Wheel well insulation

[PNW FRS]

Any thoughts on wheel well spray insulation to cut down road (tire) noise a bit?

[Flat Black VW]

extra weight.

[_hollywood]

I think some lexus models have a layer of carpet on the underside of the wheel wheels to cut down on road noise, i wouldnt recommend spray on, its heavy and messy....

And by carpet i mean all weather type material, not shag carpet, lol

[roddy]

Spraying something in there could lead to problems in time. If you are thinking of using a tar like spray or rocker guard, that stuff can eventually crack. When it does, it will allow water to get through, then hold it there, causing rot. The best fix would be to remove the interior panels and apply dynamat or a similar product to the inside of the wheel well. It is more work this way, but the results will be much better.

[pixel67]

Originally Posted by roddy

Spraying something in there could lead to problems in time. If you are thinking of using a tar like spray or rocker guard, that stuff can eventually crack. When it does, it will allow water to get through, then hold it there, causing rot. The best fix would be to remove the interior panels and apply dynamat or a similar product to the inside of the wheel well. It is more work this way, but the results will be much better.

i used fatmat and it made a very noticeable difference

[BRZranger]

Originally Posted by pixel67

i used fatmat and it made a very noticeable difference

I seem to get a bit more road noise since lowering. No likey.

It seems like it would be a simple install, remove wheels and should be able to unscrew the wheel wells right?

Any chance the fatmat or insulator could end up absorbing water? How much has it reduced road noise?

[JonnyRocket]

Originally Posted by brzranger

I seem to get a bit more road noise since lowering. No likey.

It seems like it would be a simple install, remove wheels and should be able to unscrew the wheel wells right?

Any chance the fatmat or insulator could end up absorbing water? How much has it reduced road noise?

Woah there! These insulators (fatmat, dynamat, etc) go INSIDE the car. You remove the interior panels and carpet and apply them to the car body from the inside.

See:

[BRZranger]

Guy on a Corvette forum put some duct insulation under the rear wheel wells, said it did reduce the road noise.

Corvette Wheel Well insulation

[dori.]

Originally Posted by JonnyRocket

Woah there! These insulators (fatmat, dynamat, etc) go INSIDE the car. You remove the interior panels and carpet and apply them to the car body from the inside.

See:

FC3S! man I miss that car.

[pixel67]

Originally Posted by brzranger

I seem to get a bit more road noise since lowering. No likey.

It seems like it would be a simple install, remove wheels and should be able to unscrew the wheel wells right?

Any chance the fatmat or insulator could end up absorbing water? How much has it reduced road noise?

The wheel well covers are plastic so i removed the pop rivets and squeezed my hand up between the plastic cover and wheel well itself. i put a few squares of fatmat on the metal itself and a few more squares on the inside of the plastic cover, then reinstalled the pop rivets. This was the last step in my fatmat application and made the biggest difference (took test drives after completing each section).