2056 microsquirt, Its alive! Now I have to tune it |
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2056 microsquirt, Its alive! Now I have to tune it |
peteyd |
May 28 2015, 08:10 PM
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#1
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Senior Member Group: Members Posts: 707 Joined: 27-March 08 From: Elora, Ontario, Canada Member No.: 8,858 Region Association: Canada |
I had my car on the road for only two summers until I wanted to get a more reliable engine. I was not too familiar with the microsquirt, or megasquirt system, but when Mark started to offer a kit I knew that it would be a great starting point. I also had followed the progress of McMarks, rwilner and Zachs conversions and figured they had done enough trail blazing that it would be a piece of cake.
I started to piece together my own little manuel of pictures and notes from other threads and came up with my own little DIY powerpoint. So hopefully this thread can benefit others and hopefully these guys dont mind that I am reposting some of their photos. I didnt just decide to buy the system on a whim though. It all started one night when I was driving home on the highway and I heard a pretty large bang. I had just replaced my oil pressure relief valve with the new tangerine product and thought my engine had just exploded! I pulled over and realized after digging around that my #3 spark plug blew out of the threads. I have a head temp sensor under the plug, so Im thinking that it wasnt turned in all the way and the pressure was too great for the threads to hold the plug. BTW the pressure relief valve is a great product That winter I pulled the engine and then the head and put a time-sert in #3 After bolting the heads back up, I noticed that my valve train geometry was off. So at that point I decided to measure and cut custom pushrods for the proper geometry. https://www.youtube.com/watch?v=aE-TJxlE7Ck And since I had the engine out, and Chris had just come out with another great engine product, I figured what the Hell, and bought his SS pushrod tubes and installed them. At this point I had been thinking about McMarks EFI kit seriously, and decided to pull the trigger. I ordered the kit from Mark @ Original Customs. I patiently waited and my kit finally came! Im using the stock 2L plenums and throttle body. Here is what came in the kit. (photos from Zach) I got the same stuff. |
peteyd |
Aug 1 2015, 07:54 AM
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#2
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Senior Member Group: Members Posts: 707 Joined: 27-March 08 From: Elora, Ontario, Canada Member No.: 8,858 Region Association: Canada |
yipee! Im pumped now!
Last night my buddy Brian and I started to trouble shoot my connection issue. We decided it was easiest to remove the harness from the engine and disconnect all the connectors. We then hooked up power to the ECU and grounded it properly and connected to tuner studio. This worked fine, eliminating the possibility that something had gone wrong with the ECU. Next we put it back on the engine and powered it and grounded it. Still worked. We then started to hook up various connections until we lost a connection. We lost the connection when we hooked up the o2 sensor. So we thought that this was the problem. We then hooked up the remaining connectors, but then we started loosing the connection again! Keep in mind Im not the most electrically incline. As we were connecting and disconnection power to the ECU, Brian noticed that the fuel pump was turning on and off in conjunction. He figured out that I was powering the ECU through the fuel pump and this is where my problems were coming from. As we were connecting more sensors it was putting more of a drain on the power source and it wasn't holding a connection because the power wasn't consistent. We fixed that problem and gave the ECU a direct power source, then connected all the sensors again. Problem fixed! We were then able to check all the coils and injectors which were now working properly. We checked the trigger wheel which worked properly after changing from rising edge to falling edge(or vis/versa I can't recall now). It was then time to try and fire the engine. It was only puffing and coughing, so we figured the timing was off. We had a starting point of 295 degrees, but that obviously wasnt working out. That is where I am at right now. I now see that Michelj13 is stating that his zero timing is at 61 degrees, so that is what I will try today and see if she fires! Wish me luck |
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