopefully) babying it.
#23
Tweaking Enginerd
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You can trim logs in MLV by using the right click delete before and right click delete after function followed by file-export. You need to copy and paste the header lines from the original log back in with a text editor before you you reopen the log IIRC
edit: get used to it and it takes less than a minute. Awesome for VD!
edit: get used to it and it takes less than a minute. Awesome for VD!
#24
Tweaking Enginerd
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109kpa is a tough number to hit. Is the WG wired open?
950 is really low for an engine that isn't misfiring or badly timed at 60kpa. I suspect either a badly calibrated/faulty MAP or an average of 2-3 cylinders firing per cycle.
950 is really low for an engine that isn't misfiring or badly timed at 60kpa. I suspect either a badly calibrated/faulty MAP or an average of 2-3 cylinders firing per cycle.
#25
Idle is set to 950 right now. The more I tune it the more I want a 1000+ idle. Along with a 13 or less afr and yes, I'd be willing to try lower ignition too. I'm turning on CL idle in his latest tune to try and keep it from stalling when returning to idle. My own car will return to idle without an idle valve intervention, and can droop as low as ~300rpm without stalling, I really don't think this one will ever do the same.
I've never tried it, is there a way to trim a log down? I have a few of him driving with autotune on and/or idling, but they're both huge logs. This is one of the first times I've seen how it behaves while driving, MAP never reads above 109kpa, but I'm sure he's (hopefully) babying it.
I've never tried it, is there a way to trim a log down? I have a few of him driving with autotune on and/or idling, but they're both huge logs. This is one of the first times I've seen how it behaves while driving, MAP never reads above 109kpa, but I'm sure he's (hopefully) babying it.
1) Create an account / log in
2) Drag 'n drop the logs into this screen. Wait while it uploads (could take a minute or two depending on the size).
3) Right click on the log you want to share, press get link and copy paste the link with key url to this forum.
#26
Retired Mech Design Engr
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Not presently where I have MLV. There are actually menu functions to do that, and then export. No need to copy headers, they are not lost. I have never done the right click approach.
Play with the menus and you'll find the trim before and trim after items.
Play with the menus and you'll find the trim before and trim after items.
#27
Cpt. Slow
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Ok thanks. Y'all think I have way more time on my hands than I do!
For now, here are the specs from keegan:
Intake lift .351
Duration 268
Duration @.050 213
Ex lift .360
Duration 247
Duration @ .050 226
The lobe center for the intake is 108 deg and the same for the exhaust.
For now, here are the specs from keegan:
Intake lift .351
Duration 268
Duration @.050 213
Ex lift .360
Duration 247
Duration @ .050 226
The lobe center for the intake is 108 deg and the same for the exhaust.
#29
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Since my experience with big cams is in muscle cars I will contribute that they must be idled higher then their stock cammed equivalents to generate good vacuum. I would have set the idle that at about 1150 or 1200 RPM was cams of that duration and see if the afr's and the idle doesn't stabilize.
#31
Since my experience with big cams is in muscle cars I will contribute that they must be idled higher then their stock cammed equivalents to generate good vacuum. I would have set the idle that at about 1150 or 1200 RPM was cams of that duration and see if the afr's and the idle doesn't stabilize.
But I guess try it. I just don't think that's a real fix, because even the crappiest setup will idle at 1200.
#32
Cpt. Slow
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It’s idling at 950 just fine, once it gets warm it seems to refuse to restart. We’re currently trying the only two things I know of, more fuel or more air. if 50-200rpm makes this easier, I’m all for it, and it won’t make that big of a difference in driving experience.
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