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Registered:
June 2002
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1JZ Thermostat
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Thu, 05 June 2003 00:30
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Does anyone know what temp the thermostat opens on a 1JZ-GTE.
Thanks
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Location:
sydney
Registered:
May 2003
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Re: 1JZ Thermostat
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Thu, 05 June 2003 06:16
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82 - 95 dude
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Location:
gold coast
Registered:
May 2002
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Re: 1JZ Thermostat
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Thu, 05 June 2003 11:27
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Says 82 on all that i have removed. Get a 72 degree one 1J's run heaps better when you keep them a bit cooler.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1JZ Thermostat
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Thu, 05 June 2003 12:09
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I always thought the 1js were supposed to run at around 90 degrees. I'm not basing this on any sort of fact.. just heresay
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Registered:
June 2002
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Re: 1JZ Thermostat
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Thu, 05 June 2003 21:13
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Thanks for the replies guy's.
Just trying to work out on/off temps for the fan.
Pete: 72 seems really low??
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Location:
gold coast
Registered:
May 2002
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Re: 1JZ Thermostat
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Fri, 06 June 2003 00:19
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The only reason for high thermostats is for emissions. Anything above 70 degrees is warm enough to inhibit engine wear.
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Registered:
June 2002
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Re: 1JZ Thermostat
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Fri, 06 June 2003 03:40
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Thats interesting.
I was going to mention it would make the stock ECU run quite rich wouldn't it.
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Location:
North Sydney
Registered:
May 2002
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Registered:
June 2002
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Re: 1JZ Thermostat
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Sun, 08 June 2003 20:48
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I'm running a 14" slimline electric fan only on a custom 2row aluminium radiator.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1JZ Thermostat
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Mon, 09 June 2003 05:34
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how much did that radiator set you back? I'm turning into a bit of a weight nazi, so if I can save weight relatively cheaply by grabbing a new radiator, I'd love to.
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Registered:
June 2002
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Re: 1JZ Thermostat
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Mon, 09 June 2003 20:44
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It uses a K&J dimpled 2x29mm thick core, 520x360mm.
It's $1000NZ, I also got a price from PWR over in OZ and it was $700AU.
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Location:
newcastle
Registered:
June 2002
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Re: 1JZ Thermostat
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Mon, 09 June 2003 22:01
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pete im sorry but 1j thermostats are 92 degrees .OR SHOULD be im not sure what stampde on them but all teh 1j ive ever seen with a temp gauge open around 92 .
running them below this is not making more power but less .
supra gte is DEAD right i now run the Cressida at 95-100 degrees and and mid range torque has proven on the dyno plus to be ...MUCH fatter .
hotter engines do run better
and yes runing them colder makes them run rich .hot engine cold air ...now your talkin
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1JZ Thermostat
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Tue, 10 June 2003 05:48
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right
there goes the "cheap" bit of what I was hoping for 
still, you get what you pay for
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Registered:
June 2002
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Re: 1JZ Thermostat
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Mon, 23 June 2003 22:13
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FWIW
Tested the thermostat on the weekend.
It started opening at 82 as it has stamped on it.
Was fully open by 92.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1JZ Thermostat
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Tue, 03 May 2005 22:25
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ok, to totally raise an old thread and generally piss everyone off - with stock thermostat, what on/off should I set my thermos to?
I'm thinking on 96, off 92?
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1JZ Thermostat
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Thu, 05 May 2005 02:13
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anyone know the answer?
I have to set mine too. I would be thinking that what Draven said is correct but some confirmation would be good
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Registered:
June 2002
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Re: 1JZ Thermostat
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Thu, 05 May 2005 05:25
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wow, this is from the dead.
I had a 92-88 thermo switch, but it was on a lot of the time with the stock thermostat.
I have put a TRD thermostat in (72d) and it is all sweet.
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Location:
Perth
Registered:
October 2003
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Re: 1JZ Thermostat
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Thu, 05 May 2005 07:57
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From memory my Haltech switches on at 96 off at 91 or 92.
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Location:
sunny coast, qld
Registered:
October 2002
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Re: 1JZ Thermostat
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Thu, 05 May 2005 09:46
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thanks guys
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1JZ Thermostat
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Thu, 05 May 2005 09:50
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well, that was a freakishly good guess from me
thanks for the input duders
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