06-28-2010, 03:50 PM | #1 |
Drives: 2SS/RS Join Date: May 2010
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My Camaro is pulling timing!
2SS/RS 6.2L L99 with A6. When I go WOT it pulls timing from a dig. I have TM out or I think I have it out and TC turn off! I am tunning with HPTuners. Any ideas? I was going to attach a log but it will not let me.
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06-28-2010, 04:59 PM | #2 |
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There are many things that can cause timing to get retarded. Burst KR at launch isw fairly common. Very warm intake air temps will cause timing to be pulled under WOT loads. Insufficient octane relative to the tune will be cause for timing retard. Poor quality fuel is another cause. Knock sensors correctly or incorrectly can cause the timing to be reduced (usually overkill too). Good logs with the proper parameters loggged should tell.
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06-29-2010, 11:22 AM | #3 | |
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Quote:
Try to modify the table at lower RPM levels and higher load levels and check it again. If you send me a scan I can tell you for sure. I can read any scan you send me, I don't know what software you are using. |
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06-29-2010, 12:06 PM | #4 |
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Aside from logging total advance... log all of the spark adders/retards to see what sources are pulling timing out.
What conditions are you seeing the timing get pulled out?... A log would help. |
06-29-2010, 12:39 PM | #5 | |
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Quote:
Sent you a PM.
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06-29-2010, 12:41 PM | #6 | |
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Quote:
Where can I send you a log? I can not upload a log here. Thanks!
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06-29-2010, 01:49 PM | #7 |
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Got it. The car is doing as I suspected. Under 1700 RPM you are in a part of the timing table that is very low.
Actually you are at .64 gm/cyl at only 800 RPM. Not very much timing down there! Bring those numbers up, but dont get crazy. Keep them in the high single digits to start. Good luck and happy tuning! Also, you have zero upshift torque management. I would just reduce it by 50% or so. What intake is on the car? You are pulling a 12 Kpa depression in the manifold, thats huge. |
06-29-2010, 02:33 PM | #8 | |
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Quote:
I will add timing down in those areas! It stll has the stock air filter system. Thanks again!
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06-29-2010, 03:23 PM | #9 |
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06-29-2010, 05:02 PM | #10 |
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That is why everyone says they can feel a hugh change with a CAI!
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06-30-2010, 07:24 AM | #11 |
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06-30-2010, 09:52 AM | #12 |
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07-02-2010, 02:01 PM | #13 | |
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Quote:
I agree with Kirk though in that you have to add more timing in small increments until you're happy with the results. |
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07-03-2010, 10:33 AM | #14 | |
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Quote:
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