Toyota Celica GT-Four -88 install
I'm installing a Genbouard 3.2 in my Toyota.
The engine is a 3SGTE 4 cyl turbo.
I've sorted most of the board configuration, WBO2, EGT etc.
Now i've started thinking about the trigger options.
The engine has 2 trigger wheels with 3 VR sensors mounted in the distributor.
One wheel with a single tooth and 2 VR mounted 180 degs apart
- 1 VR timed at 30 deg BTDC for cyl 1
- 1 VR timed at 30 deg BTDC for cyl 4
Another wheel with 24 tooths even spaced, no missing tooth
- 1 VR timed with one tooth timed at 10 deg BTDC
The distributor is adjustable, atleast +-10 degs.
The plan is to use one VR on each wheel, the single tooth VR is used as trigger-sync.
Here is a link with pictures of the wheel and VR sensor arrangement.
(Borrowed the link from EmilLarsson, hope you don't mind.)
The question is then what does it take to make this work with the Genboard?
Some general trigger questions
- How are the ignition events scheduled, are they timed to the trigger-sync or to the last tooth before the actual event?
- How often are the timerticks/crankdeg calculations done, once every trigger-sync or once every tooth?
- About the "coil" vs "multitooth" options, does "coil" mean that a spark event is scheduled at every trigg?
Some notes about supply noise
- I noticed that the supply to the AD597 gets very noisy when the WBO2 heater is active, the result is a jumping EGT figure that averages about 3 degs higher than normal due to the noise.
(The docs aren't exactly for dummies... :-) )