rb20 operating temp? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

roboticnissan · 05-11-2010, 03:17 PM

I installed a water temp guage and put the sensor in thr lower hose. How cold should it be? I know its colder on the bottom than the top

kushlivin · 05-11-2010, 03:20 PM

RB20's normal operating temp is between 170-180 -f
170*f / 77*c Thrilled

180* / 83* Happy

190* / 88* Content

200* / 93* Eek

+* +* Sad

bardabe · 05-11-2010, 03:31 PM

What Kush Said.

Sileighty_85 · 05-11-2010, 04:31 PM

Why do you want to know the temp of the radiator

You need to know what the engine temp is.

roboticnissan · 05-11-2010, 05:55 PM

Quote:

Originally Posted by Sileighty_85

Why do you want to know the temp of the radiator

You need to know what the engine temp is.

There is no engine temp sensor so my best bet is to get my coolant as cold as possible which will bring down engine temps.

All the temps above would be rellevant for the upper hose. I knew those all ready. How cold should my coolant be coming out of the radiator is my question.

roboticnissan · 05-11-2010, 05:25 PM

Double ppost my bad.

Sileighty_85 · 05-11-2010, 06:57 PM

I know i cant be the only one that doesn't understand this logic.

Say that if you get the inlet coolant really cold will not guarantee that it will keep your engine colder. Not to mention the Engine need to be at a certain temp to it will pull fuel or it will run really rich.

If you get an air bubble in the system or the water pump dies then the engine will over heat and you wouldn't know cuz you'll be reading the rad temps.

roboticnissan · 05-11-2010, 07:18 PM

If air gets in the system or the water pump fails water no longer travels thru the radiator. Therefore not getting colder and just absorbing more heat and rising my temp guage. That's all besides the point. I want to know how cool my coolant should be getting when it comes out of the radiator. It goes in at 170 safely so what should it be colling down to?

trickey1991 · 06-14-2012, 11:17 PM

Sorry to bump and old thread

My Car runs about 180-185 on the highway doing around 120km/hr when its like 30 degrees or (86 Fahrenheit) outside.

when its like 25 or 77 Fahrenheit outside my car runs like 170-180 on highway

is this normal?

sometimes when sitting in town at lights etc it will get up to 190 when its 30+ degrees outside and 180ish when its like 20-25 degrees outside.

We are also very humid here.

this normal or?

*fliprayzin240sx* · 06-15-2012, 06:08 PM

I wouldnt really go crazy about it...get a colder thermostat if you want it to run a bit cooler.

05-11-2010, 03:17 PM	#1
roboticnissan Nissanaholic! Join Date: Mar 2007 Location: SOCAL/NORCAL Age: 36 Posts: 1,868 Trader Rating: (12) Feedback Score: 12 reviews	rb20 operating temp? I installed a water temp guage and put the sensor in thr lower hose. How cold should it be? I know its colder on the bottom than the top __________________

05-11-2010, 03:31 PM	#3
bardabe Post Whore! Join Date: Aug 2005 Location: SoCal Age: 35 Posts: 4,719 Trader Rating: (10) Rides Gallery: bardabe Feedback Score: 10 reviews	What Kush Said. __________________ Review Thread

05-11-2010, 04:31 PM	#4
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Why do you want to know the temp of the radiator You need to know what the engine temp is. __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

05-11-2010, 05:25 PM	#6
roboticnissan Nissanaholic! Join Date: Mar 2007 Location: SOCAL/NORCAL Age: 36 Posts: 1,868 Trader Rating: (12) Feedback Score: 12 reviews	Double ppost my bad. __________________ Last edited by roboticnissan; 05-11-2010 at 05:57 PM..

05-11-2010, 06:57 PM	#7
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	I know i cant be the only one that doesn't understand this logic. Say that if you get the inlet coolant really cold will not guarantee that it will keep your engine colder. Not to mention the Engine need to be at a certain temp to it will pull fuel or it will run really rich. If you get an air bubble in the system or the water pump dies then the engine will over heat and you wouldn't know cuz you'll be reading the rad temps. __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

05-11-2010, 07:18 PM	#8
roboticnissan Nissanaholic! Join Date: Mar 2007 Location: SOCAL/NORCAL Age: 36 Posts: 1,868 Trader Rating: (12) Feedback Score: 12 reviews	If air gets in the system or the water pump fails water no longer travels thru the radiator. Therefore not getting colder and just absorbing more heat and rising my temp guage. That's all besides the point. I want to know how cool my coolant should be getting when it comes out of the radiator. It goes in at 170 safely so what should it be colling down to? __________________

06-14-2012, 11:17 PM	#9
trickey1991 Zilvia Junkie Join Date: Oct 2011 Location: Kanada Age: 33 Posts: 518 Trader Rating: (2) Feedback Score: 2 reviews	Sorry to bump and old thread My Car runs about 180-185 on the highway doing around 120km/hr when its like 30 degrees or (86 Fahrenheit) outside. when its like 25 or 77 Fahrenheit outside my car runs like 170-180 on highway is this normal? sometimes when sitting in town at lights etc it will get up to 190 when its 30+ degrees outside and 180ish when its like 20-25 degrees outside. We are also very humid here. this normal or? __________________ 92' R32 GTS-T 355whp

06-15-2012, 06:08 PM	#10
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	I wouldnt really go crazy about it...get a colder thermostat if you want it to run a bit cooler. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!