ljn21

I just switched tires on my wifes C300 sport - had the Michelin oem's on and decided to try the Toyo Proxes4 - car is night and day different. Handling is much sharper, ride is smoother, and so so much quieter. Tires look great and are ultra high performance all terrain tires - worked great in the rain the other day. Will report on the snow traction once winter arrives.

Kieffer

Thanks for the information. I'm thinking that the Dynamat approach along with new tires is definitely the way to go. I'll check these tires out online. I'd also come across some Kuhmo tires that people rave about on tirerack.com - saying they were quiet, good handling, etc. I'm not too worried about snow, as I have a Jeep for those days / months.

Sentosa

Nope, tyres make the difference.

Glyn M Ruck

Also remember that non rotated tyres get noisier as they wear - increased pumping noise. People tend to compare old tyres with new ones - memory lapse!

misterng

Tires test by Car & Driver

http://www.caranddriver.com/reviews/...mparison_tests

iblaho

Who has a good memory for the noise of new/worn Michelin Primacy HP's? They are on the back and are silent compared to my OEM Pilot Primacies. I couldn't use my bluetooth headset for work with the OEM's. Will they stay quiet?

All this info feels like quarters dumping out of a slot machine. I am going to get some thin, adhesive insulation for the trunk. I put a full-sized spare in the trunk and will queeze in as much as I can. The tool tray slides around becase I can't screw down the the spare tire anymore. It's getting insulation, too.

german-anger

Any ideas on a cheap and decent R-compound tire or semi slick for the occasional track use??

Cerano

Im driving a C200k with Pirelli P Zero Rossos

Its quite loud on the highways

But its silent on normal roads.

Glyn M Ruck

There are no great secrets to quiet tyres. The design elements are all pretty obvious & quiet tyres may not offer the best in class performance in very wet or snow conditions although this can be ameliorated by broad rotary water grooving.

Quiet tyres should be non directional so that they can be rotated to change rolling direction. They should have broad unbroken rotary tread bands with minor sipes. No big blocks to feather or cup. Any shoulder blocking should be staggered in size to break up harmonics & the compounding & carcass should be relatively pliant.

Michelin PS2, Exalto PE2 & Good Year Assymetrics are typical examples.

Derspeed

I have Contis on mine and as soon as they wear out, I am switching to P Zero Neros. I'll probably get the M+S version. I have had them on other cars and found them to be the quietest performance tires I have ever owned. At the dealership, I saw them on several new Es.

Glyn M Ruck

Yeah! - Conti's are noisy crap & get worse with wear.

iblaho

Well, Glyn M Ruck, you sent me to the tire glossary for this one! I've been waiting for a visual way to guage tire noise in particular. I compared your recommendations to what I saw on-line for my preferred local tire store. I alway learn a lot from you - glad you are here to post on this forum.

ismeto

I do not understand your last sentence exactly what do you mean with these tires because I ordered Michelin PS2 over Michelin Pilot Primacy (2005 version)

Glyn M Ruck

I mean that they are good examples of quiet tyres because all have treads that look like this - see Pilot Exalto pic below. PS2 has almost identical tread & Assymetric also similar with more blocking & thus a little bit noisier than the Michelins.

iblaho

I'm thinking of getting DynaMat in the next few days. I have a large, securely attached tough plastic trunk floor. It sounds hollow when I knock on it, so I am asking it to be removed so the DynaMat can go on the metal underneath it.

I know there are better materials, but a nearby stereo place uses it. My car quieted down with new rear tires. The fact that the difference is so obvious makes me optomistic that I can reduce tire noise from the rear a few decibels.

Let you know what happens.

whiteongrey

Must put dynamat on the metal.

Derspeed

I had some 18" P Zero Nero M+Ss before. They were the quietest tires I have ever used.

kaku

now how about applying that dynamat to the side mirrors !

joshg1001

how are you guys buying the dynamat. are you getting the trunk kit they offer?

iblaho

I just went to Pacific Stereo and had the tech put it in the best way he knew how. $400 California dollars for material and labor. Definitely DIY'able on the C230 if you have the time. Try the eDead material instead?

Yes. The tech touched every nook and cranny. Get this: My spare tire wheel well is fiberglass, not metal. So he padded that, too. He pulled the rear bench. The metal had very thin, laminated sound-deadening material covered by a loose 1/4 inch of padding with foil. It looked a bit like thermal insulation.

Tweezers?

The results: I can hear the high notes on my stereo now. Some of the noise was exhaust noise. A portion of the rear tire noise is gone. The front tire noise is really obvious. I made one Bluetooth call and I was told I sounded clear so long as I raised my voice a little. That was my goal.

I'd like to do the front interior now that I know that it works. The tech was psyched. He took pictures from every angle before he put the trim back on.

JimPap

Kieffer,

Any progress with the dynamat?

Glyn M Ruck

Dynamat is a damn good product!