The ULTIMATE Miata Cooling System Upgrade: Radiator, Reroute, Ready to Drift!

[@Bizerker]

I never comment on videos, but something about your content makes me feel like a child could work on a miata and do just fine with the video as a reference. Great job Greg and thank you!

[@TheBishop12]

Tyler rodriguez miatas are the ak-47 of the gun world. Even a child could shoot it

[@ruzzzlan]

Can confirm. Am man-child

[@xucaen]

I feel exactly the opposite watching these videos. I see all this work to be done and I just get overwhelmed and feel like I don't even want to deal with it. 😂✌️

[@PDXMiata]

@@xucaenfr. How In the world would I be able to reset the timing 😂

[@farmerbobbygrows3338]

Tbh... I love the sound of the birds chirping in the background and the natural display of sound instead of ear raping music. Your channel has a chill vibe awesome you can bring us great content

[@miguelflores6985]

those shots between 8:10-8:45 where you were slowly and quietly undoing stuff was strangely soothing

[@andrewcowden9704]

A few tips I've found on my car. 1. Loosen the bolts on the PPF on the transmission. Then raise the back of the transmission up to gain additional clearance to work at the back of the head. 2. You can drill new holes in the radiator to move it forward. On my CX Racing radiator I was able to move it almost 0.5 inch forward. I just put some foam between the radiator and the upper core support to prevent rubbing. 3. Be wary of wiring the fans together and running them through a single relay. That's a lot of amperage for a single relay.

[@SOMAC_]

This KZbinr from the Netherlands is probably the best when it comes to all things related to Miata.

[@Fuentes0311]

Great content man. I cant tell you how hard it is to find someone who puts as much quality into their work like you do.

[@TheCarPassionChannel]

+Fuentes03 I'm really glad the work shows. Sometimes after 3 days of filming and 6+ hours of editing I wonder if a 13 minute video is worth the effort; but I'm pretty happy with the outcome on this one.

[@Fuentes0311]

i think it will be in the long run as long as you keep up the momentum. Even though youre going through familiar territory with the Miata (alot of channels started by doing Miatas), there's so much substance your videos have that others dont.

[@tobydorfman975]

"try not to spin this because it is going to go back on the same orientation it came off" god that will be so tempting to spin it

[@almfreak]

it's time to play... "wheel of fortune!"... as in, I'll spend a fortune fixing my motor after i break things from screwing with the cam sensor... lol

[@tobydorfman975]

haha lol

[@Prestigeairsoft]

i spun mine, not as hard to realign as he makes it out to be, but would still refrain

[@TheCarPassionChannel]

It's not required, it just makes install easier later because you don't have to figure it out. Not a big deal at all

[@yuuyiatakahashi1943]

Cool to see you rocking Gingiums shirt, I enjoy his material also. Glad that you covered the cooling reroute finally, just for the simple fact that a lot of people don't realize how weak the OE system is. Even a fully trimmed stock miata with the AC running on a hot day with a non observant driver can end up with a blown head gasket. Like you mentioned there are a range of re-route kits out there as well as radiator and fan combos. Just do research and find what is the best option for your budget and application. Great video quality, STREAM Lights are the shiz, Loved that you took the time to get good clear shots of all the hardware and parts. Looking forward to more content.

[@TheCarPassionChannel]

+Yuuyia Takahashi Yeah just that top link on my site pretty much tells people exactly what to upgrade on their car and how to keep it cool, there's way more involved than 'throw in a huge radiator' haha. The built motor car will definitely be getting some serious attention when it comes to cooling.

[@almfreak]

great video. Another good reason to use that insulating strip around the fan shroud is to reduce vibration noise. ever since putting the stiffer motor mounts in my Miata, the fan shroud has made an awful racket against the radiator. $8 worth of foam weatherstrip tape solved that in about 15 minutes.

[@huevoneousmaximus2309]

Excellent tutorial video, no stupid BS, no clowning around, direct and to the point. Good job, thank you!

[@owenmckee4053]

Do a face reveal

[@thelonewanderer420]

Owen McKee are you serious?

[@failbox.]

Yes.

[@lordflufffluff]

I get the joke

[@twincamuuu]

What a great day. Carpassion channel and Gingium uploaded a video on Miata 😀

[@mrmohr2]

excellent video! you have taking extra time on the important details and skimmed through the unimportant details really concentrating on the most important things. Love it!

[@pawpatina]

you won't need a timing light if you scribe the position of the CAS

[@TwinZpeanuts]

you : this car is gonna be 100% road driven also you : i'm gonna take it to a drift event hahaha good video

[@Law-sz6dh]

Holy shit what a coincidence! I was looking to buy some coolant and saw a page explaining how to cheaply do a coolant reroute, and then you upload this 10 mins later hahah!

[@TigerUchimaru]

I felt confident in trying this out until I heard the term "reset ignition timing." Then I just nope'd the fuck outta that idea.

[@TheCaffeinatedDrive]

can't wait for the drift videos!!

[@GearHeadsGarageChannel]

That M-Tuned piece for the back of the head is really nice, I'm going to be using a block and stock 1.6 thermostat housing cover on top...not as nice but it was cheeeeeppp!

[@alecparkes5036]

this is only video i asked for the day i found your channel forever ago. FINALLY

[@KyleBarrf]

Just a note, if you don't have a timing light, you can simply mark the position of the CAS with a sharpie or pencil and it should be exactly back to where it was before. ;) It is important to remember how the key is aligned, but it's not the end of the world since it was designed to only fit in one way. I forgot and it took me a good 30 minutes to slide the CAS back on, but it did eventually go on and ran like a charm.

[@ricardougalde9327]

thank you from México, can you make a ls1 or ls2 coil conversion video ?

[@NashCustoms]

Ricardo Ugalde yesssss

[@emiliano29171316]

Ricardo Ugalde es de California

[@carloscardenas9812]

Yes!

[@bagelbytes69420]

Been wanting this myself for a while, please Greg!

[@GreenTurtle261]

You are the reason I'm saving up for a 1992 Miata 😃

[@TheBishop12]

Tito El Bandito follow your dreams!

[@abbrad17]

Very well done video as usual! Getting those shots behind the motor has got to be a PITA. This channel is a work of art

[@TheCarPassionChannel]

Hahaha. That coolant sensor upplug = my masterpiece of the week

[@revlimiternet]

+1. I'm proud of myself when I get a good still shot. Doing video behind the engine? No sir, I'll pass. hahaha

[@TheCarPassionChannel]

Hahaha. There's a reason you don't see 10 channels doing detailed Miata tech videos, more work than a lot of people think, lol. I linked your DIY reroute on my site btw, killer work as always.

[@pistonpoweruk2124]

i have the same radiator the stock fans definately fit. well worth the upgrade!

[@NickNardone]

Dude this channel is so f’ing incredible.

[@AF29007]

Liking the new video annotation text style, looks much cleaner.

[@troysebo3172]

How is that Radiator holding up, any complaints, issues, or things we should know about before giving CXRacing our money? Once again thank you for the time you take to education the masses!!!!!!

[@jamesjosephkaminski]

Thanks Greg! No worries on the wait. The timing on this video couldn't have been better for me. Keep up the great work!

[@tobydorfman975]

And by the way i love the new ending of the videos!

[@pec1739]

yes ! radiator with shroud = smart +efficiency if only the shroud is larger to cover to the edge of the radiator fins, the top and bottom tower is ok

[@charlesmcgehee3227]

Very nice lesson. The cab of the car will run cooler as well. (firewall will run much cooler.) Greg you really have a gift for teaching. Thank you Bro.

[@MyLonewolf25]

To help with cooling you should also add a BUNCH of ducting Literally any air that's coming in should either be ducted to the rad or the intake But you can also add some hood venting to help with the release of that hot air Cooling is ALL about getting the air into and through the radiator and back out as efficient as possible

[@pistonpoweruk2124]

you can also wire your air con button to switch on the fans for those on demand emergency cooling moments

[@pushhrodd01]

Great Video Greg! Even though I don't plan on pushing my Miata to the extreme or turboing it, I still want to upgrade the cooling system because I have heard that Miatas sometimes have the tendency to overheat.

[@lordflufffluff]

I'm probably going to own a reliable daily driver along with a project car. This should allow me to not worry about getting my project car ready in time for work. I have very low expectations for myself when it comes to projects, but I always struggle more than expected.

[@sampatton548]

GET WELL SOON GREG!!!!!!!

[@jdmeaux]

Greg, you did an excellent job of explaining how to do this job. Now try that on a Ford 4.6 liter 4-valve engine. You got to pull the heads.

[@jeffhaft7378]

Wow I just now noticed your shirt lol, love Molly... beautiful blue Miata. I'm at the point of trying to get by big hands in the back to clean off the last 20% of the gasket to finish the FM coolant reroute kit and I've been diving into old videos......I don't know how I didn't notice the shirt...lmao

[@stonesorenson4506]

Sooooooo glad this vid finally dropped, thank you for the excellent content, the most informative channel on this site by far!

[@crxh22honda37]

How come you didn't weld the pinion shaft. Jw there wasn't any play in mine. Still put 4 tac welds on to be safe. This video made it easy. Thanks Greg!

[@jonathonsmith7694]

Greg! The stock fan harness is not up to the task to run those fans efficiently! I recommend running your own power wires off the alternator with a relay of course. I own a Turbo Miata I know.

[@colin_g]

Isn't there a simple trick to wire the fans to come on in parallel?

[@KyleWithStyle7]

someone please provide a link for a diy!!

[@almfreak]

on the NB Miatas you can use a quick-splice to connect the AC Fan and Radiator Fan trigger wires to one another at the ECU. The trigger wires ground when active, so if the ECU calls for one fan, both relays get activated and both fans come on regardless of which fan is called for.

[@MyLonewolf25]

Jonathon Smith cool! Didn't know that Learn every day!

[@jonathonsmith7694]

+colingreczkowski, he did wire the fans together. but both of those bands together to pull way too many amps for the factory Car Harness to handle. Best run your own power wires off the alternator, with the heavier gauge of wire to a good heavy duty relay(i run a 100amp relay and 10 gauge wire) I just why are the relays power to the cars old fan harness. once you wire up the fans the new way those fans will sing!!!

[@viviid2012]

Do you remember the lengths of the joined hoses? The piece b4 the thermostat and the long hose between the 90* and 45* hoses? Awesome video btw :) thanks so much!

[@Gale_Force_Raceway]

Why add those extra points of failure/leaks with all the extra clamps n hoses? We split our (exact same kit) in 2 and also moved the thermostat a little forward.... And that shroud really works... We also grabbed the SPAL (?) fans, and an over-ride switch so I can run them at will....

[@blakeriley6690]

Honestly the radiator is fine, it does its job. but dont ever skimp out on fans. buy good ones, thats the mechanical part thats moving air. I made the mistake of cheaping out on fans in my turbo na. After a year, one fine day they skimped out on me, luckily i was paying attention, but one bad overheat and thats a head gasket or engine rebuild. Im running 11 inch spal fans now and they move some serious air and are super loud. I can hear them kick on from the engine bay and thats also good because i will know if they are working or not while out on a drive.

[@DanielMraz0393]

Greg your videos are clutch, and easy to follow! I just got done with depowering my steering rack. now on to the next one! #brokeandnotboosted

[@BrianSSH]

There's some cars (I think it's jeeps) that come stock that use the "ricer style" fan mounting

[@jodutton4318]

another good video and i agree LS1 ignition conversion would be good

[@riods69]

Thank you for finally doing a reroute!

[@bluehorseshoe7171]

Good tutorial. Clean and decisive presentation.

[@ianm432]

The problem with those remote style thermostat housings is not flowing well to the thermostat. It just dead heads to it for the length between the heater hose and thermostat save for a very small amount of fluid that goes through the air bleed hole in the thermostat. When it dead heads it doesn't heat up the coolant at thermostat as soon which makes it take longer to get up to temp and can make hot spots.

[@TheCarPassionChannel]

I'm not worried about it, the companies that developed this kit have been racing Miatas for years and even run their own racing series (SuperMiata) along with building some of the meanest Miata motors around. I trust it. With the sensor in the rear housing I'd also see if that coolant was raising higher than the thermostat opening temp in my warm-up datalongs.

[@ianm432]

TheCarPassionChannel it's not an issue once the t state is open. It's a minor annoyance to me until then.

[@TheCarPassionChannel]

No I'm saying if the tstat is a 195* unit, if there was a delay in opening I should see higher than 195* temps in that back housing before the tstat opens right?

[@ianm432]

TheCarPassionChannel yep, but it probably doesn't actually matter that much. When I do mine I will pull the heater hose outlet from just before the remote tstat to circulate it. All so I can sleep at night because I'm a wing nut. Hahaha

[@TheCarPassionChannel]

But wouldn't you have to wait longer for your heater to warm up? Not that it's a big deal, I just hate the cold, loll

[@k2ombs]

Love the video, but I was stunned that you just yanked the spark plug wires without indicating how critical it is to identify each wire for proper replacement.

[@TheCarPassionChannel]

Habit... I just know where they go. You'll know if you get it wrong trust me 😂

[@IanRShearer]

Nice, the editing is really good

[@KaDaJxClonE]

great work. love to see all the progress.

[@MiataMods]

Yeeeah finally! Such a great video Greg, you explain everything so well and with so much detail.. Love it! Thanks for making this video!

[@guerrinlove69]

thanks a ton man !! gotta do this on my 1.8 here soon to get ready for boost

[@eel1331]

you and Tyler fialko deserve more subs

[@schalke04chester]

Really awesome Video Greg! Will try this on my 1994 1.8L soon :) I'll take it onto the Nürburgring Norschleife a Lot next year and the cooling needs to be on spot! :)

[@nicoleibundgut534]

Mit Turbo?

[@valhallaholsopple]

thanks for this well made tutorial. I have been waiting for you to do this. very helpful

[@Gumbicore]

Hey if you ever get a chance will you do a video on a miata wire tuck????

[@Ch0k0TB]

4:12 Steel bolt into aluminium will rust very quickly.

[@timadams1827]

Awesome video. Lots of quality information. Thank you.

[@lilshowershoe]

Is this the same route you ran on your other car before it blew up? Also, we want a COP video.

[@charlesmcgehee3227]

Think about that. Remember the condition of Piston # 4? I am going to guess there was no reroute but I'd really like to know. Do tell.

[@MrEp1kk]

As always man, your videos are informative and fun to watch :D

[@mcsalt55]

I did the reroute on my 02 miata and its still running hot at low speeds. Is this common or so I have an issue? Any and all information would be great.. keep up the good work

[@vitaliyyavtukhovskyi5947]

Yay, finally! Thanks for doing this!

[@mikecousins1]

Hey Greg - since I've had an NA, two NB's, and now a 2005 MSM, I noticed that my MSM was missing the belly pan (splash guard). After trying to find one, I found out that the MSM DIDN'T COME WITH A BELLY PAN !!! So, I guess the logic that it is there for proper cooling and aerodynamics, isn't valid !?!? well, evidently the engineers at Mazda didn't think so, cause I aint got one !

[@TheCarPassionChannel]

I would be very surprised if the MSM did not come with any sort of under tray.

[@ReggieRed91]

YES~! It's finally here!!!

[@Thecoletheman1000]

Thanks Craig

[@mattd390]

Great video. You make it look easy!

[@johnwilganowski5882]

What pieces did you use to the custom hose?

[@mrpaddy246]

you're videos are awesome man. thanks a lot 👍

[@Misfits89]

thankz for your time and lectures

[@ThierryTheuns]

Looking at this reroute, and walking over to my car and see what the previous owner did. Holy crap. Mine legit has copper pipes running to the back of the engine, instead of these actual radiator hoses.

[@CoupleofJerks]

It's a bummer u couldn't get the shroud on. I had that ricer fan set up on my drift car for a few events and it would get hot on grid. I'd end up having to turn my heat on to cool it off. Installed the shroud and that problem went away.

[@compuw22c]

How big are those fans? The reason I ask is I have Flyin Miata's SPAL fan setup (Stage 2 airflow kit) and they include relays for the additional load, plus I added my own small time delay to help with the huge load from the fans. I ask because I'm not sure the wiring you're tapping into would be rated for that kind of power, especially with both fans on the circuit (stock only has one). It's quite possible you did your homework on this (lower amp draw fans?) I was just curious. Your videos are great, love 'em as a fellow Turbo Miata owner.

[@myaturbz69]

Sweet vid as always bro!

[@dozergyp]

Good video, very well explained I think i will do the conversions on my MX

[@chrstndlrsify]

great videos. he makes it look so easy..

[@1knowsnothing1]

Another great tutorial. Love how stumbling in someone else's footsteps becomes obsolete when some guy decides to film the path for you. I guess that makes you a cartographer of boost.

[@josephrizzo7720]

So when I wired the fans, they won’t turn on until I put the ac on and I did it exactly like you did

[@LewisFoster2024]

By splash gaurd, do you mean the plastic undertray?

[@williamcarson423]

You inspired me to buy a miata

[@brahyant1]

love the gingium t-shirt

[@benmok6108]

hey Greg, what are the measurements on all the components of the silicone hoses you're using?

[@370zTEK]

Love your car. watching you made me turbo my car. Problem is that it drops to a really low idle sometimes when hot. Even cuts off. I have a 1.6L with 640 ff injectors, iat, bigger fuel pump and the megasquirt pnp2 ecu. Ive had it tuned and the "tuner" said he couldnt figure out why it kept doing it. It never did before the turbo and I think its is a tune issue. Im getting really annoyed!!.

[@molikeabossboss3857]

Question brother , I wired up both of my slim fans to my factory plug on the driver side and when I go for a long drive , the fuse keeps on going bad for the fan which is a 30 amp keeps popping, so now I only have one slim fan working. Any idea why I can’t hook up both fans ? I would appreciate your support

[@dittie83]

Sorry if this question was asked before - but with the thermostat part of the reroute - you mentioned to make sure that hole is facing up top. Why is that? I had my reroute kit installed at a workshop, and I've noticed a small leak coming from the thermostat housing. Would that be a cause?

[@BIGREDbowtie77]

Greg, . . You're awesome !

[@nbfelipe1662]

should really use antifreeze for its lubrication properties and anti fungal properties too

[@Striball]

He probably did, and that was him probably adding water to the concentrate antifreeze. Greg is smarter than that!

[@nbfelipe1662]

Striball probably but some of these kids are dumb and think its ok

[@TheCarPassionChannel]

+NBFelipe I left that info in the link below, I forgot to talk about it in the video itself. I run 80/20 distilled water/coolant + water wetter.

[@nbfelipe1662]

TheCarPassionChannel kool

[@yuuyiatakahashi1943]

yes, literally :P

[@adonismuminovic8941]

for the adapter wire extension is some copper wire and heat shrink good enough or..? Maybe I'm paranoid but I definitely don't wanna mess up this whole job over some wires.

[@TimNiro]

Another awesome job thank you 😊

[@LewisFoster2024]

My NB 1.8 just failed on cylinder 4, punched a rod through the block, could this have been due to lack of coolant flow to that cylinder and the reason for needing a reroute?

[@ZacharySound]

Have you noticed any difference in the way the car performs with that reroute?

[@HoboSmeller]

ive seen this video like 10 times but its always a good watch when im pooping.

[@ilyas5708]

Iiterally pooping as i'm watching this

[@mikeyerickson5876]

Wait, what did you do with the sandwich plate?

[@GaranPaneos]

those pocket size screwdrivers are like the unsung hero's for mechanic use.

[@Zephry2]

Can you tell me more about the side indicator you have on your passenger fender? I've seen a couple Miatas around here that have them too. I would assume it functions like the turn signal, but how? Did you just drill a hole in the fender and route some wires to the turn signal?

[@jmccarsnmore1025]

What’s the benefit of this reroute??

[@sl1dertheone]

Did you have issues with your throttle sticking because of where the re route Passed by looks like it's touch The throttle body Linkage