![]() ![]() How one times ignition firing with that happening and not ending up with horrible harmonics/vibration is unclear, but it's at least possible that the ferrari/aston skunk works have figured out a way to make it all work with acceptable levels of longevity/vibration. Thanks Jac Mac, thanks Alan, I'm certainly following what you're saying, and that all makes sense.Īs Jac Mac wisely points out, a flat crank in a four stroke V12 of any angle results in three cylinders arriving at the top of their throws at the same time. Now to me 180° is a flat cyl layout, with crank throws paired end to end 120°, Not a Vee of any description. Unlike most flat 'boxer' engines, the crankshaft remains similar to that of a Vee-12 in having six throws, each shared by a pair of opposed cylinders, an arrangement shared by Porsche with their 917 Flat-12 sports car engine. Quote.'Ferrari started with their inlet ports on the outside of the Vee, then moved them to the inside for 1969, but for 1970 sidestepped the issue by adopting an engine configuration with 180° between banks. I see Cliff has been on the Ferrari Chat forum about this same subject ( Even trying to take wagers on the outcome.is there nothing this man wont do for a $$$? ) ![]() ![]() It could also be designed with six rod journals, but my heads going nuts trying to visualise the firing order & of course what would you set the Vee angle at?. The intervals between these groups of three being determined by the Vee angle used. Click to expand.If 'It is' a flat crank with 12 individual rod journals then it must fire three cyls at a time. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |