murtro

It strikes me that most of the cabin noise is road noise particularly on rough pavement. I have the block it drop in mats and I think they help a bit.

I'm wondering if anyone has tried any type of undercoating inside of the wheel wells. I would think that a Line-x type of product inside the wheel wells would prevent the noise from entering the cabin to start with?

Thoughts?

vbdenny

If road noise bothers you in a Corvette your hearing much be much better than mine. Fairly quiet car for one with such fatty tires. Nearly as quiet as my previous Lexus.

LT4CMG

Best answer is rip out the interior and Dynamat every surface. Several threads around here by brave soles who did this themselves. Another option is to sell your block-it to me and trade the vette for a CT6, already fully insulated.

ea327

Or... Just get a convertible

murtro

Yes I've read all about Dynamat. Wouldn't an exterior solution in the wheel wells be easier and more effective actually?

murtro

Targa top is the best of both worlds IMHO - particularly with the transparent top!

LT4CMG

Problem is, they already swapped the plastic for the "carpeting" in our wheelwells to quiet things down. Unless you have someone manufacture thicker, quieter wheelwell liners to exact specs, I can't see how it would work. Even then, saving weight was the driving force behind the c7, not luxury and silence. We still lack a lot of insulation. That got traded for weight savings.

LimeRock

I thought about doing that but the weight of the product on the thin material might be an issue. Was going to take the liner out and spray the insides of the body.

But I got some mat on sale and went to town instead.

Panhead51

The easiest and cheapest solution for me was to just turn the radio up.

FLATJ

Bought a Jake rear cargo area mat and it took the edge off the road noise.

Yellow1980

I've had an after market rear cargo mat since day one, and never thought there was a road noise issue. Quieter than my 1980 was.

joemessman

Drive a McLaren 570s if you want road noise. More than my C7. That is just part of the bargain if you want a full blown sports car. Just sit back and enjoy it. You'll get used to it.

3 Z06ZR1

Your right smooth roads ok. But a lot of highways are noisy.
Non run flats help a small amount.
IMO Not even close. Corvette is noisy compared to any Lexus.
I'm owning Corvette number 9 right now and they all had tire noise. Esp on certain road surfaces.

NSC5

Your least invasive solution is a quieter set of tires. The block it mat was enough for me in my Z06 but if you want to knock it down further Dynamat or other damping will help.

If you want much quieter then you end up with something like a CTS-V and all of the weight that goes with making a quieter cabin. GM caught a bunch of flack when the C7 (and especially the Z06) were introduced because of the weight and any significant sound deadening is going to add significant weight.

Also be careful when looking at different noise deadening solutions how the improvement was measured because both the frequency and the precise characteristic of the noise have a lot to do with how we perceive its irritation level and a simple measurement of peak reduction in db doesn't tell you much. A great example is the use of white noise and similar sound machines that mask an irritating noise with a more pleasant sound, the peak loudness is higher but it is of a characteristic that humans find non-irritating.

murtro

I have one too - and you are right - the road noise isn't back unless you are on rough payment. Just looking for ideas for further easy improvement if possible.

Crazy Cowboy

Our Extreme insulation kit cuts interior noise levels better than any other kit out there that I'm aware of. You could go completely crazy like we did on one C6 years ago and remove wheel well liners, rubberized sound deaden the under side of the entire car even removing the exhaust and plate to insulate with high-temp insulation in the torque tube tunnel. I can tell you that car was quieter than my 2014 BMW M6 inside but it was more work than I would do again.

Our Extreme Kit for the C7 drops interior noise levels about 10db on average which is A LOT. We've been selling our Pre-Cut insulation kits for over a decade and well over 1,000 forum members alone have installed them or had them installed. The Extreme Kit started with the C7 in late 2013 and has been our biggest seller yet. We are currently waiting on material to arrive Tuesday sometime so we're offering $35 off on the Extreme Kit if ordered before the end of the weekend. (just email or put a note in the payment comment to get the discount refunded back to you )

Here's a video I made recently. It's more to show you the db reduction with a meter than the actual sound because through a computer speaker or even a stereo speaker system you would never get an accurate interpretation of the noise levels. I can tell you that phone calls, simple conversations, and just quiet time highway cruising on road-trips is so much quieter and relaxing.

http://www.exoticvette.com/page-13831341.html

fsvoboda

There are a lot of threads on this, and I agree that it's road noise you're hearing if you own a coupe. I put a Weathertech mat on top of the cargo compartment carpeting, and installed Hush Mat on the vertical bulkhead behind the seats, and the noise was much, much improved.

Some people do a full installation of Hush Mat or similar on the entire interior, but that's time consuming and expensive if you have it done professionally. What I did took about an hour.

pwj155

I used rattle trap with frost king on top of that from the bulkhead back, what a difference it made!