Originally Posted by Falcor (Post 905548)

what if someone reads this post and thinks that 370s are noisy!?! I dont want non owners to think its noisy...Give me a break

Originally Posted by shadoquad (Post 905584)

It's not about that, really. It's just that it's an opinion, not a fact. The Z may or may not be too noisy for you. It's subjective to the driver. I don't care what non-owners think. They need to drive the car on their own and form their opinions. I just don't like having words put in my mouth. It's no general consensus. It's an opinion.

Originally Posted by Falcor (Post 905595)

my comment weren't directed at you, they were for some of the "harsher" posters

Originally Posted by Matthew (Post 904668)

Mine was 106db with the wife inside, and 85 without her.

Originally Posted by mengel (Post 905156)

If you don't like the road noise, buy an exhaust, an intake and some high flow cats. Wont here the road noise over that...

Originally Posted by ThoriumHotdog (Post 905172)

Wow. I didn't expect these type of responses after reading the OP.

Originally Posted by SeattleLion (Post 904426)

There is general agreement that the 370Z is noisy. The sport package versions appear to be the loudest. There also is agreement that reducing the road noise would be a good thing.

Originally Posted by shadoquad (Post 905370)

I found the OP's wording to be objectionable. I'm not a big fan of the theory that the car is noisy, but folks are entitled to the opinion. It's when one suggests that it is a consensus that the car is noisy that one is incorrect. It's an opinion shared by some, but apparently not by most.

But I also agree that OP was trying to be helpful in getting a feel for which sound deadening product does the job better. I think that would be helpful for those in the market.

Originally Posted by Falcor (Post 905611)

i think if we can make the ride more comfortable, why not? Personally I wouldnt want to add too much weight to achieve this but if the car is a daily driver some might.

But i think M4A1Mustang is right about the amount of weight that would be needed to significantly reduce noise.

Originally Posted by daisuke149 (Post 905712)

wouldnt need to add a ton of weight, but then costs go up.

A single plexiglass barrier between cabin/trunk area would eliminate alot and then just a lil sound deadening in the doors would probably do wonders.

Issue is, how to make the glass barrier and cost for that. And then where to mount it without drilling etc. Also a removable one would be best IMO. Kinda like T-Tops! but for the inside...

Originally Posted by Falcor (Post 905748)

maybe that would work, but i wouldn't do it. Not only would it kill my sub but i think it would look awful.

Originally Posted by Rui Z (Post 904914)

From Edmund's InsideLine

Nismo 370Z Test Results:

Test Results:
0 - 30 (sec): 2.1
0 - 45 (sec): 3.6
0 - 60 (sec): 5.3
0 - 75 (sec): 7.7
1/4 Mile (sec @ mph): 13.6 @ 103.2
0-60 with 1-ft Rollout (sec): 5.1
30 - 0 (ft): 28
60 - 0 (ft): 115
Slalom (mph): 70.4
Skid Pad Lateral acceleration (g): 0.91
Db @ Idle: 47.1
Db @ Full Throttle: 84.8
Db @ 70 mph Cruise: 72.9

370Z Touring Test Results:

0 - 30 (sec): 2.0
0 - 45 (sec): 3.5
0 - 60 (sec): 5.2
0 - 75 (sec): 7.6
1/4 Mile (sec @ mph): 13.5 @ 103.7
0-60 with 1-ft Rollout (sec): 4.9
30 - 0 (ft): 26
60 - 0 (ft): 108
Slalom (mph): 72.0
Skid Pad Lateral acceleration (g): 0.94
Db @ Idle: 49.2
Db @ Full Throttle: 82.7
Db @ 70 mph Cruise: 70.3


Compared to

Mercedes C350 Test Results:

Test Results:
0 - 45 (sec): 4.0
0 - 60 (sec): 6.2
0 - 75 (sec): 9.0
1/4 Mile (sec @ mph): 14.5 @ 96.5
30 - 0 (ft): 30
60 - 0 (ft): 118
Slalom (mph): 67.6
Skid Pad Lateral acceleration (g): 0.83
Db @ Idle: 43.3
Db @ Full Throttle: 75.8
Db @ 70 mph Cruise: 65.2

Originally Posted by SeattleLion (Post 905761)

I am amazed at the emotional response to a suggestion on how we can put numbers around an issue that a lot of people share. For example, Consumers Reports, Car and Driver, Road and Track, Top Gear.... to name a few all cite the car as noisy. In my original post I didn't say that *I* find the car too noisy, just that if we apply the same kind of approach we use for engine, exhaust, brake mods (numbers!), we can help people who *want* to reduce noise find the best solution.

In answer to one of the adult posts, I suggest the phone be held next to the right ear of the driver. This would probably yield a reasonable baseline.

That's it.

Originally Posted by SeattleLion (Post 905761)

In answer to one of the adult posts, I suggest the phone be held next to the right ear of the driver. This would probably yield a reasonable baseline.

That's it.

Originally Posted by kenchan (Post 905804)

if you're really going to measure db, get a real SPL meter and a good one.

phone + apps can vary over 15dB right off. 3dB is twice the sound level, not 10dB. then add the phone's pre-programmed audio software that calibrates max performance of that mic in that housing, add multi-array setup phones that actually CANCEL noise outside the polar pattern you got basically a super biased reading of your cabin.

kinda like measuing horse power via your butt.