What did you do to your NA today? - Page 56 - Miata Forumz - Mazda Miata Chat Forums
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NA (1989-1997) NA Miata discussion within. The MX5's first generation, the NA, sold over 400,000 units from 1989 to 1997.

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Old 05-01-2012, 01:45 PM   #551  
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Originally Posted by RedTurboMiata View Post
yea its all setup, it was sitting in the 16s at cruise, worried me a bit because it was 15s earlier this morning. laptop was dead so i couldnt adjust anything
Sounds like a very economical cruise. Where is your IAT sensor located? They don't like being anywhere behind the radiator because they can heat soak and read incorrectly.

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In theory wouldnt Diy autotune's base tune already have some of the compensations done?
I'm trying to recall if those settings were for use if you had a pnp and were running MAF. All I know is Brain's tune had it zeroed out. I'm not the best educated one around here on the obscurities of the software. There is a reason they call him Brain. Maybe he can shed some light.

Edit: There he is.

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Old 05-01-2012, 02:02 PM   #552  
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Sounds like a very economical cruise. Where is your IAT sensor located? They don't like being anywhere behind the radiator because they can heat soak and read incorrectly.


I'm trying to recall if those settings were for use if you had a pnp and were running MAF. All I know is Brain's tune had it zeroed out. I'm not the best educated one around here on the obscurities of the software. There is a reason they call him Brain. Maybe he can shed some light.

Edit: There he is.
its near the alternator on the back side of the charge pipe.
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Old 05-01-2012, 02:12 PM   #553  
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Thinking about it a bit my latest virtual dyno run fell o it's face above like 6500, so the timing is Probobly off a bit.
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Old 05-01-2012, 02:44 PM   #554  
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you need to tune your timing latency value, if it's set to 0, your timing will drop off towards redline.
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Old 05-01-2012, 03:35 PM   #555  
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Unless six touched any of this, this is diy's base stuff. i have not touched the timing table at all.


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Old 05-01-2012, 04:27 PM   #556  
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found out the iat wasnt positioned where i thought it was,

This should help a bit, its lightweight aluminum.
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Old 05-01-2012, 04:36 PM   #557  
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i would add 5-6 degree in boost, through out. so the top 5 rows.
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Old 05-01-2012, 05:00 PM   #558  
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do you have an example to show me what im shooting toward?
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Old 05-01-2012, 07:36 PM   #559  
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If in tunerstudio you go under the spark tab and choose the top choice in the dropdown menu "spark settings", the default is 65 and you have 58, which usually means that you have adjusted it to make the spark line up with your timing marks. That's OK if everything is truly accurate with your timing.

And you have the cranking advance angle set at 18 and the map I have from Brain has it set for 12. Six degrees more timing right there probably will make the difference you are seeing. If you are sure your timing is right, just change this right now to 12 or 10 and see how that does. It should be a lot better.
alright i busted out our timing light, and tried again. bumped it up to about 60 and it seemed happier. tomorrow i should have access to a known good timing light so i will go for it again.
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Old 05-02-2012, 09:32 AM   #560  
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seemd happier? either you're lining up to 10 or you're not.
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