HILUX COOLING FAN TEST - Which works best? 10 Blade, 7 Blade OR Electric?

[@shannybangers88]

Awesome to see, my 1kz surf i put the 10 blade fan on, and it has made a difference, although I don't have an aftermarket temp gauge, I did modify the factory one to respond to all temperature changes, it roughly sits around the 90° mark on hotter days 35+ ambient, I feel it can be better just not certain how I can improve it though

[@soothingrelaxingmeditation3129]

for the an engine watchdog has been a game changer for me. I am going to use the 10 blade in the summer and the 7 blade in the winter for my area.

[@jamesleon2770]

More info on the fan please mate. Are you saying an 80 series hub bolts straight to a 1k fan and they bolt straight to the 2lte water pump??

[@GarretKrampe]

Hey Carl, Done a lot of testing on these . From my investigations you need a viscous with a good shroud. on the rear . But on the front you need a really good set of pusher fans also with a shroud if possible . This was mostly tested in deep sand full to 3/4 throttle.

[@kevinriese2167]

Great detailed video! I am in Canada and getting my Hilux ready for a trip to Costa Rica in October. I have been concerned of the cooling and am going with the Champion 3 bank rad with a 10” fan after topping off the viscus hub. Hearing the results of your test, I think I am on the right track. Will install an EGT ahead of the blower as you suggested along with the water temp gauge, after that piece of info stating the temp on a factory gauge doesn’t climb until 110c is reached😮. Thanks again!

[@060racing8]

If you're having cooling issues on the road, what is it going to be like when you're having multiple attempts on a big out hill climb in the bush or pushing through South Australian sand with no option but using full power to get through on a 20km soft section. Seems like there's issues with the tune also running the heater is a good trick to manage temperature if it starts getting hot.

[@Degekoify]

Great detailed video mate. I'm going through the same thing on a J90 Prado with a 3UZ 6 speed Auto, no room for a viscus. I think the main thing with thermos is they need space in the engine bay to let the heat escape. Going to see if EL/AU dual thermos will fit.

[@boostedbuiltgarage]

Yeah, Space is one thing, but to be honest they just cannot flow the amount of air needed. Although a 3uz has plenty of torque and is alot more efficient than the old 2lte, so you're already on a winner there. Albeit bigger engine requiring more cooling haha.

[@ryanhouston6414]

Awesome video. Glad to see such informative content on the 2L-TE. Keep it up mate :)

[@35jdub]

Glad to see the 10 blade does that much better. About to do this upgrade on my Prado and get some fresh silicone oil in the hub. I go out to the Rocky Mountains in New Mexico and Colorado, as well as a canyon near where I live where the descent into it requires 4L and L gear both up and down. Have been nervous about going out in the Prado because I just got done replacing the head and turbo a few months ago and I'm anxious about taking it offroad again since that

[@Mattswanderings]

When I use a thermal camera on my ln130 it never goes above 70f, (even on a hill where turbo temp goes to 900f and I back off to drop that) measuring thermostat or any hose. I have a 82f thermostat. How are you measuring temperature?

[@boostedbuiltgarage]

I'm measuring with a sensor in the thermostat housing next to the factory dash gauge sensor... You're either driving in snow or your readings are wrong because there's no way in hell it would be under 70⁰f

[@MaXimus666789]

Fkn epic mate! Keep up the great content!

[@Baumerts]

Great summary of your R&D on this topic. Starting with changing the fan and most probably the hub for my LJ78. As you posted this 2 years ago, would be great to see if you have some new takeaways from this... obviously, if you still have this car :)

[@Mattswanderings]

I flushed both my rad and heater core (separately) in reverse flow, all the shops are set up to flush in normal flow direction? Seems to me reverse will move blocks easier, worked for me!

[@thomasbernardoni981]

I'd suggest upgrading the front A/C fan to a higher output one with an external 'switch' for when 4WDing or idling after a big run. You could probably fit 2x the same size side by side if you really wanted to. Another option would be to modify the AC condenser to be underslung (late model KZN130s came like that), thus eliminating the extra thermal load in front of the radiator.. But this would not be something I'd recommend for someone taking their Surf offroad...

[@boostedbuiltgarage]

Unfortunately I don't have any space for pusher fan due to the tight packaging at the front with my w2a radiator. Would of been the first thing I did if I could fit. And also looked at moving condenser to aid in w2a fitment but was just no option and like you said, definitely not good to have anything low and in harm's way...

[@neiljohnson5000]

What headlights have you got on here, they look awesome

[@stephencapel6283]

I got a rodeo with high flowed turbo chiped 3 core radiator and au twin thermos and it keeps up no worries .l love the vids

[@seanlee802]

Sir, can 3L's engine fan clutch fix with this 10 blade fan? Will it hit effect the fan shroud?

[@ЛюбомирКацарски]

Good one. Thank you for sharing the test results with us! Have you got any external oil cooler ? If you do could you share some info about it? And also, I remember from your early videos, you showed us a water/methanol injection kit. Did you give up on it?

[@boostedbuiltgarage]

No prob 👍 no oil cooler yet. Haven't got to oiling system mods as yet, also don't have any good real estate for another cooler😬 I still haven't finished hooking up the water/meth setup yet unfortunately. I'm super keen to get it up and running. Just too much shit going on at the moment😪

[@Keithy_W]

Top vid man 👍 it’s funny given your original driver to try the thermo fan was idle and high load. Mine was fine with the viscous at high load and cruise (mind you it’s not a surf) but was no chop at idle, and the thermo only suffered under high load but sorted my idle temps. Really enjoyed watching this vid 👍

[@boostedbuiltgarage]

Thanks mate, yeah it's a shame there's no "one size fits all" solution, but it is what it is🤷‍♂️ will be interesting to see what difference a proper efficient, new tech turbo makes when I get round to that

[@helocrazedguy3347]

Will the 10-blade fan fit on a Land Cruiser KZJ78 Prado’s 1KZTE?

[@MrNotStock]

Love the graphs :)

[@boostedbuiltgarage]

Haha thanks. Woulda been way too much confusion with so many numbers flying around hahaha🙂

[@MrNotStock]

@@boostedbuiltgarage Takes a lot of patience to do what you're doing. Love your channel and everything you've done and continue to do!!! Thanks for the reply

[@marcusnordbruch]

Thank you so much for your videos and information mate, I'm from Paraguay and I have a 94 4 runner 3l engine wich I turbinated with the shitty ct20. Our normal temperatures in summer goes from 38 up to 45 degrees Celsius and we use ac all day everyday. First was first, I couldn't drive the truck over 100kmh with AC on, put an handmade Aluminium radiator with 1.5litres more capacity in it, it got a little better, second I intercooled the truck (air to air), got much better, third I fit an oil cooler with a sandwich oil plate and mounted it to the front of my bumper, it helped too but still I can't manage to drive it for long distances over 120kmh with AC on and over 35 degrees Celsius, I was thinking about an electric fan because the engine overheated at idle in city use with AC on (talking about 40 degrees or more) and the ventilator didn't blow enough air throw the radiator at idle and the water flow is actually too low to. I'll try the 10 blades fan as you did and I'll be thinking about "smallering" the water pump pulley in order to get more and faster Watter flow through the engine at idle.

[@trolzealot8635]

hola , llegastes a probar con ese ventilador ? , yo estoy actualmente con una prado j90 y con 1kz lo que voy a hacer es poner un electrico antes del radiador y dejar el de aspas oroginal , ademans saque el condensador del aire para no tenerproblemas

[@marcusnordbruch]

@@trolzealot8635 lo primero que hice fue cambiar la polea de la bomba de agua (tambien es la del ventilador) por la del 1kz que es 30% más pequeña en diametro que la polea del 3l. Tambien coloqué el ventilador de 10 paletas y el cambio es increible, te roba unos buenos 10 caballos de potencia pero vale la pena. Ya no tuve problemas de temperatura luego de realizar esas modificaciones. Hay dos clases de embrague viscus para 1kz, por ende hay dos modelos de ventiladores, tenes que fijarte bien cuál es el que le iría a tu embrague viscus..

[@rxiddd]

Hey mate sorry to pull up some old videos. I’m about to refresh my 2lte surfs cooling system. I’ve got the 10 blade fan with new hub, and water pump, but I’m having issues finding the right radiator in aus. Which did you go for? I want as much extra cooling capacity and efficiency as possible. I also ordered a standard 88 deg thermostat, but I’m wondering if I should go for a lower temp one? If so where did you get yours because again I’m struggling to find one haha, cheers mate

[@BVanderHeer]

In your video you mentioned getting rid of the ct20 turbo What’s your replacement turbo of choice

[@boostedbuiltgarage]

I've been working on developing a controller for the electric VNT turbo from the 1kd (ct16v) I have a high flowed one on my bench ready and waiting to go on when I get a chance

[@BVanderHeer]

@@boostedbuiltgarage have you had any reports of putting on a Isuzu dmax turbo ?

[@boostedbuiltgarage]

No, but it would be much the same as other pneumatic VNT turbos. Would work ok. But I want the ultimate with the electronic full adjustability and total control

[@richardbangs4519]

Having the same issues with a ln106r hilux mate converted it to thermo and initially happy until I hit the high way ,,,instant disappointment , new viscous n fan on order, yes mine is turbo and intercooled, I even ordered a new ct20 turbo too ,and injectors to be sure, be a good thing once sorted tho ........i hope up the old girls

[@boostedbuiltgarage]

Yeah I reckon they're a combo of problems... Cooling system too small, turbo/engine inefficiency and not a very good fan/hub to start with too

[@tannyshim3074]

I like ur video , but a 2LTE I totally have no comments about that engine. A 3L or 5L will be a lot better . I personally would go with fully mechanical 5L turbo engine. It does really make a huge difference . Cheers mate

[@aaronailwood4559]

I put a 5L-E/2lte monstrosity in my surf years ago and its done 120000k no probs. However, looks like I'll need an 80 series hub and 10 blade for when the CT turbo gets swapped and boosted to the moon ;); it will have a part from all 4wd toyotas and all generations by the end of its life, if that ever happens.

[@boostedbuiltgarage]

Hahahaha sounds like a good hybrid setup. Tbh I don't think the hub makes much difference apart from the better access and maybe locating the fan a tad further forward. Think most of the gain was the fan blade👌

[@jeremygyles3492]

Be interested in seeing how the 80 fan compares to the 1kz.

[@boostedbuiltgarage]

Yeah I'm hoping I can fit it in, it's a tad bit wider so may not have enough space to the rad😬

[@bradgascoigne58]

Your a legend keep up the good work

[@connorlord8143]

Did the 10 blade fit on the original clutch fan

[@all4runner316]

They directly swap. Ive done it

[@martinkrochta2428]

Have you tried using a higher pressure radiator cap by any chance? Like 1.3 bar or maybe even higher? I'm gonna put a 10 blade fan on my KZN165R and 1.3 bar cap, hopefully it stays below 100°C

[@boostedbuiltgarage]

A higher pressure radiator cap won't help the efficiency of the system. Only raises the boiling point. I've never boiled the coolant or had a problem with that, just trying to make it the best possible I guess. You probably already have a 10 blade fan being kzn165 though?

[@martinkrochta2428]

@@boostedbuiltgarage Nah definitely only 7 blades there haha. I know the kzn185 surfs came with 10 blade fans, dunno about kzn165s. Most of the guys in kzn165 owners group on FB are talking about upgrading to a 10 blade fan or the quikazz fans, but I'm not too keen on paying $650 for a fan.

[@bulldogbrett747]

Fantastic review mate , well done . Cooling is a very interesting topic - I too am in 3 minds in which direction to head next .. I’m in a 105series LC with a turbo charged 1-FZFE engine with 18psi boost. I too have elevated temps at idle with my standard vicious hub & blade ( Bull bar , FMIC , Oil cooler, Winch, Light bars all don’t really help the air flow when stationary .. ha ha ) I have contemplated dual thermos out of a XR6 / XR8 which I could make fit .. also bonnet vents & reverse bonnet scope to try and expel under bonnet temps when stationary .. I like the idea of the 1KZ fan blade … So my question is .. Did you have to modify the 1KZ fan blade bold hole centres to fit the 80 / 105 series vicious hub bolt holes .. or was it a direct fit ? Thanks again for the vid !

[@boostedbuiltgarage]

Yeah I agree, good ventilation out of the engine bay is a big one. I have my hood spaced up a good 25mm at the back acting like a reverse scoop basically. The 10 blade fan fits perfectly on the 80 series hub, yeah. So nice and easy. Thanks Mr Toyota for the Lego-like simplicity for things like this haha In regards to the fan

[@bulldogbrett747]

@@boostedbuiltgarage thanks mate .. that’s me .. I’ll give the 10 blade fan a whirl on the Cruiser , the OD diameter I believe is the same ( I hope ) being 47cm or 470mm ? Funny I rang I few places today .. asking whether the 1KZ 10 blade fan would fit a 80 series vicious hub .. both of them said “ Mar mate Nar Nar won’t fit “ different bolt holes !! I said are you sure they look very similar! .. anyway I’ll grab a blade tomorrow as see how she runs , thanks again

[@seangraffunder1002]

Try a koyo stock radiator mate you’ll be surprised, the heat soak in thicker radiators make it harder to cool as there’s more mass, versus a thinner radiator that dissipates heat quicker and easier, I had a 1kzte hilux and had big issues with cooling when I went bigger tyres fully loaded, tried a thicker radiator and I had even more issues, went and got a new koyo factory replacement radiator and it turns out my initial radiator that was in from new just had a build up of crap making it inefficient to begin with.. just a thought mate, I now have a 80 series with a 1HDFT that’s running a decent wack of boost and power and I had the exact same results, thinner radiator was better

[@thomasbernardoni981]

Or you didn't have enough fan power. A thinner radiator has less mass - will dissipate heat quicker but will also absorb heat quicker. Meaning, up mooney mooney, you'll be stuffed. 80 series radiator is almost 3x bigger than a Hilux radiator of the same vintage, in terms of length and height. Not to mention, you can easily fit a 4 core. Engine capacity is only 1.5 times the size in comparison. An 80 with a 1HDFT was designed for AU, a Surf 1KZ was designed for a much colder (and less 4wd modification prone) Japan.

[@seangraffunder1002]

@@thomasbernardoni981 I do agree with all of the above and that was the original reason why I thought upgrading was the right choice, but those were just my experiences, I wasn’t going to swap fans as I didn’t think I’d taken my build far enough to warrant it, but the 1kz fans do a decent job, I think there was a upgrade people had done with a Mitsubishi fan or something I can’t remember it was ages ago.. I just thought it was interesting that in both of my cars I had the same experience with thicker vs thinner, both had JRP digital gauges so I’d like to think my temps were quite accurate

[@mandrake3696]

Yeh i had the same issue with a Nissan gq tried big alloy radiators and copper 3 cores but the best was a genuine 2 core koyo sorted my issues of long hill climbs towing

[@danielparsons3526]

Put an extra bottle of hub oil in your viscose hub it locks it up sooner.

[@thatsurf1639]

Hey mate, I'm just about to refresh my cooling system on my 1kz surf. Gonna change the fan clutch viscous oil, swap in a 71 degree thermostat and wanna get a 10 blade fan as well. Any chance you could link me the one you bought? Also thanks heaps for the info in this video, it's really helpful! Cheers

[@boostedbuiltgarage]

You may already have the 10 blade fan potentially being a 1kz engine. But I got it from Online auto parts on eBay. Yeah I forgot mention I also have a lower temp thermostat already installed. Think it's high 70s/low 80s from memory

[@danielblue22]

Hit me up if you want to sell the old wiring setup for the thermo. I'm still keen as for an electric setup on my 4Runner.

[@dieseldes6578]

What's your oil temperatures like?

[@boostedbuiltgarage]

Haven't got my oil temp hooked up yet (I've been lazy lol) need to hook up my oil pressure sender too

[@dieseldes6578]

@@boostedbuiltgarage there's always something to do. It may be high oil temperature that's driving high coolant temperature's. I have seen this plenty of times. Replacing an oil to water heat exchanger if your rig has one, with a "proper" oil cooler on a thermostat makes a massive difference to temperatures of both oil and coolant, and your engine will really appreciate it.

[@thomasbernardoni981]

@@dieseldes6578 L series engines already have an oil cooler on the side of the engine, transferring heat from the engine oil to the coolant. An added oil cooler would not do anything extra compared to what a bigger/thicker radiator would

[@dieseldes6578]

@@thomasbernardoni981 Thomas I understand what your saying but from my own tests, albeit on different engines, the removal of this heat exchanger on the oil and coolant circuits allows the 2 systems to operate independently. This means you can fit a suitably sized, thermostatically controlled oil cooler on the oil circuit, offloading that heat from the coolant circuit. This works well in hot climates, or where engines are thermally stressed, but not ideal in cold climates in commuter cars. Just a thought.

[@Allergee25]

Froth the videos mate. Super good info. 👍👍

[@Mango_McPoo]

Thankyou for doing this and recording results! :)

[@richardbangs4519]

Can the 1kz 10 blade fit the 2.8 viscous hub????

[@boostedbuiltgarage]

Yeah they're all the same 4 bolt pattern as far as I'm aware mate

[@richardbangs4519]

@@boostedbuiltgarage if you get a chance could u confirm it for me before I buy one, because i was thinking it may of been a fluke that the 1kz fan fit the 80 hub but if the 80 hub has the same bolt spacing for the fan as the 2L,3L,5L then i will be in luck ,wish i had of watched this vid before buying a Hilux viscous, i like how the 80 offsets closer to the rad in theory that should work better on it's own

[@boostedbuiltgarage]

They all fit, I can bolt either fan to either hub 👌

[@richardbangs4519]

@@boostedbuiltgarage cheers mate thanks for that

[@thomasbernardoni981]

@@richardbangs4519 Late model 5L-E is 10 blade. Not sure if 1KZ fan is the same as 5L. But 5L-E 10 blade fan fits a 3L with the L series hub. 80 series hub may not fit with a 5L-E fan. My 10 blade on the L series hub is close to the radiator, an 80 series hub with the same fan would be way too close for my liking

[@garybishopp7183]

Awesome video mate I'm.running the kzn130 with alloy 3 core rad 10 blade fan and viscous emptied and refilled with 10000cst oil Next upgrade will be a cooler opening thermostat but hoping you do it first so I can check your results Don't have the heat you have here in the UK so I removed my air con radiator for added air flow

[@boostedbuiltgarage]

Yeah I forgot to mention I have a lower opening thermostat already. Around 78⁰c from memory I think.

[@TrumpAndKamila]

Cheers

[@ЕленаРомановна-о9э]

remove the thermostat then there will be no overheating)