S3 E5 We install a RHB31 turbocharger on the Kubota D722 diesel engine in a 1999 Saturn coupe. 

Yep, no one knows everything.

So true, that drives me to study from multiple sources. Recommended Best book for turbo install practical details: Maximum Boost by Corky Bell. Still sold a book stores, automotive section. I've read 6 "Turbo DIY" books & that is still my turbo bible, by far! Paul from S. Central Tx.

Act - you - ate- her. Actuator. No L sound

Yeah no kidding, all that test fitting and figuring out how to cobble it all together takes huge time. And like you said video editing which also takes a lot of time. Very impressive

He hires out the editing and pays for voiceover work.

As another Cleetus fan here I have to also agree, it's good seeing both ends of the spectrum addressed :)

50hp... it would be a rocket ship with 50hp!

It's just that in both cases, with Cleeus McFarland and Robot Cantina, they're doing things they like. Modifying cars. I want to put a turbo'd kubota engine in a go kart or rtv and chances are these videos will be my reference, once I get the time, the equipment, the experience, and the parts sometime down the road. I'll probably start off by putting a bigger performance engine in whatever small offroad vehicle I choose, something like the tried and true 6 hp Predator 212, just to get experience working with different aspects of small engines, which industrial and agricultural Kubota engines resemble more than large diesels you see in pickup trucks and semi tractors. These little Kubota engines hold their own very well in power output, torque, and reliability, so I'd be willing to bet a go kart with the correct gearing would be a monster with one of these. I'm thinking, have the engine mounted rear-transverse right above the axle with a cvt that can handle the power, or rear-mid longitudinal (front of the engine facing backwards with the fan turned around and a shroud that helps push air through the radiator) with a manual transaxle if that's even possible on one of these.

@@lsswappedcessna I use entirely Kubota farm equipment and I've got to say they're amazing engines with only one real problem which is that they're loud. Even as far as diesels go, they're pretty noisy. The great reliability and efficiency combined with the boosted torque should be quite fun to make a rock crawling cart but you'll need a nifty transmission to get the speed you want out of it. Most go carts are pretty loud even in gas so it might not be bad for you.

@@lsswappedcessna Also, kubota makes a solid rtv series which is quite a tower, but again, loud. Loud enough that even trying to hold a conversation with someone sitting next to you is difficult.

soooooooo right. sunday treat !!

Kabootas run acculators

In RU-vid terms, he is doing incredibly well. That said, I agree he deserves even more attention.

@@802Garage yeah it just sucks to see more undeserving people with a larger following. Luckily, I feel like his audience is very loyal so if he decides to stop posting or post other things, we’ll still be there haha.

@@TheFatherCharles How many of those undeserving people are annoying, use reaction faces, and clickbait?

@@drippingwax too many

Build it and they will come.. haha get the reference

Disregard my user name. Made it to piss of my prof…. I like kids a normal amount.

I've heard that this is also why you don't use K&N Air filters on the intake of a turbocharged engine. Any truth to that? After your comment, makes sense to me...

​@@Maybe-So you would have to soak ur filter unrealistically dads using k and n on diesel for 10 years same truck

Your speaking turbo intro 101 to a guy whos years ahead.

@@DarkLinkAD : Well... I'm sorry because I'm just an amateur who did a twin turbo setup on my naturally-aspirated car 26 years ago successfully in my own garage. So pardon me if my comment is categorized as "Turbo 101 - Introduction".

You're right. That sudden change of size is absolutely KILLING the flow. On the intake he's put a sort of 3d printed velocity stack, which will improve that side hugely, but the exhaust end needs a tapered pipe, but that sort of thing can be dastardly hard to find in the sizes you need. DarkLinkAD: Even if he's years ahead it doesn't mean he was paying attention in class! Maybe he was sitting next to that hot chick? Oil drain down, was that part of turbocharging 101 also?

@@brianwelch1579 : With equipments he has, I think it's not a problem for him to make a tapered pipe from exhaust header to turbine inlet. Maybe the principle of making 2-stroke expansion chamber will help. Or by using tube reducer with appropriate dies that can make a gradual tube diameter reduction.

Easiest solution now is just to port the inlet side of the turbo into a conical shape with a carbide burr. Agreed though that the sudden wall will cause a lot of turbulence and also increase EGT. The exhaust side flowing smoothly is much more important than the air flow side, especially pre-turbo.

I wonder if the wastegate is limiting it

@@5.43v I doubt it, my wastegate mounting plate is bent to the side for maximum boost.

@@Bluezero75 no, cantinas boost

I also managed 18 psi with an RHB32 on a 1.5l Isuzu diesel engine in my van. I've since upgraded to an RHB4 and now make 24 psi. In both cases I completely blocked off the wastegate.

@@althejazzman I would have guess 16-20 being the limit for this turbo on his engine so that all makes sense.

Not only that, but you get massive stiffness benefits from the part physically contacting the jaws. Great suggestion.

Got me thinking about adding a turbo to my marine yanmar 3gm30f. Then giving up mentally contemplating all the piping mods

HEY ROBOT CANTINA, CONGRATULATIONS ON 115K subscribers..... We are a diverse and intelligent fan club. We can't wait for your next video.... This Sunday , maybe??

Sorry but no, the public, at least in America has next to no interest in super economy cars. It's been proven time and time again. But feel free to put your time and money on the line, and see just how hard you can flop.

@@DrewLSsix You are a fool. The market has cornered the public into just a few choices and not much difference between the brands thats why you are seeing the trends you are quoting. A hyper economy car that would run on fuel like diesel or even biodiesel would absolutely be a hit if it was as affordable or cheaper than the alternatives. If you can make a diesel that gets anything between 50,60,or 70 mpg even with the tax on diesel it would be way more cost effective versus gasoline. Not to mention the versatility of fuel types it could potentially allow people to make their own home brew of fuel instead of having to be a slave to the oil and gas corporations proprietary mix of hydrocarbons that is gasoline. A downside however would be cold weather gelling the fuel but this problem can be remedied with the inclusion of a gas powered pony motor as a starter and fuel line heater power supply. The only reason the car manufacturers don't want affordable and efficient small diesel engines on the market is because they know people know how to turn vegetable oils into biodiesel relatively easily and the car companies are very much in bed with the oil and gas corporations and they need you hooked on gasoline. Sometimes they even boink you harder when you buy a luxury car and it can only take premium gasoline. The only other problem with diesel is the higher NOX production and particulate. I think those problems could also be remedied if the market was at all focused on the development of said vehicles and the experimentation of new filters and exhaust recirculating systems. All this to say you do you but you are very wrong as far as what the every day common person wants. They want reliability and versatility and diesel engines provide that and have proven themselves historically.

I don't think he wants to touch a flywheel that he already had to fabricate just to work

It's actually quite easy as there are 2 flywheels being utilised, making sure they're balanced together is the key. The Saturn flywheel has already been extensively modified, so you would take the weight of the kubota flywheel. Hope that clears things up for you, cheers.

Yup… The boost would have been the same even with the 1 bar wastegate spring. Hopefully Jimbo turns the fuel up and installs the intercooler next episode.

​@@ThanosisnotrealYep too

HEY ROBOT CANTINA, CONGRATULATIONS ON 115K subscribers..... We are a diverse and intelligent fan club. We can't wait for your next video.... This Sunday , maybe??

HEY ROBOT CANTINA, CONGRATULATIONS ON 115K subscribers..... We are a diverse and intelligent fan club. We can't wait for your next video.... This Sunday , maybe??

On a diesel injection timing makes a massive difference for boost and response. Advance the timing now that you have more air and don't bother with a waste gate, they don't matter on diesel until you're into compound and like 100 psi boost.

@@TurboVisBits you dont need push 100 psi boost that far I advised against keep in mind that you want to make it reliable not shattering to million pieces

@@SHSPVR That's when you go VW TDI and measure power by how black the rear end of the car gets.

You're close, but in his case reading at the turbo outlet and intake manifold should be very similar. The biggest flow restriction usually comes from the intercooler. Even when he installs one, I doubt the pressure loss will be very high at all. certainly not 3 PSI. Given the very short run of piping, I doubt the pressure difference would even be noticeable on a boost gauge. I could be wrong, but just adding my thoughts. Measuring pressure at the turbo outlet and at the intake manifold, especially before and after installing the intercooler, would be very cool and informative!

Run 25 psi with the intercooler. The Kubota can take it.

That would be an EPIC collab.

Second, turbo engines usually have the tube down to the road, unless they have some crazy filtration system installed to route it back to the compressor inlet.

AlphaTIG 225XI is their current model and I would definitely recommend either that or the PrimeWeld TIG225X from everything I've seen.

It’s Friday night. Time to be a hero and rescue some wine trapped in a bottle.😜😜

You STILL need an oil restrictor on the oil feed going into the turbo. Without a restrictor, there will be TOO much oil flow, and the oil WILL get past the seals, and the engine will smoke.

@@davelowets I don't know who told you that but it's simply untrue. It is only relevant for ball bearing turbochargers which do not float in an oil film

Don't feed the compressor with crankcase fumes is a better idea, since the builder isn't obligated to....

HEY ROBOT CANTINA, CONGRATULATIONS ON 115K subscribers..... We are a diverse and intelligent fan club. We can't wait for your next video.... This Sunday , maybe??