AC add on, 92' 1.6 -> '03 1.8 Turbo
05-21-2022, 05:50 PM
#1
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AC add on, 92' 1.6 -> '03 1.8 Turbo
Hey all,
I have a '92 that originally did not have AC installed that I have since swapped engines for the '03 1.8 and turbocharged. I was hoping to get some insight into how difficult it would to install an AC unit into the car. Any information would be great!
I have a '92 that originally did not have AC installed that I have since swapped engines for the '03 1.8 and turbocharged. I was hoping to get some insight into how difficult it would to install an AC unit into the car. Any information would be great!
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06-06-2022, 01:25 PM
#8
ahh ok, then have at it.
i'm doing the same although my situation is different. i removed AC 7 years ago but now i want it back.
i also tirmmed the harness to barebones so all those AC plugs, pfff...gone.
the only thing is getting the MS3 to understand the A/C...but i'll figure that part out.
i'm doing the same although my situation is different. i removed AC 7 years ago but now i want it back.
i also tirmmed the harness to barebones so all those AC plugs, pfff...gone.
the only thing is getting the MS3 to understand the A/C...but i'll figure that part out.
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06-06-2022, 01:39 PM
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Oh yeah, the wiring will definitely be a pain, especially running it into the dash and whatnot, I'm more concerned about it being the AC set up from the 1.8 and how that might differ and cause issues. I'm running a Speeduino on mine so I know that'll be.... interesting to deal with too haha. How far along are you with your readdition of the system? Any big speedbumps you've run into along the way I should look out for?
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06-07-2022, 12:59 PM
#10
Oh yeah, the wiring will definitely be a pain, especially running it into the dash and whatnot, I'm more concerned about it being the AC set up from the 1.8 and how that might differ and cause issues. I'm running a Speeduino on mine so I know that'll be.... interesting to deal with too haha. How far along are you with your readdition of the system? Any big speedbumps you've run into along the way I should look out for?
you need to wire the Hi/Low pressure switches, the FAN (this is easy).
if you cna't bump the IDLE when the A/C is on, your engine will likely shut down at a stop sign if the A/C compressor kicks in.
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06-07-2022, 01:26 PM
#11
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the only issue i see is if your ECU is not able to control the A/C, you will run into issues bumping up the IDLE when the A/C is on.
you need to wire the Hi/Low pressure switches, the FAN (this is easy).
if you cna't bump the IDLE when the A/C is on, your engine will likely shut down at a stop sign if the A/C compressor kicks in.
you need to wire the Hi/Low pressure switches, the FAN (this is easy).
if you cna't bump the IDLE when the A/C is on, your engine will likely shut down at a stop sign if the A/C compressor kicks in.
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06-07-2022, 02:03 PM
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I put a 03 engine and r134a system into my 1991. I used an NA8 system, all components from a 1997 donor vehicle, with new dryer and condenser adapted onto the existing components. You'll probably need the NA6 evaporator assembly behind the dash. I ended up needing to get one custom pipe and hose combo made for me by a repair shop.
The most successful way to do it would be to start with an entire R12 system and an entire NA8 system and piece together a combination that works. The NA6 stuff will probably be needed for the hard lines that go through the firewall, and everything inside the cab, with NA8 stuff everywhere else. Then try and sell whatever is left over since many of the lines are no longer in production. I don't recall there being a whole lot of wires, maybe 4 connection points overall
The most successful way to do it would be to start with an entire R12 system and an entire NA8 system and piece together a combination that works. The NA6 stuff will probably be needed for the hard lines that go through the firewall, and everything inside the cab, with NA8 stuff everywhere else. Then try and sell whatever is left over since many of the lines are no longer in production. I don't recall there being a whole lot of wires, maybe 4 connection points overall
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06-07-2022, 02:09 PM
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I put a 03 engine and r134a system into my 1991. I used an NA8 system, all components from a 1997 donor vehicle, with new dryer and condenser adapted onto the existing components. You'll probably need the NA6 evaporator assembly behind the dash. I ended up needing to get one custom pipe and hose combo made for me by a repair shop.
The most successful way to do it would be to start with an entire R12 system and an entire NA8 system and piece together a combination that works. The NA6 stuff will probably be needed for the hard lines that go through the firewall, and everything inside the cab, with NA8 stuff everywhere else. Then try and sell whatever is left over since many of the lines are no longer in production. I don't recall there being a whole lot of wires, maybe 4 connection points overall
The most successful way to do it would be to start with an entire R12 system and an entire NA8 system and piece together a combination that works. The NA6 stuff will probably be needed for the hard lines that go through the firewall, and everything inside the cab, with NA8 stuff everywhere else. Then try and sell whatever is left over since many of the lines are no longer in production. I don't recall there being a whole lot of wires, maybe 4 connection points overall
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