Road noise on PPV?

General topics relative to the Caprice and associated vehicles. For items not fitting into other sub-sections in addition to general chat.
pc500
Posts: 21
Joined: Sun Sep 10, 2017 9:42 pm

Road noise on PPV?

Post by pc500 »

I just bought a 2012 PPV. I love the car, but the level of road noise it produces on textured highway pavement is unbearable. Wind noise is not an issue, but road noise is. It is defining loud - Old Jeep Wrangler loud. Make my ears ring for an hour after driving loud.

Is there any way to improve this? Is it the Eagle RSA tires or is it the car?

My 94 caprice by comparison was very quite.
Navy Lifer
Administration Staff
Posts: 1724
Joined: Tue Mar 19, 2013 6:30 pm
Location: Canton GA

Re: Road noise on PPV?

Post by Navy Lifer »

http://newcaprice.com/forum/viewtopic.p ... 7de68#p289" onclick="window.open(this.href);return false;

(I wrote this 4-1/2 years ago--in link above)
I've "re-tired" the OE Goodyears--they're rough & noisy, even at lowered pressure.

Some thoughts/questions:

These cars lack a good bit of sound-deadening material throughout, so there's much to be gained in that area.

Going to the SS spring setup has seemed to moderate some of the harshness, which can translate to noise.

What area of the country are you located, and what are typical road surface conditions? Paved, concrete....?

What tire pressures are you running?
smwalker
Administration Staff
Posts: 2201
Joined: Mon Jul 29, 2013 1:44 am
Location: Azusa,CA

Re: Road noise on PPV?

Post by smwalker »

Hey PC, welcome to the board.

My Sound deadening journey is lightly detailed here:
viewtopic.php?f=20&t=1327&hilit=foam&start=10#p14566" onclick="window.open(this.href);return false;

I can actually have a conversation in my car now where I would have to strain to hear before at freeway speeds.. Extra weihgt but worth it. Still going to try a firewall pad on the underside of the hood, getting up the courage to give that a try, lots of cutting and fitting.
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White
pc500
Posts: 21
Joined: Sun Sep 10, 2017 9:42 pm

Re: Road noise on PPV?

Post by pc500 »

I am in the Pacific Northwest (Seattle). The largest offender is I-5, but it's typical interstate concrete that has become smooth, but coarse over time. It's not noise induced from bumps or irregularities. I get those too but I can deal with them. Rather, it's from older concrete that has turned coarse and sandpaper like.

Tires are at around 42 PSI according to the monitor.

I do know from previous police cars (crown vics) that re-tiring can help with ride quality, but in this particular case the larger issue is the noise.

Navy Lifer wrote:http://newcaprice.com/forum/viewtopic.p ... 7de68#p289

(I wrote this 4-1/2 years ago--in link above)
I've "re-tired" the OE Goodyears--they're rough & noisy, even at lowered pressure.

Some thoughts/questions:

These cars lack a good bit of sound-deadening material throughout, so there's much to be gained in that area.

Going to the SS spring setup has seemed to moderate some of the harshness, which can translate to noise.

What area of the country are you located, and what are typical road surface conditions? Paved, concrete....?

What tire pressures are you running?
Last edited by pc500 on Sun Sep 10, 2017 11:04 pm, edited 1 time in total.
pc500
Posts: 21
Joined: Sun Sep 10, 2017 9:42 pm

Re: Road noise on PPV?

Post by pc500 »

I might give this a try, but it's a lot of labor. I'll admit even in the old caprices, the ones with carpet were notable more quite than the ones without. I wrote this off to the minimal lightweight insulation on the bottom of the carpet.
smwalker wrote:Hey PC, welcome to the board.

My Sound deadening journey is lightly detailed here:
viewtopic.php?f=20&t=1327&hilit=foam&start=10#p14566" onclick="window.open(this.href);return false;

I can actually have a conversation in my car now where I would have to strain to hear before at freeway speeds.. Extra weihgt but worth it. Still going to try a firewall pad on the underside of the hood, getting up the courage to give that a try, lots of cutting and fitting.
s/c'd cav
Posts: 1382
Joined: Mon May 30, 2016 3:12 am
Location: PHOENIX AZ

Re: Road noise on PPV?

Post by s/c'd cav »

i just took my 14 ppv with 5k on the oe goodyears , there wasnt much road noise unless it was built into the road , ive still got the rubber carpet in mine
Navy Lifer
Administration Staff
Posts: 1724
Joined: Tue Mar 19, 2013 6:30 pm
Location: Canton GA

Re: Road noise on PPV?

Post by Navy Lifer »

pc500 wrote:Tires are at around 42 PSI according to the monitor.
Definitely try lowering pressures to 36 PSI. You may or may not face TPMS alarms, but the system alarm setpoint can be adjusted to prevent nuisance alarm situations.

As Steve mentions, the insulation option is there to help.
AKB360
Posts: 16
Joined: Mon Jul 24, 2017 3:21 pm

Re: Road noise on PPV?

Post by AKB360 »

My factory Goodyears were Loud, didnt know if it was a hud bearing going bad, changed them out with '17 SS Rims and tires road noise virtually gone.
pc500
Posts: 21
Joined: Sun Sep 10, 2017 9:42 pm

Re: Road noise on PPV?

Post by pc500 »

If I'm searching for Craigslist tire/wheel combos, which ones work well?
Silversled
Posts: 270
Joined: Fri Aug 12, 2016 7:13 am
Location: Tampa, FL

Re: Road noise on PPV?

Post by Silversled »

That was my biggest complaint with the stock Goodyear RSA's. I picked up my car from Chicago and drove it to Florida. The noise almost made me bat-sh&# crazy.

I'm now running Continental Extreme Contacts on Camaro 18's and on H&R springs and my PPV is one of the nicer riding cars I've ever owned.
2014 Chevrolet Caprice PPV
2014 Chevrolet Stingray Z51
2016 AMG C63
2015 BMW X5 iDrive 50i
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