GTM stage 2 Air Conditioner Problem?

daisuke149 · 07-02-2012, 10:29 PM

!! there you go problem fixed!

j/k. Hope ya get it worked out man. Its effing hot out here too in atlanta can't imagine going around without the a/c.

hindi1973 · 07-03-2012, 02:25 AM

Sam we are in 130 to 140 f temps . Do u think the readings are in the normal range ? Did mike pass u the word regarding the gtm stage1 map and fans we need

Thx

birdmanx1 · 07-03-2012, 08:45 AM

Quote:

Originally Posted by elliotty

Very interesting thread! I have not had this problem. I have been driving in +/- 90 degree heat lately and have been ONLY turning on the AC when at a stop. No hot air for me...knock on wood.

Elliotty

Great support on the part of the GTM team. Nonetheless, I can't help but file this as yet another potential cryptic issue related to the FI build.

I hope you do get your issue resolved in a prompt fashion LAFittez.

elliotty · 07-03-2012, 09:34 AM

Quote:

Originally Posted by birdmanx1

Elliotty

Great support on the part of the GTM team. Nonetheless, I can't help but file this as yet another potential cryptic issue related to the FI build.

I hope you do get your issue resolved in a prompt fashion LAFittez.

Ha guess this does seem a little bit counter-intuitive. The heat hasn't been unbearable, so I usually just go windows down, no AC. However, I usually turn the AC on at a stop since it gets hot in the cabin and there is no airflow to the oil cooler. I have found the AC fan pulls some air in and helps control the temps.

Even so, I still don't get oil temps above 220, even on hot days in traffic.

Z eliminator · 07-03-2012, 10:17 AM

Have any of you guys checked the condition of the condenser coils to make sure that they are clean, there may be dirt on them causing a bad heat exchange, it does not take a lot of dirt to mess up an AC condenser from working to max capacity on a very hot and humid day.
I would also check the intercooler to make sure that it is clean as well.
Oil temps and high water temps in the car have no effect on the A/C system unless the cars ECU turns off the AC compressor as a way of stoping the heat transfer from the condenser to affect the temp of the air going into the rad.

Z

LafitteZ · 07-03-2012, 12:04 PM

Quote:

Originally Posted by Z eliminator

Have any of you guys checked the condition of the condenser coils to make sure that they are clean, there may be dirt on them causing a bad heat exchange, it does not take a lot of dirt to mess up an AC condenser from working to max capacity on a very hot and humid day.
I would also check the intercooler to make sure that it is clean as well.
Oil temps and high water temps in the car have no effect on the A/C system unless the cars ECU turns off the AC compressor as a way of stoping the heat transfer from the condenser to affect the temp of the air going into the rad.

Z

Cool ill do that too. Im going to take the bumper off tonite and make sure things are clean since I do a ton of driving. Im trying to find someone who i feel is qualified to work on it. Iv had bad experiences with mechanics saying they can work on a z but really cant. I have some z1 hoses and stuff to put on so I think im going to drain and refill the radiator and let someone do the vacuum thing on the ac just to make sure. See this is stuff I can relay to a mechanic so they can check. I drive up and I dont really know what all this is so I dont really know what to tell them to check or look for. Thanks for all of your help. If you have any more brain storms plz let me know.

Mkai0 · 07-03-2012, 01:22 PM

Quote:

Originally Posted by LafitteZ

Cool ill do that too. Im going to take the bumper off tonite and make sure things are clean since I do a ton of driving. Im trying to find someone who i feel is qualified to work on it. Iv had bad experiences with mechanics saying they can work on a z but really cant. I have some z1 hoses and stuff to put on so I think im going to drain and refill the radiator and let someone do the vacuum thing on the ac just to make sure. See this is stuff I can relay to a mechanic so they can check. I drive up and I dont really know what all this is so I dont really know what to tell them to check or look for. Thanks for all of your help. If you have any more brain storms plz let me know.

I feel your pain Lafitte. Going forced induction is not always easy. In the past I've needed little things fixed on my car, and I've had mechanics work on my car who supposedly knew what they were doing. To make a long story short most of the problems that the mechanics didn't fix I ended up fixing them myself.

SS_Firehawk · 07-03-2012, 04:28 PM

I just picked my vehicle up from the dealer regarding this problem and saw no ill issues. On the hottest of days in stop and go traffic, it will shut down and blow hot air to preserve its self was the explanation I received. I have a 72 row oil cooler on the front of my car so I'm sure it does impede flow to the compressor and condenser. I also have ceramic coated long tube headers with no heat shield that makes the engine bay pretty toasty. It could be the same reason with supercharged and turbocharged motors having inter coolers reducing airflow. Maybe some upgraded fans on the radiator and some ducted air flow could alleviate this problem.

LafitteZ · 07-03-2012, 05:51 PM

Yep that's what it looks like its gonna need a HO fan setup.

LafitteZ · 07-03-2012, 10:18 PM

Is it ok to spray water directly at the front of the fmic and the condenser and radiator and stuff? Just to make sure it's all clean?

Mr&Mrs · 07-03-2012, 10:52 PM

Yes but dont use to much pressure or you will bend the fins.

LafitteZ · 07-03-2012, 11:41 PM

Quote:

Originally Posted by Mr&Mrs

Yes but dont use to much pressure or you will bend the fins.

cool thanks

hindi1973 · 07-19-2012, 01:59 AM

hi guys can anyone post their expereince in hot states above 110f regarding the low side and high side ac pressure results ? i am limited at the time being for the high side pressure gauge and most shops around me only can see the low side which is approx 32 to 35 psi , but the ac still gets hot in stop go traffic . so before i take action with bigger than fans , i am doing sams advise ac 101

, i have a feeling the high side is either too high or too low , or the 32 psi low side is also too low for our 130f weather or gets too high when the compressor kicks in .

all your help is appreciated

brand new 2012 twinturbo 370z nismo , approx 40's row oil cooler ,csf radiator , distilled water with water wetter , coolent temp is either half exactly or one dot below , oil temps is usually 210 to 220 in our 130+f weather

jm1fd · 07-22-2012, 10:49 PM

I don't have experience with R-134a systems in ambient temperatures that hot, but I do have experience with R-134a systems in general. It wouldn't surprise me a bit to see high side pressures of 300-350 in 130 degree ambient temperatures. Low side under those conditions would probably be in the neighborhood of 40-50.

A/C getting hot in stop and go traffic sounds like it is cutting the compressor because the high side pressure is too high. If it is only in stop and go traffic, then you have insufficient airflow through your condenser, or the air you're getting into your condenser is too hot.

I assume you have one or more intercoolers in front of the condenser? Where are your air filters located? Are they pulling in cool air or hot air from the engine bay? If they're getting hot air from the engine bay, the intercooler(s) are dumping that excess heat straight into the front of the condenser, and that is suboptimal to say the least.

Quote:

Originally Posted by hindi1973

hi guys can anyone post their expereince in hot states above 110f regarding the low side and high side ac pressure results ? i am limited at the time being for the high side pressure gauge and most shops around me only can see the low side which is approx 32 to 35 psi , but the ac still gets hot in stop go traffic . so before i take action with bigger than fans , i am doing sams advise ac 101

, i have a feeling the high side is either too high or too low , or the 32 psi low side is also too low for our 130f weather or gets too high when the compressor kicks in .

all your help is appreciated

brand new 2012 twinturbo 370z nismo , approx 40's row oil cooler ,csf radiator , distilled water with water wetter , coolent temp is either half exactly or one dot below , oil temps is usually 210 to 220 in our 130+f weather

hindi1973 · 07-23-2012, 02:21 AM

well i have an appointment at one of shops that have the gauge for both low and high side , i sat in the car for 45 min in 120f weather infront of the house and it was cold as hell till the oil temps reached 220 and the dots are in the middle and most it reaches is one dot past middle , so i guess when i go there i should wait till it starts reaching those temps and test it , because if they test while its cold it might not be too hig or too low , its a twinturbo setup so i yes their is a big as% intercooler and the filters are on the sides behind the bumper , the solution which alot agree on and its a fact twinturbo setups,turbos,superchargers on those cars need bigger fans period , stock ones are not doing the job so spal fans will be replaced soon with high cfm and another fan behind the cooler , all will be with a thermo swtich .
thank you for ur sharing and help , finally someone shared or said something .

07-03-2012, 10:17 AM	#65 (permalink)
Z eliminator A True Z Fanatic Join Date: Jul 2009 Location: Ontario Canada Posts: 1,659 Drives: 370 Z 7AT Sports Rep Power: 19	Have any of you guys checked the condition of the condenser coils to make sure that they are clean, there may be dirt on them causing a bad heat exchange, it does not take a lot of dirt to mess up an AC condenser from working to max capacity on a very hot and humid day. I would also check the intercooler to make sure that it is clean as well. Oil temps and high water temps in the car have no effect on the A/C system unless the cars ECU turns off the AC compressor as a way of stoping the heat transfer from the condenser to affect the temp of the air going into the rad. Z __________________ 12.343 @114.14 . 4.5 stroker motor is now being built. Dec 1 2015. Last edited by Z eliminator; 07-03-2012 at 10:23 AM.

07-03-2012, 04:28 PM	#68 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7335	I just picked my vehicle up from the dealer regarding this problem and saw no ill issues. On the hottest of days in stop and go traffic, it will shut down and blow hot air to preserve its self was the explanation I received. I have a 72 row oil cooler on the front of my car so I'm sure it does impede flow to the compressor and condenser. I also have ceramic coated long tube headers with no heat shield that makes the engine bay pretty toasty. It could be the same reason with supercharged and turbocharged motors having inter coolers reducing airflow. Maybe some upgraded fans on the radiator and some ducted air flow could alleviate this problem. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

07-03-2012, 10:52 PM	#71 (permalink)
Mr&Mrs A True Z Fanatic Join Date: May 2010 Location: Tampa Posts: 4,207 Drives: RZ34 Rep Power: 31940	Yes but dont use to much pressure or you will bend the fins. __________________ Project Z <--Click - Check out the link too many mods to list!

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07-02-2012, 10:29 PM	#61 (permalink)
daisuke149 My *** is famous! Join Date: Mar 2010 Location: Alpharetta, GA Posts: 4,849 Drives: 2013 Boss 302 PW Rep Power: 31	!! there you go problem fixed! j/k. Hope ya get it worked out man. Its effing hot out here too in atlanta can't imagine going around without the a/c.

07-03-2012, 02:25 AM	#62 (permalink)
hindi1973 Base Member Join Date: Mar 2011 Location: unknown Posts: 177 Drives: twinturbo 370z Rep Power: 14	Sam we are in 130 to 140 f temps . Do u think the readings are in the normal range ? Did mike pass u the word regarding the gtm stage1 map and fans we need Thx

07-03-2012, 05:51 PM	#69 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	Yep that's what it looks like its gonna need a HO fan setup.

07-03-2012, 10:18 PM	#70 (permalink)
LafitteZ Track Member Join Date: Jan 2011 Location: lafitte, la Posts: 698 Drives: 40th anniversary Rep Power: 15	Is it ok to spray water directly at the front of the fmic and the condenser and radiator and stuff? Just to make sure it's all clean?

07-19-2012, 01:59 AM	#73 (permalink)
hindi1973 Base Member Join Date: Mar 2011 Location: unknown Posts: 177 Drives: twinturbo 370z Rep Power: 14	hi guys can anyone post their expereince in hot states above 110f regarding the low side and high side ac pressure results ? i am limited at the time being for the high side pressure gauge and most shops around me only can see the low side which is approx 32 to 35 psi , but the ac still gets hot in stop go traffic . so before i take action with bigger than fans , i am doing sams advise ac 101 , i have a feeling the high side is either too high or too low , or the 32 psi low side is also too low for our 130f weather or gets too high when the compressor kicks in . all your help is appreciated brand new 2012 twinturbo 370z nismo , approx 40's row oil cooler ,csf radiator , distilled water with water wetter , coolent temp is either half exactly or one dot below , oil temps is usually 210 to 220 in our 130+f weather

07-23-2012, 02:21 AM	#75 (permalink)
hindi1973 Base Member Join Date: Mar 2011 Location: unknown Posts: 177 Drives: twinturbo 370z Rep Power: 14	well i have an appointment at one of shops that have the gauge for both low and high side , i sat in the car for 45 min in 120f weather infront of the house and it was cold as hell till the oil temps reached 220 and the dots are in the middle and most it reaches is one dot past middle , so i guess when i go there i should wait till it starts reaching those temps and test it , because if they test while its cold it might not be too hig or too low , its a twinturbo setup so i yes their is a big as% intercooler and the filters are on the sides behind the bumper , the solution which alot agree on and its a fact twinturbo setups,turbos,superchargers on those cars need bigger fans period , stock ones are not doing the job so spal fans will be replaced soon with high cfm and another fan behind the cooler , all will be with a thermo swtich . thank you for ur sharing and help , finally someone shared or said something .