Overheating? Tips to Make Your Car Run Cooler!

[@motoiq]

These are some of our tips for keeping the car cool.. What are yours?

[@CountryBoyShane]

I'm always in front so I never have an issue with getting max airflow to my radiator :-) LOL!

[@CountryBoyShane]

One other thing, a vacuum filler is a life saver. I have a Lotus Elise where there are numerous runs in the coolant system that trap air. Filling the system without it is a complete pain in the ass!

[@ebf1003]

Electric water pump/assist pump

[@duchuyle3258]

Mine is having a working fan clutch with a proper shroud

[@RadDadisRad]

Turbulators prevent laminar flow and keep the liquid in turbulent flow. Turbulators are tuned to the cfm of the flow. Anything below the minimum cfm and the liquid will remain in laminar flow and the radiator will not cool as well.

[@winston11381]

Mike is the most genuine car enthusiast/tuner out there. Love these videos!

[@stevenlong4567]

Great video Mike

[@termonostruman]

cars DO NOT OVER HEAT, IF THEY Do YOU have to repair it

[@rhubarbpie2027]

I love the mention of electrolysis/ galvanic corrosion inside the engine. Mike, I swear if I ever have the money I'm going to send my 3SGE for you all to build. Love your content ❤

[@DamonWolf2392]

This man spittin fax.

[@allisonbrautigam1444]

Mike always spittin fax.

[@elJaviFlores]

Straight fax

[@truth4reel]

For a few decades now

[@JDMluvDSMkila]

Always does

[@rkelley8475]

Lol sometimes but not really

[@BrooklynTony1]

I’m afraid to skip your videos and miss out on some cool info

[@r.b.ratieta6111]

Mike is the kinda guy you can talk with in any environment for hours and have a pleasant, no-B.S. experience.

[@BirdwellingtonAmalgamation]

Watching him talk, you can tell Mike truly loves cars.

[@nzpork1]

This guy is so chill but he really knows his stuff.

[@pedroestrada1017]

I remember walking into O’Reilley’s and asking for water wetter. Dude behind the counter didn’t even skip a beat and told me they didn’t carry that. I walked around the store and found it. Same dude ring me up and was like, “huh, I didn’t know we sold that.”

[@radflaco]

Do a video on braking system setups 👍great videos btw

[@motoiq]

Good Idea!

[@adudeinaplace7174]

I love watching your videos Mike! Always so easy to digest and so informative! I'm an apprentice mechanic, not much money to pay for expensive stuff ups, so thank you for sharing your hard earned knowledge!

[@randoorlando443]

Yes, couldn't of said it better myself

[@DriftingLifeSideways]

When I heard Sacrificial Anode it was right their you know Mike Kojima knows something about chemical engineering, Pretty cool I love proven science and engineering.

[@IlPinnacolo]

Great advice. If I may offer advice not mentioned: A mechanical clutch fan. I had done all of the mentioned tips in this video and my time attack camaro with a stout 383 would always get too hot on track. I had a popular oem electric fan setup on it and rather than spend 500+ on an insane brushless electric I simply bought a stock mechanical fan with thermal clutch. I deliberately left it unshrouded so that vortex ring state would limit hp loss at high rpm. I also went to an underdrive crank pulley. I also was able to duct the "prop wash" out of the hood quite easily. IMMEDIATELY solved my cooling issues and set new personal lap records. Just imagine what even a 3 hp electric motor looks like in size and youll realize no electric fan can really pull much air because they simply don't have enough power to do so. I saved 6 lbs off the front end of the car to boot.

[@akashmaharaj3389]

Walking performance-car-guy encyclopedia. What a legend this Mike dude.

[@stevesloan6775]

Man that’s so good you mentioned cavitation. My classic ford mk1 escort has a Kent 1600-1700(90tho over sized) that revs to 8000rmp. The cast aluminium coolant outlet on the head shows massive cavities in the alloy after only 1500km of hard driving. To the point I had a smaller crank pulley made. The alternator doesn’t like 8k either, so hopefully that is better now to. If we could harvest cavitations energy for say pre combustion chambers water injection charge, we might be onto something.🇦🇺🤜🏼🤛🏼😎🍀😊😊

[@fastinradfordable]

Most coolant flanges and block/head outlets benefit from porting. Easier flow Means less cavitation.

[@RadDadisRad]

Water wetter is AWESOME. I put it in my truck that I tow with. I was staying at 230F-240F consistently pulling a trailer up the mountains in Colorado. Then I did a cooling system flush and changed the radiator and added water wetter. Never get above 220F now.

[@wirekat]

Great video. We are struggling with an LS in a 350z. We added a swirl pot (Merlin Motorsport - UK), lower thermostat (Summit racing 160), higher pressure cap (Moroso 23-25) and a vented hood. It might be our radiator, so that's next. We bought an expensive Flex-A-Lite (they quit making radiators recently) so we will probably go with a Koyorad next.

[@motoiq]

A 350z is one of the cars where an air lift is a must because the radiator is so low, we have to keep sucking for about 20 min, run the car and repeat a few times.

[@tannerjohnson1326]

Spent forever trying to stop my turbo miata from getting hot on the highway and what fixed it was making an air dam/duct so no air could go around the radiator and intercooler. After like 10 minutes on the highway I would have to pull over and after I swapped it it keeps it cool enough the thermostat doesn’t have to open. I made it out of the same stuff people use for signs in their yard. Like those vote for this senator/ governor ones.

[@ChurchAutoTest]

Cardboard is your best friend when doing home built fab projects on a budget!

[@fastinradfordable]

Adding an under tray greatly improves radiator efficiency. Because without one high pressure air builds up into engine bay from under. And this can actually cause the radiator air flow to be so obstructed it actually reversed. Look it up. Don’t spend your fuel catching air in the front of the car. Spend it spinning the tires.

[@PinkFZeppelin]

You were probably missing your under tray.

[@gafrers]

Great stuff and explanations. 👍👍👍👍 Not selling/shilling snake oil or miracle products, birthed by the marketing departments.

[@hdoglesby]

The bleeder funnel with the lid works well with the liquid block test kits - All you need to do is cut approx 1" hole in that lid so the block test kit's tapered rubber bottom fits snuggly. Keep the coolant level in the tapered part of the funnel and use the block test kit as normal. I've gotten best results with this

[@fastinradfordable]

Ooooh that’s a good idea! Thanks! It always sucks to lower the coolant level for the test and have the coolant level rise and spoil the test

[@NengHuynh]

Plumb the oem wiper fluid tank to a meth injection kit for cooling charge temps. OEM wiper fluid low notifications when it needs a meth refill 👻

[@motoiq]

That sounds like a decent idea.

[@kingzionmusic]

I thought i knew about cars after watching this i found out i know about cars but i dont know ziltch about racing. The cooling system alone is a science. I thought electrical and transmissions were a science which they are but cooling seems like a whole othee demon.

[@zslemp]

now can we all harass koyorad enough to offer a rad for 3sgte swapped rav4's

[@thexpression27]

Super informative as always love the channel❤️

[@esco1578]

This man must be protected at all costs!

[@whipzsurgeon]

I always pulled my WD21 pathfinder up on the sidewalk to bleed the air.

[@jso726]

So much knowledge and experience, thank you sir!

[@SEPU03]

First let me tell you thank you the information you supply on this particular video and other ones are excellent for people to know including myself who want to get into check weekends No so keep doing what you do really appreciate it and I will spread the word if you have any stickers that you can provide me to put on my car to help with your channel I would love to do so

[@slawrence6366]

I’ve seen bro in quite a few videos about different areas and a bunch of insightful tips… I’d definitely pay him whatever he wants to build a car for me…

[@mrch33sehed93]

Mike could be talking about how to unroll toilet paper and it would sound intriguing 👏😅

[@CoyoteKid60]

Thanks so much Mike! I'm a 60-something guy that's only got into tracking my car in recent years and every time I'm on the track I realize some modification I've made is not right, or not enough, and beside whatever I've done, I need more! So your vids are a great help. Thanks!!

[@motoiq]

I don't know why some people think every damn video is a product advertisement. You guys want me to just stand in front of an empty table with no visual aids all the time, get real, start your own channel...

[@CoyoteKid60]

hey there@@davconelectric , you sound like an arm chair wannabe "enthusiast." If you ever actually build a car for the track you'll realize there's a LOT of junk you can buy for your car. I appreciate that Mike gives some clues on quality products. If you wanna bitch and moan about product adverts, go ahead. But I'd asy your just a troll.

[@chriso1373]

​@@motoiq shots fired! You tell him buddy!

[@davconelectric]

​@@motoiqpoint taken

[@ancientsociety653]

@@motoiq meanwhile i'm out here taking notes on what brands the real race cars use... that's like half of my research done right there! Thank you!!

[@AarenPho]

DUDE YES MY FIRST HPDE I WAS HOT AF LOL! Are you gonna be at LSFest again?

[@motoiq]

Probably

[@htthepunk]

Good stuff as always Mike! What is your opinion on heat shrink hose clamps (Gates power grip etc)?

[@motoiq]

I heard they work well but have no actual experience with them.

[@sleepydragonzarinthal3533]

I've tried to explain electrolysis to so many people in and out side of automotive instances, and people are like.....wut? So when I heard "the aluminum acts like a sacrificial anode and....gets all messed up" it reminds me of all the tiems I started to explain electrolysis and, in the moment, realize I am about to lose my audience and need to keep it simple. love Mike's explanations including both the laymen and in depth explanation for important concepts

[@tbas8741]

I Love all your Videos and almost everything is great. Except that info about cheaper Silicone Hoses. Most of the branded ones are Re-badged cheap ones (like how Whiteline Swaybar Links are Bought from a Chinese Brand, Then made to look like whiteline, Being an Aussie i have seen their Post Arrive with 50 SB-Links from Chinese Ebay Store..(2 weeks later they different colour and on the shelves as White Line Heavy Duty Alloy Links.) 3 Ply Silicone Hose Cheap or not are basically the same (The difference is in the 4-5 Ply Heavy Duty Expensive ones but their are no "chinese version of them",) Been running Cheap Silicone Kit for all Coolant Hoses on a 99 WRX for Last 14 Years Almost 150,000km and Turbo charge Pipe & TMIC Coupler for Same Time. Zero Leaks, Splits or Seepage And Removed the TMIC 15 times in 15 years as always check it for oil tho never seen a drop of blow by oil in my intake as my PCV system is working. Being in Australia Where it get HOT! (45*C in the shade here can be upto 80-90*c in Direct Sunlight Down Under. (or only 10% of Boiling Point) Has not made them soft or weak hoses.

[@alibabaei1953]

thanks for not making your videos into 5 hour cancer vlog video playlist. your videos are info packed, simple to understand, professional, has solid explanations. I cant thank u enough

[@ianriggs]

"cuz air is lazy and doesnt want to go thru your radiator" 😂

[@BB-pf2cs]

What about oil coolers for naturally aspirated drift cars/ track cars?

[@motoiq]

Yes, every track specific car needs one

[@getnanoed]

99 GC8 recreational car I use a racing tstat with stock radiator and stock radiator fans. I rewired my driver fan to a stand alone power switch and the passenger side fan activates like normal it turns on when Temps get 180d.

[@hyper8545]

Got a heat gasket problem? Overheating a little to much? Blast that heat and carry a gallon of water ;] 😅

[@motoiq]

It will often get you to where you can fix it safely. Don't drive like that for long, you will end up fissuring the head and block which are intensive and very expensive repairs.

[@hyper8545]

@@motoiq those poor d16s xD

[@adammitchell6359]

Always the best advice from this man!

[@Banzai-ob4hb]

Thanks for your service Mike been fallowing you since sr20forums

[@janmolenkamp3778]

A big hello from Australia , thank you so much for all your advise , will apply your recommendations onto my SR / 20 DET .

[@motoiq]

Most of the stuff on the table is going on an SR powered S13!

[@Mitsubishilover04]

If taking video ideas, I would like to request a 4g63 video. Thanks!

[@motoiq]

coming!

[@RadDadisRad]

I really like Gates green belts. I use them for my tow vehicle and also my supercharged f150z

[@mikeadams8145]

Thanks so much for sharing all the valuable information that has always been kept secret we are so blessed nowdays. Always listen to your elders

[@johanahmed5660]

omg i like this guy vids he is so calm and kind and honest and he knows what he talking about

[@jessicaphoenix1312]

Thank you for the good info! I like the 230/250 rule with engine temp and oil temp. I usually get to 222/246 on track and feel like the car is near it's limit instinctually, but now I have some information to back that up.

[@mhk67091]

Great information Mike!!

[@teqdigest]

Thanks Mike for another quality video…but what’s up with that old grocery getter Corolla in the back 👀

[@motoiq]

It's Martins 300k beater, runs great!

[@teqdigest]

@@motoiq he's a man of good taste 🧐

[@CJ3USAF]

Awesome video! Thank you for all the great info! 🤙

[@Sero12245]

My eclipse probably needs a bleed. Temp guage only hits 1/4 fully warmed up at idle. Driving it goes to the 1/2 mark until stopped. Ill try jacking the front up, thankyou for the advice. Also iron block and aluminum head, thankyou for the heads up.

[@shakultra]

Just dropping this here, if you have a 21 WRX with a grimmspeed fmic and perrin oil cooler the CSF 2 row radiator will not fit, the koyorad will. Hope this helps someone.

[@tonyp9179]

Imagine this guy and an unlimited budget

[@motoiq]

I wish!

[@vermontvermont9292]

Can I come work for you? I'll just sweep or whatever. For free lol. You're about 10% cooler than anyone I know lol.

[@supermoop]

Something overlooked: pressure and temperature gauges. It's pointless to put all these parts in without the feedback to help you determine what you need to resolve your cooling issues.

[@k20fg2apexjunky2]

🔥🔥🔥🔥🔥🔥❄️❄️❄️❄️❄️❄️❄️. Thx for the great info.

[@shakultra]

I have a koyorad radiator now on my 21 wrx and my temps have been getting up to 224f is this operating temp good if I'm doing spirited driving I saw you said 230 isnt good

[@kcvu7215]

Just curious do notice a big difference in running the redline supercool 50/50 premix vs oem 50/50 + water wetter?

[@motoiq]

we didnt test that

[@My2ndtimearound]

This man is nothing short of GENIUS. I believe every word he speaks as gospel.

[@uses0ap]

Referring to "tucked" radiator setups with AN hoses on a dedicated track car -- Any pros/cons in cooling / coolant flow when converting from traditional rad hoses (Larger Hose I.D) to AN-hoses (Smaller Hose I.D) + fittings?

[@motoiq]

On high-powered race, track, and drift cars other than drag racers, we have had lots of problems with those setups.

[@anydaynow01]

One better than the bleeder funnel is using one of those vacuum fillers. That way I can do a leak down test then flip a valve and pretty much fill the entire coolant system from there. That a Koyo radiator and using a swirl pot and high pressure cap on the pot and I haven't had any more problems with my G overheating at trackdays. That and I put in the Z1 oil cooler and got rid of the stock oil cooler (warmer?) sandwich plate.

[@motoiq]

I totally agree with you and we use one at the shop for known difficult cars like the RSX and the Z. This funnel is something that's cheap and makes a huge difference and everyone should use one!

[@TurboHappyCar]

+1 for the vacuum fillers. The NC miata is A TOTAL PAIN to bleed. The bubbles come out when they want to, not a second sooner. I'd have to drive in 1st gear at 6000 rpm around the neighborhood to finally push everything through. (Including the funnel, raising the car, revving, holding at 5000 rpm, anything.) Vacuum fill works every time.

[@ebf1003]

​@@TurboHappyCarThat's just God's way of telling you to k swap it.

[@TurboHappyCar]

​@@ebf1003 Heeellll nooo. 😂 I'm completely happy with my ford fusion sedan engine that makes 50 hp less. 😅 My buddy k-swapped his NB and it had so many problems I don't think he completed a track day.

[@zedikiahh1695]

im going to do this instead of fixing my head gasket

[@motoiq]

If your head gasket is leaking you had better fix it first.

[@ericdelrosario6779]

Thank you very much. We like your knowledge, skills, passion, and your smile.😊

[@shoominati23]

I like how the ford FE engines in the Fairlanes and Galxies had the radiator expansion tank bolted straight to the thermostat housing above the block. Zero chance of the heads running dry due to elevation changes. There were plenty of cars during the 80s when their was a push for lower bonnet lines for reduced drag and better fuel efficiency that suffered from overheating and engine damage if the coolant level got low due to having the radiator at or not much abovethe cylinder head height, a risk that the other 98% of the population who arent petrolheads and treated their car as a simple appliance to take them from A to B everyday and didnt keep on top of maintenance.

[@DanDolomount]

Thanks man. Lots of useful information and products I had no idea about. Appreciate it.

[@cnknguyen]

Hi Mike.

[@aygwm]

Rust in the block really ruins cooling efficiency. Evaporust is an incredible tool to de-rust old blocks

[@RDGarage]

Great video, I overheated just seeing that global time attack car in the background 😜

[@robertcussen8039]

So 1 bottle of Diesel Wetter Water did improve the temps in my case. Been running it for about 2 weeks now. History DETROIT Series 60 11.1L rebuilt 4 months ago, new radiator 1 month ago. It was running 10-20 degree hotter than my old leaky radiator 1 bottle of WW has drop the temps, gonna try a 2nd to see if I can get it down to run evencooler while pulling hills loaded. What I think is happening is that Wetter Water is coating the inside of the aluminum/copper radiator and fresh piston sleeves making the coolant flow faster past the new fresh rough surfaces. Honestly I really didnt expect to see any change at all but I have.

[@purplejerry1]

hello e36 and e46 owners i am also one of you

[@ngrinshift4383]

This stuff created a black residue in my cooling system. Deteriorating my hoses ??

[@vaughnhoplamazian5209]

What's your thoughts on installing an electric water pump? Especially when coming off the track, wired up the high speed on the radiator fan and pump and leave it on till the temps go below150 degrees and allows the engine to be off.

[@gabrielfigueiredofc]

What a great professional! Congratulations for all knowledge you have and thanks for sharing.

[@UberManlyPirate]

This guys knowledge is straight up brain ASMR

[@balzonyr4head]

I have a car that blows the upper radiator hose off at 225, hell of a way to let you know it's too hot 😂😂

[@penzman]

Great video. I always think someone is facing him making faces and gestures trying to crack him up.

[@bluboi1483]

‘Just about every turbo charged car is going to have an overheating problem…’ hint hint fmic … lol

[@p0intdk]

Have any experience with water cooled oil coolers? Thinking of maybe doing it because of packing reasons.

[@motoiq]

They don't seem to work that well in my experience.

[@m0rb1d43]

OEM's generally use those because they help with warming up the oil faster. You would need a huge one if you want to actually use it for effective cooling on track.

[@motoiq]

Also heats up the coolant

[@ebf1003]

​@@motoiqwhat about laminova?

[@motoiq]

If it's cooled by engine coolant, it's sort of an oil heater or you are trying to exchange heat with a fluid that is almost the same temp as your target temp, no good, if it is oil to water, it's probably tool complicated and heavy. About 15 years ago we tried it on a time attack R32 with an RB26 which run really high oil temps and they sucked and I have never used them since.

[@leviscott8519]

Thank you Mr. Treasure Trove! Love all your video's sir! The difference is in the detail for sure my man.

[@lukerogers78]

Thank you Mike.

[@dilbyjones]

No CHEAP JUNK :)

[@joxxeyy]

Hello, would you recommend a lower temp thermostat aswell? Thanks!

[@motoiq]

some times

[@danielfietkau733]

china stuff made of "who-knows-what" yes, cannot recommend that. buy cheap, buy twice

[@marmack59]

Very informative video. Thank you for taking the time to make it for us.

[@hyojoonus]

Great stuff! I didn’t know about the surge tank.

[@shaunfogarty5744]

Those hose clamps come on Volvos if you frequent junk yards...

[@Getsobertodayforfree]

God bless

[@xbgtfella]

Well explained. Will apply these to my xr 6t. Thanks for info.

[@Twobarpsi]

Great advice Mike! I use the same funnel. Do you have an opinion on Oetiker clamps? Thanks!

[@motoiq]

Supposed to be good but hard to service especially on a racecar.

[@Thechriskraft]

Oetiker clamps are great. SeaDoo used them in the ‘90’s on the water hoses. The best part is that it gives good clamping pressure all the way around the clamping surface. Only downside that I see is that it is a one time use clamp. Though, compared to worm gear clamp, the Oeticker clamp does not scratch your skin when working near it, or reaching beyond the clamp to access something else in the bilge, or engine bay in this case.

[@konholio2]

This is easily becoming my favorite channel

[@2LAZY-2EDIT]

I want his voice as my ring tone "hey man you got a phone call"

[@cameron6554]

What do you guys think of replacing belt driven water pumps with electric pumps?

[@motoiq]

sometimes they dont pump enough

[@cameron6554]

Ok, thanks. Cheers for the reply. Working on my own and these videos help.

[@Seth-vv8hv]

Tell us about the green Camry in the back? Maintenance and suspension for a few topics?

[@motoiq]

Actually its a Corolla, bone stock, and 300k miles on it. It's Martins's beater, runs like a champ!

[@Seth-vv8hv]

@@motoiq can you tell me anything about the 5s fe engine? Is there anything else besides maintenance that I can buy to squeeze out more reliability?

[@irfandani69]

Great info !

[@korosuchimu1479]

Thank you for another great video. I live in Japan, what Japanese coolants would you recommend here?

[@motoiq]

Honestly I have no idea, we have not tested any Japanese specific coolants.

[@shirichieru]

Is it better to use a 1.1psi in a semi modified car ( 4A carb with ported & polished head and lightened flywheel) with a spirited driving habit or just stick with stock spec of 0.9 psi? Loving your videos btw. Every vids are full of knowledge.

[@motoiq]

PSI or Bar? 1.1 is fine as long as the cooling system is in good shape with fresh parts just as stated in the video.

[@shirichieru]

@@motoiq Sorry it's 1.1 kg/cm^2 (16psi). Noted on this. Thank you!

[@TheInflux29]

very true…❤😊

[@HealthSupercharger]

Wonderful information. Thank you

[@hpautostyle]

These Moto iq videos are such a great informative resource 🙏🏼