I was about to type that, but then I thought about how rough the piston would be so they would need to turn it on a lathe or try using a drill press and doing some ghetto cutting on it to ensure it is perfectly round.
Hey Camden, your printed engine is awesome! I watched those vids when they were released. That was part of the reason I chose this engine, just to be different
Guys if you have other shops do this as well. You can start a plastic piston drag race. Meth, water injection whatever. The stress of winning before meltdown would be through the roof.
sadly plastic pistons wouldn't work on nitromethane because of how quickly it would dissolve the piston interesting thought though considering it would solve the melting issue
As a retired motorcycle technician and machinist rebuilding many 2 stroke and 4 stroke engines including drag bikes, this was pretty cool. I definitely didn't expect the 3D carbon fiber piston to last that long.
@@JeffreyPerrault-hk6xe cool! I started at a Kawasaki & BMW dealer in south Florida on May 13, 1979 as a bike assembler and picking up and delivering bikes. In 1985 I started working at a motorcycle machine shop working on street, dirt and ATV's and building drag bikes. 99° were Japanese bikes.
2 Stroke stuffing is one of my favourite channels, so much patience and perseverance. I can almost smell the BP Racing mix two stroke smell from my youth.
@@mtech1961 two-stroke stuffing has not a clue how an expansion chamber works and he doesn't have a clue that two strokes are internally supercharged by the piston . And he doesn't have it clear that someone already beaten to it supercharging at 50cc 2-stroke. And set a new land speed record for a 50CC at the Bonneville salt flats @150 mph
Holy Crap! That was awesome! First thing that comes to mind is that Integza has a 3D printer that will print ceramic-infused parts... I can't remember if it's resin bath or filament, but either way, he's actually 3D printed rocket nozzles with it. I would think that would be a helluva starting place for possibly 3D printing carbon fiber-infused ceramic pistons!!! I smell a collab... :D
This is why I started watching you guys. The excitement and the comradery of friends doing fun stuff together. No destroying $30,000 machines or smashing electric cars.
dang i just remembered "BUBBA's Honda Drop" bubba's is a big harley biker bar in milwaulkee wisconsin ..and once a year you buy one ticket to get in and every thing else is free like beer buckets and two refrigerated beer trucks with taps on both sides ..we got a huey helicopter lifting little honda cars 500 feet into the sky only to be cut loose falling to their death every time after time ..as they tumble through the sky some land on all four wheels that instantly fly off on contact with earth causing the bodies of the poor little honda's to become flat as a pancake
This should be on the MAIN CHANNEL!! I immediately got excited seeing the thumbnail and title. Something that hasnt happened in awhile. This was good content right here boys!
This is the new channel... watch the last video on sxs. They dont legally own sxs because Leo allegedly embezzled money from the channel. So they fired him. The channel and all finances are in Leos wifes name. HENCE. This is the new sxsblog channel.
@@chrisharding2813Yeah thats not true at all. sxsblog channel aint going anywhere. As for @barrymckociner074 They have posted many different things Not SxS related on the channel ya goof. This would not be so far off from what has been on the channel before.
Ya, I was just thinking that myself as watching this. it would probably take more heat if you had a ceramic top or if it was electro-coated with a metal shell.
The solution is clear as day, on the banner on the wall!!! N O S !!! 3D Piston with NOS! Is there a coating process that can be done on the top of the piston? I'm blowing a $1,000,000 budget just in thoughts lol...
Gotta say this is one of my favorite videos in a long time. So organic and not forced. Just friends having fun in the shop. Please consider more videos just like this. Also more crawler content is happily welcomed.
@@Steve-sxsblogparts like I said earlier, 3d print a piston and then sand cast it with aluminum cans. A little lathe work, and see how long it lasts. Next thought. Cheap quad challenge but anything broken must be replaced by the 3d printer lol
well in the 80's Honda had made race parts by using plastic parts coated in metal ceramics coatings if you could add something similar, you probably have piston that could last a decent amount of time there are also 3d filaments that post printing the item goes into an oven of sorts to burn off the carrige plastic and fuse the sintering materials
This is such a nice experiment you are doing, I think every technician who works with combustion engines is interested in the result, but does not have the time, tools and possibilities. great job!! I am aircraft engine technician for KLM.
That's goddamned amazing that it actually started much less ran for a short bit.. It's nuts that a plastic piston would work, but insane that a 3D printed one does, with layer separation issues being a nature of the manufacturing process and all.
Ok, next piston!!!! Take the bottom of a soup can or another thin piece of aluminum and 3d print over the top of it; might make it last quite a while that way!
Main thing is taking into consideration the heat to melt the filament to print, and then somehow measuring combustion temp inside the chamber, and then finding what grade to coat the top or pour a high heat resin on top and test again?
Add a sheet metal dome to the top of the piston and attach with four screws and it'll probably run for ages. Would make the ring gap easier to achieve too as it can just be between the sheet metal dome and a step in the piston side.
Can you attempt this again with the metal core filaments and sinter it in the oven? It would have to be over sized to sccount for the sintering shrink factor. It would require machining final exterior dimension on the skirt to get concentricity to the bore, but I may be over thinking it since the piston ring maintains a gap in the stroke. Possibly increase surface thickness and dick around with infill.
Back in the 80's a friend of my fathers sold a bike with a blown piston by turning one up out of hardwood on a wood lathe. Once it had acquired a good surface char it worked just fine.
When you weighed it I was hoping you'd get the crank shaved for balance but I guess it'll handle it long enough to have a laugh... holy... you're kidding... THIS IS AMAZING!!!!!!!!
@110 How about putting a Machined top to the piston to protect it from the compression combustion happening at the top? you could design it with hole in bottom to secure it with strong enough bolts and it can serve also as a clamp for the top O-ring.
Don't know if anyone else mentioned it but a company called "The Virtual Foundry" makes metal filaments for use in 3d printers. You just have to print it a little oversized then put it in a sintering oven to burn off the pla binder. You could make a piston out of inconel if you wanted.
Wow, that was truly amazing, I am literally amazed right now... I expected maybe a few pings or a second or two of rough idle at best, but seeing it go at full power is absolutely crazy!
I have some ideas to make this more robust: 1. Cerakote the piston top to keep heat out of the plastic 2. Make your own Nylon or other high temp plastic filament with graphene homogenised into the filament, this will substantially increase strength and thermal conductivity. 3. Redesign the piston with cooling galleries where the oil squirters hit like Porsche’s metal 3D printed piston has 4. Use planar 3D slicing for a stronger print, more of it will be continuous lengths of extrusion.
There’s a tale that back in the day, BSA did a publicity stunt of running a B31 on a wooden piston made of lignum vitae - no rings, just a solid chunk of wood. As I recall, the story goes that it proved quiet effective and lasted surprisingly well 😄
I would try putting a 1/4" plate steel cap on the piston just hammered into shape. See if it provides enough heat barrier for the plastic. Also maybe try some more high temp plastics.
my great grandfather did a piston in oak and let is sit in some wood treatment during the 1950is or 1960is.. it worked and it was still in the moped then i was a kid, and did ride it. Zündapp 50cc Moped, its was crome and blue.
There are ceramic filaments that you print and then fire in a kiln to get rid of plastic and keep just the ceramic. Maybe this could work, or the top of the piston ceramic to withstand the temperature better, and bottom carbon fiber to withstand the mechanical stresses better
Do it again and use the best race gas you can. In tractor pulling we use to use soild aluminum heads with race gas that cost $125 for 5 gallons and you could touch the head after a run and not burn your hand. This was back in 2001.
Try in a carbon fiber polycarbonate, then anneal the piston in the oven then run it and see. Prusa makes a great cf pc that anneals easy in the oven and has such minimal shrinkage it doesnt need to be scaled. When I anneal this material for guns, it becomes hammer proof and after annealing the heat resistance goes up.
yea 2 strokes hate the skirts wiggling around. i wonder what the clearance was at the end haha. thicker ring lands and an extra ring would help. it looks like it would run a little more had the plug not gotten fouled with plastic! ring would smash and get blown out maybe
Next, add in some of the highly heat-conductive copper-impregnated fiber (objects printed with those fibers actually feel cold to the touch) using a multi material unit to print heat pipes into the piston, and maybe a copper top to the piston to act as a heat spreader, with heat sinks on the piston skirt facess to transfer heat to the cylinder walls, and maybe a couple of small heat sinks inside the skirts for some cooling from the splash lubrication.
You could iterate until you get decent compression with the plastic, then have it done via SLS out of whatever material you wanted and it would 100% work. It would need a polish though since the finish on SLS printing is rough.
Next, 3d print a copy of the piston, and then use it to mold and cast an aluminum version from pop cans, and see how long that lasts
This is actually a good idea they need to do this or even other people try this out it
I was about to type that, but then I thought about how rough the piston would be so they would need to turn it on a lathe or try using a drill press and doing some ghetto cutting on it to ensure it is perfectly round.
They need to do this
@@jonWilk8156 I think you meant to reply to the other guy
Garage 54 has done it before, you can check it out
Lol imagine getting a running unit on Craigslist and the damn piston is plastic 😂
lol The late night Craigslist sale ... I can only run it few seconds or I'll get a fine from the HOA. SOLD! lol
i mean a chinees piston is problably cheaper then having a 3rd printer and buying the materials. (even if you have a 3d machine)
It'd definitely be a epic April fools joke on a buddy 😂
New fear unlocked
@@fordwrecker1Hey Billy Bob, were going to Glamis for the whole week, you can use my old quad...it's got a fresh top end!
Glad to see Im not the only one putting 3d printed parts where they shouldn’t belong, Great video!
Honestly, TPU is absolutely insane. You can put that in a lot of places instead of metal as long as TPU doesn't get hot.
Hey Camden, your printed engine is awesome! I watched those vids when they were released. That was part of the reason I chose this engine, just to be different
Hello Camden, I love your videos
you sir are a pioneer.
@@iniqyInstead of metal? Are you sure you're talking about the right plastic? TPU is soft and bendy as shit.
Put two screw holes in the top of the piston and screw an aluminum disc to it to stop it from melting the top
You read my mind! Great minds...
Ideas-
1. more rings
2. move the rings lower
3. paint the piston with heat resistant paint
4. keep makes these great vids!!!
paint the piston? not gonna work
@@pancake5830 Ever heard of ceramic coating on pistons?
wont work, the rings are a failure point. its metal with heat the piston and causer it to weaken. im interested in seeing actually cf piston
Spiral wound CF piston with ceramic crown. Rings run in the ceramic.
make the piston out of PA12
Guys if you have other shops do this as well. You can start a plastic piston drag race. Meth, water injection whatever. The stress of winning before meltdown would be through the roof.
There's plenty enough meth at our local dragway already....
This would be sweet.
@EnkiMMXII that's methed up.
Pipe down now, yall quit methin' around.. ya hear?
sadly plastic pistons wouldn't work on nitromethane because of how quickly it would dissolve the piston interesting thought though considering it would solve the melting issue
As a retired motorcycle technician and machinist rebuilding many 2 stroke and 4 stroke engines including drag bikes, this was pretty cool. I definitely didn't expect the 3D carbon fiber piston to last that long.
I wonder if it would be strong enough for boost if it would last ten seconds or less got me brain ticking on that one
@@richardschafer1911 Or even a turbo or supercharged.
Same here..I'm a retired motorcycle mechanic of 38years.😊
@@JeffreyPerrault-hk6xe cool! I started at a Kawasaki & BMW dealer in south Florida on May 13, 1979 as a bike assembler and picking up and delivering bikes. In 1985 I started working at a motorcycle machine shop working on street, dirt and ATV's and building drag bikes. 99° were Japanese bikes.
What about carbon-carbon? It’s used on (expensive) brakes.
2 Stroke stuffing is one of my favourite channels, so much patience and perseverance. I can almost smell the BP Racing mix two stroke smell from my youth.
@@mtech1961 two-stroke stuffing has not a clue how an expansion chamber works and he doesn't have a clue that two strokes are internally supercharged by the piston . And he doesn't have it clear that someone already beaten to it supercharging at 50cc 2-stroke. And set a new land speed record for a 50CC at the Bonneville salt flats @150 mph
as a 3d printer myself, this was great to see, subscribed =)
Holy Crap! That was awesome! First thing that comes to mind is that Integza has a 3D printer that will print ceramic-infused parts... I can't remember if it's resin bath or filament, but either way, he's actually 3D printed rocket nozzles with it. I would think that would be a helluva starting place for possibly 3D printing carbon fiber-infused ceramic pistons!!! I smell a collab... :D
This is why I started watching you guys. The excitement and the comradery of friends doing fun stuff together. No destroying $30,000 machines or smashing electric cars.
Electric cars are a$$
@@countryboydragonboy7561❤
They got me
dang i just remembered "BUBBA's Honda Drop" bubba's is a big harley biker bar in milwaulkee wisconsin ..and once a year you buy one ticket to get in and every thing else is free like beer buckets and two refrigerated beer trucks with taps on both sides ..we got a huey helicopter lifting little honda cars 500 feet into the sky only to be cut loose falling to their death every time after time ..as they tumble through the sky some land on all four wheels that instantly fly off on contact with earth causing the bodies of the poor little honda's to become flat as a pancake
Makes me wish I had friends.
This should be on the MAIN CHANNEL!! I immediately got excited seeing the thumbnail and title. Something that hasnt happened in awhile. This was good content right here boys!
Because its not SxS this be the channel for anything and everything such as experiments, go back and watch the previous video ya silly goose
@Maswan._. umm, your the one saying it should be on the main channel? I was just trying to let a idiot who cant pay attention know whats goin on 👍
This is the new channel... watch the last video on sxs. They dont legally own sxs because Leo allegedly embezzled money from the channel. So they fired him. The channel and all finances are in Leos wifes name. HENCE. This is the new sxsblog channel.
@chrisharding2813 false, and they still own 2/3rds of sxsblog and its not going anywhere
@@chrisharding2813Yeah thats not true at all. sxsblog channel aint going anywhere. As for @barrymckociner074 They have posted many different things Not SxS related on the channel ya goof. This would not be so far off from what has been on the channel before.
That's awesome! You should look into getting another carbon fiber printed piston ceramic coated, so it will reflect and take the heat!
Make it like a big Truck Diesel, small steel top with ring slots and carbon skirts.
Ya, I was just thinking that myself as watching this. it would probably take more heat if you had a ceramic top or if it was electro-coated with a metal shell.
2stroke stuffing is another great channel 👍🏻
I'm enjoying this video so far thanks guys
The solution is clear as day, on the banner on the wall!!! N O S !!! 3D Piston with NOS! Is there a coating process that can be done on the top of the piston? I'm blowing a $1,000,000 budget just in thoughts lol...
Great video! Now you need to print the lower half of the piston that sustained no damage and thread on a CNC’d aluminum head, see how long that lasts…
lol that carbon fiber piston and the fact that the wheeler ran for 1:22 is one of the coolest things I’ve seen out of an ATV 😂 Great job Steve
I know I don’t wanna hear anything about cheap pistons anymore 😂😂
That is a good idea. It would probably last longer if you put a aluminum sleeve on top of the piston from keeping it melting.
"I wish you guys could smell this cylinder"
quote of the year
That’s awesome! Good to see boys still experimenting, we need more curious minds. Glad to see you guys exploring and enjoying yourselves.
This is my FIRST time seeing yall's content and it was nothing short of EXCELLENCE. New sub earned. Love the content!
Gotta say this is one of my favorite videos in a long time. So organic and not forced. Just friends having fun in the shop. Please consider more videos just like this. Also more crawler content is happily welcomed.
The channel name change makes way more sense now.
I presume leo got the rights for the name. I also think they'll scrap the sxs blog name and come up with something new
@@maximeberube7490 Nope, the main channel is sticking around 😁
@@110Garage Either way I’m excited you guys are still putting out fun content.
@maximeberube7490 why would you assume anything... wtf is wrong with you
never assume - it makes an ass out of you and me...@@maximeberube7490
We had one of those quads years ago, had a blast on it!
17:54 Certified “hell yeah moment”
😂😂
It’s like life has been breathed back into the channels. Love to see it
2strokestuffing is a genius
And the nicest, most patient dude on the internet
3D printed Sprocket… See how long that lasts.
3d rims :)
@@reggiexp69 I'm down but I'd need a filament sponsor for that lol
@@Steve-sxsblogparts i could be a fun video
yeah the material for 3d print aint cheap
@@Steve-sxsblogparts like I said earlier, 3d print a piston and then sand cast it with aluminum cans. A little lathe work, and see how long it lasts.
Next thought. Cheap quad challenge but anything broken must be replaced by the 3d printer lol
You need to try with I high temp fillament ( pek, or peek) I bet they last a lot longer
Thats the best that polaris has ever ran lmao
well in the 80's Honda had made race parts by using plastic parts coated in metal ceramics coatings
if you could add something similar, you probably have piston that could last a decent amount of time
there are also 3d filaments that post printing the item goes into an oven of sorts to burn off the carrige plastic and fuse the sintering materials
-Ooh I can smell the piston!
Is never a good phrase to hear
Make a reinforced concrete piston and try that
This, boys. This is it. Your pivot- your direction
That's amazing. The design process, manufacturing, and getting it to work. None of that is easy. This is incredible!!
This is such a nice experiment you are doing, I think every technician who works with combustion engines is interested in the result, but does not have the time, tools and possibilities. great job!!
I am aircraft engine technician for KLM.
Wow! That lasted about 1:20 longer than I expected it to!
Connecting rod next ?
If it was Leo's quad it'd be titanium piston and a fresh rear for his razor but nobody else would know........😂
and in somebody else's name to avoid debt collectors apparently.
@@vel87x oooffffffff
Says the brokie who has a broke house. Lets see your trailer trash uploaded too your channel.
That's goddamned amazing that it actually started much less ran for a short bit.. It's nuts that a plastic piston would work, but insane that a 3D printed one does, with layer separation issues being a nature of the manufacturing process and all.
With PAHT-CF it should have run even longer. 194c temperature resistance instead of 100c and PC gets weaker with added CF on high temps.
I cant believe it i was screaming with you guys am hype right now love this type of videos buddys inventing stuff in the shop is awesome
Keep more 3D printed experiments coming!
Ok, next piston!!!! Take the bottom of a soup can or another thin piece of aluminum and 3d print over the top of it; might make it last quite a while that way!
3D printed muffler up next 😂
great vid, 2stroke stuffing is a top bloke as well
Man this had to be 1 of the wildest & craziest ideas I have ever seen...good work fellas. Loved the video. I will be subscribing.
I had an evil thought 😂 if you have a junk engine, just print a new piston and sell it fast 🤣
That would be more expensive and time consuming than throwing in a normal aluminum piston
@@taylorfielding5090 oh I know, it was a joke
people have made wooden pistons for that reason in the past!
Now is the best time to delete this nonsense
ok i like this content
run it on methanol
That's a good idea!
Damn sure run longer.
Would definitely cool it down, should also cerecote it
That's impressive, I'll be completely honest I didn't think it was possible. You guys are awesome. Thanks for sharing. 👍 👍 👍
Wow!! The conclusion of the video is an incredible sight to see!
Testing the piston at 10:10
Make a aluminum dome with indentations for the plastic to adhere to and print the rest of the piston on top of it. Great video!
You guys seem unpretentious and pretty chill for YTers. Rare these days
Main thing is taking into consideration the heat to melt the filament to print, and then somehow measuring combustion temp inside the chamber, and then finding what grade to coat the top or pour a high heat resin on top and test again?
Subscribing for Steve!!!! let him do all the shit he wants
Add a sheet metal dome to the top of the piston and attach with four screws and it'll probably run for ages. Would make the ring gap easier to achieve too as it can just be between the sheet metal dome and a step in the piston side.
I got it!!!! Make another one afew thousands of inch thinner and dip it in high tenp chrome for rims!!
Can you attempt this again with the metal core filaments and sinter it in the oven? It would have to be over sized to sccount for the sintering shrink factor. It would require machining final exterior dimension on the skirt to get concentricity to the bore, but I may be over thinking it since the piston ring maintains a gap in the stroke. Possibly increase surface thickness and dick around with infill.
That was so freaking funny I can't believe it lasted that long lololol
Back in the 80's a friend of my fathers sold a bike with a blown piston by turning one up out of hardwood on a wood lathe.
Once it had acquired a good surface char it worked just fine.
No, You gotta keep it 1000 fam.
This did way better than I would habe expected.
When you weighed it I was hoping you'd get the crank shaved for balance but I guess it'll handle it long enough to have a laugh... holy... you're kidding... THIS IS AMAZING!!!!!!!!
Why did i not grow up with friends like this
@110 How about putting a Machined top to the piston to protect it from the compression combustion happening at the top? you could design it with hole in bottom to secure it with strong enough bolts and it can serve also as a clamp for the top O-ring.
This is one of my all time favorite videos of yours, please do more experiment videos this is sick! Also, completely blew my mind how long it lasted!
2 stroke stuffing is the goat 🐐 😅 been watching him for years now and he never fails to impress me
I work with many of these materials and the problem isn't just the temperature. The fluid (petrol) damage the print and make it softer .
I am amazed that you guys got that far before it ceased very cool video 👍🏼👍🏼
Awesome project guys. Love the new Qidi printers
Put a ceramic coating on top of the piston so it will last if heat is the problem.
Don't know if anyone else mentioned it but a company called "The Virtual Foundry" makes metal filaments for use in 3d printers. You just have to print it a little oversized then put it in a sintering oven to burn off the pla binder. You could make a piston out of inconel if you wanted.
They do make metal like printer. The company I work for has printed piston from it !
Wow, that was truly amazing, I am literally amazed right now... I expected maybe a few pings or a second or two of rough idle at best, but seeing it go at full power is absolutely crazy!
you could cover the upper part of the piston with a heat resistant ceramic or resin but you need a little bit less in height for this coating
That was awesome guys was worth all those hours working on it thanks and keep it coming lads
I have some ideas to make this more robust:
1. Cerakote the piston top to keep heat out of the plastic
2. Make your own Nylon or other high temp plastic filament with graphene homogenised into the filament, this will substantially increase strength and thermal conductivity.
3. Redesign the piston with cooling galleries where the oil squirters hit like Porsche’s metal 3D printed piston has
4. Use planar 3D slicing for a stronger print, more of it will be continuous lengths of extrusion.
Maybe the conrod? Well done guys.
someone is going to take this and keep improving to it work's same or better. you have provided the prof of concept that is has the potential
Its the two rings that makes all the difference. Anything with one piston ring is a weedeater. Heck even most weedeaters have two piston rings.
There’s a tale that back in the day, BSA did a publicity stunt of running a B31 on a wooden piston made of lignum vitae - no rings, just a solid chunk of wood. As I recall, the story goes that it proved quiet effective and lasted surprisingly well 😄
I would try putting a 1/4" plate steel cap on the piston just hammered into shape. See if it provides enough heat barrier for the plastic. Also maybe try some more high temp plastics.
Salt baked high temp PLA works pretty well for high temperatures but is more brittle once annealed.
Great video gentlemen. Worth every moment of time.
That s unbelivable! Wow! That s a lot of run! Holy duck! You guys rock! 🤯🤯🤯 keep going plz 💪💪💪
my great grandfather did a piston in oak and let is sit in some wood treatment during the 1950is or 1960is.. it worked and it was still in the moped then i was a kid, and did ride it. Zündapp 50cc Moped, its was crome and blue.
There are ceramic filaments that you print and then fire in a kiln to get rid of plastic and keep just the ceramic. Maybe this could work, or the top of the piston ceramic to withstand the temperature better, and bottom carbon fiber to withstand the mechanical stresses better
Do it again and use the best race gas you can. In tractor pulling we use to use soild aluminum heads with race gas that cost $125 for 5 gallons and you could touch the head after a run and not burn your hand. This was back in 2001.
Try in a carbon fiber polycarbonate, then anneal the piston in the oven then run it and see. Prusa makes a great cf pc that anneals easy in the oven and has such minimal shrinkage it doesnt need to be scaled. When I anneal this material for guns, it becomes hammer proof and after annealing the heat resistance goes up.
to be fair the trailblazer 250 lasted longer on the plastic piston than a factory one 🤣🤣🤣🤣🤣🤣
You have to try with electroplating and test if can last longer
Next video. Full 3D printed engine 🤔❤️💛💚
I watch 2stroke stuffing also
Heh Heh, I certainly did not think it would last more than 5 - 10 seconds! Great job!
yea 2 strokes hate the skirts wiggling around. i wonder what the clearance was at the end haha. thicker ring lands and an extra ring would help. it looks like it would run a little more had the plug not gotten fouled with plastic! ring would smash and get blown out maybe
Amazing you guys! It actually worked. Thoroughly enjoyed watching this video. Cheers! 👏😊
it would be interesting to see how long a chain sprocket would last and great job on the piston
No bad language. I'm impressed !!
Next, add in some of the highly heat-conductive copper-impregnated fiber (objects printed with those fibers actually feel cold to the touch) using a multi material unit to print heat pipes into the piston, and maybe a copper top to the piston to act as a heat spreader, with heat sinks on the piston skirt facess to transfer heat to the cylinder walls, and maybe a couple of small heat sinks inside the skirts for some cooling from the splash lubrication.
You could iterate until you get decent compression with the plastic, then have it done via SLS out of whatever material you wanted and it would 100% work. It would need a polish though since the finish on SLS printing is rough.
Try PEEK material and see how well that runs