Ear Plugs

[John]

How often do you wear ear plugs in your GT40 when you're driving on public roads?

I wear them every time.

 

[Jim Craik]

I wore them once, on my first drive, from Reno NV to the bay area, after that, although loud, the plugs were uncomfortable and the noise was not that bad.

After a few months, I put Dynamat, bubble insulation on the firewall and filled some voids with foam. This made a huge difference in noise and heat. But by far the best thing was the thick Lexan, firewall window, big improvement.

 

[Mike]

I love the sound of my Roush 427R. No dynamat or other soundproofing. No earplugs for me. That's part of why I love the car.

Mike

 

[John]

Crazy as it may sound, I like putting the ear plugs in. Makes me feel like the real thing.

 

[Kevin L]

I infuse mine with speakers so I listen to my iPod until the skinny pedal is put to the floor.

 

[Mike]

Mine was too tame so I installed megaphones

 

[Richard]

I have used ear plugs but found ear buds and some great driving music better but only if I'm going to be driving for more than hour.

 

[Rich E.]

Almost 8K miles and not one with a covered ear. The wife on the other hand, she won't get in the 40 without her Ipod

 

[Rick Muck- Mark IV]

But by far the best thing was the thick Lexan, firewall window, big improvement.

I still have the upgraded glass bulkhead window with thicker rubber edge seals available (hint, hint....shameless self promotion!)

I have about twenty of these out in the field on SPF 40s and have had good reports back.

 

[Robert S.]

I still have the upgraded glass bulkhead window with thicker rubber edge seals available (hint, hint....shameless self promotion!)

I have about twenty of these out in the field on SPF 40s and have had good reports back.

Send me info or a link please. Thanks, Robert

 

[Dave Hood]

Dennis Olthoff installed thicker glass on the bulkhead window and that made a fair difference. The GT40 is quieter for the driver than a Cobra. Still more than 100 decibles when driving on the highway, however. Just depends on how quickly you want to lose your hearing. I wear earplugs for longer drives.

 

[Grady]

I don't wear ear plugs because of additional noise control materials in the car. One of the materials we manufacture is for noise control and absorption. I have downloaded an App called Sound Meter from Smart tools on my Droid. CAT uses the system in there equipment. I also have an NIST instrument here at the plant used for noise measurement in the environment, but haven't run a side by side comparison of the two. I feel the app may read a slightly higher reading than the NIST meter. If you want a baseline try the app out.

 

[Tom]

I have downloaded an App called Sound Meter from Smart tools on my Droid. CAT uses the system in there equipment. I also have an NIST instrument here at the plant used for noise measurement in the environment, but haven't run a side by side comparison of the two. I feel the app may read a slightly higher reading than the NIST meter. If you want a baseline try the app out.

Speaking of sound meters, for those with iPods, there's a free app called db from Skypa. You can download it from iTunes, just do a search on decibel meter. You can record a sound session in your car for a base line, then compare the trend after you make changes.

I like to stay connected to my car and hear what's going on with the motor and any other noises (suspension) that might develop along the way. However, I have used the foam ear plugs on extended road trips in the Cobra (6 days for Cruise Colorado), when it's windy and we're on a fast stretch of open road. My hearing's already shot from being around jet or turbine aircraft for so many years. :shout:

 

[40 Bud]

Back in the day Ray (at GTD) experimented with an air gap, double pain bulkhead window. It seemed to help but took a special sub frame to mount.