A/C High Pressure Switch Question
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From: Charlotte, NC
Car: 1991 Camaro RS
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3.42 Std
A/C High Pressure Switch Question
OK, I am putting a 305 TPI from an 85 into my 91 Camaro. In order to keep electric gauges and for other reasons, I am keeping the computer & wiring from the 91. The A/C compressor for the 85 does not have a high pressure switch on it, just the two terminals that go to the relay. The 91 had a high pressure cutoff that was mounted in the compressor that seems to turn off the clutch if open. I can't just put the 91 compressor in as the 85 is v-belt rather than serp.
Here is the question I have... Since the compressor is not designed for a high pressure cutoff, is it safe to just bypass the high pressure connector on the wiring harness (hardwire on) or is there some way that the 85 system monitored the high pressure side that I am missing and need to include?
Any help would be greatly appreciated.
Here is the question I have... Since the compressor is not designed for a high pressure cutoff, is it safe to just bypass the high pressure connector on the wiring harness (hardwire on) or is there some way that the 85 system monitored the high pressure side that I am missing and need to include?
Any help would be greatly appreciated.
Last edited by 91RS_Charlotte; Dec 15, 2009 at 10:12 AM. Reason: clarification
Thread Starter
Junior Member
iTrader: (1)
Joined: May 2009
Posts: 46
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From: Charlotte, NC
Car: 1991 Camaro RS
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3.42 Std
Re: A/C High Pressure Switch Question
After a little further digging, I came up with a better solution. The 85 compressor has the spot for the high pressure switch, so I can just transplant the switch into the compressor.
Thread Starter
Junior Member
iTrader: (1)
Joined: May 2009
Posts: 46
Likes: 0
From: Charlotte, NC
Car: 1991 Camaro RS
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3.42 Std
Re: A/C High Pressure Switch Question
The 91 was a V-6. Even if it wasn't, I understand that a serp bracket system will not mount to my heads without drilling. I may do it one day, but just wanted to keep the changes as few as possible for now.
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Ah, you never mentioned it has a V6 in it now. Your user info says "305 TPI".
A serp setup will bolt to an '85 engine without drilling.
A serp setup will bolt to an '85 engine without drilling.
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