Does a BIGGER Radiator Actually Do Anything?

2020 23 سپتامبر
1 296 495 بازدید

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Last time we took the Miata to the track we ran into so many cooling issues! So we decided it was time to get rid of the old crappy radiator and old cooling bits in order to stop the overheating problems! We went with all the best bits from Flyin’ Miata, BUT upgrading your radiator with the fanciest thing out there might not be the best move for YOUR car. Today we are revamping the entire cooling system on the Miata and talking how to effectively keep your car cool!
Thanks to Flyin’ Miata for sending us all these sick cooling parts!
Fan and Shroud
ss1.us/a/4yZLNTSv
Coolant Reroute
ss1.us/a/1voYVPw1
Radiator
hss1.us/a/cfZuzmGU

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نظر
  • Lol I use the same coolant

    Isaac SellersIsaac Sellersپیش 22 ساعت
  • The radiator and double fans look like my computer’s radiator with my corsair fans. lol (yes- I know it is the same, shut up).

    Isaac SellersIsaac Sellersپیش 23 ساعت
  • did he say “ i’m a STONED cold business man” 🤣🤣🤣🤣🤣

    Alexander AndazolaAlexander Andazolaپیش 4 روز
  • Doesn't it still overheat now, after the turbo??

    erikbarrett85erikbarrett85پیش 4 روز
  • You need Max Headroom

    erikbarrett85erikbarrett85پیش 4 روز
  • Turn the heat on if it starts to overheat

    Walter Brooklyn t guyWalter Brooklyn t guyپیش 10 روز
  • Do you need to add a diode into the system to stop the all aluminum rad from corroding?

    Nate O'NeillNate O'Neillپیش 13 روز
  • "Asian Vehicle" coolant haha! 😂😂

    Riley VallanceRiley Vallanceپیش 16 روز
  • yeah im sorry, but even on a race track, the fact that ur stock miata was overheating has 0 to do with stock cooling not being enough. it was just worn out. You can take pretty much any stock car with stock cooling that isn't worn out, flog it all day on a racetrack and it wont overheat. Only time upgraded cooling is required is if internals been changed (as in bored out) or its been boosted from stock Ive flogged my k24 accord euro on race track and gauge temp doesn't go past the middle, same as if im just bumming around town. Dont get me wrong, if ur cooling system is worn out, makes sense to upgrade, especially if ur gunna mod it in future, but there will be literally 0 difference upgrading the stock cooling system on a stock engine.

    Steven CappSteven Cappپیش 18 روز
  • getting paid to soup up your miata. winning

    Steven CappSteven Cappپیش 18 روز
  • this isnt part of the money pit playlist btw fyi donut team!

    Raphael RapiRaphael Rapiپیش 18 روز
  • Best intro in the game!

    john smittyjohn smittyپیش 19 روز
  • Gawt Damnit Jobe! You make everything look soooooooo easy. You're the Joe Montana of mods. Your old stuff for ecs tuning is gold too. Glad you went your own way. Keep it real

    James JonesJames Jonesپیش 20 روز
  • The only adverts I’ll ever be hooked into

    _bstr_ct_bstr_ctپیش 20 روز
  • Im tryna get that donut skateboard against the garage wall 👀

    Zach AddamsZach Addamsپیش 21 روز
  • This video is missing on the money pit playlist

    Brandon NieuwenkampBrandon Nieuwenkampپیش 24 روز
  • 9:54 scares me a bit,cant tell if hes using metal or plastic.

    AzuAzuپیش 25 روز
  • Is it me or does James look a bit less fluffy 🤔

    Alex AndesAlex Andesپیش 26 روز
  • for some reason this episode isnt in the money pit playlist

    Badusername2000Badusername2000پیش 27 روز
  • Just a quick question/hint: is this vid intentionally not in the Money Pit playlist? ;)

    David PraesentDavid Praesentپیش 28 روز
  • Zach: "Don't use just any kind of water" My father that just poured 2 buckets of water from a nearby stream in the radiator of my grandpa's 1967 Toyota Hillux: That's a lot of damage

    Anastasis ParastatidisAnastasis Parastatidisپیش ماه
  • "back to the show" *ad pops up*

    IsaiahIsaiahپیش ماه
  • Mature men get hyped about cooling upgrades.

    Royalty_31 VorzRoyalty_31 Vorzپیش ماه
  • My employer bought Holden (Chevy) Colorado’s for our work utes (trucks) in Australia. They overheat in moderate weather without any towing involved... and then the stupid big brother system beeps at us “engine parameters exceeded”

    Thomas AThomas Aپیش ماه
  • If you drill a hole in the thermostat flange (1/8" maybe) it helps purge the air from the water system when filling it and has almost no effect on coolant flow. It worked in my '78 Nova 305, anyway. EDIT: Bleeder valve? So fancy. So Japanese.

    Lawrence SchumanLawrence Schumanپیش ماه
  • Do you guys sell the donut skateboard I really want one

    Ayden HernandezAyden Hernandezپیش ماه
  • "I know a cooling system doesn't seem that cool" It does... that's... what a cooling system does... but really though, cooling systems are cool. they stop prevent overheating and damage. working car is cooler than not working car.

    William MalloryWilliam Malloryپیش ماه
  • For some reason this video isn't in the money pit playlist and i almost missed it. I only noticed it because there was a different radiator in the beginning of the intake video and in the end of the head gasket video there was a comment about the radiator. So it made me stop and look before i went to much further. There is also a weird thing that happens with the audio in the first half of the video. The audio keeps oscillating back and forth.

    Michael StroupMichael Stroupپیش ماه
  • Dropped an aluminum rad in my 98 accord after blowing the top and bottom seals of a new stock radiator (240k miles and head gasket is starting to go) and haven't had any issues since. Worth the price even at double the cost of a plastic rad

    HeraldAngel 777HeraldAngel 777پیش ماه
  • Heat transfer in this case is performed through a forced convective mechanism. To observe why the cross flow radiator is better in this case we will need to understand the variables relationships. From Newton's law of cooling we observe that the rate of heat transfer, q, is given by: q=hA(T_initial-T_final). Where, h is the heat transfer coefficient and A is the surface area of the tube. For this purpose we will not focus too much on the temperature differential as we will want to focus on why the bigger, crossflow radiator performs better and the temperature differential can assumed to be the same in both cases for analysis purposes. To find h, we find this from the fluid properties and is related by the Nusselt number, Nu, and for a cylinder. Where Nu=(hD)/k where D is the diameter of the tube and k is the thermal conductivity. Since by increasing the length of the tubes, we effectively decrease the diameter. When we rearrange for h, h=(Nu*k)/D, we observe that h will increase when D decreases. To observe the effect of velocity we look at the Churchill Bernstein equation for a cylinder in crossflow (this equation is very long, just google it), however we observe that the Reynolds number is the numerator, and therefore we will increase Nu with an increasing Reynolds number. We observe that the reynolds number for a cylinder is given by: Re=(rho*v*D)/(dynamic viscosity). where, rho = density, v= velocity, D=diameter. Therefore as we increase the velocity of the fluid, we notice that the Nusselt number increases proportionally to this. Looking back to the equation for the heat transfer coefficient, it also increases with an increasing Nusselt number, therefore the heat transfer coefficient is proportional to a velocity increase. Lastly, we observe that as we decrease the diameter of the tubes, we notice from common sense we can fit more tubes into our constrained radiator area. Therefore, we are increasing the surface area of heat transfer. And when we observe that as A increases, q increases from Newton's law of cooling. Therefore, we increase the heat transfer rate further. In summary, as we increase the length of the tubes we effectively decrease the diameter. Also, as we decrease the the diameter of the tubes, we can fit more in our constrained area of the radiator, which increase the surface area of heat transfer and thereby the heat transfer rate. Lastly, when we increase the fan size, we increase the velocity of the air and increase the heat transfer rate. Your comment about gravity and that the fluid remains longer in the tubes for heat transfer is simply incorrect. As stated previously an increased velocity is better for heat transfer, and in fact gravity is negligible in analysis and the pressure of the coolant system and the velocity of air from the fan dominates our heat transfer. It is more so to do with that from left to right (looking at the car) we can easily increase the length of our tubes easier than up and down. And for the reasons mentioned before is better for heat transfer rate. Source: I am a Mechanical Engineer

    Jaden RigginsJaden Rigginsپیش ماه
  • My 07 Pacifica had a hole or something in its radiator and that radiator was only like 5 years old, parts for that thing are difficult to find and if you can find them, they’re expensive

    Packerman BruhmomentoPackerman Bruhmomentoپیش ماه
  • You kinda look like Paul Walker.

    David MerrillDavid Merrillپیش ماه
  • This channel has the most stupid thumbnails, these guys think they are good looking, bunch of Narcissists, ugly people usually don’t like to be on camera

    1138RR1138RRپیش ماه
  • This video is missing from the "MONEYPIT - Miata Build-Along Show" playlist on your channel.

    Dakota RobbinsDakota Robbinsپیش ماه
  • Ayo when you throwing the lift kit on the gx

    Joshua Newton-KeyJoshua Newton-Keyپیش ماه
  • You should have installed a truck radiator for shits and gigles

    Danny DevitoDanny Devitoپیش ماه
  • Why wasnt this in the miata playlist!?!?!?!?! ;((((((((((((((((((((((((((((((((((((((((((((((((((

    DavidDavidپیش ماه
  • Should slower flow though radiators not slow cooling since the average temp difference between air and cooling fluid would be lower.

    Sam GraingerSam Graingerپیش ماه
    • @Sam Grainger Absolutely. See below. Heat transfer in this case is performed through a forced convective mechanism. To observe why the cross flow radiator is better in this case we will need to understand the variables relationships. From Newton's law of cooling we observe that the rate of heat transfer, q, is given by: q=hA(T_initial-T_final). Where, h is the heat transfer coefficient and A is the surface area of the tube. For this purpose we will not focus too much on the temperature differential as we will want to focus on why the bigger, crossflow radiator performs better and the temperature differential can assumed to be the same in both cases for analysis purposes. To find h, we find this from the fluid properties and is related by the Nusselt number, Nu, and for a cylinder. Where Nu=(hD)/k where D is the diameter of the tube and k is the thermal conductivity. Since by increasing the length of the tubes, we effectively decrease the diameter. When we rearrange for h, h=(Nu*k)/D, we observe that h will increase when D decreases. To observe the effect of velocity we look at the Churchill Bernstein equation for a cylinder in crossflow (this equation is very long, just google it), however we observe that the Reynolds number is the numerator, and therefore we will increase Nu with an increasing Reynolds number. We observe that the reynolds number for a cylinder is given by: Re=(rho*v*D)/(dynamic viscosity). where, rho = density, v= velocity, D=diameter. Therefore as we increase the velocity of the fluid, we notice that the Nusselt number increases proportionally to this. Looking back to the equation for the heat transfer coefficient, it also increases with an increasing Nusselt number, therefore the heat transfer coefficient is proportional to a velocity increase. Lastly, we observe that as we decrease the diameter of the tubes, we notice from common sense we can fit more tubes into our constrained radiator area. Therefore, we are increasing the surface area of heat transfer. And when we observe that as A increases, q increases from Newton's law of cooling. Therefore, we increase the heat transfer rate further. In summary, as we increase the length of the tubes we effectively decrease the diameter. Also, as we decrease the diameter of the tubes, we can fit more in our constrained area of the radiator, which increase the surface area of heat transfer and thereby the heat transfer rate. Lastly, when we increase the fan size, we increase the velocity of the air and increase the heat transfer rate. Your comment about gravity and that the fluid remains longer in the tubes for heat transfer is simply incorrect. As stated previously an increased velocity is better for heat transfer, and in fact gravity is negligible in analysis and the pressure of the coolant system and the velocity of air from the fan dominates our heat transfer. It is more so to do with that from left to right (looking at the car) we can easily increase the length of our tubes easier than up and down. And for the reasons mentioned before is better for heat transfer rate. Source: I am a Mechanical Engineer

      Jaden RigginsJaden Rigginsپیش ماه
    • @Jaden Riggins any chance of a cheeky copy paste? Thar be many comments

      Sam GraingerSam Graingerپیش ماه
    • See my recent comment for a technical answer. You are correct, a decreased velocity of fluids will decrease the rate of heat transfer.

      Jaden RigginsJaden Rigginsپیش ماه
  • How did you route the white wire to the fuse box?

    Jon BuelowJon Buelowپیش ماه
  • Wish I knew how to do any of this stuff :/

    MRQZ MediaMRQZ Mediaپیش ماه
  • Me be like: Holy sh*t running at 210 degrees?!, oh yeah fahrenheit

    BjörnBjörnپیش ماه
  • Donut: "Don't ever use a heat gun, use a torch."

    Vinh NguyễnVinh Nguyễnپیش ماه
  • With the new thermostat location and the temp sensor. Aren't you just measuring the temp of the coolant that is coming from the rad? AM I wrong? I'm probably wrong.

    Juan HernandezJuan Hernandezپیش 2 ماه
  • This reminds me of when our window AC unit kept freezing over so I spent 4 hours cleaning and straightening the fins on the damn thing.

    Andrew SokolowskiAndrew Sokolowskiپیش 2 ماه
  • I love your enthusiasm while starting a coolant reroute lol

    Zach NunZach Nunپیش 2 ماه
  • You see rust but don't do a flush or new hoses etc? Confucius says...."I'm confiushed!"

    Hanks ValeraHanks Valeraپیش 2 ماه
  • id love to see the modelling on those flaps. I bet its indistinguishable without them as the fan when on will also open them.

    BenBenپیش 2 ماه
  • 2 part comment. 1) I’m sure someone else has said it in the other 3000 comments but this video doesn’t show up in the money pit playlist. 2) I freakin love donut media

    Bry ThomasBry Thomasپیش 2 ماه
  • Turbo is a great oil woamer that most likely requires an oil cooler, at least if you track it :)

    Dima YakubovDima Yakubovپیش 2 ماه
  • That wiring made me cringe. The moment he was running his hot to the alternator, I wanted to cry.

    Samuel BrewerSamuel Brewerپیش 2 ماه
  • What about rain water dude

    Christopher MillerChristopher Millerپیش 2 ماه
  • That r6 though

    Sanjay AntonitoSanjay Antonitoپیش 2 ماه
  • How long untill Amazon buys the whole Donut Media thing? This show is embarrassingly better than any other car show out there.

    EshetuEshetuپیش 2 ماه
  • Yea I'm not into Miatas but this show is hella dope!!

    Joseph WelchJoseph Welchپیش 2 ماه
  • Is there any way I could get the donut logo bouncing around download so I can use it for my infotainment system

    CodFishStranglerCodFishStranglerپیش 2 ماه
  • you guys are awesome man! i would say between you and James and Science Garage thats about 80% of what I watch these days! thank you for your awesome content!

    Shane MoutonShane Moutonپیش 2 ماه
  • WELCOME TO NEW PIMP MY RIDE 2!!!!

    X Æ A-XiiX Æ A-Xiiپیش 2 ماه
  • Asian vehicle” on the antifreeze bottle 🤦🏻‍♂️

    Josh NichterJosh Nichterپیش 2 ماه
  • I putted snow into my cooler when i didnt have water with me, worked like a dream.

    MorreRacing TeamMorreRacing Teamپیش 2 ماه
  • I almost missed this episode because it isn't in the Money Pit playlist!

    Zakary MoningerZakary Moningerپیش 2 ماه
  • Ohhhh thank god! At the beginning I was shocked and sincerely kind a gross out that he was installing that radiator with all those bent fins, then he straighten those out and ohhhhh the relive.

    Moisés BolañosMoisés Bolañosپیش 2 ماه
  • lol @ Asian vehicles

    Allen WangAllen Wangپیش 2 ماه
  • Was that a Pentax Spotmatic I spotted on the counter?

    E O NE O Nپیش 2 ماه
  • "not one of the sexiest mods" well not beeing able to do a single lap is also not very sexy so imo a cooling upgrade is maximum sexy ^^

    Idella ParkIdella Parkپیش 2 ماه
  • We are waiting for the DiY "is a LS swap worth it" video.

    Idella ParkIdella Parkپیش 2 ماه
  • your neighbors got a prius 🤮

    Mark CrewsMark Crewsپیش 2 ماه
  • I'm still laughing this dude paid money for that joke oil cooler he put in his car , my rx-7 has a stock oil cooler four times the size.. and its not exactly amazing either

    ThreeDaysOfDanThreeDaysOfDanپیش 2 ماه
  • As a computer nerd, cooling systems are sexy as hell, cooling means overclocking, overclocking means more powah

    StormCloudStormCloudپیش 2 ماه
  • You should actually put a turbo in it

    Tyler RockefellerTyler Rockefellerپیش 2 ماه
  • Months. And still no turbo. When Zach, When? We need that boost

    mooglemoogleپیش 2 ماه
  • Jesus, you got a video between your ads

    XtremeV2XtremeV2پیش 2 ماه
  • Does your harnas do anything if you don't have a helmet tensioning cable to your head?

    heyouheyouپیش 2 ماه
  • Just say fuck it and drop a 2JZ/RB26 on it

    Pedro MoreiraPedro Moreiraپیش 2 ماه
  • Wheres your merch?!

    Alex SmithAlex Smithپیش 2 ماه
  • I was replacing my battery today on my nd1 launch edition just after watching this, and I noticed it had flaps in the rad shroud!

    Anton MarantoAnton Marantoپیش 2 ماه
  • Do a garage tour

    Jyotkanwal BhambraJyotkanwal Bhambraپیش 2 ماه
  • forgot to cycle the heater core

    Dee10Dee10پیش 2 ماه
  • “Don’t use tap water, just use distilled” gets flashbacks of filling my S10 up with a garden hose

    Will WagnerWill Wagnerپیش 2 ماه
    • Definitely not the best, especially if you want to really push your engine to its limits, but pretty much everyone I've helped with thermostats or radiator replacements uses regular garden hose water. If you have really heavy city or well water then probably more of a concern.

      Dylan -Dylan -پیش روز
    • Why did you copy the older comment above and give yourself a like?

      MonstertruckMonstertruckپیش 2 ماه
  • What if it was super chargered and turbo at the same time ‘ is that even done before

    Civic FanboysCivic Fanboysپیش 2 ماه
  • We are tired of the miata don't you have another ( more powerful ) car? you are like Scotty Kilmer Claiming the Toyota Celica is Far Superior in Engineering than any other car. Also you can not conclude things for all cars if the test is only done in one.

    Luis HernandezLuis Hernandezپیش 2 ماه
  • I wouldn't trust mixing that old GREEN coolant that was clearly still in the engine block, with that blue asian coolant you put in it. In my experience, bad things happen over time (like very pre-mature water pump failures). Those two coolants use different chemicals for corrosion protection, and a lot of times they create an acidic by product when you mix them, that can destroy parts of your cooling system (water pump, or even worst case cause a head gasket failure). IMO you should always FLUSH out your entire cooling system with water if you are changing the base coolant to a different product. You NEVER know how the different additives will react with one another, despite manufacturer claims of compatibility. There, now that's something you know too.

    KC H18KC H18پیش 2 ماه
  • Are you like The Deep? You have so many fins.

    Leston YearwoodLeston Yearwoodپیش 2 ماه
  • " new heater core hoses " -40c canadian winters 35 year hoses would like to know your location mr California Texas

    Nathaniel FeldmanNathaniel Feldmanپیش 2 ماه
  • Sure antifreeze helps with lubrication and corrosion but that isn't the main purpose. When mixed with water it changes freezing and boiling point. Water freezes at 32°F and boils around 212°F and you never want either boiling or frozen coolant. The higher the antifreeze ratio then it freezes at a lower temp and boils at a higher temp.

    James MancusoJames Mancusoپیش 2 ماه
  • All the tension in my body released when he said he was gonna straighten all the bent fins in the new radiator.

    megadestroyer454megadestroyer454پیش 3 ماه
  • In my place, people think you don't need thermostats since the country is already hot. When your car overheats, the first thing a mechanic would say is to remove the thermostat.

    Hans LidlwagenHans Lidlwagenپیش 3 ماه
  • Rust residue in your cooling system IS abnormal. It indicates corrosion which is from a lack of maintenance. Did you drain the block as well? You want as much new coolant as possible. Put some water wetter also. That will help the heat transfer. Good luck with your project.

    David CollisDavid Collisپیش 3 ماه
  • YOU GUYS MAKE GREAT VIDEOS

    KegstaKegstaپیش 3 ماه
  • 13:47 why you... y’all could’ve made the box hit the corner perfectly but noooooo 😡😂

    ChrisChrisپیش 3 ماه
  • I'm going to be so sad when the miata is full custom😓

    St0rmys Personal Account.St0rmys Personal Account.پیش 3 ماه
  • Do you ever find out what was causing the fuse to blow? What the bigger problem was?

    npbevonpbevoپیش 3 ماه
  • You look stupid without your beard 🤔. Kinda look a bit like Hitler 😂

    DG PUNISHERDG PUNISHERپیش 3 ماه
  • Lots can be said about radiator size but one misled is thinking more radiator rows equal greater cooling. In fact fin size is much better way. A two row radiator with 1" tubes is better than a 3/4 row that have 3/8"tubes

    Wesley MannWesley Mannپیش 3 ماه
  • "only use distilled water" meanwhile your local shop will 100% grab water from the fucking sink, because aint no business wasting money on distilled water when you are using antifreeze to begin with.

    GoblinPhreakGoblinPhreakپیش 3 ماه
  • I understand what your theory about using the shroud is but I thoroughly believe they will make absolutely no diference as there won't be enough wind force to push them thoroughly open and when at idle having them open would effect nothing

    Dane ShipwayDane Shipwayپیش 3 ماه
  • who the hell put a thermostat on a track car you have to remove that

    jackie chanjackie chanپیش 3 ماه
  • New Bodykit nxxt?

    0202پیش 3 ماه
  • Great informative video , today I learned something

    Mr JMr Jپیش 3 ماه
  • This Zach Jobe guy is pretty legit. I wonder how long these installs actually take him.

    jasrod2012jasrod2012پیش 3 ماه
  • I'm actually looking for a BIG radiator. For my liquid cooled computer.

    Erik SchieggErik Schieggپیش 3 ماه
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