It's amazing how a turbo diesel Saturn has managed to keep my attention better than any and all automotive content out there at this point. I love this series I'm so glad I found this channel

60mpg at 65mph is nothing to sneeze at! nice work, love this series

My favorite series so far on youtube

The intercooler needs to be force fed with air to allow it reduce the compressed air temperature maybe fitting a scoop on to the hood may do it

A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few ideas as possible. There are no prima donnas in engineering.

Switching to electronic boost control might help with your lag in boost when changing gears. Especially if you were to use an interruption-style controller. That stops the actuator from seeing any boost pressure at all until you want it to. That can have a massive effect on spool-up time.

“Laughter connects you with people. It’s almost impossible to maintain any kind of distance or any sense of social hierarchy when you’re just howling with laughter.”

One minute in, so this is what a life complete feels like...

Better placement of the intercooler will definitely help EGTs especially above 55mph.

I’m sure it’s already been said but an air scoop for the inter cooler would lower egts at WOT considerably by further cooling the charged air. Really enjoy this series, please keep it coming!

It’s wild to me that a Saturn powered by an industrial diesel engine is probably one of the best car build series on KZfaq right now.

I appreciate your gentle and family friendly delivery. I really like this particular series.

I can't believe the progress that you've made. Heck, the engine bay even looks nice. At those speeds, you should probably install one of those deer scaring whistles on the front bumper.

That hood screams for nice scoop for air flow to ic 👌

An old farmer taught me a diesel trick. He added cheap mineral 2 stroke oil to the fuel at about 100:1. It runs quieter and sweeter. It makes up for the loss of sulphur in the diesel and keeps the pump and injectors happy. I've done this for 20 years in my diesel vehicles and tractor with good results. Smokes less too. Give it a try!

The amount of effort you put into these videos is always amazing.

Now imagine how zippy that engine would feel in a lighter chassis, like, say, an old French car.

I really enjoy this series. America needs more guys like you tinkering with stuff to improve what "is" into what "could be" and not get stupid about it in the process. My hat goes off to you Jimbo. Well played , Sir Jimbo An ordinary production car that gets over 55 MPG with realistic modifications that doesn't compromise safety or reliability and is still pretty low emissions. Why T.F. don't they make these cars to sell to the public ? This is EXACTLY why people don't want American cars anymore - I.M.H.O.

I get so excited when i see your vids pop up

“The trick to having good ideas is not to sit around in glorious isolation and try to think big thoughts. The trick is to get more parts on the table.

Improving the fuel economy whole increasing the cruising speed 4mph is phenomenal.

5:19 All I can think when you talk about temps is, "Why?! What happens when it hits 2000?!" "The whole boiler explodes!"

An engine is just an explody air pump. I know nothing about diesel mechanics, so this video series has been fascinating!

Who else agrees this guy’s voice and accent is awesome?

damn, ive never been this early to an upload before

Great explanation of what you are doing and why. It won’t stop they keyboard warriors completely but should help those that just didn’t listen to something. As for the ring gap, it may actually be ok for the turbo. I’m not sure about kubota, or if this engine also has a turbocharged option in a different application. Other tractor manufacturers use the exact same shortblock with or without a turbo, so they set the ring gap for turbos no matter if the engine gets one when installed or not. It’s still a generic maybe, but it will give you something to hope for when the egt alarm is going off. 😂🎉😂 Now back to the video

Think you should add a duct or a scoop if that's how you mounted the intercooler, with it sticking out upwards like that it has more turbulance than airflow and it will do as much as a passive cooler. Air to air collers need AIR, LOTS OF IT. Please do anything to direct some air through the intercooler.

ELECTRIFY THE RENAULT. It's time for a new Henney Kilowatt!

I don’t think I’m alone in saying thank. You’re inspiring our imaginations. I think all that’s missing is a good scoop!

The wheel bearing sound adds an awesome level of rising intensity

You're really showing people you don't need a $100k r34 GT-R to be a car enthusiast and enjoy working on cars, like some automotive youtubers make you believe. Love the content mate. Keep it up.

If you haven't googled it yet: According to the French registration plate, the R10 used to live in the 'departement d'Ain', Rhône-Alpes region, roughly between Lyon and Geneva (which is already Switzerland).

That epic dent removal process was worthy of it's own KZfaq short!

What a great little trick to get extra torque on the short side of the Allen key with a nut driver at the 5 minute mark. Must keep that in mind in the future. Nice one Jimbo.

Thanks for letting everyone tag along today. You've nailed the curious factor on this channel.

Love the engine modifications and all, but sometimes I just come for the uplifting music.

I have an additional engine idea for the Renault as well. You mentioned that you would like the GEO Metro 3 cylinder engine, but it is difficult to find. There are actually several alternatives and also some interesting small diesel alternatives as well. One is the Mitsubishi Mirage 3 cylinder. This engine is still in production and makes almost 80 horsepower from the factory. They are fairly easy to find. Another is the Briggs and Stratton/Daihatsu 3 cylinder liquid cooled engines. There are gasoline, turbodiesel, and non turbo diesel 3 versions available. The Kohler liquid cooled diesels are also attractive options, such as the KDW1003, used in the Polaris Ranger 1000. The Canadian 799cc om660 Smart Car diesel is another engine which may be the best option out of all of these next to the Mitsubishi Mirage 3 cylinder. It makes about 40 horsepower but can be tuned to make more power than that, meaning that stock, it would have identical power output to the stock Renault engine. It may be more difficult to get, as it has to be shipped down from Canada, but I think it would make an awesome engine swap. Another weird but cheap option would be to swap in one of the Chinese V-twin yanmar diesel clones. This would be a similar swap to the Predator 420 in the Insight, but diesel. Those engines are also very cheap for a brand new engine with the disadvantage that you have to wait for the shipping from China. One additional crazy idea would be to swap in a motorcycle engine or jetski engine, something with a lot of power at high RPM. Maybe a Yamaha 600CC or similar, or even one of the Kawasaki STX jetski engines.

Enough for me. I used to enjoy this thing to get to work for years

That was a gorgeous dent pull out. You have a real mastery with cars. They seem to let you work on them the way some people can get horses to comply.

You've been watching "Carter Auto Restyling" to end up with bodywork so perfect in one episode.

What universe is this 3 videos 3 week in row thanks for the content

I missed a few episodes... and hooooly this thang is CRUISIN' now!!! Super impressed. By far one of my favorite builds on the internet. Those diesels are a popular swap in the sailboat world, believe it or not. Funny finding a little Kubota in a $60k+ yacht. Even more hilarious to see one in a Saturn. Great work guys!

Watch Cleetus and his 3000hp car? Yes, but only after the newest 3 cylinder Kubota testing is complete!

76mph great job professor! I heard one of these refer diesel engine trailers rattling away next door to a Whataburger and I thought of this project.

Love it! You are approaching early 60's bug levels!

if i remember rightly you have a 2-3mm lip the whole way around the inlet to the exhaust housing from the mismatch in size of your pipe that feeds exhaust gas into the turbo. if you take a grinder to it and port match it you should get more turbo response, i suspect it will help it make more boost in 5th when you are trying to push more air through it.

I liked the bit at the end, don't want to spoil it because it's pretty much a cameo

To the optimist, the glass is half full. To the pessimist, the glass is half empty. To the engineer, the glass is twice as big as it needs to be.

Nice body work at the end there! Major improvement.

12:06 phwoar this thing is becoming positively rapid!

I like the new format. More scientific. I hope you keep this!!!

Have a sensible suggestion for you Once upon a time propane was added to diesel to clean the combustion up and make combustion quicker. LPG/propane is a thing in Europe still. Easy way to find another lump of power

I enjoy the whole diesel Saturn series chap. I consider you give it a name so it wouldn't be forgotten by time. I got a name for yours, the Saturn 720TDI (it would be more green for eco-guys with a tiny green "ECO" sticker) But, really, this conversion is astonishing. The Prius did around 40 - 50 MPG The Saturn 720TDI did around 58 - 59 MPG with 720cc engine which modified with a Turbocompressor, an Intercooler, and fuel injection pump adjustment. The 0-60 time is not important when you wanted a car that only drives you from A to B with certain experience of the car. I like cars (well, some of it, not all cars) especially if it had a diesel engine and of course manual transmissioned, but mainly I like trucks (not the trucks referred to many US people, but truck in the whole world or in UK you said lorry) and buses (with diesel engines), so the 0-60 time is not going to matter me. What I personally love about this Diesel Saturn series is the sound of diesel engine, a real diesel engine. Don't convert this Saturn to EV, please.

Propane injection. Excellent content. I did prototype diesel engine testing for many years. Diesels have Exhaust Gas Recirculation for a reason. The charge cooler is heat soaked because of the mounting on a large steel bracket. More instrumentation is key and data logging real time not relying on video sync errors. More temperature and pressure sensors. I wish I could see the car in person. You're really pushing that engine hard. Don't be afraid to blow it up. The head gasket is going to be your failure point usually into the coolant passages. NOx is created during lean run conditions. You're not producing smoke as far as I can tell so you're far from too rich. Wide band AFR or Lambda sensors? I want to see that little engine do sub 20 sec 0-60 times.

"May or may not have gone 76 miles per hour"-- Reminds me of my mom's BMW 1800 sedan, which we "may or may not" have gone ninety-five miles per hour with, when driving on the Pacific Coast Highway, back in 1973. Not bad for a car with only a little over 100 horsepower! PS my buddy Fred owned THREE Renault vehicles back in high school: a Daupine, an R8 and an R10... even back then in 1970, they were considered weird cars! PPS can I hire you to pull the dent out of my wife's Subaru? Awesome techinique!

4:02 it would have been funnier if it were G. Floyd saying he cant breathe lol

I think it is a result of all of the above. I used to have a diesel jetta, same engine you are planning on putting in your insight. I advanced the pump timing to around 10 degrees before top dead center and turned up the injection pump which resulted in much more power, enough that it completely removed all the friction material from factory clutch disk I had just installed so I had to upgrade, and a huge increase in fuel economy. .

i have to say, you did an incredible job putting that engine in there, it almost looks like it belongs there

This may be counter to the direction you are going but, why not decrease the intake Temps through a hood scoop leave the fuel alone and fix the govenor to not pull fuel below 4000 rpm. Then start adding fuel. Love your series. Thank you for feeding our inner backyard engineer. Lol

I would pin the wastegate closed on the next test because your not going to over speed the compressor because you don't have enough fuel to do so. Keep up the good work its fun to watch one of the slowest cars on KZfaq

that renault fix at the end was pretty good!

That thing deserves a hood scoop.

You are killing it with this series! Being in the diesel world myself " Just with an engine with nearly 6000cc's more lol" could I suggest looking into a water/meth injection system to keep the egts at bay? Also what my brother did with his diesel that I thought might be interesting on a smaller scale is propane/natural gas injection.

Nice repair on the Renault! Back in the 70s I used to pop out dents in my Fiat 600 by slapping the panel on the back with my bare hand. Not exactly thick steel.

I’ve never been so invested in someone else’s very slow beater 😂 I love it. Makes me want to find an 1123 for my neon.

My only complaint would be, that the 700cc should be making a lot more power out of the box. If you look at a 4 cyl 1.4l turbo diesel car engine, they make 150hp, so you'd think that an engine like this should max out at 70-75hp. But this one barely makes half the power. There's got to be some other reason why. More than likely, the engine is tuned (ported) to provide low rpm torque, and with a low compression ratio from the factory (as these engines are made to run 24/7 for years on end, and prefer reliability). For a car, you can increase compression, meaning lower longevity for higher performance. If not, increase the boost, which has a similar effect. Exhaust temps should never hit 1k F on this engine. It might not get enough cooling. Most road worthy diesel cars are required to run DEF fluid next to the ULSD fuel. If this engine has a way to add DEF, it would cool exhaust temps. You don't even need to run DEF (Urea). You can very easily just inject distilled water in the air intake, which adds torque, decreases exhaust temps, and somewhat protects the environment (better than with no DEF fluid).

Well, it's race-worthy for a 2CV6 now, just need to find one and take it to the drag strip... :P

Make a hood scoop over that hole in the hood. My guess it will keep things cooler if only slightly. Love the videos. Thanks.

Love this project! I think the next big thing would be hybrid setup... add a couple (cheapish batteries that can unload huge power fast, but low AH) and a electric motor (that also can unload a lot of power lets say 200 kw) and make some thingy (with a button :-) so that you can use it for 10s just accelerate to 60 MPH and then use the kubota for the cruise. Siphon some (could be a cheapish solar charger maybe) power of the generator back to the smallish batteries so in 2-3h :-) you could use the electric again for accelerations :-) Just did some rough calculations... 🙂 200 AH 12v battery for 10s if you can unload everything though is about 1 228 KW in 10s (or 1646 HP). So I think you can get 200 HP easily for 10s with 200 AH battery (or many smaller in parallel) then ofc get a good controller/frequency converter and a engine to match... Homebuilt, cheap hybrid that is fast and really great fuel economy :-) or maybe just get the new Prius :-)

Projects we have completed demonstrate what we know - future projects decide what we will learn.

Excellent video all around! Clear explanation of how the shims work to increase the advance; thorough details of the speed, time, and fuel economy; and fun demos of the mechanical side including removing the injector pump and fixing the dented rear end. I got a good laugh out of using the Saturn as a fixed point for the winch - it's a car of multiple talents!

It would be interesting to see the exhaust if any smoke is present. A little and I mean little smoke, a very light haze would be O K. Smoke relates directly to exhaust temps. Set up your camera to the rear for a test run, just to see.

I just been binged watched all your series on the diesel Kubota. I must say it was very entertaining and I learned quite a bit... this coming from somebody who drives a C-15 CAT powered Petbilt with 700+ turbo diesel HP @ 55lb boost.

The Cummins NTC-855 engine can be tweaked very significantly by altering the injector timing. Yes its bad nor NOx, but it really wakes them up. There was a version called the NTA-475 made by Cummins which had variable timing on the injectors......problem was they used a design of mechanism that had a bad tendency to seize up and cause problems.......but when they were working properly, they went 'hard' in heavy trucks. 12psi of boost is way off where it needs to be............20psi at least. Dont worry too much about the durability issue...........that engine is meant to do 30,000 hours as a fridge compressor engine........and its not being lugged full throttle for extended periods of time. You only need piston oilers when a turbo diesel is going to do high load factors.

Idk why, but I love this show and project.

My man, the editing in this video is the best I've seen from your team. Bravo.

Little anecdote on the fuel economy increase. I have a turbodiesel Jetta, and most people report increased fuel economy after doing turbo and injector upgrades. This seemed backwards from what I thought would happen so I did some digging trying to figure it out. It seems the common theory is that by making more power, you spend less time accelerating, and that is when you consume the most fuel. Seems logical to me but definitely counterintuitive to what I've always thought.

Good job on the repair of the Renault. Can't wait to see this project as well as the insight project.

Best thing to wake up to every Sunday

This is such a fun experiment. Getting to see how all the engine parameters work in the real world.

I think you'll find more consistent boost by changing the spring instead of tightening the arm. Great video!

On the dusty roads of Kansas Where the winds howl and the sun blazes A lone driver Jimbo races towards the night With his turbocharged Saturn, he's ready to ignite In the cantina, where the engines roar Jimbo finds a place to even the score With his foot on the pedal, and his eyes on the prize He'll ride to the limit, until the sunrise In a world where speed is the only rule Jimbo's the king, the ultimate fuel With his heart full of fire, and his soul in the wind He'll never give up, he'll never give in

Makes wonder how that li'l Kubota setup would do in my Samurai? It's used mostly for snowplow work in the winter and farm chores in the summer, along with the occasional trail ride/hunting trip.

Very cool love watching the series now imagine putting that Kabota engine in a jeep CJ I’ve seen people on KZfaq put those in the old army jeeps. That’s what I want to do. Pretty cool very expensive though.

I’m gonna give you the recipe for max safe power for your setup. First step is to completely stop the wastegate from opening and turn fueling up a lot or as much as you can go. At this point you can melt that motor straight into the ground if your stupid. Drive it and slowly lay into the throttle. What your looking to get out of this test is the maximum boost number. You will see at some point boost will no longer rise with throttle input but egt’s will keep climbing. At this point you need to tune your wastegate. To accomplish this you want to find where the turbo will make the peak boost with the wastegate opening at that point. I normally back off the boost till I see 1 psi below max and then adjust it back to max boost. Now you adjust overall fueling. When in boost and full throttle you should not have egt’s higher than 1150 if you want to be completely safe. You can go to 1250 and probably be ok but I would just stick with 1150. Biggest issue you have is that your injection pump isn’t setup for boost reference. I’d bet you max out that turbo before you run out of fuel.

19:05 you just answered a question I had but forgot to ask...those little truck/trailer/ATV tail lights from the jungle website or the bay of E's almost don't look bad at all on there. I think they would definitely look at home on an older Datsun pickup tucked under the tailgate edge, too.

Cant wait for the diesel honda. Great stuff you do here at the office

I thought you were pretty clear why you increased the boost without fuel last episode. That's why I like the channel. You're very thorough.

That body work, top knotch!

Can hardly wait for every episode😊

I know you started with an Insight - and I hope this drivetrain finds its way back into an Insight so I can see it's potential for reaching 100mpg fulfilled ...

Hey Jimbo... *GET YOUR ASS TO MARS!!*

You can absolutely discuss the 76 mph thing. Because, it's obvious that your driving on a closed course, In Mexico..😉🍻🍻

Water injection and then water meth injection needed. Super easy to do and setup. Pump check valve injector and tank is all you need.

Never let the fear of striking out keep you from playing the game. -Babe Ruth

I wholeheartedly agree with all the positive comments: great work!

A cosmetic idea if you ever need to put on a scoop on the intercooler. Attach the scoop to the intercooler, like the big 3 did to the intake. It would give it a shaker hood.

I think fitting a fan under the intercooler, along with some simple ducting to blow air from below, up out the scoop would both pass more air over the intercooler, but also keep the engine bay temps, meaning cooler air temps for the turbo. Even if only slightly.

The best way to reduce the exhaust temperature is to put larger diameter exhaust pipes and remove the muffler system to reduce back pressure, the higher the exhaust pressure, the higher the temperature will be, and the larger the pipe, the lower the pressure, and thus temperature. Also have you considered an exhaust cooler system? A simple copper pipe coiled around the exhaust manifold and filled with coolant that is sent to a separate radiator can reduce exhaust temp significantly

Good editing on the videos. I tried to make some KZfaq videos myself so I know how much time all the animations take to I appreciate that a lot