Setting up a new unconventional AC system

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565bbchevy

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That's a very clean installation. It looks like you are using the compressor as the belt adjust or is there another adjustment? I know on my Jeep getting the adjustable belt tension is a pain. I finally grabbed an old school belt tension gauge on FleaBay. No more guessing.
Yes the compressor is my adjustment for my belt but because it is a long belt I am considering setting it up with either an idler pulley or a tensioner.
 

Bonnewagon

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565bbchevy

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I'd go with a tensioner since it self-adjusts.
That is what I am looking at now trying to find something that might work and be bolted on I am not sure how most factory ones mount.
 

Bonnewagon

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On my Daughter's '95 Formula LT1 there is a huge aluminum bracket bolted to the front of the engine. All the accessories, idler, and tensioner mount to that. A little junkyard browsing might produce something similar that could be cut down just to the tensioner mount.
s-l225.jpg
 

jlcustomz

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Don't think it 100% matters if an idler pulley is a self adjusting tensioner or manual adjusted, both have their good & bad points. An idler inline will also help take the slap out of a long belt length. Street & performance used to be a good source for individual accessories, but heard not the same to deal with since owner died.
I did a vintage air compac unit conversion approx. 10 years ago. Definitely a good thing to have all new stuff. My one wish is that I'd tried to stuff the next size up unit in there, stronger would be nicer. Other problem with after market units, which you won't have is windows fogg up with heat in damp cold & have to run ac full on with heat, but don't need heat that often either. Also wish I'd have done my own lines.
Another suggestion to go along with this is to look into the latest window tints, which reflect much more heat. Heard something about clear ceramic tint that could be used on front windshield, but haven't even thought about it again till reading your thread.
 
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565bbchevy

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I already have a new fixed idler pulley that all I would have to do is make a mount for it and bolt it on, I am just wondering in a self adjusting tensioner would have any advantage but regardless of what I use it will be new.
I do have my windows tinted but they are a dark bronze, no plans on changing that plus with the cage there is very little working room inside my car.
I will have to remove a bucket seat(s), rear seat and rear aluminum firewall just to gain access to work on the trunk mount unit.
 

jlcustomz

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Nov 22, 2011
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Particularly with the output of your engine, your probably better off keeping it simple with the fixed idler & not having the negative problems of spring tensioners. One double check on tension after a few miles of use & you should be good for quite some time.
 

565bbchevy

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Particularly with the output of your engine, your probably better off keeping it simple with the fixed idler & not having the negative problems of spring tensioners. One double check on tension after a few miles of use & you should be good for quite some time.
I do think the fixed idler might be the better option since I do have the capability to adjust tension and use the tension tester to set it.
 

Bonnewagon

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The tester is key. I am amazed at how quickly the tension changes on my Jeep. Even humid weather affects it.
 

565bbchevy

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