5cyl 20VT audi for drag racing
Engine is built to >800 Hp specs. A similar engine measured on engine dyno reached: 976 Hp at 375kPa @ 8000 RPM.
We'll see.
Trigger
10+1 trigger, that is
- primary trigger: HALL 5 pulses on crank
- trigger_tooth=01 is appr 72 deg BTDC (trigger_tooth=00 would be at about TDC prev cyl, not good)
- secondary trigger: HALL 1 pulse on cam
See InputTrigger/MultiToothNoneMissing
Engine is running with firmware 1.1.27
http://www.vems.hu/download/v3/
- V3GUI_ ... firm1.1.27
- but firmware and temp tables are uploaded already, should NOT be needed
- VemsMT1.1.27 prebta0
- use to tune maps (12x12 highboost). Don't tweak trigger settings with it.
Injectors
Now running with small injectors (from some Opel Monsa), 1000cc/min low-impedance injectors will be used with 6.8 Ohm (50W) series resistors.
Ignition
Now running with inductive ignition. (idles at 77kPa, around 800 RPM, big cams)
It sounds like not all 5 cyls run at idle. (gets better at rev)
- proper sparkpulgs will be installed
- with the 5 big coils, dwell can be set higher, to 4.5 or even 5 msec.
Finally it will use CDI ignition.