I'm not sure that homologation was a big issue back then.
Nice one.
Curious about that engine, now. Seems like Renault (or various "moochers" sponging off them) did a lot of crazy and wonderful and crazy things with their basic engines. DOHC engine out of a side cam block that looks like a run of the mill 810 style cast and what looks like a head with the combustion chamber architecture of a 8G head modified(?) for a twin cam setup. Now that is something to blow your skirt. Inspiration for Frans?
And those tires! 125 HP in a featherweight car on pizza cutters. Boy would I like a ride in that thing.
Yeah, I read the blurb, it's all greek to me, but looking at the pictures I was trying to figure out what any of that meant. Formula 3, M63 prototypes, the engine code stamped on the block tag (has a "B" obviously hand stamped over the machine stamped ID). I can distinguish some additions to the top of the head, some sort of bridges to support the camshafts' bearings(?), the four bolts around the spark plug tubes have something to do with the rocker arms, the "external" water pump and so on.
Great article Frans...thanks...the DJet was certainly an advanced piece of machinery...possibly more so than the A110?
These are the engines that Alpine used in their proto type cars, all explained here.
https://books.google.com.au/books?id=fzhWRqCFuPYC&pg=PA5&lpg=PA5&dq=alpine+prototype+racing&source=bl&ots=i1qa5Bjdvo&sig=ACfU3U2gtX1gtq0YE3i0He2UTfORkz4LaQ&hl=en&sa=X&ved=2ahUKEwjQjOXKs6vqAhWOzDgGHVWqCvMQ6AEwDXoECAwQAQ#v=onepage&q=alpine prototype racing&f=false
I've ridden in Frans' Jet. I'd love one. Definitely engineered better (I reckon) than the A110 but it didn't get the comparable development over the years when Alpines were in serious competition - I imagine it is more or less what would have happened if Redele had gone mid-engined. Just the pivot system on the gear linkage is a work of art. There's a slight issue with parts for the special ratio Estafette gearboxes that they use..... That gearbox is a fascinating device too, I'd add.Great article Frans...thanks...the DJet was certainly an advanced piece of machinery...possibly more so than the A110?