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Jim Sims
Jim Sims is offline
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Join Date: May 2000
Location: Los Alamos, NM, USA
Posts: 6,044
"No universal R-12/R134a combicomp"

The above compressor is used on 911's for a reason. It has the redeeming feature of having ports at convenient locations for mounting the servicing fittings. The newer R134a Sanden compressor does not. You'll need space to deal with the harness servicing fittings and a high-low pressure switch. Plan ahead or you'll be dismounting the compressor each time you need to change the oil filter. Also, better check out the clearance of the the outer pulley groove edge to the underside of the decklid and remember the decklid over travels downward against the latch springs.

A unique installation? Almost everything feasible has been tried on 911 A/C installations. It will be interesting to see what you come up with. What would be unique and weight saving would be to render that OEM "boat anchor" of a mounting bracket in Titanium alloy or carbon fiber composite.

"Now what isn't mentioned directly is this is an 8ci unit not 7ci. So guess what?? 14% more capacity!!!! And more refrigerant in the system! ( Does anyone know how to adjust the expansion valve???)"

Neither the compressor output nor the superheat setting of the expansion valve are limiting factors on 911's; instead concentrate on condensing efficiency, air flow to the cab from the evaporator and then evaporator efficiency.

Cheers, Jim

Last edited by Jim Sims; 09-26-2006 at 11:32 AM..
Old 09-26-2006, 11:25 AM
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