{} hi I need to replace my radiator as while drifting fan blade caught it and it’s leaking so wanted to try and get one that isn’t as thick as the one I have on which is about 58mm I’ve scoured the internet but can’t find one anyone managed to to thinner one preferably 50mm Thanks lisa
Might be missing the point, but maybe the question should be 'why did a fan blade actually hit my rad?'
Hi yea I agree me and mechanic went through the reasons ie fan seemed to be bolted on tight with no play, engine didn’t move when rocked though people did suggest when I was at pod drifting solid engine mounts,one side of rad did have bit off movement so would just like to find thinner radiator
Your viscous unit on the fan is shagged. If you rev the engine you'll be able to see the fan flexing. Swap it out for a newer viscous unit or throw on some decent (ie Spal) electric fans. If you don't, all you'll do is slice another radiator. I'm talking from experience here. Solid engine mounts? Nope. Shagged factory engine mounts can sometimes cause and engine to rock excessively and cause the fan to hit the radiator. Solid engine mounts are the opposite of this so definitely not a cause. Why are you wanting a thinner radiator? If it's because you think the fan to radiator clearance is too tight and caused the fan to hit it then that's not right. With a non-shagged viscous unit you won't have a problem with clearance. If it's another reason, and it's an R32 you've got then you can use a CA radiator. The aluminium units are generally 42mm thick. In and out hoses are on the same side and height and width are the same. If it was me i'd be seeing if the radiator you've got at the moment can be fixed and fit a couple of 12" electric fans on the rear and run them off a thermo switch (with an extra override switch for when you're at the track). Then you won't have the worry of the fan slicing the radiator up again. I wouldn't drop down the thickness of the radiator if i could help it, so if it is unfixable then grab another 58mm one and electric fans at the same time. If you wanted to future proof then a cross flow, twin pass 58mm radiator with a couple of 12" Spal fans would be the jam
ive gone through about 4 rads in my ownership of my 32 and the cause to everyone i broke was a broken engine mount. i didn't think they were broken as looked fine and engine didn't move when i tried to rock it. as above, dont drop to a smaller rad. bigger is always better. however i dont agree with electric fans, viscous wins everytime for me.
Viscous wins for cooling capacity, but loses for ability to destroy radiators Good electric fans are fine, but expensive. Cheap ones are horseshit
Hi thanks for your replies, no the radiator can’t be repaired what is a CA radiator ?yes I have r32 gtst rb20det Yea everyone I know that has same car would not do away with there viscous fan also my mechanic who works for Cosworth and works with a lot of high performance engines said viscous is best I hope the viscous unit is ok as I did spot one on a website £358 ouch Want to try and get her sorted soon while the weather still not to bad
CA18 radiator for an S13 The viscous unit in your car right now is your issue. Replace it with another secondhand one if new is too expensive and you're unwilling to go electric. Get one off a NEO RB engine (R34 Skyline, C35 Laurel). 2 or 2.5 are the same. It will be newer so should be less worn. Again, why are you going thinner radiator?
{} {} {} {} {} Hi know it’s been a while but still trying to get replacement radiator,was going to go thinner so I could get fan shroud on as thought this might help stop fan going through radiator again. Anyway at the weekend machanic was going to put back original radiator back on but as we also took off all aircon stuff there is a hole that I think he said was aircon sensor which seems to be lost we are struggling to find a bolt to block the hole anyone know the thread size please Lisa
https://www.driftworks.com/forum/threads/nissan-r32-electric-fan-switches-where-what-size.255520/ I've already answered this. M16 x 1.5 But you persist in ignoring what we've been recommending. Why is that?
Hi Ben cant See where you posted size to me but thanks for the link to this Will also be doing solid engine mounts too hopefully stop this happening again Lisa
I posted it on the other thread i linked. A quick search for "r32 radiator fan switch" came up with it as it's third result Has your Cosworth mechanic checked the engine mounts or just assumed they are shagged? Solid engine mounts are overkill and make the car disgusting to drive. Just get OEM replacement, or something in between like polyurethane Are you going to check the viscous unit on the fan at all? It's piss easy: leave the shroud off and with the engine running, go to the engine bay and slowly build the revs by cracking the throttle body. Watch the blades the whole time. If they start flexing, the viscous unit is junk. If they don't then try a couple of quick blips on the throttle, again checking for blade flex. Like i said, you can get a secondhand item from a later model Skyline that will fit, or you can get a remanufacutred one for the fraction of the price you quoted earlier: https://www.ebay.co.uk/itm/Viscous-...-Skyline-R32-Stagea-260Z-115836-/142487192522 The viscous unit failure fools even qualified mechanics. I had a water pump done by a mechanic 15 years ago on my old Cefiro. Took off and revved the crap out of it and boom: massive hole in the radiator and coolant everywhere. Took it back and mechanic blamed his apprentice for putting a screw driver through the radiator. He put a new radiator in and i thought i was good to go: light rev as i left and same thing happened again, coolant everywhere. This time he revved the engine with the hood up and from 3000 upwards we could see the blades started flexing. By 4000 they were flexing a good 10mm. Changed the viscous unit for another secondhand item and problem solved. It cost that mechanic 2 radiators to learn, and if you don't check yours it will cost you and your Cosworth mechanic another as well
{} {} {} {} {} Hi Everyone hope you all had a good Christmas really want to get skyline back on the road So Ben if you could help was going to order that viscous fan clutch hub that you sent link but took some pictures of mine and they look different please see image Also anyone got a fan blade for r32 Gtst rb20det as not sure if mine is any good Thanks lisa {}
Looks the same to me, just a later design with 2 sets of 4 bolts holes. Grab a gktech replacement fan blade, is more efficient: https://au.gktech.com/sr-ka-rb-vg-high-performance-engine-fan-60-more-air-flow Will need an adaptor for the RB: https://au.gktech.com/rb-vg-clutch-fan-adapter
{} Hi Ben ,happy new year , yea did come across fan blade when doing some research Anyway I’ve ordered new Big radiator ,the fan and adapter, and the viscous fan clutch ,also don’t want to take any chances think I’ll change engine mounts as well, you suggest no to solid engine mounts was wondering what your or anyone Else’s apinion on these engine mounts
