undercoat or "better sound"

[ravedemon]

i'm writing this b/c i was thinkin of installing a material under and on the inside of my car called http://www.quietcoat.com/ i believe that if i install this the overall sound of the motor will sound "beefier" other than rattly from the fiberglass...... also to keep the loud exhaust noise outside the car and to quiet it up a lil on the inside.....also to possibly keep the motor heat out of the cockpit (for summer time), and to help keep the heat in (in the winter) if any one used this or thought of useing it please contact me and steer me in the right direction, so it wouldn't be $500 down the drain...
thanks
Jason

[wmarkley]

Here is another Idea, Go to the hardware store and buy two gallons of Fibered Asphault Emulson and coat the underside of the body using both gallons. You will end up with about one eight inch coating of rubberized insulation costing about $40 dollars.

[REDSC400]

Hi Jason:

If you were to prioritize your desires regarding the noise, exhaust note and heat, which is most important to least important?

1) Beefier Exhaust Note
2) Keep Exhaust Note Outside of Car vs Inside
3) Provide Barrier for Thermal Heat from Motor
4) Provide Heat in Winter

I am not sure there is one good solution (manifested as a single product) for all four of these. And #2 is probably impossible to attain (have you tried ear plugs?) while 3 and 4 seem contradictory. 4 can be achieved with the installation of a heater.

As for 1... add one Big Block.