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Timing drops on the jug. Does this happen with everyone else?

Old May 12, 2002 | 11:48 PM
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Default Timing drops on the jug. Does this happen with everyone else?

Yesterday I made a couple street passes to make sure the jug was working right. I haven't used it since the FTRA and new jets at full pressure. Put new plugs in AL 103's @ .44, got the bottle up to 1100psi with the 125 jets and made some passes.

First pass on the motor.

Average timing 20* 3850-5890
Peak timing 24* @ 5890rpm
Low Timing 17.5* @ 1850
KR 0*
Average O2 .916

Second pass N20

Average timing 18.3*
Peak timing 18.5* (From 4600-5900)
Low Timing 17* @ 3750
KR 1.1*
Average O2 .907
(Minor flashes of KR, Nothing above 1.1)

Third pass

Average timing 18.5*
Peak timing 19.5* @ 5950(18.5*from 4600-5800)
Low Timing 18.5*
KR 0*
Average O2 .903

Does everyone else see an automatic drop in timing on the jug? I can't see anything that would cause it.
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Old May 14, 2002 | 06:13 PM
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Default Re: Timing drops on the jug. Does this happen with everyone else?

TTT.. No one has seen a drop in timing on the jug??? What would be causing this if no one has seen it? Please help me out here..
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Old May 14, 2002 | 07:38 PM
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Default Re: Timing drops on the jug. Does this happen with everyone else?

Is this a dry shot? Do you have custom programming. Your timing looks low to begin with. I have heard some say there timing gets retarded with a dry shot...I have not seen that on my car with either the wet or dry shot. What kit do you have and how is it setup, where are the nozzles?
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Old May 15, 2002 | 09:52 AM
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Default Re: Timing drops on the jug. Does this happen with everyone else?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 383LQ4SS:
<strong>Is this a dry shot? Do you have custom programming. Your timing looks low to begin with. I have heard some say there timing gets retarded with a dry shot...I have not seen that on my car with either the wet or dry shot. What kit do you have and how is it setup, where are the nozzles?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Sorry, I should have given more info.. NOS 5177 2001 M6.. I hear the 01's have less timing to begin with, hence the 24* at WOT 5900rpm.. 2 nozzles in the lid 125 shot.
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Old May 16, 2002 | 03:41 PM
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Default Re: Timing drops on the jug. Does this happen with everyone else?

Any body???
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Old May 19, 2002 | 01:42 PM
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Default Re: Timing drops on the jug. Does this happen with everyone else?

Yes, it'll drop a little with a dry shot but your timing is too low even when NA.

Start by getting rid of ALL KR. Reset your ECM as well. You might also try a 4.7K ohm resistor in your IAT sensor if it's warm out.
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Old May 23, 2002 | 07:05 PM
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Default Re: Timing drops on the jug. Does this happen with everyone else?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Colonel:
<strong>Yes, it'll drop a little with a dry shot but your timing is too low even when NA.

Start by getting rid of ALL KR. Reset your ECM as well. You might also try a 4.7K ohm resistor in your IAT sensor if it's warm out.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Stephen,
This is on a 01 car.. I have never seen more than 24,5* timing in it.. I has the resistor in the IAT sensor.. I have played with the O2's with my maft from .88 all the way to .93 and have never been able to get more than 24.5* timing at WOT. Have reset the PCM. What does your newer LS1 get for timing?
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