My Microsquirt Conversion, MSQ tuning file now posted |
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My Microsquirt Conversion, MSQ tuning file now posted |
rwilner |
Sep 27 2011, 08:29 PM
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#1
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
Ok...
I'm converting my basically stock 2.0L (stock cam, euro Ps and Cs) over to microsquirt. Microsquirt is a megasquirt-derived fuel injection computer that's robot-soldered and factory encased in a weatherproof enclosure. The I/O is implemented as a single, 35-position weatherproof connector. The whole thing is about the size of 2 decks of cards. The system I'm installing was engineered and supplied 100% by McMark. My understanding is that he usually provides these systems for motors that he builds, but I talked him into providing one for me. Below, I will document the install details here for anyone else who talks McMark into selling them a system, or who attempts something similar someday. DISCLAIMER: I won't provide model numbers, prices, or any other info like that in this thread -- please contact McMark directly for those types of details. All I can say is that you get what you pay for and this is a top-notch system that will work for the remaining life of the car. The system provides the following components new:
OK, enough babbling, on to the install! (IMG:style_emoticons/default/chowtime.gif) |
ConeDodger |
Nov 18 2011, 09:06 AM
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#2
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Apex killer! Group: Members Posts: 23,592 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California |
Rich, I'm watching this with great interest. Marks's EFI system using the Microsquirt ECU is actually a little 'smarter' than SDS. Mine works, but it could be more accurate and tunable. (IMG:style_emoticons/default/smile.gif)
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rwilner |
Nov 18 2011, 10:25 AM
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#3
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
Rich, I'm watching this with great interest. Marks's EFI system using the Microsquirt ECU is actually a little 'smarter' than SDS. Mine works, but it could be more accurate and tunable. (IMG:style_emoticons/default/smile.gif) Hey Rob MS is definitely more tunable, but it's also more complicated. There is the classic tradeoff. Is the extra tunability worth the extra complication? That's the big question, and unless you're trying to squeeze every ounce of power and efficiency out of the engine, it might not make a huge difference. If you're happy with your car's performance (and it certainly sounds like you are), then SDS was the right choice for you. I chose MS because it's what Mark engineered his system around and it required zero fabrication and modification of the engine bay / body / stock wiring. Also, the laptop-style tuning interface with realtime displays and datalogging really appeal to the way I think and understand systems like this. A perfect example: the trigger wheel wasn't reading RPM initially. Because the MS is so flexible, I was able to load diagnostic firmware onto the controller and discover the root cause of the problem. Because the MS is so complicated, it turned out that software configuration was the root cause of the problem (IMG:style_emoticons/default/smile.gif) Like carbs vs. FI or 4 vs. 6 or X vs Y, there is never (or rarely) a right answer...only a best answer depending on your goals, skills, and expectations. By the way -- your ITB setup looks awesome and it's great to see PEFI on a high performance big 4. When I build my big 4, I am considering moving to ITBs. |
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