S14 sr heating issues with AC on - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

projectblak · 06-11-2012, 04:46 PM

Motor: s14 sr20det
Mods: disco Potato
Fmic
Mishimoto radiator
Mishimoto fans and shroud
Nismo thermostat
DIF fan controller
Alright, so before I had my AC charged, car would stay at 175-180 degrees crusing through city or on highway never above 180, and oil temp about the same.
Finally got my ac charged and it blows ice cold, but my temps climb to about 190+, even on the highway and both fans on. Am I missing something? Tried searching on it. Do I need to run a clutch fan, or a 3rd electric fan?
Any input would be great,
Thanks in advance

*fliprayzin240sx* · 06-11-2012, 05:55 PM

Add another E-fan for the the AC condenser, wire up a relay and tap off the AC compressor signal wire to turn the relay on/off so it'll only be on when with the AC.

If that doesnt work, take the E-fans out, slap the stock shroud and clutch fan on. That was the only way my shit stopped creeping up to 100 with the AC on and stuck in traffic.

projectblak · 06-11-2012, 06:39 PM

Thanks for the input man, that was my second option until I remembered that my DIF has a option for AC Hooked the wire up and took it for a 1/2 hour drive and temps didn't go higher than 185F with ac on full blast.. Thanks again man.

06-11-2012, 04:46 PM	#1
projectblak Zilvia Member Join Date: Jul 2011 Location: louisville ky Age: 34 Posts: 297 Trader Rating: (5) Feedback Score: 5 reviews	S14 sr heating issues with AC on Motor: s14 sr20det Mods: disco Potato Fmic Mishimoto radiator Mishimoto fans and shroud Nismo thermostat DIF fan controller Alright, so before I had my AC charged, car would stay at 175-180 degrees crusing through city or on highway never above 180, and oil temp about the same. Finally got my ac charged and it blows ice cold, but my temps climb to about 190+, even on the highway and both fans on. Am I missing something? Tried searching on it. Do I need to run a clutch fan, or a 3rd electric fan? Any input would be great, Thanks in advance

06-11-2012, 05:55 PM	#2
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	Add another E-fan for the the AC condenser, wire up a relay and tap off the AC compressor signal wire to turn the relay on/off so it'll only be on when with the AC. If that doesnt work, take the E-fans out, slap the stock shroud and clutch fan on. That was the only way my shit stopped creeping up to 100 with the AC on and stuck in traffic. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

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06-11-2012, 06:39 PM	#3
projectblak Zilvia Member Join Date: Jul 2011 Location: louisville ky Age: 34 Posts: 297 Trader Rating: (5) Feedback Score: 5 reviews	Thanks for the input man, that was my second option until I remembered that my DIF has a option for AC Hooked the wire up and took it for a 1/2 hour drive and temps didn't go higher than 185F with ac on full blast.. Thanks again man.