Can someone explain Spark Tables PLS, 8D, 730
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Joined: Jun 2003
Posts: 499
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From: Oak Harbor, WA
Car: 1990 IROC-Z
Engine: 383 HSR
Transmission: 700R4
Axle/Gears: 3.70
Can someone explain Spark Tables PLS, 8D, 730
I've just finished tuning my VE tables and ready to adjust spark for more power but, I'm not sure what these tables are and how they work.
Using TunerPro, 730 and S_AUJP on a 383 HSR. Tables are:
1. Spark Advance REL to TDC. Does this already add in my initial 10 deg's or do I add 10 to get my final numbers?
2. Spark Advance REL to REF Pulse Degrees? I have no clue how this works.
Appreciate if someone could explain these tables. Thanks.
Using TunerPro, 730 and S_AUJP on a 383 HSR. Tables are:
1. Spark Advance REL to TDC. Does this already add in my initial 10 deg's or do I add 10 to get my final numbers?
2. Spark Advance REL to REF Pulse Degrees? I have no clue how this works.
Appreciate if someone could explain these tables. Thanks.
Joined: Apr 2004
Posts: 3,180
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From: Browns Town
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
Those are not the tables they are the ALDL output items for logging where the spark advance is during operation.
The SA tables are (should be) labled "main" and "extended" just like the VE tables. There are a bunch of other constants and tables such as "closed throttle Vs. RPM" that also can be tweaked for hot restart etc.
Remember when you change the spark, the VE will need to be readjusted as well.
Edit: To answer your 1st, It already contains the "Base" mechanical advance that you set in the bin so you won't have to add it again.
2nd one
As a guess I'd say it is the amount of advance added as compared to the base timing DRP that is used as the input to the ECM.
The SA tables are (should be) labled "main" and "extended" just like the VE tables. There are a bunch of other constants and tables such as "closed throttle Vs. RPM" that also can be tweaked for hot restart etc.
Remember when you change the spark, the VE will need to be readjusted as well.
Edit: To answer your 1st, It already contains the "Base" mechanical advance that you set in the bin so you won't have to add it again.
2nd one
As a guess I'd say it is the amount of advance added as compared to the base timing DRP that is used as the input to the ECM. Last edited by JP86SS; Jun 19, 2005 at 02:29 PM.
Thread Starter
Joined: Jun 2003
Posts: 499
Likes: 12
From: Oak Harbor, WA
Car: 1990 IROC-Z
Engine: 383 HSR
Transmission: 700R4
Axle/Gears: 3.70
Oops, yeah youre right. I did write that down while I was looking at my CSV. Thanks for setting this post straight.
So, a reading of 28.43 in this "Spark Advance REL to TDC" is total timing added for the corresponding RPM/MAP, got it! From old school tuning, I would want that to reach a peak of 36 deg during a WOT run, correct?
I have yet to see a knock count and my highest timing reading is 34.XX during a WOT run. I wish I had a measuring tool but, I dont other than the engine is feeling snappier/crisper. Thanks.
So, a reading of 28.43 in this "Spark Advance REL to TDC" is total timing added for the corresponding RPM/MAP, got it! From old school tuning, I would want that to reach a peak of 36 deg during a WOT run, correct?
I have yet to see a knock count and my highest timing reading is 34.XX during a WOT run. I wish I had a measuring tool but, I dont other than the engine is feeling snappier/crisper. Thanks.
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Joined: Feb 2005
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From: South Carolina
Car: 91 GTA - 94 TPI Suburban
8D Timing
This is my understanding of how the tables work:
http://www.edgesz28.com/edgesz28/sup...#Spark_Advance
If you have any specific questions regarding what I linked to, do some searching here at TGO. It was through searching this database that I compiled those description. To the best of my knowledge, they are correct. Ed
http://www.edgesz28.com/edgesz28/sup...#Spark_Advance
If you have any specific questions regarding what I linked to, do some searching here at TGO. It was through searching this database that I compiled those description. To the best of my knowledge, they are correct. Ed
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From: In your ear. No, the other one.
Car: '89 Trans Am WS6
Engine: 350 TPI
Transmission: T5WC
Axle/Gears: 3.08 posi
Not to turn this into Ed's thread, but NICE WORK MAN! Maybe you could do $6E next? Oh, and when you're done with that...
(And if you need my to volunteer any more of your time, let me know).
(And if you need my to volunteer any more of your time, let me know).
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Joined: Feb 2005
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From: Rochester,NY
Car: 1993 Caprice wagon "Shammoo"
Engine: tpi'd 406, with P4 ebl EBL 730 ECM
Transmission: custom "4L65" swap.
Axle/Gears: 3.42:1 with posi
Re: Can someone explain Spark Tables PLS, 8D, 730
as of 04/09/2010 the referenced link is no longer valid
http://www.edgesz28.com/edgesz28/sup...#Spark_Advance
Is there an updated valid link or repost link available to this article?
http://www.edgesz28.com/edgesz28/sup...#Spark_Advance
Is there an updated valid link or repost link available to this article?
Joined: May 2004
Posts: 2,262
Likes: 1
From: houston
Car: 83 POS monte carlo 2015 chevy P/U
Engine: 92 5.7 tpi 5.3
Transmission: 700r4 6L60E
Axle/Gears: 2.42 too high
Re: Can someone explain Spark Tables PLS, 8D, 730
thats strange, if you go here,
http://www.edgesz28.com/edgesz28/sup.../super8ecu.htm
and then click on Tables, then click Spark Advance. that takes you to the same page he linked above, so the page is still there and working. you just can't get there with the link.
even using copy & pasting it into another browser adress bar won't get you there.
on a side note, for the last few days i can't open
https://www.thirdgen.org/forums/
to get here, i have use https://www.thirdgen.org/forums/tech-boards/
i don't have acesse to any the other boards like regional, site help or parts for sales/wanted
http://www.edgesz28.com/edgesz28/sup.../super8ecu.htm
and then click on Tables, then click Spark Advance. that takes you to the same page he linked above, so the page is still there and working. you just can't get there with the link.
even using copy & pasting it into another browser adress bar won't get you there.
on a side note, for the last few days i can't open
https://www.thirdgen.org/forums/
to get here, i have use https://www.thirdgen.org/forums/tech-boards/
i don't have acesse to any the other boards like regional, site help or parts for sales/wanted
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