Thread: checking to see if my scans sound ok

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  1. #1 checking to see if my scans sound ok 
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    2006 gpgt. Mods: headers, 1.9 rockers, AL104's, 3.2 pulley, #60 injectors and e85. Fuel trims are within 5 when cruising and zero out at wot. 11psi at wot. Timing advance 16.5-17 wot, 28-30 cruising. Seen some blips of kr up to 1.2* at the beginning of the wot pulls but I'm pretty sure it came down as I got deeper into the pull. Any thoughts?
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  2. #2 Re: checking to see if my scans sound ok 
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    Only 30* while cruising? Ouch
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  3. #3 Re: checking to see if my scans sound ok 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    With no scan to look at, I can't give my opinion.

    You can't directly post HPT or DHP scans here which kind of sucks, maybe do it as an attachment??

    If it's only around 1ยบ of knock total I wouldn't even care. That's not enough to cause any damage or make you worry that it's going to blow up. You could reduce timing by 1 degree and see if it goes away or just leave it.

    And 28-30 at cruise is pretty low, you must have sloped it down alot. I ran a hybrid timing table, basically a 2005 GTP table with my 2000 GTP table put together. More overall timing out of boost with closer to stock timing in boost area's. I was running upwards of 35-38 degrees on the freeway and get fuel mileage.

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  4. #4 Re: checking to see if my scans sound ok 
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    Stock 05 tables will keep you in the mid 30's to 46* of timing at cruise and 18-19* at WOT. Did you change any of your timing tables? I'm running stock but on E85 and I am not having any issues with KR at all during a pull. If I downshift while at a cruise without letting the TCC unlock then I might see .5* of KR as it releases but that's it.

    Jeff
    An engine is an engine no matter the size.... I think Dr. Seuss said that... or maybe it was Big Weld....
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