Best clutch fan combo for 1JZ swapped Supra's?
- Thread starter yhatzee89
- Start date
yhatzee89;1927784 said:Not sure if i could fit a clutch fan in there, what do you guys think?
im running same setup as you I'm kind of interested bc mishimoto fans with rad don;t provide any clearance. But they only flow 2200 cfm which is less then stock but with a mechanical clutch fan you might be back up their.
Hydrofan and koyo radiator. Replaced the stock rubber hose with a SS hose for looks and piece of mind. No issues. Works as if it was made for it...
rakkasan;1927869 said:
Wish i could of kept my hydro but the shroud cracked on 3 of the 4 places and was getting bad so had to do mechanical
i didn't want the headache of electric fan setup
I think Albert has a Koyo Stock style rad with a 2JZGTE Clutch and a GTE blade with a shroud at 722WHP. I think that's the best setup to be honest. I want to do this same setup along with the aux fans onthe shroud wired into my ECU for safety purposes.
Yhatzee89, I'm basically in your situation for this year. My car is my DD and my current fan/radiator setup is simply not cutting it. In the summer once my fans turn on, they stay on until I turn my car off. This gets really annoying cause my idle gets rough, and I'm constantly worrying about temps going too high, so I can never boot it around as much as I want to.
Yhatzee89, I'm basically in your situation for this year. My car is my DD and my current fan/radiator setup is simply not cutting it. In the summer once my fans turn on, they stay on until I turn my car off. This gets really annoying cause my idle gets rough, and I'm constantly worrying about temps going too high, so I can never boot it around as much as I want to.
for some odd reason the DM pre89 jz motor mount brackets didnt gave me enough cleareance for mechanical clutch and fan, ended up with a zirgo 3000cfm no shrouding and I was overheating (bad rad cap) but now that the rest of the cooling system is fixed, the zirgo does it's job (coolant never get higher than 90C)
Mechanical was the way for me... one less place for a potential leak and/or additional moving parts/pumps, electrical to have to provision or worry about.
Electric is a very close next option, as I already have a high-output alternator for some support.
Electric is a very close next option, as I already have a high-output alternator for some support.
What about Cooling Components Fans? They are top notch in the Hotrod world due to their high CFM (2200-2800 cfm for a single fan) and thin (2 5/8" ) fitment. I have heard these in person and they sure throw some serious air! Im probably going to get these myself as Im running a big radiator and its tough with clearance for me
Well I now hate the electric fans since they have killed my battery twice already and always come on after I turn the car off :/
yhatzee89;1938823 said:
That's cause you have it weird wrong I have been using electric fans for years and never killed my battery so check your wiring.
it could also mean a dead short, the connectors that came with my mishimimoto fans were weak I ended up breaking one off after I crimped it while I was installing my intercooler. It might be better for you to buy a thermostat and have them thermostatically controlled instead of on ignition. Personally I just did it to ignition as well and they shut off when my turbo timer stops and all. I like the electric fans, I think their good for city driving when you start and stop lots. The motor fan/clutch fan setups are good if your going to track your car though, more constant airflow at all speeds.
Beals;1938831 said:
I do have the thermostat controlling them, but they are wired direct to the battery so they kick on even after the car has been off for a while. I think I'm going to wire them up to engine running power so it only comes on while actually driving.
I still want to see a pic of this 2J option so I can see if that is the route I wanna go eventually so I can ditch the electrics
you should have them wired to ignition never to battery, this will cause it to constantly draw power. Also if their thermostatically controlled, they should only come on when your thermostat tells them too. But if it was wired to your battery not ignition on a hot day your fans could turn on for "no reason" after you ran it and shut it off because of the constant power. For me it was easier to do it to ignition because of my turbo timer and electrical experience and it was extra for the low temp electronic t-stat.
That's exactly what happens lol, I end up pulling the power wire from the thermostat so it doesn't kill the battery
jesse_rc1991;1940402 said:
That's kinda what this thread is trying to establish
But still yet to see a pic of this setup installed...
MK4 TT Clutch and fan with stock koyo rad. Fits great, zero modification required!!
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The TT fan sits way closer to the radiator than the NA fan due to the depth/offset of the fan mounting tabs.yhatzee89;1941600 said:
TT/NA clutches are the same part number. You do not have a TT fan in that picture otherwise you would not have any room for the shroud and TT's don't sit anywhere near that close to the waterneck.CRsupraiii;1941677 said:
I've experiemented with just about every combo and have found the following results:
2JZ clutch and TT fan:
Only clears stock radiator without a shroud
2JZ clutch and NA fan:
Can be shimmed forward or trimmed to fit a stock radiator and shroud as well as a Mishimoto radiator and shroud if trimmed
LS400 clutch and 7M fan:
Clears stock radiator with shroud and Mishimoto radiator without a shroud
I have also noticed my Chaser fan in my Cressida has a different placement than the NA and TT fans but haven't tested it in my Supra.