road noise

[AMSOILGUY]

Well the weather has finally been nice enough to get my car out. I had DSE minitubs put in over the winter and the road noise is horrible over 40 MPH. Other then the new tubs I didn't change anything. So I guess i'm wondering what my options are with helping the road noise?
Jacob

[jy211]

dynamat the floor?

[Sieg]

Spray sound deadening undercoat the wheelwell. Dynamat or similar on the interior side. I also installed a sound barrier of 3/8" commercial fiber carpet cushion in the back of my rear seats which made a noticeable difference.

[GregWeld]

........ Dynamat or get yourself a Prius.



If it was mine... I'd install louder mufflers.

[AMSOILGUY]

Prius won't cut it. Thanks for the replys. You all confirmed what I was thinking on the dynamat but I wasn't sure if something else might work better.
Jacob

[Sieg]

Originally Posted by Amsoilguy

You all confirmed what I was thinking on the dynamat but I wasn't sure if something cheaper might work better.
Jacob

Fixed

[AMSOILGUY]

Well I got a few minutes to work on this so I thought I would post some pics so those that read it know what I did and i'll post up my results. So I ended up going with the dynamat and dynaliner.

Then I thought I might as well snap a few photos of the new DSE tubs that I had installed.

I should have some install pictures soon I hope!

[69x22]

All these sound deadners mentioned will help tremendously. Something to keep in mind a wider tire with the aggressive tread pattern will also be noisy no matter what. I took the Pilot Sports off the back of my car and installed a set of Hoosier drag radials with 2 grooves. The first thing I noticed was how much quieter the car is.

[Ripped]

I have a ton of sound deadener, in my car.

Where I get noise, being an older car, is;

#1 Wind Noise. The old windows do not seal air tight, and there is a ton of tubulent air around the vent windows, roof drip rail, chrome trim and mirrors.

#2 Engine and header noise. More solid motor mounts and headers contribute to some noise, and exhaust. I wrapped the mufflers and primary exhaust pipes with header wrap (that worked)

#3 Suspension noise, rod ends, firmer rubber bushings contributes to more direct transfer of road noise.

Only the wind noise really bothers me. Even if you have the windows down a crack at freeway speeds, you cannot even talk to your passenger. Radio = forget it. I have a/c bu my wife insists on having a window down, usually (I don't bother arguing )

[SLO_Z28]

Id be willing to bet a lot of the noise is your tires. What condition are they in? Can you describe the noise?