Tuning with autotune - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 09-17-2007, 10:44 PM   #21
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Quote:
Originally Posted by Ben View Post
Al, as in you used MLV in some other manner than tune, datalog, and check?

I have a hard time tuning cruise with MLV, but tuning boost is cake.
yeah I just logged and tuned manually for boost but for vacuum I found the VE analyzer in MLV useful.
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Old 09-17-2007, 10:54 PM   #22
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damn I gotta be missing the light here.
Point me towards VE analyzer please?
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Old 09-17-2007, 11:01 PM   #23
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Quote:
Originally Posted by Ben View Post
damn I gotta be missing the light here.
Point me towards VE analyzer please?
it's part of MegaLogViewer. http://ideasandsolutions.biz/megalog...eAnalysis.html
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Old 09-17-2007, 11:06 PM   #24
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wow, don't know how I tripped on my dick on that one.
******* cool
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Old 09-17-2007, 11:09 PM   #25
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Quote:
Originally Posted by Ben View Post
wow, don't know how I tripped on my dick on that one.
******* cool

I stumbled upon it* while checking out updates for Megalogviewer.



VE Analyzer that is, not your dick.
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Old 09-17-2007, 11:21 PM   #26
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Quote:
Originally Posted by Ben View Post
wow, don't know how I tripped on my dick on that one.
******* cool
You haven't lived till you've had MLV do your tuning for you.
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Old 09-17-2007, 11:44 PM   #27
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Nice tuning tool. Just going through my old logs looks like I can do some better cruise tuning. Looks even better than MegaTweak
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Old 09-22-2007, 01:38 AM   #28
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Quote:
Originally Posted by Braineack View Post
if you dont adjust your custom.ini file it only wants to tune between 60-90kPa and 2000-4000RPM. So im sure your 60mph cruise looks great.

you gotta change that ****.


autotune for me works great, none of this: take a log, pull over, analize, reburn, drive and hope it's better.
I just changed mine, going to try it out tomorrow. I have problems with MLV because the voltages for my wideband are not the same as what the developer of MLV coded them as. If I was able to enter my own voltages in MLV for the AEM WB then all would be grand but their conversion isn't right. MT is fine because I enter the correct voltages from the manual so I'll try that with a good VE table.
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Old 09-22-2007, 05:39 AM   #29
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ditto, took a minute to find the custom.ini but pretty self explanatory thereafter. Although im not quite sure what the 10 - 200 ve thing was about (x axis?) and left it alone figuring it to be limits. For lumpiness, is 5% enough? I have some current points in my tune that are 10% or more difference in VE just going up one MAP row, or am I interpreting this incorrectly?
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Old 09-22-2007, 08:59 AM   #30
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Just set the correction percentage on sweep and then make out your AF table and viola. It tunes the AF smooth within a few secs of being in the map/rpm table it is a very nice tool in 12 minutes or so i can fully zero my tune back in where i want it AF wise provided i don't have any cops in the area.
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Old 09-22-2007, 12:45 PM   #31
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Quote:
Originally Posted by Ben View Post
I think it depends on your wideband. When you set it up in the configurator, if you have a listed WB it automatically shows AFR instead of volts (it does the conversion for you). But if you're using a different wb, then you have to input the voltage output. In Ben's car he just keeps a spreadsheet that references AFR to volts for his PLX, and it works fine. My car has an LC1 and the table shows AFR.
Hurm, I have an NGK AFX and it reads from 9-16 afr (its linear).... I'd love to get AFR readouts... bah to volts.

Anyone have thoughts? I'm itching to tune today... exhaust is done, carpet/dash is in.... i'm ready!
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Old 09-22-2007, 07:45 PM   #32
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Why not get a LC1 split?
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Old 09-22-2007, 07:56 PM   #33
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Quote:
Originally Posted by magnamx-5 View Post
Why not get a LC1 split?
sold my lc1 for this. same price, has a display and uses both ngk and bosch sensors. basically i got a display for free,
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Old 09-22-2007, 08:19 PM   #34
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I too have to deal with volts, i wish i could edit the code for MLV somehow to make it read AFR for the AEM unit i have a 30-4100 model and the code seems to be for the 30-42xx models, not sure how much that matters but it doesn't convert right.
After adjusting my .ini file autotune appears to work pretty well though.
What are you guys using for your ego settings and are you letting autotune tune in boost as well by adjusting the lambda afr settings? I've set my lambda afr settings to 100 kpa and 3. It seemed to work alright.
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Old 09-22-2007, 09:04 PM   #35
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I think I have it.

NGK AFX is 9afr to 16 afr, 0v to 5v respectively

afr = (1.4 x volt ) + 9

So...
9 = 0
11 = 1.428
12 = 2.142
13.5 = 3.214
14.7 = 4.071
15.5 = 4.642
16 = 5

I just made up an AFR target map by this... wish me luck tomorrow.
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Old 09-24-2007, 02:18 AM   #36
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Quote:
Originally Posted by Braineack View Post
my tune is butterz with autotune. you guys are setting up a good AFR targets table right?!


Why 14.5, 13.5, 13.0 when out of boost? That's pretty rich compared to the 14.7 i've always been told to shoot for. Am i missing something?
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Old 09-24-2007, 02:23 AM   #37
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It is just a base line for him to shoot for the difference between 14.5 and 14.7 is probably pretty small.
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Old 09-24-2007, 02:28 AM   #38
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I understand that but 13.5 at 5600 rpm out of boost is pretty rich isn't it?
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Old 09-24-2007, 02:30 AM   #39
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For example, here is a target afr map Jerry posted a while back in one of my threads.
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Old 09-24-2007, 02:52 AM   #40
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Right but i find i get abit better throttle response running closer to 14-1 to 13.5 around 100kpa before i had 14.7 and 15 like you and the response was abit slow. The over run fuel cut will pull all unnecessary fual anyway. So no worrys there.
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