Again throughout WWII, Chrysler bodged 5 inline-6 engines collectively to create the highly effective A57 multibank tank engine. [Maisteer] has some high-revving inline-4 bike engines he’s making an attempt to place collectively too, however not like Forties Chrysler, he additionally has a trombone… and much more RPMs to cope with.
The Chrysler flatheads have been revving at just a few thousand RPM– their redline was virtually actually within the three-thousand vary. [Maisteer] is working at 15,000 RPM, which is the place the true problem of this construct lies: the trombone within the picture is only for enjoyable. He needed to make use of a heavy chain to hyperlink the crankshafts, however at that rotational velocity, a heavy chain turns into actually heavy— or not less than, it feels a drive many instances its weight on account of centrifugal drive. The lietmotief of this video is a quote by an automotive engineer to the impact that chains don’t work over 10,000 RPM.
That leads to some issues for the intrepid “not an engineer” that take a lot of the video to cope with and in the end doom the engine linkage– for now. Not earlier than he will get an iconic 8-cylinder sound out (plus some fireplace) out of a trombone, although. Of specific be aware is the maker-type workflow Hackaday readers will recognize: he 3D scans the engines, CADs up elements he wants and sends away to have them CNC’d and SLS printed.
Hacking bike engines into vehicles is nothing new. Hacking them collectively into franken-engines is one thing we see much less typically.
Because of [Keith Olson] for the tip! Keep in mind, if you wish to toot your personal horn– or toot about another person’s venture, for that matter–the information line is at all times open.
