Jump to content
SAU Community

Recommended Posts

So as above...my 32 GTRs Clutch Fan is always on...not only does it sound sh1t but it feels like the car has an engine brake on all the time...it must be robbing it of power big time!

So, im interested to know what people have done to overcome this...a new clutch fan is $400 give or take...are any of the other RB series engine fans interchangable???

I was thinkin of going AU thermos, has anyone fitted these to a 32 GTR??? Results?

Throw me some options people.

Cheers.

Link to comment
https://www.sau.com.au/forums/topic/308361-r32-gtr-clutch-fan/
Share on other sites

Sounds like your factory one has seized, so just replace it.

You'll never get the same cooling as a clutch fan, thermo's IMO are pointless for a street car.

If you can't justify $400 on proper and effective cooling for your GTR... you should probably sell it. A $400 part is the least of your worries

Not an issue of justifying proper effective cooling, these are not $100k cars anymore...$400 is $400...if I can get an identical result for $300 then im going with that option, make sense?

As with most things NISSAN being interchangable, I am curious to know whether something like an RB30 fan is similar, if so, its probably cheaper new as it doesnt carry the GTR 'lets jack up the price' stigma....

most of the nissan ones are interchangeable. the height vary;s tho. RB30 ones are much shorter then say an RB20 one, so best bet is to take yours out and go match it up with a new one.

FWIW i run a RB30 R31 clutch hub with rb25 fan on my neo motor and bought the hub new for 80 bucks from motor traders

Thermo fans without shrouding to match your radiator will almost certainly perform less well than a mechanical driven fan.

The thermo-clutch fan is pretty basic in operation. Have you taken it off and inspected it? It may just be a case that there is some crap stopping the bimetallic strip from releasing when it cools down.

rb30 fans are a direct fit to the rb26 hub, they are bigger as well, so more cooling!

no, 30 fans make more noise but dont flow more. they flow the least air and make the most noise of all RB fans. as said just find another RB hub, make sure it mounts in the same spot and bolt it up

Cool, thanks mate, ive just been out and pulled the fan off, metallic strip looks fine but fan is very hard to turn, its not totally siezed but I imagine it should be a lot more free spinning than what it is...thing was seized on the water pump snout real good too!....

Edited by NSNPWR

Ok, what ive discovered so far....

The RB30 hub does not accommodate the 26 fan, the 30 hub is smaller and the bolts do not line up...even if it did fit see below...

The RB30 hub assembly has a shorter snout on it meaning the fan sits closer to the motor, as a result, the fan blades foul on the top radiator hose...

So, what I need is a hub that has a longer snout on it...would like to see pics of RB20 or 25....might even call Nissan tomorrow and price up a 26 hub...Lol...

Any gurus know if its possible for the fan to lock up only once its hot???

Edited by NSNPWR
the RB30 hub has same bolt bolt pattern on both the water pump side and the fan side as RB20/25 so if that doesnt fit then neither will 20/25 one.

Cheers, good to know but its only the length of the shaft/snout that prevented me from using the RB30 fan and hub assembly...I found some 2nd hand 26 hub assemblies on Ebay for $200+ delivered! No guarantee they'll be any better than mine.

Edited by NSNPWR
Never really understood why you would choose thermo's. All that extra wiring, relays installation sounds like a big pain in the bum. Especially if you get 0 or marginal improvement.

well there are lots of reasons why...

they are lighter and thinner

they allow more engine bay room for intercooler piping, thicker radiator, etc

they can be fitted in front or behind the radiator, or you can have a v-mount arrangment

they do not rob the engine of hp

they do not affect the centrifugal force of the engine (if you have modified the blades to clear piping, it be putting uneven strain on the water pump shaft)

they will not get thrown off when your waterpump shaft snaps (see above), totalling your radiator, denting your bonnet, smashing the fan blades

they only come on when needed

they can be running while your car is off and in the pits cooling down

they look neater

they can be made one with the radiator.. removal is as easy as disconnecting the wires and removing the whole get up.

the wiring is not difficult at all

they give you one extra gizzmo to play with if you get a fan controller

you think that installing relays and wiring is a pain... i think constantly undoing the engine fan to get the radiator and shroud out, water pump, timing cover etc. is a massive pain in the knuckles and forearms.. not to mention rounding off the 10mm nuts that have to be done up tight so the fan doesnt fly off, or bending the 6mm studs by levering against them to undo the tight 10mm nuts.

to say that thermo fans do not work as effective as the engine fan is a bit ridiculous.. 70% of the cars these days use thermofans.. all fwds do, wrxs, evos, commodores, falcons, lots of euro cars do etc.. they work just as good at cooling as any engine fan.. without the power robbing.

i have a very good complete fan with good clutch pm me if you want it.. i will be going the thermo route for the reasons above.

cheers

Linton

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • OK, Step 3, if you need to remove the valve body, either to replace it, the TCM, or to do a more complete drain.  First, you need to disconnect the TCM input wires, they are about half way up the transmission on the drivers side. One plug and the wires are out of the way, but there is also a spring clip that stops the socket from sliding back into the transmission. On my car the spring clip was easy to get, but the socket was really stuck in the o-ring of the transmission housing and took some.....persuasion. You can see both the plug to remove (first) and the spring clip (second) in this pic Incidentally, right next to the plug, you can see where the casting has allowance for a dispstick/filler which Nissan decided not to provide. there is a cap held on with a 6mm head bolt that you can remove to overfill it (AMS recommend a 1.5l overfill). Final step before the big mess, remove the speed sensor that is clipped to the valve body at the rear of the box.  Then removal of the Valve Body. For this the USDM Q50 workshop manual has a critical diagram: There are a billion bolts visible. Almost all of them do not need to be removed, just the 14 shown on the diagram. Even so, I both removed one extra, and didn't check which length bolt came from which location (more on that later....). Again it is worth undoing the 4 corners first, but leaving them a couple of turns in to hold the unit up....gravity is not your friend here and trans oil will be going everywhere. Once the corners are loose but still in remove all the other 10 bolts, then hold the valve body up with 1 hand while removing the final 4. Then, everything just comes free easily, or like in my case you start swearing because that plug is stuck in the casing. Done, the valve body and TCM are out
    • OK, so if you are either going for the bigger fluid change or are changing the valve body which includes the Transmission Control Module (TCM), first you should have both a new gasket 31397-1XJ0A and a torque wrench that can work down to 8Nm (very low, probably a 1/4 drive one). You can probably get by without either, but I really didn't want to pull it all apart together due to a leak. First, you now need that big oil pan. The transmission pan is 450 long x 350 wide, and it will probably leak on all sides, so get ready for a mess. There are 24x 6mm headed bolts holding the pan on. I undid the 2 rear corners, then screwed those bolts back in a couple of turns to let the pan go low at that end, then removed all the middle bolts on each side. Then, undo the front corner bolts slowly while holding the pan up, and 80% of the fluid will head out the rear. From there, remove the remaining bolts and the pan is off. You can see it is still dripping oil absolutely everywhere...it dripped all night.... I got another couple of litres when I removed the pan, and then another few when I removed the valve body - all up another 4l on top of the 3 already dropped in step 1.
    • Yeh I think i'll message an old contact i had for ages that manages his own tyre shop now.. n tell him what i want n work with him before ordering..  Got this 17x9 +30 Driftteks on 245/45/17 PSR Drag Radials on the rear.. They fit well - for your reference in future - Rear guards  have been lipped in & minimal to non flaring of the rear Gaurds.    
    • If only it were that easy! I also needed to remove seats, shocks, brake calipers, send my car through a fence, and use measuring and ended up guessing because I didn't remove seats, shocks and brake calipers. It can be hard sometimes Can be a little more complex than 'just measure' if you want to truly measure the entire wheel through all of it's suspension travel. But if you aren't going for every last mm then yeah, you can check the space you currently have and guesstimate.
    • If you own a car, and it has wheels on it, and you know the offset of those wheels, and you have a measuring device, you have everything you need to work out if other wheels will fit.
×
×
  • Create New...