Differences

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--- techtalk:ref:engctl01 [2020/02/28 22:17]
ixl2relax [Thunder Heart - EA4250D]
+++ techtalk:ref:engctl01 [2020/03/31 02:00]
ixl2relax [Motogadget M-Unit Blue]
@@ Line 14: / Line 14: @@
 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. |
+Example drawing of advancing the timing on 86-03 Sportsters. ((photo by Hippysmack)) \\
+{{:techtalk:ref:engctl:adjusting_timing_cup_by_hippysmack.jpg?direct&400|}}
 ....
@@ Line 185: / Line 188: @@
-===== Programming the Ultima, Dyna & Dynatek Modules =====
+==== Programming the Ultima, Dyna & Dynatek Modules ====
 These links should be instructive:
@@ Line 253: / Line 256: @@
 This section is related to the Electronic Harness Controller available from Thunder Heart Performance Corp. The information gathered here was due to a significant effort by XLForum member, Roane, while trying to implement the EA4250D on his Ironhead Sportster. ((See this XLForum thread: http://xlforum.net/forums/showthread.php?t=2075235))
-The TH EA4250D controller works in conjunction with whatever spart timing system you have, whether points, Ignition Control Module or later Engine Control Module. In any case, the TH unit does not control the spark creation or timing but rather simply controls the power to the coil (and ignition module) in order to allow or prevent the engine from running.
+The TH EA4250D controller works in conjunction with whatever spark timing system you have, whether points, Ignition Control Module or later Engine Control Module. In any case, the TH unit does not control the spark creation or timing but rather simply controls the power to the coil (and ignition module) in order to allow or prevent the engine from running.
 The installation manual can be downloaded at the Thunder Heart website (http://thunder-heart.com/Tech%20Service%20PDFs/EI4250.pdf). It should be consulted carefully in conjunction with the added information below. The manual information is not repeated here.
@@ Line 282: / Line 285: @@
 {{:techtalk:ref:engctl:thunderheart-ea4250d-startbutton.jpg?500|}}((Created by IXL2Relax of the XLForum))
+\\
+===== 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/

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