Issue link: https://read.dmtmag.com/i/727617
38 nOctober 2016n www.thunderpress.net THUNDER PRESS from air in advance, has still managed to make the occasional mess where you don't want it… all along the right side of the motorcycle. No more… period! An under-appreciated improve- ment that can not be overestimated. These features are the founda- tion upon which Harley-Davidson has erected its latest and greatest Big Twin engine. But there's more to it than that. More than meets the eye. So much more, we can't get to all of it in one issue. (So, the second part of this dissection of details… will be in the next issue of THUNDER PRESS. Or—for the eager among us, a version of the whole thing will be on line at thunderpress.net.) OK, next month in print (or online right now) we'll get to the "bottom" of the new Milwaukee-Eight. In other words—to be continued… 4 Here we see two images of the new 55mm, two-piece induction module. The fuel injectors you see in black on the blue picture, which are indexed in the manifold, have a dual-spray pattern, to ensure that each of the two intake ports receives its own properly metered "spray." The MAP (Manifold Air Pressure) input sensor for the ECM plugs into the white connector, pictured on top of the manifold. And, yes, the black module in the picture, as fi tted to the M-8 engines, is made of plastic to save weight. This has raised an eyebrow or two, but modern plastics can take as least as much abuse and heat as aluminum, as well as being a more accurately made part. Except for the lifters, all this stuff lives on top of these new cylinders. The barrels with their cast-iron liners are front and rear designated, and mounted on metal base gaskets, so they're not interchangeable as in previous Big Twins. The stud hole spacing is wider as well, with deep spigots and crankcase contact areas slightly increased in the bargain. The name of the game here is stability. These are not going to distort or shape shift like older designs. Milwaukee-Eight Continued from page 37