E- Fan Temp Switch - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

brian. · 04-21-2008, 11:23 AM

i am looking to install an electric fan in place of the oem fan. i am currently looking at a few kits from summit. i would rather use a thread in sensor, rather than the probe that gets put in the radiator (between the fins) but did not know where to put it. I would prefer to not "splice" a piece of pipe with a threaded bung into a radiator hose, and WOULD like to use an existing threaded hole if possible. i believe the sensor comes with a sensor that is 1/8 npt. if anyone has a pic, or knows where i can hook this sensor to, i would appreciate it.

also i plan on setting the fan to run at 180, and shut off at 170. lmk what you think.

CAR: 1995 240sx (base), stock for now, plan on boosting. (have all parts, but want to get a few supporting things done 1st.)

Brian.

jhec23 · 04-21-2008, 01:37 PM

You can get the temp switch with the 1/2 fitting and put it on the coolant hose going to the heater or intake.

zylvia213 · 04-21-2008, 07:29 PM

Im running flex-a-lite fans on my s13 SR. I used temp sensor from stock s13 KA motor and got 2 BOSCH alarm relays. Fans kick in at about 180-190. Works great

johngriff · 04-21-2008, 07:30 PM

Quote:

Originally Posted by zylvia213

Im running flex-a-lite fans on my s13 SR. I used temp sensor from stock s13 KA motor and got 2 BOSCH alarm relays. Fans kick in at about 180-190. Works great

Have a diagram for this? Sounds cool!

*DALAZ_68* · 04-21-2008, 08:16 PM

Quote:

Originally Posted by zylvia213

Im running flex-a-lite fans on my s13 SR. I used temp sensor from stock s13 KA motor and got 2 BOSCH alarm relays. Fans kick in at about 180-190. Works great

u might wanna add that is only comes in the SOHC models on the lower radiator hose

LA_phantom_240 · 04-21-2008, 08:24 PM

Quote:

Originally Posted by brian.

i would rather use a thread in sensor, rather than the probe that gets put in the radiator (between the fins) but did not know where to put it.

Good call. They don't work. Trust me on this one.

*NemeGuero* · 04-21-2008, 08:24 PM

You can use the ECU water temp sensor.
At least its what I'm using for my Greddy MSS.

undesiredshoe · 04-21-2008, 08:42 PM

Quote:

Originally Posted by LA_phantom_240

Good call. They don't work. Trust me on this one.

Well trust me, they work. At least maybe it works in my miracle car. Switch on temp is kinda high though, 200+ iirc. But luckily, I have a free fan controller that im going to be using soon, oh yea, its "stock" too.

LA_phantom_240 · 04-21-2008, 08:43 PM

Quote:

Originally Posted by undesiredshoe

Well trust me, they work. At least maybe it works in my miracle car. Switch on temp is kinda high though, 200+ iirc. But luckily, I have a free fan controller that im going to be using soon, oh yea, its "stock" too.

...tell that to my headgasket.

chituntang · 04-21-2008, 08:52 PM

Well, I have those too, but the catch is I can adjust when it comes on, so it is fine. It sounds more like your fan is not kicking on at the right temp. It is not as good as it is not taking water temp, but the rad. temp. So I will switch my controller later. But right now it works wonderfully.

*DALAZ_68* · 04-21-2008, 09:03 PM

Quote:

Originally Posted by LA_phantom_240

Good call. They don't work. Trust me on this one.

agreed...if its got cold air hitting it between the fins...its not getting a proper core temperature from within...

getting something that withing is a lot better.

tgd89 · 04-22-2008, 01:36 AM

Actually the rad probe on my derale fan controller just died after maybe a month or two of use. Use a thread in one, it worked ok but couldn't of been too accurate.

brian. · 04-22-2008, 08:14 AM

so for those of you using the thread in, where are you putting it??

Thanks for all the replys.

projectRDM · 04-22-2008, 08:35 AM

The 'best' method I've found is to buy a Pivot fan controller. There's two models, one comes with a sender that you can put into the inlet neck on the manifold, just drill/tap behind the OE senders, the other model ties into the OE sender and reads it from there. There's some confusion when you order one since most places aren't very thorough in their description and you may get either model, but it does the job, is programmable, and includes a water temp display so you can ditch the OE gauge completely.

*NemeGuero* · 04-22-2008, 09:41 AM

Quote:

Originally Posted by projectRDM

The 'best' method I've found is to buy a Pivot fan controller. There's two models, one comes with a sender that you can put into the inlet neck on the manifold, just drill/tap behind the OE senders, the other model ties into the OE sender and reads it from there. There's some confusion when you order one since most places aren't very thorough in their description and you may get either model, but it does the job, is programmable, and includes a water temp display so you can ditch the OE gauge completely.

Yah, the greddy MSS ties into the OE sender from the ECU and also has a digital display.

AND its 2 stage which works great for altima fans.

Only thing that could make it more perfect is a manual bypass in case some shit goes bad but if you're smart enough with wiring you can do that anyway.

japslapsilvia · 04-22-2008, 09:53 AM

my 2 favorite methods, is to eithor use Greddy MSS, which i have, it uses the stock CTS signal, or use a lower radiator hose adapter, and sensor from SOHC, this is the cheapest option...use it with a 30A relay and 10amp fuse....

really simple wiring...12+ (constant or ign+ doesnt matter) to fan, via fuse
12+ to #85 on relay
ground to 86
wire from 87 to neg side of fan
wire 30 to one side of the sensor, and ground the other side.
i believe that this is correct for the wiring cant really remember off the top of my head...someone correct me if i am wrong.

bigOdom1 · 04-22-2008, 10:21 AM

tap the water neck slap an autometer gauge in and call it a day

*NemeGuero* · 04-22-2008, 12:08 PM

Quote:

Originally Posted by bigOdom1

tap the water neck slap an autometer gauge in and call it a day

Thats not a temp switch, thats a temp gauge. Retard.

LA_phantom_240 · 04-22-2008, 04:36 PM

Quote:

Originally Posted by NemeGuero

Thats not a temp switch, thats a temp gauge. Retard.

Owned.

And where can I get this two stage Pivot controller? I have Altima fans, so this would be awesome.

aNskY · 04-22-2008, 04:48 PM

tap the water neck 1/2"npt. done.

*NemeGuero* · 04-22-2008, 05:45 PM

http://www.racinglab.com/greddy-mss-15500600.html

heres where i got mine

they're local so I picked it up.

turtl631 · 04-22-2008, 07:10 PM

Quote:

Originally Posted by aNskY

tap the water neck 1/2"npt. done.

For what temp switch? Most I've seen are 1/8" NPT, although some weird domestic options use the larger pipe thread fittings.

projectRDM · 04-22-2008, 08:00 PM

Quote:

Originally Posted by aNskY

tap the water neck 1/2"npt. done.

Complete fail. 1/2" NPT would be huge as fuck.

LA_phantom_240 · 04-22-2008, 09:09 PM

Quote:

Originally Posted by projectRDM

Complete fail. 1/2" NPT would be huge as fuck.

Indeed. 1/4" NPT is pretty large for our small scale equipment.

aNskY · 04-22-2008, 09:17 PM

lol, excuse the typo. of course i meant 1/8 (he clearly said his sensor is 1/8npt)... you guys are brutal

96Turbo · 04-23-2008, 09:54 PM

does anyone know the thread size for the sensor in the SOHC lower hose adapter?? I'm looking for fan controller kits, and they all come with 3/8" sensors....whereas you guys keep talkin bout 1/8"..... I've got the SOHC hose adapter, but wanna know if i can use a 3/8" sensor without welding a bung on

*NemeGuero* · 04-23-2008, 10:54 PM

why not use the OE sender? tap it from the ECU. Its pin 85.. or 82. or some shit.

96Turbo · 04-23-2008, 11:17 PM

cuz i'm planning on using an adjustable temp fan controller that relies on its own provided temp sensor. I'm thinking the ECU temp sender puts out a different signal than the one with this kit......

So i ordered the kit i was gonna use from summit, and now find out its backordered. This got me thinking it could be a sign that i don't need it. S13's have a circuit built in for an A/C fan correct? Meaning it triggers the A/C fan when temp reaches a certain point and/or the A/C is turned on. Instead of dropping $40 on an adjustable kit (or $30 for non adjustable), could i plug my fans into this circuit?? I'm assuming it's relayed...but if not then i could just hook up a relay that's triggered from this circuit correct?

I'm all about low buck but effective. let me know if that would work and if i would need to use a relay or not
NOTE: (i'll be using 2 14" fans that each draw 6.7 amps)

*NemeGuero* · 04-23-2008, 11:29 PM

Yes they do but its way high. Like, I wouldn't recommend using it if you actually drive your car.

I think its 190F? My car NEVER sees that temp with my fan setup.

96Turbo · 04-23-2008, 11:30 PM

so how do you suggest using the ECU temp sender for a fan controller?

04-21-2008, 11:23 AM	#1
brian. Join Date: Sep 2007 Location: Michigan Posts: 31 Trader Rating: (0) Feedback Score: 0 reviews	E- Fan Temp Switch i am looking to install an electric fan in place of the oem fan. i am currently looking at a few kits from summit. i would rather use a thread in sensor, rather than the probe that gets put in the radiator (between the fins) but did not know where to put it. I would prefer to not "splice" a piece of pipe with a threaded bung into a radiator hose, and WOULD like to use an existing threaded hole if possible. i believe the sensor comes with a sensor that is 1/8 npt. if anyone has a pic, or knows where i can hook this sensor to, i would appreciate it. also i plan on setting the fan to run at 180, and shut off at 170. lmk what you think. CAR: 1995 240sx (base), stock for now, plan on boosting. (have all parts, but want to get a few supporting things done 1st.) Brian.

04-21-2008, 08:24 PM	#7
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	You can use the ECU water temp sensor. At least its what I'm using for my Greddy MSS. __________________

04-22-2008, 08:35 AM	#14
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	The 'best' method I've found is to buy a Pivot fan controller. There's two models, one comes with a sender that you can put into the inlet neck on the manifold, just drill/tap behind the OE senders, the other model ties into the OE sender and reads it from there. There's some confusion when you order one since most places aren't very thorough in their description and you may get either model, but it does the job, is programmable, and includes a water temp display so you can ditch the OE gauge completely. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

04-22-2008, 10:21 AM	#17
bigOdom1 Nissanaholic! Join Date: Nov 2005 Location: Auburn/Birmingham AL Age: 41 Posts: 1,817 Trader Rating: (4) Rides Gallery: bigOdom1 Feedback Score: 4 reviews	tap the water neck slap an autometer gauge in and call it a day __________________ my car domain that good review thread

04-22-2008, 05:45 PM	#21
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	http://www.racinglab.com/greddy-mss-15500600.html heres where i got mine they're local so I picked it up. __________________

04-21-2008, 01:37 PM	#2
jhec23 Zilvia Member Join Date: Oct 2007 Location: Socal (818) Age: 46 Posts: 220 Trader Rating: (0) Feedback Score: 0 reviews	You can get the temp switch with the 1/2 fitting and put it on the coolant hose going to the heater or intake.

04-21-2008, 07:29 PM	#3
zylvia213 Nissanaholic! Join Date: Aug 2007 Location: LOST ANGELES Posts: 1,978 Trader Rating: (36) Rides Gallery: zylvia213 Feedback Score: 36 reviews	Im running flex-a-lite fans on my s13 SR. I used temp sensor from stock s13 KA motor and got 2 BOSCH alarm relays. Fans kick in at about 180-190. Works great

04-21-2008, 08:52 PM	#10
chituntang Zilvia Junkie Join Date: Sep 2005 Location: ATL Age: 38 Posts: 505 Trader Rating: (13) Feedback Score: 13 reviews	Well, I have those too, but the catch is I can adjust when it comes on, so it is fine. It sounds more like your fan is not kicking on at the right temp. It is not as good as it is not taking water temp, but the rad. temp. So I will switch my controller later. But right now it works wonderfully.

04-22-2008, 01:36 AM	#12
tgd89 Leaky Injector Join Date: Oct 2005 Location: abq nm Posts: 123 Trader Rating: (0) Feedback Score: 0 reviews	Actually the rad probe on my derale fan controller just died after maybe a month or two of use. Use a thread in one, it worked ok but couldn't of been too accurate.

04-22-2008, 08:14 AM	#13
brian. Join Date: Sep 2007 Location: Michigan Posts: 31 Trader Rating: (0) Feedback Score: 0 reviews	so for those of you using the thread in, where are you putting it?? Thanks for all the replys.

04-22-2008, 09:53 AM	#16
japslapsilvia Zilvia FREAK! Join Date: Nov 2007 Location: dallas, TX Age: 42 Posts: 1,245 Trader Rating: (12) Feedback Score: 12 reviews	my 2 favorite methods, is to eithor use Greddy MSS, which i have, it uses the stock CTS signal, or use a lower radiator hose adapter, and sensor from SOHC, this is the cheapest option...use it with a 30A relay and 10amp fuse.... really simple wiring...12+ (constant or ign+ doesnt matter) to fan, via fuse 12+ to #85 on relay ground to 86 wire from 87 to neg side of fan wire 30 to one side of the sensor, and ground the other side. i believe that this is correct for the wiring cant really remember off the top of my head...someone correct me if i am wrong.

04-22-2008, 04:48 PM	#20
aNskY Nissanaholic! Join Date: Apr 2005 Location: NY Age: 41 Posts: 1,604 Trader Rating: (10) Feedback Score: 10 reviews	tap the water neck 1/2"npt. done.

04-22-2008, 09:17 PM	#25
aNskY Nissanaholic! Join Date: Apr 2005 Location: NY Age: 41 Posts: 1,604 Trader Rating: (10) Feedback Score: 10 reviews	lol, excuse the typo. of course i meant 1/8 (he clearly said his sensor is 1/8npt)... you guys are brutal

04-23-2008, 09:54 PM	#26
96Turbo Zilvia FREAK! Join Date: Nov 2007 Location: AZ Age: 36 Posts: 1,315 Trader Rating: (11) Feedback Score: 11 reviews	does anyone know the thread size for the sensor in the SOHC lower hose adapter?? I'm looking for fan controller kits, and they all come with 3/8" sensors....whereas you guys keep talkin bout 1/8"..... I've got the SOHC hose adapter, but wanna know if i can use a 3/8" sensor without welding a bung on

04-23-2008, 10:54 PM	#27
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	why not use the OE sender? tap it from the ECU. Its pin 85.. or 82. or some shit. __________________

04-23-2008, 11:17 PM	#28
96Turbo Zilvia FREAK! Join Date: Nov 2007 Location: AZ Age: 36 Posts: 1,315 Trader Rating: (11) Feedback Score: 11 reviews	cuz i'm planning on using an adjustable temp fan controller that relies on its own provided temp sensor. I'm thinking the ECU temp sender puts out a different signal than the one with this kit...... So i ordered the kit i was gonna use from summit, and now find out its backordered. This got me thinking it could be a sign that i don't need it. S13's have a circuit built in for an A/C fan correct? Meaning it triggers the A/C fan when temp reaches a certain point and/or the A/C is turned on. Instead of dropping $40 on an adjustable kit (or $30 for non adjustable), could i plug my fans into this circuit?? I'm assuming it's relayed...but if not then i could just hook up a relay that's triggered from this circuit correct? I'm all about low buck but effective. let me know if that would work and if i would need to use a relay or not NOTE: (i'll be using 2 14" fans that each draw 6.7 amps)

04-23-2008, 11:29 PM	#29
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	Yes they do but its way high. Like, I wouldn't recommend using it if you actually drive your car. I think its 190F? My car NEVER sees that temp with my fan setup. __________________

04-23-2008, 11:30 PM	#30
96Turbo Zilvia FREAK! Join Date: Nov 2007 Location: AZ Age: 36 Posts: 1,315 Trader Rating: (11) Feedback Score: 11 reviews	so how do you suggest using the ECU temp sender for a fan controller?