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Old 2nd April 2012, 23:52   #1756
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Default Re: Front windscreen sunfilm?

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Originally Posted by racer_m View Post
You had to burst my bubble right!?
Your bubble ain't broken yet. There are two ways that car manufacturers address cooling in our vehicles sold in India. One is the FORD escort way where the compressor is always on and temperature at the grill is set by mixing hot air that flows over a engine coolant conduit piping situated in the passenger compartment. In other cars like my Junkindica, Palio GTX, Vista and Cruze the compressor cuts off when a set temperature is set. This set temperature is based on a thermistor near the cooling coil which cuts of at +2 degrees in the GTX and in the other cars at about 6 to 8 degrees. In auto AC a variable thermistor is used along with electronics to govern blower motor speed. Remember these temps are at the cooling coil and not at the outlet. Take your poison. If the sudden deceleration worries you when AC cuts in, then buy the car which has the system like the erstwhile Ford escort. In my Junkindica the AC cutting in is a traffic hazard since the engine is so under torqued that when the AC cuts in, its like someone has suddenly engaged the hand brakes.

In both cases though using sun films will reduce strain on the engine if the AC does manage to bring down the car temperature sufficiently enough to cut of the clutch of the AC compressor.

For matters related to fuel efficiency the AC compressor cut off method is used more often by Indian manufacturers.

P.S There are variable capacity compressors available but I doubt they are used in our market. These compressors by innovative methods vary the volume of the compressor such that on hot days or when engine is just started the compressor has higher CC and when temperature reaches set levels the cubic capacity of the compressor reduces.

Last edited by drpullockaran : 2nd April 2012 at 23:56.
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Old 3rd April 2012, 05:54   #1757
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Default Re: Front windscreen sunfilm?

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Originally Posted by racer_m View Post
You had to burst my bubble right!?
I know that fact! I mention that this was the psycho-economical-logical reasoning ..
Relax, my friend .. We all do it at some point. You selected 3M, and that is fine.
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Old 3rd April 2012, 06:20   #1758
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Default Re: Front windscreen sunfilm?

In our hot, sunny and extreme conditions this front sun film is a great plus point. This is the first vehicle on which I have fitted it and no regrets at all. It helps in keeping the dashboard protected and certainly helps with cooling. Also, in the Yeti and suchlike the windscreen slopes more than in the earlier vehicles I ve had - such as the Bolero and Scorpio - and this fact does mean that more direct sunlight gets into the car. Hence the sunfilm is a big plus. Well worth the 6000 odd that I spent for that AR75 film, in my book!
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Old 3rd April 2012, 06:39   #1759
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Originally Posted by condor
Well, the FE is not dependent on the setting. Load on engine by A/c is constant for our vehicles, irrespective of the cooling level you set. Do check related threads for more details.
Well, my Indica comes with a system where the AC clutch disengages often, based on the position of cooling knob. I can hear the AC clutch disengaging and difference in power at the wheels. I guess it depends on the design for each vehicle.
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Old 3rd April 2012, 09:45   #1760
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Default Re: Front windscreen sunfilm?

I dont know how many of you noticed this but after installing the CR70 on the front windshield, at night it isnt all that clear, I mean its a little, for the lack of a better word, dull. Ah BTW I dont have specs and my eyesight is pretty good , seriously since I installed it just a couple of days back, I find the difference very prominent. Not that its a hinderance but its not at all like the dealer promised reduction in glare etc. I got it installed at the 3M store so no complaints on the quality of workmanship or doubts about the originality of the product. On the Positive side the cabin is NOT cooler BUT I can say it take longer to heat up so gives a "sense" of remaining cool and I'm pretty sure its the same for everyone else depending on the front glass area of each car. So after spending all that money you CAN riggle a claim and say "Look Look its actually 2'C lower just behind the front armrest", so its made something cooler.

I have to yet notice any change in mileage since its been just a few days. Not trying to start a debate, I've read a couple of posts earlier but just voicing my opinion.

Last edited by kartikk : 3rd April 2012 at 09:50.
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Old 3rd April 2012, 11:58   #1761
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Default Re: Front windscreen sunfilm?

FYI,

Current Price for 3M CR70 in Delhi (for a civic) is 9000 and V-Cool 70 is 12000.

At this price, which is the better buy?
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Old 3rd April 2012, 12:04   #1762
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Default Re: Front windscreen sunfilm?

Quote:
Originally Posted by mjumrani View Post
FYI,

Current Price for 3M CR70 in Delhi (for a civic) is 9000 and V-Cool 70 is 12000.

At this price, which is the better buy?
CR70 is tested and trusted and comes at a lesser price. If I was at your place, I'ld gone for 3M CR70 with closed eyes.
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Old 3rd April 2012, 12:06   #1763
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Default Re: Front windscreen sunfilm?

Friends,

Im planning to do sunfilms installation for my THAR CRDe front 2 doors, Windshiled and my Scoprio front windshiled.

Please guide me price effective / best variant and a right place in Bangalore to do this job.
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Old 3rd April 2012, 12:44   #1764
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Default Re: Front windscreen sunfilm?

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Originally Posted by drpullockaran View Post
Your bubble ain't broken yet.
In both cases though using sun films will reduce strain on the engine if the AC does manage to bring down the car temperature sufficiently enough to cut of the clutch of the AC compressor.
.

Quote:
Originally Posted by condor View Post
Relax, my friend .. We all do it at some point. You selected 3M, and that is fine.
Well I have to believe that the Figo uses the Ford Escort method. whatever the cooling setting, once the AC button is switched the car goes into the AC load and definitely feels sluggish. So the bubble is not totally burst but has definitely become smaller.



Quote:
Originally Posted by kartikk View Post
I dont know how many of you noticed this but after installing the CR70 on the front windshield, at night it isnt all that clear, I mean its a little, for the lack of a better word, dull. Ah BTW I dont have specs and my eyesight is pretty good , seriously since I installed it just a couple of days back, I find the difference very prominent. Not that its a hinderance but its not at all like the dealer promised reduction in glare etc. I got it installed at the 3M store so no complaints on the quality of workmanship or doubts about the originality of the product. On the Positive side the cabin is NOT cooler BUT I can say it take longer to heat up so gives a "sense" of remaining cool and I'm pretty sure its the same for everyone else depending on the front glass area of each car. So after spending all that money you CAN riggle a claim and say "Look Look its actually 2'C lower just behind the front armrest", so its made something cooler.

I have to yet notice any change in mileage since its been just a few days. Not trying to start a debate, I've read a couple of posts earlier but just voicing my opinion.
I have a different experience. in the afternoon, even If I keep the car under the hot sun for 15 minutes, I have to open the doors and blow out the hot air before I can get in(me having a jet black car also does not help the cause too)
But yesterday I did no such ceremony after the sunfilm application. Could get in and drive away simply starting the AC with the regular settings

Last edited by Vid6639 : 3rd April 2012 at 13:22. Reason: removing bold font.
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Old 3rd April 2012, 12:55   #1765
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Quote:
Originally Posted by racer_m

Well I have to believe that the Figo uses the Ford Escort method. whatever the cooling setting, once the AC button is switched the car goes into the AC load and definitely feels sluggish. So the bubble is not totally burst but has definitely become smaller.
Indeed - Fords - including Figo and Fiesta Classic - use a 'diverter valve' to mix hot and cold air to regulate the temperature. Its cheaper to regulate temperature this way than have an expensive thermostat and relay for cut-off and cut-in.
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Old 3rd April 2012, 13:03   #1766
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Default Re: Front windscreen sunfilm?

Quote:
racer_m : Well I have to believe that the Figo uses the Ford Escort method.
autocrat (Front windscreen sunfilm?): Indeed - Fords - including Figo and Fiesta Classic - use a 'diverter valve' to mix hot and cold air to regulate the temperature.
But cost of the divertor valve ? More than 2k. And dont forget the labor charges !

Having said that, this is the Ford India method - not just Escort, even the Figo, Fiesta-C, and the Ikon use the same approach. And I face that in my Ikon.

But, coming back to topic - the film has helped. Lesser eye-fatigue when driving in the afternoons; and reduced heating.
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Old 3rd April 2012, 14:57   #1767
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Default Re: Front windscreen sunfilm?

Quote:
Originally Posted by kartikk View Post
I dont know how many of you noticed this but after installing the CR70 on the front windshield, at night it isnt all that clear, I mean its a little, for the lack of a better word, dull. ...
No, I haven't experienced this. CR70 all round: at night, I simply don't notice its presence at all.

I am keeping my car covered these days, with the Tyvek cover. It does a good job of keeping the heat out, and it is only a little warm even after all day in the sun.
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Old 3rd April 2012, 15:24   #1768
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Default Re: Front windscreen sunfilm?

Ok, I thought about it and right now I need glare reduction more than heat rejection.

Between CR70 and VC70 which one does that better?
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Old 3rd April 2012, 16:18   #1769
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Default Re: Front windscreen sunfilm?

Am confused whether to get a “anti glare film” installed on the front wind shield of my Swift or not install anything. Purpose of installing is mainly to minimize the glare out of high beams during night. I can live with the heat during the day

Here are my concerns:
a). If the film is installed, will it truly help/serve the purpose? In other words, are they really useful?
b).Am scared of scratches on the wind shield.
c).I read somewhere that some films are “RTO” approved. What % of transparency is recommended especially during night time drive.
d). Is the film installed on the inner or outer layer of windshield?
e).If they do serve the purpose, which brand (out of 3M,Garware,& V-Cool) is recommended? My budget is 5-6k.

Please help guys.
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Old 3rd April 2012, 17:00   #1770
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Default Re: Front windscreen sunfilm?

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Originally Posted by mjumrani View Post
Ok, I thought about it and right now I need glare reduction more than heat rejection.

Between CR70 and VC70 which one does that better?

A good pair of polarized glass in front of your eyes would do the job.
My 2˘ get pair of Serengetis form your local store.
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