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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 05-21-2007, 10:19 PM   #1
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Default Scanning results

Here are the results I have had with scanning and some tuning. I am still getting a lot of KR even with all my mods including headers, rockers, CAI, 180 drilled t-stat, 104s, and a 3.4". I know others with the same setup are seeing 0 KR. We have been adding fuel and this was with race fuel in the car. What does everyone think? Where should I go from here?

Scan #1 without tuning:


Scan #6 after tuning some:
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Old 05-27-2007, 05:10 PM   #2
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Sorry I can't help with your question. I was just wondering what scan tool you used to get your results? Thanks.

Dave
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Old 05-27-2007, 05:17 PM   #3
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I noticed that you LTFT went to zero. Was that with the race fuel or do you have a tuner?
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Old 05-27-2007, 07:30 PM   #4
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Try to lean your fueling out some; I think you'll see better power around 11.5:1
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Old 05-27-2007, 07:36 PM   #5
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Jared... Your ECT should be Engine Coolant Temp. Why is this saying you aren't up to operating temps before testing/tuning?

You'll want to have the car up to temp. It does appear that you have a lot of KR for the mods. When was the last time you changed plugs and the gap you used?
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Old 05-27-2007, 08:42 PM   #6
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Bill, those temps (IAT, ECT) are clearly in degrees C. Plugs and gap is good advice...jshelton, how well mechanically tuned is this car? Maybe a Seafoam or other induction cleaning is in order...

McGrath, he'* making better power in the second scan than in the first...though I agree that second scan is, IMO, a bit rich.

Your basic choices as I see it are to richen further (which I wouldn't recommend if this tune is for a daily driver), or pull spark timing.
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Old 05-27-2007, 10:52 PM   #7
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Quote:
Originally Posted by agrazela

Your basic choices as I see it are to richen further (which I wouldn't recommend if this tune is for a daily driver), or pull spark timing.
actually some times when the car is running TOO rich it will cause KR... McGrath is right on with the 11:5 AFR

and looking at the scans the car has some weird AFR espically at the Higher RPMS. I thing that you need to get the L67 Pump in the car, as its a 2 stager, where as your L36 is not.

you need to adress your fueling first, then start tuning the car
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Old 05-28-2007, 09:39 AM   #8
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getting L67 fuel pump to see if this solves the issues. Already on it'* way.
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Old 05-28-2007, 12:22 PM   #9
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Quote:
Originally Posted by agrazela
Bill, those temps (IAT, ECT) are clearly in degrees C.
Hmmm I guess looking at it more comprehensively would show that.
Why we are looking at Celsius instead of Faren..is beyond me.
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Old 05-28-2007, 12:27 PM   #10
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Quote:
Why we are looking at Celsius instead of Faren..is beyond me.
Because it is a more logical unit of temperature and it'* the Canadian way, eh.

I know you're behind me on that one Bill........................way behind me.
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