Mehran ac compressor suggestion

[hassaaniqbal92]

salaam

last year I had installed the ac system in my petrol driven mehran. it was a chinese system with mitsubishi rotary compressor. the cooling was just average. for this past one year the performance remained constant with no problems. The car never took load, never heated up and fuel economy was also unaffected. but now I feel that the cooling needs improvement. showed it to a couple of technicians and all of them blamed the compressor. they said that the gas level is full but the compressor installed is not a very strong one. I was offered 3 options from compressors:

sanden sd 505 (piston)
denso terios kid (rotary)
duet compressor. (rotary)

please recommend the best of these options.

[turbo_charge]

Go for denso

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[hassaaniqbal92]

Bump!!!!!!!

[exo]

The new senden unit will cost you more, it will come with mounts for a mehran so installing it would be easier, but you would make the same complain of insignificant cooling and the piston compressor will put more load on your engine. Where as the rotory compressor from a jdm seems like a good option and will put less load on your engine.
I too was faced with the same dilemma a year ago, but i found out that the rotory couldnt be fitted onto a carby mehran, the mechanic said you need an efi engine to adjust rpm at a slightly higer level for the rotory unit so I ended up getting the piston compressor and wasnt impressed.
I would suggest you test out a car with a denso unit installed to see if what you are expecting is even possible with a mehran(no offence).