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Thread: Perfect 9.9 Deg KR anything over 45% tps

  1. #11
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    Quote Originally Posted by slopokegtp
    Well, answering from bottom up yes, the map is moving all over the place so I am hoping it is working. As for the Air fuel, when I hit KR I am at 12.6 every time. I have removed timing and that does nothing. Kind of funny that I only see 9.9kr and never anything less or more. I know my tune is ALL over the place due to the engine swap.
    Injector duty cycle at 70tps is 30%. I am scared to punch it with all this KR.
    Keep the ideas coming I really appreciate it.
    -Chris
    Commanded AFR and actual can be very different things , what are you using to measure the actual AFR.

    Looks lean from the log , do you have 02 knock sensors or 06 sensors and in what location , can make a huge difference to the tune

  2. #12
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by Delco
    Commanded AFR and actual can be very different things , what are you using to measure the actual AFR.

    Looks lean from the log , do you have 02 knock sensors or 06 sensors and in what location , can make a huge difference to the tune
    Good point: the tune must match the type of knock sensor.

    Ditto: what are you using to measure the actual AFR...?

  3. #13
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    good info.
    I am using a lc1 for my tuning. The knock sensors are KNOCK SENSOR KS116 CHEVROLET CORVETTE 1998-2004 from ebay or course. They are in the top like the stock 04 ls6 not on the side like the ls2
    I did find in b6205 Knock Retard Limit When in PE Mode (Degrees)
    RPM {link: SAE.RPM} Value
    0 0.000000
    400 5.998535
    800 7.998047
    1200 9.997559
    1600 9.997559
    2000 9.997559
    2400 9.997559
    2800 9.997559
    3200 9.997559
    3600 9.997559
    4000 9.997559
    4400 9.997559
    4800 9.997559
    5200 9.997559
    5600 9.997559
    6000 9.997559
    6400 9.997559
    6800 9.997559
    7200 9.997559
    7600 9.997559
    8000 9.997559
    Which is telling me every time I go into PE mode I an seeing max KR. Now I am very confused.

  4. #14
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    Here is a copy of my initial tune. Essentially a z06 file with an a4 tranny (I think)
    Attached Files Attached Files

  5. #15
    Lifetime Member SSpdDmon's Avatar
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    Quote Originally Posted by slopokegtp
    ...The knock sensors are KNOCK SENSOR KS116 CHEVROLET CORVETTE 1998-2004 from ebay...
    I think we've found your problem.

    The fact that you're seeing max KR on a supposedly stock tune is just a little too fishy to me.

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  7. #17
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    Quote Originally Posted by SSpdDmon
    I think we've found your problem.

    The fact that you're seeing max KR on a supposedly stock tune is just a little too fishy to me.
    Sad but true you may have a point here.
    I also have the SI Suite and have already done most of the KR tests and they pass.
    One thing that is killing me is that the 04 corvette z06 has a different OS then the 02 so that made it impossible for me to "compare the alternate tune" (I did not know at that time that you can open multiple copies of the tuner at the same time).
    After looking at the 04 vs the 02 ls6 there are tons of suttle differences expecially in spark and fuel. I thought the blocks were pretty much identical less the PVC valley which in 04 is changed, is this true?
    I know in the v6 world we would have tons of false KR from transmission noise. One of the fixes was to wrap the knock sensor in dynamat. Since the knock sensor "Should" be getting knock from the water jackets wrapping it made do difference in real knock just eliminated false KR.
    My question is do you guys was lsX series motors get false KR from open headers, etc?
    I pulled the plugs and they are perfect. No cracking, soot, burnt tips etc.

  8. #18
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by slopokegtp
    ... I pulled the plugs and they are perfect. No cracking, soot, burnt tips etc.
    I take it there's no signs of spotting on the ceramic.

  9. #19
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    are you talking about when a piston starts to pop the little spotting of metal on the plug? If so, no there was none. Nice light black, not brown from running lean or jet black from running rich.

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