Fast Intentions on NISMO

Hotrodz · 02-26-2014, 08:43 AM

I would also retighten all the nuts and bolts on the exhaust. I had one bolt come totally undone and after tightening everything up, the only real noise is from light weight flywheel.

ohohoh123456 · 02-26-2014, 01:33 PM

Quote:

Originally Posted by Hotrodz

I would also retighten all the nuts and bolts on the exhaust. I had one bolt come totally undone and after tightening everything up, the only real noise is from light weight flywheel.

Gonna try Rangerz's method first cuz I don't have jack stand (i feel unsafe to crawl under the car on my own..). If it doesn't solve, I may go back to the installer and figure out where the buzz come from.

Crayon · 02-26-2014, 02:37 PM

Quote:

Originally Posted by Hotrodz

I would also retighten all the nuts and bolts on the exhaust. I had one bolt come totally undone and after tightening everything up, the only real noise is from light weight flywheel.

Is that the odd noise that goes away when I push the clutch in? If so, it's the noisiest single aspect of any car I've ever had, not counting things that are supposed to be noisy (engine/exhaust sounds).

ohohoh123456 · 02-26-2014, 03:23 PM

Quote:

Originally Posted by Crayon

Is that the odd noise that goes away when I push the clutch in? If so, it's the noisiest single aspect of any car I've ever had, not counting things that are supposed to be noisy (engine/exhaust sounds).

I think this noise comes stock. Just get a loud exhaust setup. I always notice it before, now I simply can't hear it anymore.

critical · 02-26-2014, 03:29 PM

mine vibrates on cold start. i have a little "dynomat" too. i wouldn't say i have any drone driving on the highway though. maybe if the rpms were at 2k..

Hotrodz · 02-26-2014, 10:04 PM

Yup, it will rattle at very low RPMs when in first or second gear and you are at a slow roll....

Rangerz · 02-27-2014, 06:06 PM

Hey oH,

When I did that vid I think knocked off the foam where the bottom plastic connects to the upper portion. For me the major source of the BUZZ. I re did mine at that connection and it's gone. H2O doc said he used felt I think that would work well too for that joint.

let us know if that hooks you up.

ohohoh123456 · 02-27-2014, 08:03 PM

So....first of all thanks guys for all of your inputs. I'm back with my results

Special thanks to RangerZ. But unfortunately it didn't solve the problem.

So I took that piece of panel off and tried, still had buzz.

Then I took all the panels off hatch door (the piece I foamed up and the u-shape pieces behind it). The buzz was still there.

So now I'm stuck clueless. Anymore inputs? I did nail the rpm range to >1.8k and <2.3k

Video coming right up~

ohohoh123456 · 02-27-2014, 08:12 PM

Here comes the sound clip. By the way I didn't try to control the rpm in this video. If I control it to be in the "buzzing" zone, it can and will buzz all day long. Gets even louder after pipes are warmed

Rangerz · 02-27-2014, 09:27 PM

Yea thats not what my rattle sounded like. It almost sounds like the lisence plate. All the tools are nice and tight? Cubby behind passenger seat empty etc... sorry man. Can you get somebody to ride along with you at the buzz rpm and push on different panels, parts etc to narrow it down. Just guessing here

ohohoh123456 · 02-27-2014, 09:34 PM

Quote:

Originally Posted by Rangerz

Yea thats not what my rattle sounded like. It almost sounds like the lisence plate. All the tools are nice and tight? Cubby behind passenger seat empty etc... sorry man. Can you get somebody to ride along with you at the buzz rpm and push on different panels, parts etc to narrow it down. Just guessing here

yeah. I think that's what I'm planning to do. But I wasn't expecting to do that today....

ohohoh123456 · 03-04-2014, 10:27 PM

So with my friend's help I think I pinpointed the buzzing from the hatch lock. I taped my cellphone onto the metal piece which is securing the lock in place and I think I found that to be the piece rattling/buzzing. I took it off and kinda fabricated some "dynamat" from my old mouse pad, pulled some holes on it and put it behind the metal piece to prevent it from touching car's metal cabin. Hopefully the buzzing will be gone because I broke a screw driver and my hands are full of calluses from all the untightening and tightening.

Rooskey · 03-07-2014, 10:55 PM

I get a seldom dash vibration when the rpms get around 4k at full throttle. Besides that its all good. I have the 18" resonators on my FI exhaust.

ohohoh123456 · 03-07-2014, 11:46 PM

Confirm problem fixed

now I get a very mild "mouse pad" flappy sound. very easy ignored.

Quote:

Originally Posted by Rooskey

I get a seldom dash vibration when the rpms get around 4k at full throttle. Besides that its all good. I have the 18" resonators on my FI exhaust.

yes I have this too. Those are easily covered by a little music. although I usually make my music loud

Airwalk · 03-08-2014, 06:34 PM

Well I'm glad you were able solve your problem, but now I have one. I was thinking of getting the FI exhaust but with what it seems like a common problem of rattles hissing and unknown noises I'm a little hesitant. I've gotten exhausts on other cars and never had problems with them. These are special made for the Z and come from the factory with these issues puts pause in me. Other than the noise do you like the exhaust , sound and power?

02-26-2014, 08:43 AM	#31 (permalink)
Hotrodz Premium Member Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684384	I would also retighten all the nuts and bolts on the exhaust. I had one bolt come totally undone and after tightening everything up, the only real noise is from light weight flywheel. __________________ *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\|

02-26-2014, 03:29 PM	#35 (permalink)
critical A True Z Fanatic Join Date: Oct 2012 Location: Washington Posts: 1,252 Drives: 09' 370z 7AT Rep Power: 15	mine vibrates on cold start. i have a little "dynomat" too. i wouldn't say i have any drone driving on the highway though. maybe if the rpms were at 2k.. __________________ Quaife w/ gears \|Stillen Gen 3\|SOLD FI Resonated Test Pipes \|SOLD FI 18'' \| 25row Stillen Race \| Progress 35mm/25mm sways \| Swifts/Koni\|Volk G25's\| Stoptech SS lines\|\|SPL Front/Rear Arms\|

02-26-2014, 10:04 PM	#36 (permalink)
Hotrodz Premium Member Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684384	Yup, it will rattle at very low RPMs when in first or second gear and you are at a slow roll.... __________________ *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\|

02-27-2014, 06:06 PM	#37 (permalink)
Rangerz Enthusiast Member Join Date: Jun 2013 Location: Northern Utah Age: 58 Posts: 476 Drives: 2012 370 Nismo Rep Power: 11	Hey oH, When I did that vid I think knocked off the foam where the bottom plastic connects to the upper portion. For me the major source of the BUZZ. I re did mine at that connection and it's gone. H2O doc said he used felt I think that would work well too for that joint. let us know if that hooks you up. __________________ 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

02-27-2014, 08:03 PM	#38 (permalink)
ohohoh123456 Enthusiast Member Join Date: Jun 2013 Location: (‧‧)nnn Posts: 329 Drives: a Baby Rep Power: 11	So....first of all thanks guys for all of your inputs. I'm back with my results Special thanks to RangerZ. But unfortunately it didn't solve the problem. So I took that piece of panel off and tried, still had buzz. Then I took all the panels off hatch door (the piece I foamed up and the u-shape pieces behind it). The buzz was still there. So now I'm stuck clueless. Anymore inputs? I did nail the rpm range to >1.8k and <2.3k Video coming right up~ __________________ 13 NISMO\|Magma Red\|F.I. TDX 12''+NRHFC\| Last edited by ohohoh123456; 02-27-2014 at 08:45 PM.

02-27-2014, 08:12 PM	#39 (permalink)
ohohoh123456 Enthusiast Member Join Date: Jun 2013 Location: (‧‧)nnn Posts: 329 Drives: a Baby Rep Power: 11	Here comes the sound clip. By the way I didn't try to control the rpm in this video. If I control it to be in the "buzzing" zone, it can and will buzz all day long. Gets even louder after pipes are warmed __________________ 13 NISMO\|Magma Red\|F.I. TDX 12''+NRHFC\| Last edited by ohohoh123456; 02-27-2014 at 08:15 PM.

02-27-2014, 09:27 PM	#40 (permalink)
Rangerz Enthusiast Member Join Date: Jun 2013 Location: Northern Utah Age: 58 Posts: 476 Drives: 2012 370 Nismo Rep Power: 11	Yea thats not what my rattle sounded like. It almost sounds like the lisence plate. All the tools are nice and tight? Cubby behind passenger seat empty etc... sorry man. Can you get somebody to ride along with you at the buzz rpm and push on different panels, parts etc to narrow it down. Just guessing here __________________ 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

03-04-2014, 10:27 PM	#42 (permalink)
ohohoh123456 Enthusiast Member Join Date: Jun 2013 Location: (‧‧)nnn Posts: 329 Drives: a Baby Rep Power: 11	So with my friend's help I think I pinpointed the buzzing from the hatch lock. I taped my cellphone onto the metal piece which is securing the lock in place and I think I found that to be the piece rattling/buzzing. I took it off and kinda fabricated some "dynamat" from my old mouse pad, pulled some holes on it and put it behind the metal piece to prevent it from touching car's metal cabin. Hopefully the buzzing will be gone because I broke a screw driver and my hands are full of calluses from all the untightening and tightening. __________________ 13 NISMO\|Magma Red\|F.I. TDX 12''+NRHFC\|

03-07-2014, 10:55 PM	#43 (permalink)
Rooskey Track Member Join Date: Jul 2010 Location: South Carolina Posts: 974 Drives: 2014 Alpha7 GTR Rep Power: 15	I get a seldom dash vibration when the rpms get around 4k at full throttle. Besides that its all good. I have the 18" resonators on my FI exhaust.

03-08-2014, 06:34 PM	#45 (permalink)
Airwalk Base Member Join Date: Feb 2013 Location: norristown Posts: 52 Drives: 2009 Nismo 370Z Rep Power: 12	Well I'm glad you were able solve your problem, but now I have one. I was thinking of getting the FI exhaust but with what it seems like a common problem of rattles hissing and unknown noises I'm a little hesitant. I've gotten exhausts on other cars and never had problems with them. These are special made for the Z and come from the factory with these issues puts pause in me. Other than the noise do you like the exhaust , sound and power?

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