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techtalk:ref:engctl01 [2020/02/28 22:20] ixl2relax [Thunder Heart - EA4250D] |
techtalk:ref:engctl01 [2020/03/31 02:01] ixl2relax [Motogadget M-Unit Blue] |
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| Quoting XLForum member, **RacerWill**:((http://xlforum.net/forums/showthread.php?t=1422868 Post#15))\\ | Quoting XLForum member, **RacerWill**:((http://xlforum.net/forums/showthread.php?t=1422868 Post#15))\\ | ||
| | One of the things that makes understanding timing difficult is that we're talking about 2 different time frames - crankshaft degrees for spark and real time combustion. We light the fire based on crankshaft degrees and engine load but actual burn time is in real time. To get optimal performance we need to light the fire early enough so it has just the right amount of real time to reach max cylinder pressure just after TDC - so it can expand and smoothly push the piston down, this is called MEP or Mean Effective Pressure.\\ \\ Typically, you want max pressure to occur about 7 degrees after TDC. Running too much advance starts the burn too early and max pressure happens at or before TDC, causing "ping" (actually knock). Conversely, not enough advance to the spark causes max pressure to happen too late, producing less power and laboring the engine, making it run hot.\\ \\ The programmable advance maps on the TC88A, and other modern ignition systems, allows timing curves to be altered at any RPM and any load. By trial and error the best map can be found. I didn't know about having all advance in at 3200rpm but that makes sense to me. I run about 32 deg advance but my compression is a little higher than most and compression slows burn time. | | | One of the things that makes understanding timing difficult is that we're talking about 2 different time frames - crankshaft degrees for spark and real time combustion. We light the fire based on crankshaft degrees and engine load but actual burn time is in real time. To get optimal performance we need to light the fire early enough so it has just the right amount of real time to reach max cylinder pressure just after TDC - so it can expand and smoothly push the piston down, this is called MEP or Mean Effective Pressure.\\ \\ Typically, you want max pressure to occur about 7 degrees after TDC. Running too much advance starts the burn too early and max pressure happens at or before TDC, causing "ping" (actually knock). Conversely, not enough advance to the spark causes max pressure to happen too late, producing less power and laboring the engine, making it run hot.\\ \\ The programmable advance maps on the TC88A, and other modern ignition systems, allows timing curves to be altered at any RPM and any load. By trial and error the best map can be found. I didn't know about having all advance in at 3200rpm but that makes sense to me. I run about 32 deg advance but my compression is a little higher than most and compression slows burn time. | | ||
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| + | Example drawing of advancing the timing on 86-03 Sportsters. ((photo by Hippysmack)) \\ | ||
| + | {{:techtalk:ref:engctl:adjusting_timing_cup_by_hippysmack.jpg?direct&400|}} | ||
| .... | .... | ||
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| - | ===== Programming the Ultima, Dyna & Dynatek Modules ===== | + | ==== Programming the Ultima, Dyna & Dynatek Modules ==== |
| These links should be instructive: | These links should be instructive: | ||
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| {{:techtalk:ref:engctl:thunderheart-ea4250d-startbutton.jpg?500|}}((Created by IXL2Relax of the XLForum)) | {{:techtalk:ref:engctl:thunderheart-ea4250d-startbutton.jpg?500|}}((Created by IXL2Relax of the XLForum)) | ||
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| + | |||
| + | \\ | ||
| + | |||
| + | ===== Motogadget M-Unit Blue ===== | ||
| + | |||
| + | \\ | ||
| + | |||
| + | This unit is designed to replace the power control device on your motocycle. It does not provide engine spark or timing, so you must supply (or keep) that part of the motor control devices (points & mech advance or ignition module & timing sensor, coil, etc). Their main website is https://motogadget.com | ||
| + | |||
| + | The m-unit operation (and the manual) is updated regularly so it is important to know which version you have to know what functions are programmable. The manuals are not dated, so pay attention to the version & S/N references. | ||
| + | |||
| + | Document Links:\\ | ||
| + | https://motogadget.com/shop/media/downloads/manual/munit_blue_manual_1.8_en.pdf\\ | ||
| + | https://motogadget.com/shop/media/downloads/manual/munit_blue_manual_en_2.0.pdf\\ | ||
| + | https://motogadget.com/shop/media/downloads/manual/munit_basic_blue_manual_en_2.1.pdf\\ | ||
| + | https://motogadget.com/shop/media/downloads/manual/munit_basic_blue_manual_en_2.2.pdf\\ | ||
| + | https://motogadget.com/shop/media/downloads/manual/mo.unit_basic_blue_manual_en_2.4.pdf\\ | ||
| + | |||
| + | |||
| + | Revival Cycles' has done a number of YouTube videos (called Tech Talk) and has some | ||
| + | documentation as well.\\ | ||
| + | https://technicalarticles.revivalcycles.com/hc/en-us/categories/360000739551-Motogadget\\ | ||
| + | |||
| + | The Ins and Outs of the Motogadget M-Unit Blue (21:13min)\\ | ||
| + | https://www.youtube.com/watch?v=899wODtXeRg\\ | ||
| + | |||
| + | This diagram may or may not be like your setup (may not be helpful):\\ | ||
| + | https://revivalcycles.zendesk.com/hc/en-us/article_attachments/360012382451/universal_m-unit_blue_diagram_5.0_.pdf\\ | ||
| + | |||
| + | Using Your Phone to Connect to the m-unit:\\ | ||
| + | https://www.mo-ride.de/en/\\ | ||
