Engine Control

Engine Control - put under engine or leave separate?

• Theory - spark, fuel control
  
  • passive v active (wasted spark and carbs v PFI/DFI and spark control)
    
• Tuning
  
  • alpha-n
    
  • common ecus
    
• Custom cams
  

Theory

Passive

It is possible to run an engine without an engine control module.
Wasted spark such as yamaha wr450 before 2010
cbr is carb stock

Active

control spark - timing
control fuel - timing, duration (can't really change angle or placement so we put that under fuel system design, not here)
control air - throttle
control temperature - radiator redirect valve, fan control
control valve timing, valve lift (not electronically tunable, but still control, i'd be willing to put this under intake if that's a better place)

Tuning

Theory

• dithering
  
• open v closed loop tuning
• dynamometer (should have its own page also
  
• spark tuning
  
  • mbt
    
• fuel tuning
  
  • duration
    
    • lbt
      
  • timing
    

Closed v open loop engine control

• • short term factors
    
  • long term factors
    
  • place in motorsport
    

Data and Data Collection

• stuff needed to run the engine
  
  • cam sync
    
  • load (alpha, map, maf)
    
  • rpm
    
• stuff needed for compensations
  
  • IAT
    
  • map (for alpha-n)
    
• stuff you should get so you can figure out wth ur doing
  
  • oil pressure
    
  • coolant temp
    
• cool data so you can do custom engine stuff
  
  • cylinder pressure
    
  • knock sensor (cyl pressure can handle this if you have it
    
  • fuel flow meter
    
  • cyl temperature

I'm sure there's stuff im forgetting