Hi guys!
Nice to know there's a good resource of MIVEC enthusiasts here in ZTH. I'm also interested to inject some of that magic into my 4G93P (Siemens). For that, I've got a few questions. Pardon me if I missed out on reading through the 80 pages of this thread, I did a search and am still not satisfied with some answers:
1) I'm currently running on a 2" Hotbits exhaust system, straight flow decatted. Any problems if I just keep this setup?
2) My car already uses a MAP sensor, do I still need to change the intake manifold and sensor? Any other issues with the Siemens platform?
3) A major concern is fuelling. MIVEC ECU was meant for a 1.6 and obviously uses the fuel map for that displacement. Won't bolting onto a 1.8 block cause it to be very lean? This is a worry especially during high rpm, which is what MIVEC is all about.
4) How to solve #3? Bigger injectors (to cope with the higher rpm range)? Fuel regulator or VAFC + tuning? If bigger injectors, will GSR injectors suffice?
5) It was mentioned by HenryFong that the cost of the parts for a MIVEC conversion is >2.5k. How much is the typical cost of installation?
6) From my calculations and research, I would need at least 6k in hand for a successful project. True?
7) I read somewhere about a real 4G93 MIVEC produced for the Taiwan market. Does this really exist? Is it possible to just get this car's ECU and problem #3 will be solved with my stock fuelling internals, without dyno tuning?
So thank you very much, MIVEC sifus if you can answer my n00b questions.