Looks like he did it without going OHC too. Simplifies it somewhat.
Wonder what's going on inside this engine:
https://www.carandclassic.co.uk/car/C1104852
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Ultimate 807 build
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Looks like he did it without going OHC too. Simplifies it somewhat.
Wonder what's going on inside this engine:
https://www.carandclassic.co.uk/car/C1104852
Not 807s at all, but some interesting engines:
https://www.classicandsportscar.com/gallery/top-10-maddest-racing-minis
https://www.classicandsportscar.com/gallery/top-10-maddest-racing-minis
The Ford Sigma is 87mm, 1.6 DOHC 16V as used in Focus and Fiesta. I've been through about 80 Ford heads and it's the closest I can find.
87mm might be close enough.
An auto engineer guy I knew in Melbourne would offer up a head gasket to the potential donor.
That should provide a good first indication. In many cases, the head bolts will line up surprisingly well. The water transfer between head and block will also likely be close, and can often be remedied with a die grinder.
That's the easy part (relatively). Figuring out the cam drive and ignition if using a dizzy could be trickier.
But I did see an example of his work. He'd grafted a Ford Falcon alloy head on to an Austin Healy six for a customer.
He also had plans for his own Morris Minor which was going to get a Yamaha motor cycle head.
Some of his work involved building drag engines, so this sort of stuff didn't phase him.
The ignition would be no problem, given that everything these days uses trigger wheels and sensors.
Did any manufacture experiment with a sliding valve?
I'm imagining a 2 stroke with just a giant plate or 2 moving backwards and forwards like what BMW did and there slide throttles.
I'm imagining a 2 stroke with just a giant plate or 2 moving backwards and forwards like what BMW did and there slide throttles.
i seem to recall kawasaki made a 250 two stoke ,with a disc valve that opened the crank case to the low mounted carb at the appropriate time ,may have been a twin cylinder ,i will have to do some googleing
Seeing as we are going all out here we might as well hire these guys to build us the ultimate head to go on our 807 block.
https://www.freevalve.com/
https://www.freevalve.com/
Here's some more inspiration. Just grab another block, turn it around and make a V12 out of a straight 6, add a couple more cylinders on the end or whatever.
https://www.youtube.com/channel/UCj4hbNBjmdvXONmcxcLSNhg
https://www.youtube.com/channel/UCj4hbNBjmdvXONmcxcLSNhg
Why stuff around with all these myriad of parts to improve performance of "HAS" been technology
Get an electric motor with one moving part
As Elon said "Ridiculous Mode"
Nuff said
Get an electric motor with one moving part
As Elon said "Ridiculous Mode"
Nuff said
Forget that! how cool are things that aren't made for each other that work with each other.
Presenting, the A series with a Twin Cam BMW head. Reckon there wouldn't be a great deal of difference between the A series and Sierra donks :roflmao:
Twincam Mini - Original BMW K head transplant
Presenting, the A series with a Twin Cam BMW head. Reckon there wouldn't be a great deal of difference between the A series and Sierra donks :roflmao:
Twincam Mini - Original BMW K head transplant
Not 807 at all, but interesting
https://historicmotorsportcentral.com/2015/07/06/tech-the-apfelbeck-cylinder-head/
https://historicmotorsportcentral.com/2015/07/06/tech-the-apfelbeck-cylinder-head/
Very interesting engine design, only really suitable for racing.
Lookie here and other places Bowie
Rotary valve - Wikipedia
And a working example. https://www.carolenash.com/news/bik...-hrd-cross-rotary-valve-set-star-bristol-show
Happy looking at previous smart tinkerers
Not to mention two strokes ! Or sleeve valve engines that were common on WW2 aircraft.
Sleeve valve - Wikipedia
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If money's no object what about a Drisdale quad cam moto gp v8 ,4 valves per cylinder 1000cc 200 plus horsepower 20000rpm and 70kg's
wouldn't that sound nice?
wouldn't that sound nice?
This is one very tidy build.