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High Ignition Correction on Stage 1

twolf

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Canton
#4
^This. This is an example of what you want to see when doing a pull: positive and consistent corrections.
Is having TOO MUCH positive correction bad? For example, if my tune is giving me +6 on all cylinders, doesn't that mean I could probably have more base timing adjustment and thus more power?
 


dyn085

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#5
Is having TOO MUCH positive correction bad? For example, if my tune is giving me +6 on all cylinders, doesn't that mean I could probably have more base timing adjustment and thus more power?
I wouldn't call it 'bad', more like-less than optimal. But there is a bit more too it than that. Depending on where your knock threshold actually is in comparison to your borderline tables, it could mean that there is power left in your timing or it could mean that you're simply maxing out your ignition correction at or just below. Basically, if your threshold is 16 degrees and your borderline is 10 degrees after compensations (but before correction), when you're getting your max corrections you're at your best maximum. Conversely, if your borderline timing was only at 5 degrees then there would still be a lot of timing left to pull out. This should be noticeable with excessive EGT's though, and not something that should be of concern for anyone running an OTS tune or better.

I'm just using random numbers to illustrate, but hopefully that makes sense.
 


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Location
Huntington Beach
#6
So I'm consistently hitting ~+5 on my ignition correction, sometimes as high as 6, and I've seen some negative numbers, but they are consistent as well and never past ~-2. I'm wondering how bad this is, I'll try and post some logs later but I'm just doing the 91 OTS map. I hit -1 OAR after just 2 WOT pulls in 3rd, so I don't think its my gas. Just wondering if I should be concerned or if theres anything I should do.
 


DvC

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Surprise
#7
I was having the same thing as you untill I added a gallon of e85 and now I have 0 corrections.
 


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Location
Huntington Beach
#8
I was having the same thing as you untill I added a gallon of e85 and now I have 0 corrections.
Hmm I don't know anywhere around me that has it, and I'd rather have good ignition correction on 91. I'm going to get a strat tune at some point, probably after my FMIC, but for now I just want to make sure I'm not doing any damage to mah car. I might go stock tomrrow just to see what kinda numbers I'm pulling.
 


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SoCal
#9
This recently happened to me I was desperate so filled up with some cheap gas down the street from me and have seen negative corrections as high as -5. Idk if I should be concerned or the gas just sucks.
 


dyn085

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#11
I was having the same thing as you untill I added a gallon of e85 and now I have 0 corrections.
The only time you're ever going to have 0 corrections is when you're on the MBT timing tables, regardless of fuel used and once you move into the borderline tables you will almost always have some form of correction.

Sent from my SM-G930V using Tapatalk
 




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