Im currently building a Locost. Locost is a Lotus super Seven look a like. My plan is to use VEMS 3.3 on my Zetec engine.
The new plan is to turbocharge it. I have bought a old garrett T3 (Sierra cosworth) and plan to use an Saab 900 (old generation) intercooler mounted in the rear end of the engine compartment. Futher more i plan to use water injection (DIY).
4 cyl 4 stroke
10:1 comp (will be lowerd)
170 cc injectors (will be upgraded to 357 cc Nissan 200 SX ones)
narrow band O2 (??? why don't you use wideband ? That's the best investment before any tuning!)
Yeah, I'm thinking of buying one. Earlier these WO2-sensors have been pretty expensive.
1. I plan to use batch injection. How many Fets do need. All the injectors will be fired at the same time.
- we always use 8 injector driver FETs, because they are useful for other stuff too (driving solenoids, relays, etc..)
- Ok. After some talking with Emil (via a swedish forum) i have decided to use seq injection instead.
2.The Ford Zetec coil is used with the EDIS, now i want to use only the VEMS for ignition timing (wastefire)
- 4 power ignition driver (+4 logic-level: 4+4 option) recommended for any 4cyl (allows any type of ign later). 2 ingition drivers are the minimum, + 6 logiclevel (that is 2+6 option).
- 4 it is then :-)
3. can i use the standard Ford sensors? TPS, CTS, Crank trigger, MAT, etc
- shouldn't be problem
Vems 3.3 Card
Wideband W02 Sensor
8 Fets plus spares
4 ignition drivers plus spares
2.5 kpa map sensor onboard
Ford coils and dwell time
My engine currently uses standard ECU with builtin EDIS. When i'm switching to Vems I plan to let Vems do the dwell calculating instead of the EDIS. Is it worth doing so, or should I get an standalone EDIS and let it handles the dwell calculation.
Does anyone has info about the standard Ford coils that are used with EDIS-4?
Some pictures can be found here