1G-GZE Running Hot

[infotechplus]

How hot should these buggers run?

After 10 minutes of driving the water temperature gauge is reading high 80s deg C.

I have an Nissan S13 radiator (slim but wide) and one 20cm thermo fan running nearly all the time (manual switch ATM) on the inside pulling air through.

Checked the thermostat - opens right on cue at 88 deg C.

Should I try and fit a bigger fan, maybe on the outside pushing air through?

Are these engines prone to overheating? Do they normally run hot?

Any ideas?

Cheers,

Peter

[JustCallMeOrlando]

....whats wrong with it being high 80's if it has an 88 degree thermostat...I'm confused.

My setup uses an 82 degree thermostat and sits between 82 and 84 degrees.

[2jzhilux]

i dont think high 80s is that hot
most cars these days run around a 92 degree thermostat
and you can get up to 98 degrees and be ok
100 degrees is not boiling point in a pressurized system i think its about 110 degrees
you could also try putting on a higher pressure cap(raise boiling point)

[infotechplus]

....whats wrong with it being high 80's if it has an 88 degree thermostat...I'm confused.

My setup uses an 82 degree thermostat and sits between 82 and 84 degrees.

Now that you say that I'm embarrassed at being so stupid.

Obviously 90 deg is reasonable as long as it doesn't go any higher. I'm concerned however that when I hook up my trailer and racecar it's not going to cope.

Might look at a larger thermo anyway.

Thanks,

Cheers

Peter

[infotechplus]

i dont think high 80s is that hot
most cars these days run around a 92 degree thermostat
and you can get up to 98 degrees and be ok
100 degrees is not boiling point in a pressurized system i think its about 110 degrees
you could also try putting on a higher pressure cap(raise boiling point)

Checked my cap and it's one of those 0.98 [bar?] ones. Is that okay?

It did get up over 110 deg C on the dyno at the Emissions Centre earlier in the week. We had to wait for it to cool down.

Cheers,

Peter

[IN 05 NT]

a single 10" thermofan wont do its job too well,

it probebly only covers 1/3 of the rad? definately double it up or go for one large one and get a thermo control switch, $80 from repco for an adjustable one,

[2jzhilux]

you can also get a 1.1 bar cap
i think they are from a vcv10 camry

[JustCallMeOrlando]

Now that you say that I'm embarrassed at being so stupid.

Bah! Making you feel stupid is the LAST thing I wanna do!

I'm with the rest of them though. For any serious work, I'd probably look at getting a larger thermo and making a proper shroud for it. They work soooo much better with a shroud.

[2jzhilux]

is it possible to fit some ef /au falcon themos in there they are meant to be awesome for cooling

[infotechplus]

OK. Thanks for your input guys.

I'll chase up the Camry radiator cap, the Falcon thermos and the idea of making up some sort of shroud, possibly with alumnium if I can't find something more suitable (readymade).

Cheers,

Peter

[infotechplus]

is it possible to fit some ef /au falcon themos in there they are meant to be awesome for cooling

If I go out to Pick'n'Payless on the weekend and see some EF/AU thermo fan/s, do I just grab the fans or should I also track down any wiring/switches/etc? Or do I just use aftermarket switches or even leave my manual switch?

Cheers,

Peter

[IN 05 NT]

you just want the fan assy, unoplug them, rip the unit out,

all cars use a themo switch of sum sort, usually mounted in the motor or radiator, and will be a correct fit for that motor,....ie a 86' degree on, 82' degree off.... depends on what car its for....

best bet is to get an ADJUSTABLE thermo switch control, such as a davies craig unit,

fit it all up, grab a multimetre, (with a heat probe) plop that in the radiator cap/fill point, wait till you get to say 84'degrees, and set the thermo fan to switch on at that point,

what will then happen is everytime you hit 84'degrees the thermo will autmatically cut in and out,

[IN 05 NT]

Part. 0401, Thermatic Fan Switch
Installation Instructions | Where to buy



Mechanical Thermal Switch

The Mechanical Thermal Switch is adjustable from 40°C - 100°C. The Thermal Switch is mounted next to the radiator and the copper probe is mounted inside the radiator hose. The Thermal Switch is then connected to the ignition circuit for operation. The Thermal Switch & Relay Kit enables a fan to operate both thermally and also when the air conditioning is running.
ALL KITS CONTAIN:

Thermal Switch
Mounting Bracket
Length of wire
Connectors
Rubber Seal

taken from here

http://www.daviescraig.com.au/main/display.asp?pid=1

that should have all the revelant info you need on the switching issue,

gluck.