Air Conditioning
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Air Conditioning
About to hook up the A/C on my LS6 RX-7. Just trying to get some ideas on the best way to do it. Should I use the RX-7's A/C system and plumb it to the LS's compressor, or use all GM stuff. Any advice is well appreciated.
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The only mazda thing I used in the entire A/C system was the evaporator core. Everything from the fittings on the firewall forward I made and used GM parts. There's a write-up on norotors that covers it pretty well. Thats the guide I followed.
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That's what I'm considering doing, using all GM stuff from firewall forward. I'm not using the stock ECU, however, so I don't know if that will affect which parts I use. The refrigerant pressure switch is one of those parts. So I need some info on building an A/C system that doesn't require the use of the GM ECU.
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#4
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The pressure switch does nothing more than protect the compressor if the pressure is low. You can hook up a 12v power signal to the clutch and engage it with nothing more than a switch and a battery.
Many aftermarket ecu's like the Holley dominator could even control the A/C with an RPM cutoff and everything.
The Mazda Evap is all you'll use. A condenser from ebay and a dryer are fine. It's the lines that need to be custom made. Halfspec on norotor has done a ton for use.
Many aftermarket ecu's like the Holley dominator could even control the A/C with an RPM cutoff and everything.
The Mazda Evap is all you'll use. A condenser from ebay and a dryer are fine. It's the lines that need to be custom made. Halfspec on norotor has done a ton for use.
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Sounds good. Thanks for the info. I'm running the Electromotive TEC GT ECU. I'm not sure if that has the ability to control A/C function but it sounds like I won't need it to.
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I highly recommend to include the GM sensor in your AC build. You wan't your car build right, don't you?
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Not sure if the pressure sensor is compatible with the electromotive ecu. The ecu will idle up with A/C on but not sure it will recognize signal from sensor. Wondering if switch will be ok.
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