Kouki

Actually that is a very common but very wrong thought. The fan may appear to always be on but most of the time it is not. Why is it called a clutch fan??? Think about it. It has a mechanical type clutch with a coiled spring in it that reacts to the temp. When the temp rises the metal expands clamping the coil to hold tight on the fan and engages it, when it is cool the metal contracts losing its grip and allows it to slip. When the engine is running regardless of if the fan is engaged or not it will still spin, but when it is not engaged the fan only spins as an effect of the basic laws of motion. When it is cool and spinning slowly(not engaged) you could, BUT I DO NOT RECOMMEND IT, grab the fan and stop it or even spin it the other way. I'm totally not biased I actually have an e-fan on my car, but the clutch fan does work great! I only switched because I needed the extra clearance with the radiator I'm using and the stock fan would have been in the way and hit the radiator. Either fan will efficiently cool your engine as long as you have proper ducting/shroud and not a pile of shit e-fan, make sure you get something decent. But as far as flow rate, it's very hard to beat the stock clutch fan and shroud.

ctm_motortrends

My car has 414 Hp on a dyno I am running dual FAL fan never have I had a problem with it. I race the car Drift the car and drive the car on the street in traffic and it always runs cool. This is the best fan for the moeny also fits great on a Koyo and looks sexy with a sr20det. Heres where I got it from.

http://phase2motorsports.stores.yaho...l210elfan.html

McRussellPants

FAL slims are notorious for overheating at speed.

They're designed stupid so the shroud causes a high pressure zone behind the radiator at high speed.

clutch fan or bust, I had one blow up too. it was because I put it on wrong, I wager that eveyone else whos had a fan blow up put it on wrong too.

JDMClifford

i never said i drove the car with a broken waterpump. i replased it. im not retarted. and what! you dont need a fan after 35 mph, unless you are drifting i guess. but i dont drift so i dont care. and thats all i have to say about that dumbass post reply

wait i have to add something, if clutch fans are so great why doesnt nascar use them? they use 16" metal electric fans. and lemans cars... guess what electric fans...also if clutch fans are so great why do most new cars use electric fans? they are not cheaper so make. go to a dealership and look at all the electric fans and shrouds. im not saying clutch fans suck. they work great. but there is a reason cars are using electric fans.

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Parking lot pimping

Kouki

Well you are right, most newer cars use e-fans. Why is that you ask? Well it is because most newer cars are FWD and the engine sits sideways in the engine bay. Therefore the use of a clutch fan wouldn't work. Go look at any of the new pick-ups, what type of fan do they use? Well they use clutch fans. Especially the diesel trucks. Why is that, well diesel trucks need very good cooling, they have huge radiators and huge intercoolers. The only way they can get the flow they need is by running a huge clutch fan with a good shroud.

ixfxi

hey buddy, you do realize that the main reason your car is running cold, is not the fans.

i can spray your car with a giant binaca-blast of ice and still, the reason your car is running colder is because of one thing: lower temperature thermostat. really, i mean really.. is there a reason why everyone has to say nismo? like when people say "i have a NISMO thermostat.. or a NISMO radiator cap" i mean, the radiator cap is practically useless.. no one benefits from it really. and the lower temp thermostat keeps the car cool why? because its fucking fully open most of the time.

last, get a real water temp gauge for chrissake. whats this bullshit about "yeah my car used to go above the "2" level of my rpm gauge. How about, my car runs at 190 degrees.. where it SHOULD BE.

i mean, celcius is cool too.. but lets realize one thing guys, we're in fuckin AMERICA. save your yen, euros, and celcius for overseas. AMERICA BABY.... where STANDARD TOOLS .................... suck. :-)

ixfxi

thank you for the lesson, most of us here should atleast, know how a clutch fan works.

if you want to prove your point, i suggest reaching-in and grabbing the fan while the car is running, to demonstrate for us how little resistance the fan actually has while spinning. it must be my imagination everytime i hear a 240sx sounding like a Bissell Vacuum cleaner when its being floored.

i mean, you already admitted that you switched over to the side of winners and have an electric fan... why do people still mention clutch fans? because they suck, thats why.

clutch fans suck, period. they're for weaksauce drivers like mcrusselll panties... because hes a woman, with a small brain.

really, its science.

McRussellPants

I'm not the one blabbering on about how you blew your motor from ovreheating it because you put a clutch fan on wrong.

You realize stock cars overheat when the don't run in free air for more than like a minute right?

Because theres no possible way to run electric? unless you wanted your clutch fan chomping the ground and the radiator to be the back of the drivers seat?


Packaging restraints?


hahahahahaha.


E-fans are the worst mod ever if your radiator is in the stock location.

aznpoopy

haha yep. if you put the fan on backwards the fan clutch and the fan itself don't like it very much.

my clutch actually split in half right down the middle, taking out most of the fan shroud. needless to say i haven't made that mistake again.

rj240sx

Please enlighten me, how the hell do you put a clutch fan on backwards????

nrg

um.. listen buddy. with the e-fan; i had the same greddy rad and nismo thermostat. I take that same freeway everyday to work. I always look at the temp gauge at that same location. It was a comparision from my e-fan to the clutch fan.

thanks for explaining to me how the nismo thermostat works. :P

btw, high pressure radiator cap are not useless. They're designed to open at certin PSI to grab more coolant. There's a reason why stock KA runs .07 bar cap while the stock sr20 runs .09 bar; the skyline stock rad runs 1.4bar oem cap. nismo is at 1.4bar too. It's all about balance when you mod your car; small changes effect others.

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driftingisgay.com

DJ_Sunrise

if im not mistaken, the SR radiators cool much better than ka radiators. my setup includes sr radiator, 50/50 coolant mix, oem clutch fan and shroud, and gp sports radiator cooling panel. s14 sr boosting at 12 psi. <-- surprised no one brought these factors, or cooling panels up yet. excluding last summer which reached 100F ambient in NJ, regular to spirited running water temp on my motor is 75-82C. autox ive seen 86ish? never more.. looking at D1 silvias, and other well worked shop cars.. lots of jdm tuners keep the stock radiator, stock shroud and clutch fan. if its good enough for them, its good enough for me. if i upgrade the radiator, ill be upgrading for the bling factor more than anything...

-Bart

oh yea.. have you noticed which isle all the honda ricers shop in? big ass decals, mufflers, shopping cart wings, 14" plastic spinners, ELECTRIC FANS. all in the same isle at your favorite pepboys or autozone location. wow. what a coincidence.

to each his own. both setups work well. it just so happens that my oem shit didnt cost me any money, but runs perfectly fine.

oh btw.. the reason most OEM is now using e-fans is because fan operation shows up during diagnostic scans. OEM gets a better idea of what douche bags are doing to their cars. kinda like BMW.. check engine light comes on at 150mph, and you loose your warranty. shit like that. or toyota sienna drivers who like to change their oil every 20k miles.. anyone familiar with GEL motors?

240DriftKid

haha i remeber i put my fan on backwords...

McRussellPants

yeah, I dunno about putting it on backwards, that would be pretty intense.


I just tightened one side too much too soon and it got wedged on at an angle, screws backed out, shit got wacky.

CKAMC

DJ_Sunrise: OEM looking radiators yes... you should take a good look as you will find quite a few yashio and other oem looking radiators(take a look, see how many have metal tanks, and none of that plastic crap).

yes most of them do run clutch fan out there, should see some of the spacing idea's they use (closing in the gap between the shroud and fan to make the space tighter than what it is).

The key still is shrouding, if you want to see the gains from using an electric fans then do it correctly. If you want reliability, then SERVICE your clutch fun.

I really should do some scans... but I am lazy(and no one seems to want/care), need to find a review on cheap vs expensive radiators... I am sure there are better designs than koyo at a reasonable price.

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McRussellPants

GTR fan is an improvement.


also people cut the top with a vented hood.


if i wasn't broke and I actually cared I'd get the bottom shroud peice that no one has.

Gnnr

That probably has a lot do with why my engine bay being so dirty. Haha.

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nrg

um.. some cars have e-fans because they dont heat up as much. I've played with many cars and the sr20 runs the hottest out of any b/d/h/k series honda motors i've seen.

toyota sienna changes oil very 7-10k miles i believe. Same goes for my parent's 06 honda odyssey. Do you know that the factory oil change for newer BMW is around 15k?

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driftingisgay.com

DJ_Sunrise

sienna's change every 5k, the point is people are idiots, and OEM designs cars around those fucktards.. its funny how many new motors come back as GEL cuz people think they can drive their cars for 2 yrs without an oil change.. *sigh*

-Bart

Gnnr

Correct me if I'm wrong, but its my understanding that Honda motors having and open deck design allow them to run cooler. Is that right?

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nrg

HA HA HA.. You A Winner.

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driftingisgay.com

CKAMC

ok calling an sr hotter than most other engines is a real broad "apples to oranges statement"

ok will post up a scan now with that statement being said.

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Gnnr

Uhh, just asking a question. I remember reading something to that effect somewhere.

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aznpoopy

it's quite easy. it's only meant to spin in one direction, but you can flip the faces and it still fits. i was installing it in the dark with no lighting trying to slap shit together as fast as possible. dumb mistake. it actually lasted for a few months like that.

the fan clutch actually split in half, dumping the viscous fluid everywhere. the fan itself destroyed the shroud and bits and pieces of everything were dragged along the ground for a block or two. all kinds of crazy noises were heard. some decent sized chunks were ripped out of the fan itself, but it survived. i'm actually still using it. O_o

240DriftKid

yah when i did it and when i was like WOT the belt would screech the fan was rubbing a lil. i even told myself okay i better not put this back on the wrong way and i still ended up putting it backwards. but yah i guess my fan clutch i got from autozone was defective cuz it was leaking fluid. i returned it and got it right now. this was awhile ago tho...