Megasquirt It Runs!
#1
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It Runs!
Finally got my 7 running with MS late tonight. Basically I had to crank up the cranking pulse width and abuse the hell out of the starter. It runs pretty decent. After the initial cloud of death from the exhaust from being so flooded it ran pretty good. My idle is a bit high at 1,100 or so but both leading and trailing spark are working. I now need to read up more on tuning this thing as its my first time. I had it running for a hour though and have adjusted a few things and improved it quite a bit already. I shut it down and restarted it 30 mins later with no issues. I have to say this was no easy upgrade it took me 3 months from start to finish and now the tuning begins. Anyone looking to do this needs to know its not simple and will take months unless youv done this sort of thing before. This also takes a above average knowledge of electronics or a very patient person willing to listen and learn from the guys on this forum...especially Muy. I still have a long ways to go with tuning as Im using big injectors and cant use anyone else's maps. I owe a huge thank you to Muy and also renns and thank God for error's daughter card. Rex4life also helped. But finally I have a fuel and ignition controlled 7! It wont be leaving the garage any time soon. I want to get the idle lower and have it rev more freely. Also depends on the roads as right now its snowing and this car is summer only with summer tires. I wont get anxious and get salt on my baby. Even if I made a huge tuning mistake and it goes boom...thats ok with me I just am so happy I didnt give up and it runs again! Thanks again to everyone and I'm sure I'll be asking many more questions now ..just now it will be tuning ones.
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Originally Posted by jayroc
Congrats! My cranking pulse widths need tuning too.. but I use starter fluid to get me by until I get around to tuning those.
#6
RX-7 Alumni
Way to go!!!
Yea that first time getting it to start is always the hardest. You tackled both ignition and fuel and that's no easy job.
Remember not that many people have done this with a rotary--pretty soon there will be enough cars running with MS and we will all be able to help each other along with more noobs.
I also want to say thanks to Ken and Roger, they've always been there when we needed help--couldn't have done it without them.
Scott
Remember not that many people have done this with a rotary--pretty soon there will be enough cars running with MS and we will all be able to help each other along with more noobs.
I also want to say thanks to Ken and Roger, they've always been there when we needed help--couldn't have done it without them.
Scott
#7
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Gotta say without this forum I couldnt have done it...no frekin way. Lots of good guys here...where else will people spend thier most precious resource (time) and ask nothing in return? I look forward to reading everyones posts and hope to add pictures and contribute more in the near future. By the way Muy did you get your ztx 689 transistors yet? I'll ship you a N326 ecu for one...now that I have absolutely no use for it. My BAC ckt dosnt work I must have overheated the ztx during assembly. I have the BAC wired to fully open with ignition and installed a restrictor. Everyone at work thought I must have a new girlfriend from my big smile all day...told em at the end of the day nope just got my 7 running...lol. I know I have issues.
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