Lost Foam Casting - V4 2 Stroke
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- Опубликовано: 20 апр 2024
- In this video I show off my new 'Test' casting which was lost foam cast. I also give a brief run down of the engine design and explain what is next for my V4 2 stroke GP motor build.
The next step is to get some more casting supplies together and head to the foundry to have the gearbox cassette plate and the front crankcase half cast. After that I will machine the foam pattern for the rear crankcase half and have that poured. from there it will be off for heat treatment and onto machining. 
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I was impressed with the V-twin but this is going to be amazing! Very excited to see how this evolves 👍
Thanks, I’m hoping progress is quick.
Saab made a two stroke V4 many years ago. This will be fun! 👍😀
The V4 was a Ford four stroke engine, they made a 2 cylinder 750cc two stroke, a 3 cylinder 750 and 850 two stroke but no V4 two stroke. 🙂
Put up some brap brap content, please.
I had a bridge as a daily driver for years.
Gods, I miss that car.
I’m editing some as we speak
love to see it
Let's see that porting you did!
I’ll post it up when I get a minute to edit a half decent video.
Very Cool!
Where was the footage of the rotary stuff available? Second channel?
Thanks. It’s on my computer, when I get some time I’ll put a video up on my second channel covering the build. On this channel I might show how I did it in regards to the set up and CAM.
Whats your other channel called
Bunker fuel, it’s linked on my channel. The rotary video should be up this evening.
Is there any chance you would share the files for the casings? Would live to try 3d print this
No, sorry. Once the files are out there I have no control over them.
Hi mate I didn't know you had another channel - what's the name of the other channel?
Bunker fuel, you can find it on this channel page down the bottom. It’s mostly Land Rover stuff and the odd rotary video.
Rotor porting vid 😀
There’s a brief video about it on my other channel, I might cover off the intricacies of setting it all up and programming it if I get time.
I've been thinking about a similar project. Why did you pick the 85cc cylinder? Why not aim for the traditional 500cc four? I'm been thinking of using a KTM 300 cylinder, which would make a 1200cc insane engine.
That’s sounds like a lot of bike haha. firstly they’re very cheap and parts are everywhere. Secondly, unless you’re a pro a 500cc bike will be a handful, 350cc will make power similar to a 600 which make good track bikes for your average rider.
Thirdly, exhaust packaging is very easy with a smaller displacement and the bike will happily rev to 13,000 without too much stress on the parts.
I can always put a 112cc kit on it and make it close to 500cc if it’s not enough later on.
@@OddsandEndsMachining Yes, you are 100% correct, my 300 KTM thinking is insane overkill. I used to race a Yamaha TZ750, just four cylinders at 186cc each, and it was insane. There is no way I could actually ride such a beast. Packaging the four exhausts on the YZ750 was a royal pain.
@@OddsandEndsMachining I just bought a new cylinder and piston (plus rings, top end bearing, etc) for my KTM 300, It was over $1200. Nothing close to inexpensive.
@@PatFarrellKTMx4
@@PatFarrellKTM where as you can get Chinese 85cc cylinders with pistons for $150, which will work for the prototype.
Why don't you cnc mill the pieces instead of casting them?
Because billet would Cost in the ball park of $2000 for material alone and my cnc mill is not large enough to machine the cases in one or two set ups. Casting is $10-12 a kg and the total weight is 27kg. A lot more forgiving if I make a mistake.