Basically a race car now.

I think it's worth stating, lower intake temps will primarily serve to lower egts less than make more power. The intercooler probably gives you more room to increase the fueling before egts get crazy.

Your microphone quality is impressive

The diesel Saturn is almost matching East German levels of common man performance. I'm intrigued

Since your temp gauge has another spot, you may want to run another thermocouple back to the rear brakes so you can monitor the emergency brake temps. Good work on everything!

I like how you call out the viewers. There are wayyyyyy to many "experts" on you tube comments.

ive watched Rob Dahm build a 2000hp AWD 4 rotor rx7 and i can honestly say im more excited when i see another upload of this little red saturn every week. keep up the good work! you're doing amazing stuff out there!

You should be able to add a smidge more fuel with the lower intake temps. Colder air is more dense than hot air and all of that.

Aging Wheels is a great channel. Robert does some really interesting things, and his sense of humor is awesome. This has been a very interesting project, keep the videos coming. 👍

It's actually very impressive to see how much that mini refridgerator unit diesel engine survive so much load and modification. Clearly the Japanese make good engines. Jimbo, love the content. Good stuff. This is what the internet was meant for, I think.

The WRX hood scoop has been shown to flow backwards at higher speeds. Generally, your engine bay ends up being a high pressure area. A forwards facing scoop means you don't have much delta in pressure across the top mounted intercooler. Now, your front bumper block will change the flow/pressure characteristics but the important thing is to maximize the pressure and temp deltas across your IC. Like many of the high performance WRX builds which kept their TMIC you likely want to go for a reverse scoop setup. - Additionally, the lack of a belly pan will alter your engine bay airflow and pressure characteristics. Typically, in a negative way. Plus there's additional aero drag from the aerodynamically dirtiest part of the car (the underside). Likely an easy way to make multiple improvements. The guides on ecomodder can be helpful. Same for tuft-testing the airflow around that TMIC which is a great way of showing your airflow patterns at various speeds. --- Keep up the very interesting work!

You should for sure add a small WRX style hood scoop, it might not be your "style," but I think it would look cool and increase the efficiency of that. You could also add some little pieces of plastic inside to guide the air directly atop the intercooler. I do recommend adding a little more fuel now, I think that engine can handle it. Then again, I feel like swapping that engine into the insight would be ideal at this point.

Wow... that Renault looks to be in amazing condition 😮

Can't get enough of this series

Did not expect a Renault 10 to pop up at the end!

Some more test ideas. Attach some streamers around the hood hole/intercooler, I wager air is coming out not into the hole/intercooler. That tube and fin intercooler needs airflow across the core. A bar and plate style core would be better suited for that style as its much better at passively rejecting heat since your hood is vented allowing air out. Plus less pressure drop across the core with bar and plate. (not sure where your measuring boost from). in order for a hood sccop to actually work and create a high pressure area to promote flow. the underhood area would need to be low pressure so blocking the grill may be benefitial in that scenario. Happy testing!

Oh boy!!! I got my coffee fixed and now going to sit on the back porch while everybody is asleep and get to watch another episode of the coolest project on youtube! Hopefully you will continue to make the neccesary supporting mods and keep bumping the power up Gale Banks style! Lets see what you can get out of that little Kubota!! Thanks Jimbo!

Like many others have said, cooler intake doesn't mean more power until you tune for it. Otherwise it's like putting high octane in my knock sensorless car - Unless I optimise the timing, all I'm doing is burning more money per mile.

The reason for top mount intercooler is to avoid rocks from making holes in intercooler.

I'm still amazed at how you can finish (and we all know what the word finish implies for a project car) one project and then immediately jump onto another

I'm normally not one to get bothered (anymore) by a missing screw like at 4:55, but it did make my day brighter

We stopped using the parking brake 30 years ago, because when you live in the snow, if you set your parking brake, there’s a good chance that the cable will freeze, then you have to climb under the car with a hairdryer in order to get it unfrozen!

Oh come on, i was expecting harp sounds when you touched the intercooler 😂

All the hugs! So here for this! We have all needed more hugs and love during these times, and it has just really proven to bring our family closer together. Our son says he is the cheese in the sandwich, and that my husband and I are the bread! If someone is having a tough time, inevitably someone says - sandwich time! - and we all get together for a hug.

Something I learned as I am messing with my first diesel, fuel makes more power- and that's the only thing that makes more power. More boost or colder Temps only reduce smoke, or let you add more fuel. Add fuel till it smokes, add air till it stops, repeat until something blows up.

You should do an end of season episode where you have someone interview all the neighbors in the area and see what they think of the crazy guy hotrodding a saturn and a honda insight. That would be interesting. On another note, i truly enjoy all of the engineering and experimentation you do.

Fascinating engineering. The epic struggle of man vs. technology!

Really enjoy the Saturn Diesel Videos. I hope the car does not end up scrapped. It would make someone a great little commuter car. Looking forward to the next adjustments. Thanks for the videos.

Another way to optimize the hole in the hood for the intercooler is to extend the vertical cuts and bend the leading edge of the hole down into the engine bay. The boundary layer of the air on the hood will better follow that path and get more air into the engine bay and over the intercooler. As you said, a scoop is better but until then this is a simple way to improve the hole as-is. Right now most the air is flying over half the opening of the hole and missing the intercooler, the benefit you are seeing is just allowing the surrounding cooler air into the lower pressure area in the hood.

Hey Jimbo, enjoying your toying around as usual! Any ideas on how to advance the timing on that injection pump? I know literally nothing about that engine or pump beyond what you'd already stated regarding its use... Feel like if you could get the injection advanced, coupled with the turbo and cooler induction, you should see some pretty big gains out of that little guy!

To your credit this is probably the fastest diesel swapped Saturn on the internet and quite possibly the only diesel swapped Saturn on the internet. I think a call to Guinness World Records needs to be made.

you knocked off 3 seconds to 60 with 3 more pounds of boost - Not to shabby 🙂

YOU NEED TO START FLAT FOOT SHIFTING THAT THING! DRIVE ANGRY!! LOL

CONGRATULATIONS ROBOT CANTINA OVER 100 VIDEOS AND COUNTING! your fan club is growing and we are so proud to be subscribers to this great channel, JIMBO!

Man, I love lil funky unique swaps; you don't need a bunch of power to how fun 👌

Once the Saturn can match the Trabant, you should see if you can convince him to take a break and meet you at a drag strip.

Definitely add a scoop. Mount it "backwards" as a previous comment suggested. Make a seal from the hood to the top of the intercooler. Air will then be pulled through the intercooler from under it. Enjoy the lower temps. Add more fuel and boost thus rapidly decreasing the time it will take to reach full destruction!!

Can we all appreciate the 10psi 0-60 test and the fact that that little diesel sounded more like a mini powerstroke... spooling like a turbodiesel should!

congrats on the 31.97! Thats a big step up from you started. Now that the temp is under control, the next logical step is to increase the length of the fuel rack.

I did not expect the Aging Wheels crossover today, but here we are!!

Silence everybody, Robot Cantina is on. 😎

I love that you mention Subaru using top mount intercoolers in their WRX and then show a Forester. Subaru still uses top mounts in their new cars, they just have a duct from the grill to the TMIC.

I would have thought the intercooler would have made a big difference since manufacturers that save money where ever they can uses them. Maybe you have a point-warm days with high under hood temps might show a benefit. Especially with a couple of catalytic converters hanging on the exhaust manifolds heating the sheet out of the engine compartment. Thanks for sharing the video sir!

It looks to me that one of those plastic newspaper boxes that attach to your mailbox would be about the ideal size for a hood scoop lol.

There is a risk that your intercooler becomes "interwarmer", as hi pressure air from your front dam enters engine compartment, and escapes through scoop. OEM's usually mount intercooler in sandwich with radiator. IC first, then radiator. In this case, I assume that you can do the same and solve two problems: IC will be getting cold air first and radiator will have somewhat less air flow (which would take care of thermostat not being able to regulate). Then pile up more fuel and you will be getting places! P.S. That rear bearing is annoying...we want to hear the turbo! :D Great content!

Well Jimbo I'm sure glad you pointed out that the temp probe wire was being installed the lazy man's way, after you were done I thought what Derek Bieri from Vice Grip Garage says - "It looks factory..." Interesting results with the intercooler!

Toyota's KD series diesel engines used in a variety of their cars including the Hilux uses this intercooler setup, it is mounted on top of the engine with a small scoop on the bonnet.

The intercooler will give you more overhead on how much fuel you can put in it. It should help you keep the engine from melting down from extreme egts

I'm loving the turbo diesel goodness. With the lower intake temperature (and presumably lower EGT), you should be able to add more fuel for Moe Powah! 😛

I reckon a mailbox mounted to the hood would make a great looking hood scoop. Also, anyone not subscribed to aging wheels needs to do some serious evaluation of their life choices.

Great to see you referencing aging wheels! I love his channel too! Yours and his are 2 channels I've watched pretty much the entire back catalogue!

My OCD thanks you for adding that screw.

I love the intense sound effect "BIG BLOCK" bit

I think the white car in the very end is a Renault... The clue I got was the 3 lug wheels..... the " Le Car " had those. I think ( without googling ) that is a Dauphine...... maybe... Cool vid

You have so much more discipline than I do with my projects. I would already have wired the waste gate shut, cranked up the fuel and as they say here in western NC “let’r eat”😂😂

Gotta get that boost up in the 15 - 20 PSI range, and increase fuel quantity to keep stoichiometric ratios roughly in the right ball park.. Beyond that - well, nitro injection, if you're crazy. Which this channel sometimes is. Good luck!

Just what I needed after my coffee thanks for sharing

Fun fact: regardless of aspiration, diesel engines experience the most efficient combustion with the intake manifold temperatures between 120 and 150°F.

A rear mounted engine 60s Renault… Oh boy, can’t wait for it!! 🇫🇷

The Robot Cantina-Aging Wheels crossover episode that I've been hoping for!

Aligning the front end will lower rolling resistance as well. Under 100hp cars you will notice a difference when you align it!

Robins car is lighter no fair, great job buddy, love this project

The music is back 😊 glad to see this still in action

The only bad hood scoop is a faux hood scoop. Esthetics are a different and subjective discussion all together:)

Honestly one of the best series on KZfaq.

You should also try a reverse hood scoop (hole facing backwards) If the hole in the bumper creates higher than ambient pressure in the engine bay (which is hard to say, aero is fickle), a scoop will only fight the hole in the bumper decreasing air flow through the intercooler. If the scoop is reversed however, it creates a low pressure area in front of the windscreen, pulling air through the intercooler. Again, this only works if the bumper hole is indeed increasing the air pressure.

That old phone works out the tach better than new junk. Crazy

Oh my gosh, one time I had trouble getting my Trabant up to speed, I left the parking brake on! Drove it about 36 miles!

Now it's literally a STI damnnn! a Saturn Topmounted Intercooler 😮😮😮😮

More boost next time please! Looking forward to more episodes on this plucky Saturn!

On the 7.3 diesel the cold side of the intake from the cooler is wrapped with insulation tape from the factory to not reabsorb heat from under the hood

Sunday morning couldn't get any better.

I love that insignificant results are also shared here. Real science. The screw made me chuckle.

You lose one race, and defect to the victor's team? 😊 A lesser fan would flounce, but I'll stick around🏆 Keep up the hard work! Enjoying the variety of quabity content!

its nice to see how little power you really need to counter coefficient drag unlike what car sellers would have you believe

Love this series! It will be interesting to see how far this engine will go. I think, being a diesel, it will take quite a bit. Hopefully it can take around 15psi, doubling it's naturally aspirated output. At this power level, intercooling just doesn't make a noteable power difference, but as the boost increases it will play more and more of a role. A general rule of thumb I found is ~1% more power for every 10 degrees F. More than anything, the intercooler will lower exhaust temps. Maybe this will allow you to get more aggresive with fueling. Gasoline engines can respond much better to lower temps because of increased ignition timing with lower IAT when octane limited. Would be interesting to have a instant reading on intake temps. I think it would tell a better story of how the intercooler is doing. Edit: I see the the lower EGT and added fueling idea has been mentioned a few times!

Intercoolers really only make a huge difference when you're making big boost. Compressed air creates it's own heat by virtue of the compression - that's what they really help with. Removing any heat added by the turbo itself is only going to be an issue when you've driven the car long enough for the cold side to be heat soaked by the hot side of the compressor - so on short test drives it's nearly a moot point. I'm not saying that the turbo doesn't help with temps either way - just the temps won't be different enough to noticeably help power until your dealing with higher boost numbers.

i like how you can hear it build boost

Mitch Hedberg pointed out that the "emergency brake" usually ends up as an "emergency make-the-car-smell-funny lever". :D

With time, effort and some money *you too* could have a car almost as fast as a Trabant!

The cross-over I never knew I needed - until NOW!!!! : )

Up the boost and fuel with the intercooler and target 18:1 AFR as close to 1450 EGT as you can. POWA

Oh wow! A Renault 10! Can't wait to see what Jimbo has planned for it!

Love the hungarian plate on the trabant, never thought i'll see some old easter europe stuff mentioned here. Keep up!

You and aging wheels are two of my FAVS!!!! Love all the content, especially the insight, since I own a swapped turbo one!

I run 12psi on my originally non turbo Kubota tractor. It's a tractor so it can go quite a while holding 12psi. It does have an intercooler.

Here for 30 psi, a big turbo, nozzles, sleeved, headstuds, springs and retainers 👀 I'm here for the inevitable fastest diesel swapped saturn ❤

Keep in mind the trabant has a gasoline 2 stroke engine, giving it two advantages. Gas burns faster than diesel, and twice as many power strokes for a given size engine yields more power to weight

Love the WRX STI style top mounted intercooler. all u need now is anti-lag (on a diesel?) and water injection.

This is what I love to watch on utube. A guy who is doing cool things and documenting what he does.

Funny video, as always. Science! But the Renault 10 Major at the end of the video was a big surprise. I’m looking forward to what will happen next… See you!

Your show is the most anticipated show I wait for👍😸

I get genuinely excited when a new video from you comes out!😁

I just love your channel! I look forward to it every week. I bet I could hang out with you guys in that garage all day!

Freaking awesome! Love seeing the youtubers I follow working together! ♥

Keep up the good work! This channel is as entertaining as Top Gear, but much more informative.

These videos are ridiculous. And I love every moment. Good job man.

Nice! I can't wait to see the gas mileage!

I’ve been looking forward to this video! Very nice as usual.

My girlfriend has a Seat Ibiza 2018 with a 3-cylinder 1.0 liter petrol engine with turbo. Im supprised how peppy it feels with only 95hp and 1250kg