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techtalk:ref:engctl50f [2020/01/11 23:32] – [Discussion of Old / New Ignition Map Perspectives] ixl2relaxtechtalk:ref:engctl50f [2024/01/14 16:17] (current) – hippysmack
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 [[:techtalk:menu|{{  :techtalk:gototechnicalmenu.jpg|}}]] [[:techtalk:menu|{{  :techtalk:gototechnicalmenu.jpg|}}]]
-====== REF: Engine Control 50f ======+====== REF: Engine Control - Sub-50F ======
  
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 It is the responsibility of the user doing the tuning to evaluate the information they find in order to know that it is compatible with their engine configuration and riding circumstances. Also realize that those who are aggressive riders will often tune right to the edge of usability in searching for a bit more power or responsiveness, while other, less agressive riders, may prefer to tune their timing to avoid problems from some variables and factors that might push it over the edge. It is the responsibility of the user doing the tuning to evaluate the information they find in order to know that it is compatible with their engine configuration and riding circumstances. Also realize that those who are aggressive riders will often tune right to the edge of usability in searching for a bit more power or responsiveness, while other, less agressive riders, may prefer to tune their timing to avoid problems from some variables and factors that might push it over the edge.
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 +If, somehow, you overlooked these, be sure to read these comments:\\
 +[[techtalk:ref:engctl01#why_adjust_the_spark_timing|Why Adjust The Spark Timing?]] by **RacerWill**\\
 +[[techtalk:ref:engctl01#too_much_advance_timing|Too Much Advance Timing]] by **Aaron Wilson**\\
 +[[techtalk:ref:engctl01#manifold_absolute_pressure_-vs-_vacuum_reading|Manifold Absolute Pressure -vs- Vacuum Reading]] by **RacerWill**\\
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-http://xlforum.net/forums/showthread.php?t=1422868\\+https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-electrical/sportster-motorcycle-electrical-and-ignition/132778-daytona-tc88a-do-your-own-mapping-tips-questions?t=1422868\\
  
 **Post#117 - Xena commenting on 'Best Map' - May 2012**\\ **Post#117 - Xena commenting on 'Best Map' - May 2012**\\
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 Optimized squish band = subtract 2 degrees\\ Optimized squish band = subtract 2 degrees\\
  
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 http://xlforum.net/forums/showthread.php?t=336441 http://xlforum.net/forums/showthread.php?t=336441
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 35.0 degrees @ 30" MAP / Above 4,500 rpm (Wide Open Throttle) ... just right, and makes more power!\\ 35.0 degrees @ 30" MAP / Above 4,500 rpm (Wide Open Throttle) ... just right, and makes more power!\\
  
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 +https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-electrical/sportster-motorcycle-electrical-and-ignition/11396-final-tc88a-map-program-lots-of-other-data?t=18702 
 + 
 +**Post#396 - JBM - Aug 2007** - Spark advance for manifold pressure below 16 In/Hg\\ 
 +To me it's still a mystery why TC88A doesn't calibrate values below 16 in/hg. In HD's own Screamin' Eagle Ignition Race Tuner (SERT) you may customize the stock ignition module with SE ignition curves and calibrate map values in the range of 0-16 in/hg also. The SERT/OE range is 0-103 Kpa (0-30 in/hg), while the Twintec range is 54-103 Kpa (16-30 in/hg). SERT has 9 rows, and four of those are below the TC88A lowest row. I ran SERT before I installed TC88A. 
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 +**Post#412 - JBM - Aug 2007**\\ 
 +This morning I sent an email to Chris Schroeder from Daytona Twin Tec and asked about those advance issues for manifold pressures below 16 In/Hg in TC88A. With his permission I publish his reply:\\ **Very few engines require additional spark advance below 16 in-Hg manifold pressure. The TC88A uses the 16 In-Hg value for all lower pressures. As further clarification, internal cylinder pressure is so low under these conditions (MAP below 16 in-Hg) that maximum spark advance values near 45 degrees are reasonable for most engine applications. Since 45 degrees is the maximum advance the TC88 series is capable of, there is no reason to complicate the advance tables. Even higher advance values yield little benefit.**
  
-http://xlforum.net/forums/showthread.php?t=18702 
  
 **Post#1005 - Turbota - June 2010**\\ **Post#1005 - Turbota - June 2010**\\
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 It's a shame that you guys and girls are the only people who are providing Daytona Twin Tecs after sale service, Daytona Aren't, and I appreciate it as I am sure every other person who has benefited from your work. It's a shame that you guys and girls are the only people who are providing Daytona Twin Tecs after sale service, Daytona Aren't, and I appreciate it as I am sure every other person who has benefited from your work.
  
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-http://xlforum.net/forums/showthread.php?t=1419021+\\ 
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 +https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-electrical/sportster-motorcycle-electrical-and-ignition/132607-tc-88a-chat?t=1419021
  
 **Post#235 - Rico05r**\\ **Post#235 - Rico05r**\\
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 I have a newer version of the Jester 8 Ball map for the 1250's. I have a newer version of the Jester 8 Ball map for the 1250's.
  
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-http://xlforum.net/forums/showthread.php?t=1422868+https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-electrical/sportster-motorcycle-electrical-and-ignition/132778-daytona-tc88a-do-your-own-mapping-tips-questions?t=1422868
  
 **Post#193 - Highly-Dangerous mentions Turbota's maps: MAP Modified 35 / MAP Modified 33 / MAP Modified 35 Revised** - Nov 2019\\ **Post#193 - Highly-Dangerous mentions Turbota's maps: MAP Modified 35 / MAP Modified 33 / MAP Modified 35 Revised** - Nov 2019\\

Trace: • EVO: Engine Mechanicals - Sub-01F • REF: Engine Mechanicals - Sub-03A • REF: Tools - 145