Spayed on more undercoating...waste of time!

kevr6 · 04-12-2009, 04:50 PM

Figured I'd try it since I had some time while wife was away on a turn! There is already some sprayed on from factory, but not much. I covered everything I could...yet I'm not hearing any real difference! (I'm hoping someone hasn't already posted not to bother, I'm to busy at work to sit on here all day!)

Just an FYI:

frost · 04-12-2009, 04:55 PM

I believe someone did do a post on this where they claimed they had no results either, but it's nice to hear it from another person as well.

dad · 04-12-2009, 05:05 PM

Fender Coating to reduce noise

kevr6 · 04-12-2009, 05:05 PM

I guess I'm not keeping up with these power users! Do you know if anyone has tried the interior dynomat scenario?

kevr6 · 04-12-2009, 05:07 PM

Thanks
LOL

AK370Z · 04-12-2009, 05:09 PM

Did you just reply to yourself?

I'm curious to see the dynomat scenario. What happens when it's really hot out? ....

frost · 04-12-2009, 05:11 PM

Like, phoenix hot

joeyz10 · 04-12-2009, 05:34 PM

Just forget the noise, true sports car are really noisy. with my Lotus at 80 mph on the freeway I have to yell to my wife or friend when we're talking. Try Lambo and you can't hear anything you friend talking.. Sports car are just a different breed and built for a different purpose

frost · 04-12-2009, 05:42 PM

^ Different things bother different people, so even though I agree with you, I try not to bust people's chops who find it bothersome (not saying you are, just saying). It actually hasn't bothered me at all, although it was noticeable.

ChrisSlicks · 04-12-2009, 06:09 PM

I think the spray on stuff is mostly to stop the panel from vibrating (deadening), don't think it has huge insulating properties.

I think Dynomat on the interior would work better, it's really heavy and dense and a good sound insulator. It will hurt performance slightly though if you go adding 100 pounds of it.

joeyz10 · 04-12-2009, 06:16 PM

You're right frost but I just to let some people know because I am sick and tired of reading reviews from Edmunds, yahoo, msn and stc saying that the noise is a little bit loud. But for goodness sake it is a freaking sportscar!!! Dont' compare apples and oranges

kevr6 · 04-12-2009, 06:20 PM

Fixed my post! It doesn't bother me all that much, I'm just used to driving Audi/VW product and they don't have this problem. I've been spoiled! I mod each car I get and I know it will get louder with bigger sneakers, being lower to the road, etc... hopefully the exhaust will help in this area.
Sorry for reposting.

frost · 04-12-2009, 06:21 PM

I think that the reviews make mention of that because there is so few negatives to this car, they have to nitpick stuff in order to have any cons to write about.

dad · 04-12-2009, 07:35 PM

Quote:

Originally Posted by frost

I think that the reviews make mention of that because there is so few negatives to this car, they have to nitpick stuff in order to have any cons to write about.

Makes me wonder what the car magazines would bitch about if they didn't have that!

imag · 04-12-2009, 08:05 PM

You know, a factor that no one has brought up is the tires. I'm sure that part of the reason that there's so much pebble noise is because the Z has fairly sticky stock tires - it's how they got the G numbers so high for such a relatively heavy car.

Putting sticky tires on any car will multiply the pebble and gravel sounds tremendously. I'm not saying it's the only factor - Nissan's goal of lighter weight for this car also lead to the drop in sound insulation - but it is a major one. I'll bet cheapo highway tires would cut the racket by 80% (too bad they're only good for burnouts

).

04-12-2009, 04:50 PM	#1 (permalink)
kevr6 A True Z Fanatic Join Date: Feb 2009 Location: N.W. Atlanta Posts: 1,515 Drives: '09 Graphite 370Z 6M Rep Power: 666	Spayed on more undercoating...waste of time! Figured I'd try it since I had some time while wife was away on a turn! There is already some sprayed on from factory, but not much. I covered everything I could...yet I'm not hearing any real difference! (I'm hoping someone hasn't already posted not to bother, I'm to busy at work to sit on here all day!) Just an FYI: __________________ *Beware...* Daily Sliding In My ZLED!

04-12-2009, 05:05 PM	#3 (permalink)
dad Grand Prix of Endurance Join Date: Nov 2008 Location: Tennessee Posts: 3,476 Drives: Mulsanne Straight Rep Power: 26	Fender Coating to reduce noise __________________ We can do without any article of luxury we have never had; but once obtained, it is not in human nature to surrender it voluntary.

04-12-2009, 05:05 PM	#4 (permalink)
kevr6 A True Z Fanatic Join Date: Feb 2009 Location: N.W. Atlanta Posts: 1,515 Drives: '09 Graphite 370Z 6M Rep Power: 666	I guess I'm not keeping up with these power users! Do you know if anyone has tried the interior dynomat scenario? __________________ *Beware...* Daily Sliding In My ZLED! Last edited by kevr6; 04-12-2009 at 06:15 PM.

04-12-2009, 05:07 PM	#5 (permalink)
kevr6 A True Z Fanatic Join Date: Feb 2009 Location: N.W. Atlanta Posts: 1,515 Drives: '09 Graphite 370Z 6M Rep Power: 666	Thanks LOL __________________ *Beware...* Daily Sliding In My ZLED! Last edited by kevr6; 04-12-2009 at 06:16 PM.

04-12-2009, 05:09 PM	#6 (permalink)
AK370Z Administrator Join Date: Sep 2008 Location: NJ Posts: 9,930 Drives: 09 370Z MB Sports M6 Rep Power: 10	Did you just reply to yourself? I'm curious to see the dynomat scenario. What happens when it's really hot out? .... __________________ The370Z Signature Pictures ll Want to rock our forum decals on your car? Then click here! ll How to Embed YouTube Videos In a Post STOP! (Hammertime) ll Become a Premium Member Click HERE ll F.A.Q. Are You a Nissan Dealer? Click Here to Become A "Supporting Dealer" and Start Listing Your 370Zs In Our Inventory Section My Monterey Blue Z ll My Exhaust --> My Intake --> G3 Nissan's Official Response Regarding Oil Temp Issue: CLICK HERE Need a Set of Cheap Winter wheels /Tires? Then Visit The Banner Link Below and Place Your Order. You'll Help Keep The370Z Alive.

04-12-2009, 04:55 PM	#2 (permalink)
frost Retired admin Join Date: Dec 2008 Location: Winterfell Posts: 106,613 Drives: Your Wife Crazy Rep Power: 0	I believe someone did do a post on this where they claimed they had no results either, but it's nice to hear it from another person as well.

04-12-2009, 05:11 PM	#7 (permalink)
frost Retired admin Join Date: Dec 2008 Location: Winterfell Posts: 106,613 Drives: Your Wife Crazy Rep Power: 0	Like, phoenix hot

04-12-2009, 05:34 PM	#8 (permalink)
joeyz10 Base Member Join Date: Mar 2009 Location: SoCal Posts: 248 Drives: 09 370z AT/ RRSS 08/ Rep Power: 16	Just forget the noise, true sports car are really noisy. with my Lotus at 80 mph on the freeway I have to yell to my wife or friend when we're talking. Try Lambo and you can't hear anything you friend talking.. Sports car are just a different breed and built for a different purpose

04-12-2009, 05:42 PM	#9 (permalink)
frost Retired admin Join Date: Dec 2008 Location: Winterfell Posts: 106,613 Drives: Your Wife Crazy Rep Power: 0	^ Different things bother different people, so even though I agree with you, I try not to bust people's chops who find it bothersome (not saying you are, just saying). It actually hasn't bothered me at all, although it was noticeable.

04-12-2009, 06:09 PM	#10 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	I think the spray on stuff is mostly to stop the panel from vibrating (deadening), don't think it has huge insulating properties. I think Dynomat on the interior would work better, it's really heavy and dense and a good sound insulator. It will hurt performance slightly though if you go adding 100 pounds of it.

04-12-2009, 06:16 PM	#11 (permalink)
joeyz10 Base Member Join Date: Mar 2009 Location: SoCal Posts: 248 Drives: 09 370z AT/ RRSS 08/ Rep Power: 16	You're right frost but I just to let some people know because I am sick and tired of reading reviews from Edmunds, yahoo, msn and stc saying that the noise is a little bit loud. But for goodness sake it is a freaking sportscar!!! Dont' compare apples and oranges

04-12-2009, 06:20 PM	#12 (permalink)
kevr6 A True Z Fanatic Join Date: Feb 2009 Location: N.W. Atlanta Posts: 1,515 Drives: '09 Graphite 370Z 6M Rep Power: 666	Fixed my post! It doesn't bother me all that much, I'm just used to driving Audi/VW product and they don't have this problem. I've been spoiled! I mod each car I get and I know it will get louder with bigger sneakers, being lower to the road, etc... hopefully the exhaust will help in this area. Sorry for reposting. __________________ *Beware...* Daily Sliding In My ZLED!

04-12-2009, 06:21 PM	#13 (permalink)
frost Retired admin Join Date: Dec 2008 Location: Winterfell Posts: 106,613 Drives: Your Wife Crazy Rep Power: 0	I think that the reviews make mention of that because there is so few negatives to this car, they have to nitpick stuff in order to have any cons to write about.

04-12-2009, 08:05 PM	#15 (permalink)
imag Enthusiast Member Join Date: Mar 2009 Location: Oakland, CA Posts: 446 Drives: up the wall Rep Power: 16	You know, a factor that no one has brought up is the tires. I'm sure that part of the reason that there's so much pebble noise is because the Z has fairly sticky stock tires - it's how they got the G numbers so high for such a relatively heavy car. Putting sticky tires on any car will multiply the pebble and gravel sounds tremendously. I'm not saying it's the only factor - Nissan's goal of lighter weight for this car also lead to the drop in sound insulation - but it is a major one. I'll bet cheapo highway tires would cut the racket by 80% (too bad they're only good for burnouts ).

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