Fast Intentions on NISMO

ohohoh123456 · 02-24-2014, 03:12 PM

Hey guys,

Just installed F.I. on my NISMO. I have a question here: Does your cabin vibrates when you are accelerating?

I have 12''+ Non-res HFC. The drone from below 3.5k rpm is killing the car. The whole cabin vibrates and I can hear the shaking, especially the rear wing section was really singing with the exhaust. I can live with the hiss and the loudness, but the shaking+metal clunks makes me feel a little uncomfortable.

Don't get me wrong, this is a very good sound system. I feel like I'm sitting on a night club's stereo.

My rear resonates on the seat with my car's rear.
Any thoughts? Thanks guys.

update: not vibration, buzzing.

jcosta79 · 02-24-2014, 03:35 PM

Quote:

Originally Posted by ohohoh123456

Any thoughts?

Earthquake.

Zbrah · 02-24-2014, 03:42 PM

Sounds like my honduh civic back in highschool with its muffler removed. Fun times!

TerribleONE · 02-24-2014, 03:47 PM

Some dynamat in the hatch will go a long way. Also, keep in mind that the exhaust will tame down a little after the first few 100 miles. Not sure how much you have driven it at this point.

ohohoh123456 · 02-24-2014, 03:51 PM

Quote:

Originally Posted by TerribleONE

Some dynamat in the hatch will go along way. Also, keep in mind that the exhaust will tame down a little after the first few 100 miles. Not sure how much you have driven it at this point.

already did 150 or so

ohohoh123456 · 02-24-2014, 03:52 PM

Quote:

Originally Posted by jcosta79

Earthquake.

you can't be in illinois and have that frequent earthquakes...

ohohoh123456 · 02-24-2014, 03:53 PM

Quote:

Originally Posted by Zbrah

Sounds like my honduh civic back in highschool with its muffler removed. Fun times!

the point is: I have mufflers

Zbrah · 02-24-2014, 03:54 PM

Quote:

Originally Posted by ohohoh123456

the point is: I have mufflers

Exactly

jcosta79 · 02-24-2014, 04:40 PM

Quote:

Originally Posted by ohohoh123456

you can't be in illinois and have that frequent earthquakes...

Parkinson's.

Sent from my Nexus 7 using Tapatalk

Armhunter · 02-24-2014, 05:12 PM

I have a little trunk rattle but not much at all.. it changes with the weather too. more rattle in the cold weather.

Chuck33079 · 02-24-2014, 06:10 PM

If you're hearing clunking and metal-on-metal noises, you need to crawl up under there and see where it's rubbing on either the chassis braces or the evap shield.

Rangerz · 02-24-2014, 06:40 PM

I have the same setup as you and got the rattle in the back as well. I pulled the rear hatch plastic and put some one sided foam weather stripping around the perimeter and where the plastic has the step about half way up. The foam I used was 1/4 inch stuff I got from lowes and that did the trick. Once you get 750 to 1000 miles you will notice it mellow a little.

ohohoh123456 · 02-24-2014, 08:53 PM

Quote:

Originally Posted by Rangerz

I have the same setup as you and got the rattle in the back as well. I pulled the rear hatch plastic and put some one sided foam weather stripping around the perimeter and where the plastic has the step about half way up. The foam I used was 1/4 inch stuff I got from lowes and that did the trick. Once you get 750 to 1000 miles you will notice it mellow a little.

Thanks. I've been trying to figure out how to describe the noise. I think the word is "Buzz". The rear really buzzes starts 1.8k rpm up to 3-3.5k.

I don't know why this word didn't come across my mind sooner.

Hotrodz · 02-24-2014, 09:44 PM

Yup, mine does buzz a little, but if I don't wont to hear it, I just mash the gas....it goes away!

Rangerz · 02-24-2014, 09:48 PM

Quote:

Originally Posted by Hotrodz

Yup, mine does buzz a little, but if I don't wont to hear it, I just mash the gas....it goes away!

LOL Nismo on raw meat and roids. I'll bet that sumbitch buzzes just shy of lightspeed.

02-24-2014, 03:12 PM	#1 (permalink)
ohohoh123456 Enthusiast Member Join Date: Jun 2013 Location: (‧‧)nnn Posts: 329 Drives: a Baby Rep Power: 11	Fast Intentions on NISMO Hey guys, Just installed F.I. on my NISMO. I have a question here: Does your cabin vibrates when you are accelerating? I have 12''+ Non-res HFC. The drone from below 3.5k rpm is killing the car. The whole cabin vibrates and I can hear the shaking, especially the rear wing section was really singing with the exhaust. I can live with the hiss and the loudness, but the shaking+metal clunks makes me feel a little uncomfortable. Don't get me wrong, this is a very good sound system. I feel like I'm sitting on a night club's stereo. My rear resonates on the seat with my car's rear. Any thoughts? Thanks guys. update: not vibration, buzzing. Cdb370z likes this. __________________ 13 NISMO\|Magma Red\|F.I. TDX 12''+NRHFC\| Last edited by ohohoh123456; 02-25-2014 at 12:35 PM.

02-24-2014, 03:47 PM	#4 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5850	Some dynamat in the hatch will go a long way. Also, keep in mind that the exhaust will tame down a little after the first few 100 miles. Not sure how much you have driven it at this point. __________________ 638WHP 541WTQ @ 13.5PSI Build thread Last edited by TerribleONE; 02-24-2014 at 03:52 PM.

02-24-2014, 06:10 PM	#11 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	If you're hearing clunking and metal-on-metal noises, you need to crawl up under there and see where it's rubbing on either the chassis braces or the evap shield. DEpointfive0 and SterlingDrive like this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

02-24-2014, 06:40 PM	#12 (permalink)
Rangerz Enthusiast Member Join Date: Jun 2013 Location: Northern Utah Age: 58 Posts: 476 Drives: 2012 370 Nismo Rep Power: 11	I have the same setup as you and got the rattle in the back as well. I pulled the rear hatch plastic and put some one sided foam weather stripping around the perimeter and where the plastic has the step about half way up. The foam I used was 1/4 inch stuff I got from lowes and that did the trick. Once you get 750 to 1000 miles you will notice it mellow a little. __________________ Stillen Gen III/ NST/ Fast Intentions Non-Res HFC & 12" Resonated CF TDX/ Setreb series 9 OC/ SPL upper control arms/ Whiteline front & rear swaybars/ Uprev tuned by Seb@specialtyZ/ 319HP 262TQ/ Z1 PS Cooler/ Z1 SS Premium break lines/ CJM Road Race pump/Carbotech F:XP10 R:XP8 Nismo OC DIY

02-24-2014, 09:44 PM	#14 (permalink)
Hotrodz Premium Member Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684384	Yup, mine does buzz a little, but if I don't wont to hear it, I just mash the gas....it goes away! __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

02-24-2014, 03:42 PM	#3 (permalink)
Zbrah A True Z Fanatic Join Date: May 2013 Location: The370Z.com Posts: 4,956 Drives: 370Z Rep Power: 5451	Sounds like my honduh civic back in highschool with its muffler removed. Fun times!

02-24-2014, 05:12 PM	#10 (permalink)
Armhunter Enthusiast Member Join Date: Mar 2012 Location: bakersfield, CA Posts: 338 Drives: 12 Nissan 370z Nismo Rep Power: 13	I have a little trunk rattle but not much at all.. it changes with the weather too. more rattle in the cold weather.

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