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How much total timing at WOT??

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Old 05-07-2005, 10:50 AM
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Default How much total timing at WOT??

Installed Predator tune and my total timing at WOT is running 33 degrees. I have heard that LS1 don't really respond well to that much timing. Can someone confirm or deny that for me please??
Old 05-07-2005, 12:57 PM
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Most find optimal timing to be 27-28 degrees. Are you getting any kr?
Old 05-07-2005, 01:27 PM
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Nope. Not even at 33.
Old 05-07-2005, 02:02 PM
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i have some of our cars at as much as 32, most around 30 unless their compression is running up high.

if you cant get any knock at 33 at all i would check to make sure the knock system is working right and secondly see if you are just way way rich
Old 05-07-2005, 02:51 PM
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I was way rich 11.2 to 1. Got it down to 12.9 to 1 now @ wot. Moved the timing at the same time.
Old 05-07-2005, 02:55 PM
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i run 30-31 degrees at WOT and made the #'s in sig w/o any knock. Every car will like what it likes... A car I played with just this morning could only run 22 degrees...

The real question is, are you running optimal timing? The more timing you have does not mean you are making the most power you can. You doing all this on a dyno I presume?
Old 05-07-2005, 04:02 PM
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Originally Posted by jqhawk
Nope. Not even at 33.
Your tripping,in what gear and rpm are you seeing that?
Old 05-07-2005, 09:33 PM
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3 or 4 th @wot
Old 05-08-2005, 12:24 AM
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Can you get on a dyno to verify that running this amount of timing is working for you? I mean, if you backed off and gained 5 horses that would mean something.

Also, like said earlier, if your knock sensors are a little buzzed from tuning or whatever, they won't pick up on the pinging. I take it you have no audible knocking? 33 degrees is a very rare thing with these motors. Most motors like 25-30 degrees.
Old 05-08-2005, 04:37 AM
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Im stock internals and the most I can pull is 22*. Cammed cars here in OZ can run up to 27-28* but thats the limit. 33* sounds wrong. If you get no power gains from 27-33* then I would still run 27*.
Old 05-08-2005, 08:51 AM
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I did back it down to 29 and leaned it out. I don't have access to a dyno, but I picked up 1 MPH in the quarter. Ran 13.001 @ 108.88 yesterday. Best previous was 13.05 @ 107.9, yesterday was very humid and warm over the 107 run day. So there may have been more gain.
Old 05-08-2005, 10:21 AM
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Just friday I went from 27 total deg to 29 deg and gained nothing at the track. ET and mPH were unchanged.

Dave
Old 05-08-2005, 11:49 AM
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I will try backing it off some more. I did seem to lose some mid-range, for gaining 1 mph I didnot gain much in ET. I was really looking for a 12. Close but no cigar.
Old 05-08-2005, 01:11 PM
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I'm curious on this also.... my car (98) stock was 28 wot. Afriend of mines 02
had 22 stock for wot in timing tables. Added 5 degs. a month ago, ran well,no knock. Last week he started having kr under light throttle. Did it really take this long to learn???? not hijacking but some what related.
Old 05-08-2005, 01:20 PM
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I have seen some minor KR when the engine was in olpen loop and still warming and at part throttle. None after she warms up. 22 degrees seem awefully low to me.
Old 05-08-2005, 02:21 PM
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Originally Posted by Rays C5
I'm curious on this also.... my car (98) stock was 28 wot. Afriend of mines 02
had 22 stock for wot in timing tables. Added 5 degs. a month ago, ran well,no knock. Last week he started having kr under light throttle. Did it really take this long to learn???? not hijacking but some what related.
O1 and 02 cars have a very conservative timing table compared to 98-00 cars.

Personally, I run from 4000 rpm about 22 degrees, up to 29 degrees at 6000 rpm. I have never had any luck removing the torque valley in the timing tables, as some have.
Old 05-08-2005, 06:21 PM
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Yeah, I can't totally remove the tq valley either but have lessened the dip a lot. Now it only dips down maybe 2 degrees at peak tq.




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