####   
 #    #  
 #       
 #    #  
  ####   
         

  _____  
 |  __ \ 
 | |__) |
 |  ___/ 
 | |     
 |_|     
         
         

 ###     
  ##     
  ##  ## 
  ## ##  
  ####   
  ## ##  
  ##  ## 
         

         
|\     /|
| )   ( |
| |   | |
( (   ) )
 \ \_/ / 
  \   /  
   \_/   
         

         
  #####  
 ##  ##  
 ##      
 ##      
 ##   #  
  ####   
         

IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now.


Visit Preferences to set your user name
Summary of change:
We're investigating an engine setup First we would want to confirm that trigger is 48+1 (unmodified LS1 with 24 tooth on crank without missing tooth), as on: * MembersPage/JorgenKarlsson/TwentyFourX * MembersPage/EmilLarsson/LsMustang '''Pri and sec trig setup''' * Both pri and sec trig edge are "Falling". Regular "coil type" with "LS1 forgiving" enabled for sec trig. * Pri trig is (must be) falling edge to get evenly spaced teeth. ---- '''Triggerlog with simple coil-type''' * Trigger setup as "trigger type = coil type" and "special trigger = normal" (no divbyN). * [http://www.vems.hu/files/MembersPage/MattiasSandgren/LS1/cranking-normal-48.triggerlog triggerlog] and [http://www.vems.hu/files/MembersPage/MattiasSandgren/LS1/cranking-normal-48.vemscfg config] * '''Startup attempt successful''' ** Needs some evaluation ** Handles free-revving fine, no trigger errors ** Timing was good at : TDC after the trigger 78, first trigger tooth 1. * Why was this not working years ago without divbyN=2? * ''Note : the car is 200 km away from me'' http://www.vems.hu/files/MembersPage/MattiasSandgren/LS1/cranking-normal-48.png ---- '''Triggerlog with divbyN = 2''' * Trigger setup as "trigger type = coil type" and "divbyN = 2". * This has historically worked out fine on several engines, so the trigger configuration was not under scrutiny. Triggerlogs and vemslog with engine running and having issues. Examples of cranking and idle, with "LS1 forgiving" both dis- and enabled. * http://www.vems.hu/files/MembersPage/MattiasSandgren/LS1/ Note about triggerlog capture below: auditrigger divby2 so the missing tooth might be "optical illusion" : http://vems.hu/files/MembersPage/JorgenKarlsson/LS1/MattiasChevy/ls1_23_1_strange.png ----
Optional: Add document to category:
Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.