Updates- Golden goose gets a peaceful cabin
Even though my car didn't have even a single rattle inside or out, its NVH was pathetic compared to the cars of current generation. I had to do something about it, and here comes the plan.
My requirements were
1. Only OEM grade insulation to be used.
2. Insulation shouldn't block any water drainage channel, or come in contact with water, which might eventually cause rusting.
I scanned through the parts manuals of most of the cars, and either the parts were too damn expensive, or were hard to procure.
Insulation Type 1-One thing I noticed in all the MSIL cars, was a SGP insulation mat, which was missing from all the cars which are Made in India. A quick chat with my batchmates at MSIL revealed that it was due to the severe cost cutting which Maruti follows, and only Kizashi and Grand Vitara gets it as factory fit. This was it- my car had to get this.!!
Part number:99611-60A01
Part imported from Japan, on demand, hence will take a bit longer.
Dimensions of a single sheet-1000x800x3(mm)
Price of a single sheet-Rs.3,456
Number of sheets required for my car-2
These sheets were to be used for covering the floor area.
Process of application-
1. Strip down all interior trims, seats etc
2. Carefully degrease and clean the floor
3. Make templates of the floor design
4. Calculate for minimum wastage
5. Cut the sheet and apply. Heating using a heat gun makes the entire process simpler.
Before-
After-
Insulation Type 2-Then I saw some Tufclad branded damping sheets, and since they were extremely VFM, I ordered a set. Costed me approx Rs. 2,000 for all. The kit included-
5 sheets of dimension 50cmx25cm
4 sheets of dimension 25cmx25cm
These sheets were intended to be used on doors, just behind the door pad and on the outer surface of wheel archs. Since the sheets were almost solid, they didn't pose any risk of absorbing and holding water.
Insulation Type 3-Called as sheet silencer in Maruti's part's manual, this is nothing but an inch thick felt sheet. I installed this between the floor carpet and the full floor mat.
Part number-75250M84000
Per unit price-Rs.96
No of units required-5
Insulation Type 4- Rubberized underbody polymer based coating. Unlike a lot of products which claim sound deadening properties, this one truly works in that direction, and the sounds coming from the wheel area like tyre noise, pebbles etc are completely eliminated.
Process of application-
1. Initial washing of underbody
2. Sanding and priming of surface rusts
3. Degreasing of underbody
4. Drying
5. Application of underbody coating
The car is then left for about 2 hours on the lift to dry. The entire process takes about 7 hours to complete.
Insulation Type 5-This was a TATA genuine part, and is basically a heat reflector for Nano, with aluminium sheet on one side and woolen material on the other. I used this to reflect back some heat, and keep it confined to a small area, so that the cabin doesn't receive the heat, and thus the AC cools better. There was a lot of heat coming from the central tunnel, and I was surprised that the insulation worked as intended. Now there is ZERO heat coming from the central tunnel.
Part number-N/A
Part price-Rs. 120 per sheet.
Sheets required-2
After all the processes were done, the difference was mind blowing. I decided to measure it with my mobile. All readings were taken at 5AM in the morning to avoid any stray noises due to traffic etc.
Golden goose also received a coating of 3M's silencer coat.
She also received a new front bumper, thanks to an auto driver.
Total cost incurred-
1. Insulation Type 1= Rs. 3456 x 2= Rs. 6,912
2. Insulation Type 2= Rs. 2,122
3. Insulation Type 3= Rs. 96 x 5= Rs. 480
4. Insulation Type 4= Rs. 800(polymer coating) + Rs. 300( washing charges) + Rs. 400(labour)+ Rs. 300(silencer coating)=Rs. 1,800
5. Insulation Type 5= Rs 120 x 2= Rs. 240
Total cost incurred= Rs. 11,554
After experiencing the results, I can happily say that the 11k spent was not a waste at all.
Thanks for reading!! Comments and suggestions are most welcomed.
Regards,
Shashi