When still fitted with the original 2.1L motor, my AC pump used to churn out some decently cool air.
Since going with the Subaru 2.5, the AC does not seem anywhere as efficient - and right now needs a re-gas - but I wondered what’s everyone with a Subi motor’s experience with their AC. Do you find it works good and get nice cold air?
I’m also wondering how hard it would be to adapt my old AC pump to the Subi motor, has anyone done anything like that?
Thanks in advance!
Gaetan
I never refitted the A/C when I re-did my subie conversion to an EJ25 so I am not sure but a mate from Sydney has the A/C fitted in his Telstra syncro and says he gets good cool air coming through.
Maybe you need a new dryer as well.
As soon as they get moisture into them, they become useless.
I would like A/C in mine but not sure which way to do it - I would like an in-dash system as my old overhead system was always useless.
Hi Gaetan
The compressor of both would be close to the same size check on the net the CCs of both units before changing. Check wiring that the front radiator fan comes on when you turn on the A/C as the relay may not have been wired in after the subi conversion resulting in high condensing temp = high evaporator temp. Before changing anything put a set gauges on to find out what is happening inside the system.
Michael
Hi Michael,
that’s great info thanks.
When you say the radiator fan do you mean the main fan should come on whenever the ac is on? I’ll ask Luke if he wired that relay - that’s the ac relay right?
Also when you say gauges, do you mean to measure the refrigerant pressure and level?
Sorry I don’t know much about ac…
Thanks
Gaetan
Yes the main radiator fan has to run at all times the A/C is on. It runs at low speed as to keep air flowing across the condenser, the relay is mostly mounted near the A/C dryer at the passenger side headlight , well two of my syncros were mounted there. Regas is only required if short of gas that is why I say check all other things first a set of gauges tells what is going on re pressures inside the system . You won’t have gauges so to tell if yours is working turn on A/C make sure front radiator fan is running go to the back and feel the two pipes into the compressor the large one is the suction and should have gas returning cold and show condensation on it , the other line is discharge it is very hot to the point that if you held your hand on it it would burn the compressor will turn on and off via the clutch the pulley and low pressure switch every minute or so. If both pipes feel close to the same temp you are short of gas or the compressor has a cracked valve plate meaning a compressor change.
Michael