Can someone tell comparison of AC in Maruthi 800 & Alto

Since the alto engine is marginally more powerful than that of the 800, with approximately the same weight, the AC of the alto is more effective.

maruti 800
Brakes
Front Disc Brakes
Rear Drum Brakes
Dimension & weight
Fuel Tank capacity 28 (Litres)
Ground Clearance 170 (mm)
Kerb weight 665 kg (BS I l & BS III)
Overall Height 1405 (mm)
Overall Length 3335 (mm)
Overall Width 1440 (mm)
Wheelbase 2175 (mm)
Engine
Displacement 796 (cc)
No. cylinders / arrangement / Valves 3 cylinder, in-line, 6 valves
Type Water cooled SOHC (1C2V)
Performance
Max. Power 37 bhp 5000 rpm
Max. Torque 59 Nm 2500 rpm.
Steering
Min. Turning Radius 4.4 (m)
Type Rack & Pinion
Suspension
Front McPherson strut & coil spring
Rear Coil spring with gas filled shock absorbers
Transmission
Transmission type 4 speed manual, forward & all synchromesh
Tyres & Wheels
Tyres 145 / 70 R-12 (Radial)


Comforts
Airflow controls
Back door lock
Cabin light (3 positions)
Center box with lid
Clear lens headlamps
Clear lens rear combination lamps
Coin receptacle
Dual Tone Interior Upholstery
Engine with 32-bit ECM
Floor & luggage room carpets
Front & rear assist grips
Front door pocket (only LHS)
Front wipers (2 speed + Intermittent)
Glove compartment
Halogen bulbs
Hi-Tech Engine Ultra-refined
Inside rear view mirror
Lockable fuel lid
Moulded roof lining
New head restraints
Outside rear view mirror (only RHS)
Reclining & Sliding front seats
Stay type fuel gauge
Sun visors on both sides
Windshield washer

Safety & Asthetics
Additional body reinforcements
Collapsible steering column
Front & rear seats belts
Head lamp leveling device
High mount rear stop lamp
Laminated windshield
Side impact beams


alto
Brakes
Type Powerful 8-inch booster assisted front disc brakes halt instantly on braking
Dimension & weight
Front Track 1290 (mm)
Fuel Tank capacity 35 (Litre)
Gross Vehicle Weight 1165 (kg)
Ground Clearance 166 (mm)
Kerb weight 740 (kg)
Overall Height 1460 (mm)
Overall Length 3495 (mm)
Overall Width 1495 (mm)
Rear 1290 (mm)
Wheelbase 2360 (mm)
Engine
Displacement 796 (cc)
No. cylinders / arrangement / Valves 3 cylinder, in-line, 4 valves per cylinder
Type FC Engine, MPF l
Performance
Max. Power 47 bhp 6200 rpm
Max. Torque 62 Nm 3000 rpm
Steering
Min. Turning Radius 4.6 (m)
Type Power steering.
Suspension
Front McPherson Strut with torsion type anti-roll bar
Rear Coil spring with double action telescopic shock absorbers
Transmission
Transmission type 5 speed manual, all synchromesh
Tyres & Wheels
Tyres 145 x 80 R 12''


Comforts
Air Conditioner with heater
Cabin lamp
Electronic multi-tripmeter
Fabric Seat
Front door pockets
Glove box
Lower front console with cup holders
Lower rear console
Luggage compartment carpet
Moulded carpet
Moulded door trims
Outside rear view mirror (RHS)
Remote fuel lid opener
Tinted glass
Towing hook

Safety & Asthetics
20cm booster assisted brakes
Collapsible steering coloum
Front & rear seat belts
Halogen head lamps
Head lamp leveling device
High mount stop lamp
Rear door child safety lock
Rear seat head restraints (Integrated)
Side impact door beam (Front & Rear)

Since i've used both cars , l can guide you better .
SInce Alto is engine has 4 valves per cylinder whch makes it engine give max output of 47 bhp while 800 gives only 37bhp , this extra power helps in running AC more effectively , also the specs of AC of alto are much higher than 800's.
l hope i'm clear enough.

The AC in Maruti Suzuki Alto is superior to the 800 MX
M 800 AC: Single way output DC supply
M Alto LX: Duplex way output with simultaneous cooling & AC/DC optional supply.
When the car engine is turned off, the AC draws power from the Dynamo & switches from DC to AC when the engine is turned on.
In alto, both the channel ducts for ACs can be operated at the same time, while in 800 MX after one duct is cooled, it switches off so that the power can be used in order to cool the other duct.
the Alto is better than the 800.

The Alto is AC is much more powerfull & effective than the M800 is AC.
There r two main reasons for the same..
Firstly, The compressor of Alto is bigger in capacity than the M800's.Thus it has more cooling efficiency & can cool more area than the 800 is AC.However, as the interior space amongst the two cars is not much, therefore Alto has better cooling performance.
Secondly in M800, there r only 3 AC grills on the Dashboard, whereas Alto packs 4 grills.This results in more effective circulation of cold air & hence more cooling..
Also due to larger cubic capacity of Alto compressor, Air is circulated in a better manner than in M800.

Ofcourse the engine is better tuned to handle bigger AC unit..Also Alto has a 32 bit Microprocessor, whereas M800 does with a 16 bit Microprocessor & this results in a overall better performance in all respects..

Moreover, Alto has a 4 valve per cylinder architecture whereas M800 has only 3 valves per cylinder.