Jump to content
SAU Community

Recommended Posts

Hey guys,

Just realised that i do not have a thermo fan however i do have the plugs for it. I have a r33 Gts4 which i have recently dropped in a stagea motor and am just concerned about the heat of the engine. Does this model not come with a factory thermo fan or has someone most likely removed it for some reason.

Thanks.

Link to comment
https://www.sau.com.au/forums/topic/313986-thermo-fan-missing/
Share on other sites

as long as you have the clutch fan that is all that matters. the thermo fan on the front of the engine was an over temp fan, designed to come on when the engine temp got too hot. most cars that are missing them have been in front end crashed where the fan was damaged and not replaced (well that is my theory as it is why my car was missing it when i got it).

The front thermo fan also helps with A/C in traffic and those really hot summer days.

I recommend getting one just as "insurance" against overheating (I noticed you live in Adelaide and temps there get pretty hot).

Not sure about R33s - but reading the genuine R34 brochure - the RB20DE NEO engines did not have termo fans - quite odd - but then again Japan doesn't get into 30s and 40s.

All RB25DE and RB25DET - Had thermo fans.

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

    • From the pictures I have when doing the job the flywheel is the same diameter, I don't think they're playing weird tricks like putting weights at the outer diameter to increase flywheel inertia or anything like that. The OEM flywheel is definitely heavier, but it's not a huge difference. Quoted weight savings of the clutch is 2 kg so I can't imagine the flywheel being lighter than ~7 kg. Kind of regret not weighing it before the clutch went into the car but as far as driveability goes I have no complaints.
    • HKS trigger kit should be very easy to integrate with a Link. It's a 36-2 crank trigger. Hard part is finding the motivation to take off the timing belt and everything on the front of the engine to install it. You also need to cut out a hole in the oil pump housing so the sensor can read the trigger wheel. Changing out the cam sensor for a 24 tooth setup is probably good enough but as others have mentioned depending on what underlying assumptions are changed it becomes more of a problem. Reading the crank state off of the cam is an abstraction that works in the general case, but if you have an edge case it makes less and less sense. There is a GTX2860 gen 2 that can take a compact 5 bolt housing so it's direct bolt on but I'm not 100% sure of what's involved. Peak compressor efficiency drops off a bit on these turbos vs -5s, 77% vs 73% but you get way, way wider region of operation. The -5s have a really strange surge line in their compressor map that is all over the place. If you think the hot side on the -5s aren't open enough you can try the Tomei T550B turbos which a local tuner seems to be happy with:
    • i need a complete tail light for my R33 GTR if you have please let me know.
    • I need a great maintenance workshop around Idaho, if you know one please let me know..
    • Hello friends, i have a good friend in Canada that looking for a good condition 1993 GTR around him please if one or know someone around you that is willing to let it go please let me know so that i can inform him.....Thanks
×
×
  • Create New...