Great job there! I was just thinking if you'll be using an aftermarket crankshaft or are you making your own? In my mind, that is the trickiest part...

That is some excelent work rigt there! I also had the same ideat but I dont really have money to buy milling machines. Seeing someone doing this is just amazing. Very nice job and good luck with next projects 👍.

Awesome project mate! I'm just about to kick off building a V4 too, my plan is to use KTM 125SX parts and fit it into a BMW S1000RR chassis. I'll be watching closely!

Good job!

I looked up PWK28 carbs, came up with 82mm long.

Also have you looked at the RZV500 Yamaha

Have you had a look at that RG500 somewhere in nz with the special V4 upper case half on it? I saw it at one of the Burt Munro rallies that I went to in the paddock at Teretonga. It was a work in progress and had been for some time...

Sweet video - I'm looking to start a small foundry/machine shop and seeing a "foam" part "dipped" in plaster seems like a quick and dirty way to make parts - i like it and look forward to seeing your engine run! I'm working on a two stroke, similar to Ferrari's oil sump two stroke design

Reminds me of the langen v-twin. Its really a shame that not many 2 strokes are made anymore

This video made me depressed, this morning my honda CC110 was stolen

This is amazing! Good luck with the project! A 350cc 2 stroke V4 sounds very interesting.

Home made motors! \(^_^)/ EXCELLENT!!! (~_^)-b

What size tires and rims

After rough machining you can rubber mold to reproduce full plaster cast lost wax patterns.

Best I can do is $350

Hi. Just find your channel. That is amazing! You do things like me! I have been using just a regular hi temp engine sealant silocone for cylinder head sealing. It works just fine on liquid cooled engines, and as well on air cooled ones. And of course it works just fine as usual engine sealing as it is named. But yeah, you really have a brilliant youtube channel! This is just the way I like it!! Thanks a lot for these nice videos! I appreciate very much!

It would be interesting to know how much porosity is present.

Fantastic work! Love your channel.

Why not a v-5

Looks better than factory made engine cases from my 50cc jawa 😂

Mate... starting to come together. Looking bloody good! Sitting on the edge of my seat waiting for the next vid! Congrats on the progress so far.

Rad bro. First time I've seen your channel. Subbed

70 NZD is a very cheap price, where are you based?

If someone made a light 500cc v twin two stroke it would sell like hot cakes. Should be around 80hp and 1/3 lighter than a 4 stroke.

Since I have no idea about what it costs you. I'm going to just guess that it cost you three kangaroos! Just kidding.

Rather than think in terms of milling- glueing up- and then ramming sand molds on all these parts you will burn out, you should look at it from the opposite perspective. That is, think of the MOLD as a group of parts you are trying to mold. That is, mill up patterns that would assemble to make the mold, with keyed inserts to print the cavities and such. Make rigid or silicone molds off those patterns. And that way you just fill those molds with investment, or with bonded sand, to make identical sets of mold parts. That way, you can cast as many engine parts as you want that will be identical, without having to go thru all this tedious hand assembly of foam bits for every part you want to make.

Superb Aussie, superb.

I am very surprised for a lost foam casting.👀 You use plaster on your mold,,,, strange. 🤔 The result are great so good job man. 🙋

good job i hope more videos

That’s wicked, can I have one?

This is very cool, amazing to watch the process on youtube by a home builder! I was thinking there have been quite a few "V4" twostroke builds in recent times that mimic the Yamaha, Suzuki late 500cc models, No one has made a true V4 design to mimic the Honda 500's. I think there is an opportunity there as the NSR replica's with RG, NS motors would be more awesome with the right motor. I think on Facebook there is an Aussi guy currently working on doing just this, could be an opportunity to collaborate! ;)

Very nice. Any idea how many hours you had in at this point? Surprised you don't have more subs as the content here is great..

New sub here. I too am a machinist and motorcycle guy all in one. I've been hoping Allan would do a full video series on how the little V-Twin is made, for quite some time. I would one day like to build one of these..

Bloody good

Bloody awesome. I had this same idea some years back, make a V4 out of 4 85cc cyls (I was thinking of using KTM cyls and cranks with individual cranks like the factory RG500 GP racers used) Lack of money and tools plus a young family...

What sort of cylinder head is that?

HOLY SHIT THE V4 ENGINE DOES EXIST

Maybe using 4 valve head from Yamaha LC135 or Honda C-series/KPH aftermarket head in the next build? I think that would be cool :D

Nice little flip!

Rotor porting vid 😀

I want to build something like this Soo bad.. maybe a V8, V10, v12. Designed to fit in the place of a Chevrolet V8. Possibly cast custom cylinders using cr500 pistons. Possibly a big bore version with a stroker crank, adding about 12-15 possibly 20-30 mm to the stroke and 6-12 mm to the bore. Use a supercharger /scavenger with bypass and a reverse centrafugal clutch that disengaged with more rpm, and use a couple turbos would be better for automotive use. Over crankcase breathing. With roughly 600-750, 800 cc per cylinder firing ever TDC, it's going to be a monster. Heck I'd like to build a parallel twin, vtwin, v4, built like a Detroit Diesel, 2-71,2-92 only a gasoline burner, a supercharger scavenged 2 stroke with valves for the exhaust . Using two then later 4-exhaust valves per cylinder!🤯, this has potential to make seriously insane power if the intake can supply enough to make use of it. With the intake ports surrounding the cylinder at. BDC. RPM is not your friend. Maybe a gas version could incorporate a supplemental intake valve in the head to open as the sleeve port is closing a high lift low duration to open while the lower are closing { OR } just use valves for both. A 4 valve design with really high ports so small exhaust valves can flow high CFM. With large long intake ports. Required longer valves. Use a double overhead cam. To allow cam timing and event timing changed to suit scavenging. Direct injection possibly using a high pressure accumulator store about .6 litre at 150 bar +/-50 bar. And port injection for high rpm high power to supplement fuel . E-85 to E-100 would be exelent. Two cylinders with about 1000-1200+cc each. With a bore being 150-160% of the stroke , say 50 mm stroke 80 mm bore.. But on a more reasonable level, my china scooter has basically everything possible done to it. High compression, big bore, big carbon, ported head. Gy6 50 cc with a cam, it's doing about all it can even turning 10k rpm. If like to cast a new case. To allow two 150 big bore cylinders to be used with a stroker crank. Doing about 200 cc each and possibly convert to a motorcycle head with 4 valves maybe two XR250 heads welded together. What would be awesome is cast a case to hold a xr,250 engine allowing the transmission to be used with the scooter rim. Capable of 0-60 in less than 4 sec, 0-100 in 6 sec,with a top speed around ,105-110 mph would be awesome. I doubt over 60-70 would feel safe!

Awesome work. cant wait to see how it comes together

Subbed!

Top job.......Thanks for posting...........

So cool , good job on the foam came out well! Would lost PLA casting work for something?

Wow you are good at fusion 360! And a kiwi as well ? I’m going to have to watch all your videos now and subscribe 👍

Boy, that little guy is gonna make some *T O R K* 😳

Excellent are you nz based would love to hear this thing if its ever out and about

You're the next john britten, what part of nz are you?

I can only imagine the huge relief to see it come out as such a successful casting. So much time and effort paid off. I have no idea what the material and foundry cost would be, but I'm very interested to know the tough figure. As for the foam surface finish, I wonder if there is a way of doing a DIY wax spray to act like a high build primer. Over the years Ive been a bit interested in the very cool process of metal spraying. Amazing process for building up worn shafts and expensive dies or machine parts, but also used as an alternative to galvanising or electroplating for corrosion resistance. I wonder how hard it would be to modify a HVLP spray gun with a heated cup and gun body. It may be a case of smoothing the foam surface out with warm tools (which would be a massive time killer), but it could result in a light even texture that could be left as sprayed.