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josrph berki wrote:
Thanks Ernest,
I have a 2nd gen P Port that needs EFI and ignition and MS 2 with the latest
SW should work. I do not have the luxury of using the 2nd gen CAS as it is
in the way of the v belts for the remote water pump and alternator. I have
to come up with a trigger wheel on the E shaft. I plan on using 4 RX-8
yellow injectors and maybe Kurt stage them. I have downloaded the software
on to a laptop with windoz XP. I like the redundancy of the EDIS but
without a fuel backup I feel it might be useless. EZs are midwing and I
lose fuel pump when the power goes out. Will have dual batteries and
essential bus and appropriate switching. I have not purchased any of the
EFI or ignition parts yet and just trying to understand what options are out
there
There is a picture on the rx7club.com forum where one builder built a trigger wheel into a pulley. He reported good results. At the most basic, the trigger wheel is nothing more than a circular steel object with saw teeth cut into it. In fact, a properly cut skill-saw blade could be fitted under the stock pulleys, then the alternator shimmed out with washers, and the waterpump shimmed out with a piece of cut aluminum sheet.
Conflating the redundancy of fuel and redundancy of spark confuses the issue. Both have very long failure paths that do not cross the other, and they meet at the MS. Improving one path may give you only half the benefit, but I'll take a half-loaf over starving any day. If I had to do it over again, I'd definitely go plugs up. Ignoring a host of other benefits, for a mid-wing tank, this would make it easy to put your throttle body low enough to get gravity feed.
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