Water-Temp Sensor

mk112288 · 04-01-2007, 09:34 PM

I am going to be installing some Defi gauges and I am wondering where I can stick the water temp sensor besides cutting the radiator hose and installing a T-fitting. Is there any galley plug on the block, similar to the oil plug underneath the intercooler?

Thanks,
Mark

will12345 · 04-01-2007, 11:19 PM

it might seem like a pita to pull of the lower hose and cut and place a temp sensor but really isnt. you want to place the sensor where the coolant is the hottest and thats when it comes straight out the bottom. theres plenty of lines running around, but thats where you will see the hottest temps just before it enters the radiator

mk112288 · 04-02-2007, 12:18 AM

Quote:

Originally Posted by willgroup5motorsport

it might seem like a pita to pull of the lower hose and cut and place a temp sensor but really isnt. you want to place the sensor where the coolant is the hottest and thats when it comes straight out the bottom. theres plenty of lines running around, but thats where you will see the hottest temps just before it enters the radiator

Don't you mean upper radiator hose? Isnt that the one coming off the motor then then going back to the motor on the lower hose?

-Mark

mk112288 · 04-02-2007, 07:01 PM

Anybody?

4banger · 04-02-2007, 08:31 PM

You could also use the line coming off of the expansion tank that goes to the turbo.

NallanRex · 04-02-2007, 08:45 PM

Quote:

Originally Posted by mk112288

Don't you mean upper radiator hose? Isnt that the one coming off the motor then then going back to the motor on the lower hose?

-Mark

I thought the upper rad house is where it goes back into the engine because of the way the thermostat is. For the coolant to push on the thermostat and open it, the coolant has to flow from the rad to the engine through the upper rad hose.

All the cooling systems ive seen have been set up this way.

(I haven't seen the one on a subaru but im assuming its the same on all vehicles, but I may be wrong.

)

will12345 · 04-03-2007, 05:15 PM

thats right, it comes out of the top cooler and runs to the thermostat. thats why if the temp of the fluid is to hot, the fans come on. so the hotter fluid is coming from the bottom

ALi · 08-11-2007, 06:21 PM

Could you rephrase it? The thermostat is in the top coolant hose (not in the bottom one)?

MKTURBO · 08-11-2007, 06:45 PM

ugggg! the coolant comes out of the block via the bottom radiator hose....then travels through the radiator and up throught the radiator hose.....wherer the radiator hose connects back to the block thier is a big nipple or pipe where the hose connects to (where you radiator hose clamps are) housed inside this thier is something called a thermostat.....a valve opens when the coolant reaches the proper tempature......i believe thats how it works but someone correct me if im wrong

***snorky*** · 08-11-2007, 06:55 PM

mk you are correct about the flow. the thermostat is in the outlet side. i should know this, i installed my zerosports t-stat. thanks 4banger.

4banger · 08-12-2007, 06:06 AM

Negative, the thermostat is where the bottom hose connects to the block.

wakeboarder81 · 08-15-2007, 06:13 AM

Sounds like either way, you still want to install your fitting for the sensor in the bottom hose

04-01-2007, 09:34 PM	#1
mk112288 Junior STI Driver Car: 2006 STI (SGM w/ sil Fav Mod: Cobb Stage II Location: South Bay Area, Californi Posts: 141 Join Date: Nov 2005 Trader Rating: (0)	Water-Temp Sensor I am going to be installing some Defi gauges and I am wondering where I can stick the water temp sensor besides cutting the radiator hose and installing a T-fitting. Is there any galley plug on the block, similar to the oil plug underneath the intercooler? Thanks, Mark This ad is not endorsed by this member. Please register or login to hide this ad.

08-11-2007, 06:21 PM	#8
ALi STI Driver Car: 2004 Australian Vers Location: Negara Brunei Darussalam Posts: 292 Join Date: Dec 2004 Trader Rating: (0)	Re: Water-Temp Sensor Could you rephrase it? The thermostat is in the top coolant hose (not in the bottom one)?

08-11-2007, 06:45 PM	#9
MKTURBO Is Scared Of Kevin... Car: 2007 WRX STI Limited Fav Mod: APS Catless R1 TurboBack Exhaust Posts: 2,977 Join Date: Nov 2006 Trader Rating: (5)	Re: Water-Temp Sensor ugggg! the coolant comes out of the block via the bottom radiator hose....then travels through the radiator and up throught the radiator hose.....wherer the radiator hose connects back to the block thier is a big nipple or pipe where the hose connects to (where you radiator hose clamps are) housed inside this thier is something called a thermostat.....a valve opens when the coolant reaches the proper tempature......i believe thats how it works but someone correct me if im wrong

08-11-2007, 06:55 PM	#10
*snorky* If in doubt, flat out Car: 32J GDFDYEH Fav Mod: Fullerton's Qrack on my car Location: Chicagoland Posts: 3,773 Join Date: Apr 2006 Trader Rating: (23)	Re: Water-Temp Sensor mk you are correct about the flow. the thermostat is in the outlet side. i should know this, i installed my zerosports t-stat. thanks 4banger. Last edited by snorky : 08-12-2007 at 09:58 AM.

08-12-2007, 06:06 AM	#11
4banger Professional STI Racer Car: 05 WRB STi Fav Mod: TiC AST's - 7/6K Location: Chesapeake, VA Posts: 625 Join Date: Feb 2005 Trader Rating: (3)	Re: Water-Temp Sensor Negative, the thermostat is where the bottom hose connects to the block.

04-01-2007, 11:19 PM	#2
will12345 Senior STI Driver Car: 04 subaru sti Fav Mod: 35r turbo kit Location: sunny san diego Posts: 317 Join Date: Apr 2007 Trader Rating: (1)	it might seem like a pita to pull of the lower hose and cut and place a temp sensor but really isnt. you want to place the sensor where the coolant is the hottest and thats when it comes straight out the bottom. theres plenty of lines running around, but thats where you will see the hottest temps just before it enters the radiator

04-02-2007, 07:01 PM	#4
mk112288 Junior STI Driver Car: 2006 STI (SGM w/ sil Fav Mod: Cobb Stage II Location: South Bay Area, Californi Posts: 141 Join Date: Nov 2005 Trader Rating: (0)	Anybody?

04-02-2007, 08:31 PM	#5
4banger Professional STI Racer Car: 05 WRB STi Fav Mod: TiC AST's - 7/6K Location: Chesapeake, VA Posts: 625 Join Date: Feb 2005 Trader Rating: (3)	You could also use the line coming off of the expansion tank that goes to the turbo.

04-03-2007, 05:15 PM	#7
will12345 Senior STI Driver Car: 04 subaru sti Fav Mod: 35r turbo kit Location: sunny san diego Posts: 317 Join Date: Apr 2007 Trader Rating: (1)	thats right, it comes out of the top cooler and runs to the thermostat. thats why if the temp of the fluid is to hot, the fans come on. so the hotter fluid is coming from the bottom

08-15-2007, 06:13 AM	#12
wakeboarder81 Junior STI Driver Car: 05 aspen white Fav Mod: element gt52 Location: spokanistan Posts: 124 Join Date: Apr 2007 Trader Rating: (0)	Re: Water-Temp Sensor Sounds like either way, you still want to install your fitting for the sensor in the bottom hose This ad is not endorsed by this member. Please register or login to hide this ad.