A/C

Nov 14, 2003 4 Replies
A

Hi



Well no-one has a compressor for sale then.



I have an aftermarket A/C kit on my 98 Disco, works very well. Only thing that Im not so keen on is it drops the engine revs down to about 650 and you can feel the power draw whilst cruising too. Out of curiosity I tried my friends Disco, again 98 300, and thats got the factory air con using a Nippon Denso compressor whereas mines a Sanden, and when thats on there is hardly any loss of idle speed at all. Mine is a manual and his is an auto with EDC, so when his is on does the engine ecu ramp up the fuel slightly to compensate for the power being drawn from the compressor? If it does the transisiton is very smooth! Cheers



Alistair



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A

Yes Andy, there is no interaction, because mines a manual without EDC

Cheers

Alistair

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A

Alistair> engine revs down to about 650 and you can feel the power Alistair> draw whilst cruising too. Out of curiosity I tried my Alistair> friends Disco, again 98 300, and thats got the factory Alistair> air con using a Nippon Denso compressor whereas mines a Alistair> Sanden, and when thats on there is hardly any loss of Alistair> idle speed at all.

I don't know specifically about the disco, but I know that there is an air compressor request signal sent to the engine ECU and this will increase engine torque before the compressor is actually switched on.

I'm guessing this interaction with the engine management isn't a feature of the aftermarket system you have.

AndyC

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L

Ok..practical head on... how about a choke cable appropriately fastened up to adjust the idle and also so that the choke warning light switch activates the air con via a relay...i.e. Air con switched on in one operation.

Lee D

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