Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk > S Chassis

S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


Reply
 
Thread Tools Display Modes
Old 09-22-2020, 03:37 AM   #1
97kouki1J
 
Join Date: May 2019
Location: Toronto
Age: 27
Posts: 8
Trader Rating: (0)
97kouki1J is an unknown quantity at this point
Feedback Score: 0 reviews
Sr20+cd009 loud chatter

Hey all,


I own a 1997 240SX with a Notchtop SR20DET & CD009

I'm experiencing what sounds like flywheel chatter noise upon

-Decel, specifically letting off the throttle, in gear, RPM drops.

-5/6 gear low RPM 1800-2500rpm

-Any downshift.

Parts list

Drive Shaft Shop Drive shaft ( confirmed good, balanced, Etc, bought new )
ACT 6 puck clutch ( confirmed good, bought new )
Fidanza Light weight flywheel ( bought new, )
Autotech adaptor plate.

anyone here have any input to decrease the noise?
97kouki1J is offline   Reply With Quote
Sponsored Links
Old 09-22-2020, 04:46 AM   #2
97kouki1J
 
Join Date: May 2019
Location: Toronto
Age: 27
Posts: 8
Trader Rating: (0)
97kouki1J is an unknown quantity at this point
Feedback Score: 0 reviews
Note

I was thinking about buying a OEM Flywheel, balancing it and installing it!
97kouki1J is offline   Reply With Quote
Old 09-22-2020, 05:30 AM   #3
PoorMans180SX
Zilvia.net Advertiser
 
PoorMans180SX's Avatar
 
Join Date: Nov 2005
Location: Michigan
Age: 33
Posts: 5,431
Trader Rating: (16)
PoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfection
Feedback Score: 16 reviews
Send a message via AIM to PoorMans180SX
There will always be increased noise with lightweight flywheels and clutches. This is because you're changing the harmonics of your drivetrain, and different things resonate at different frequencies. A heavy flywheel might help, but it might not. If you really hate it, buy some sound insulation, hah.

Also, make sure your flywheel is tight.
__________________
Build: http://zilvia.net/f/showthread.php?t=643065

Friends don't let friends buy knock-offs.
PoorMans180SX is offline   Reply With Quote
Old 09-22-2020, 06:12 AM   #4
97kouki1J
 
Join Date: May 2019
Location: Toronto
Age: 27
Posts: 8
Trader Rating: (0)
97kouki1J is an unknown quantity at this point
Feedback Score: 0 reviews
haha!

I don't think there is any amount of sound insulation that can block out that rattle.

I read alot of the threads about SR+CD009, and I noticed one thing in common, everyone was using a flyweight, or custom flywheel.

perhaps OEM is worth a shot?

I also noticed the S15 has a dual mass flywheel, what if I installed that?
97kouki1J is offline   Reply With Quote
Old 09-22-2020, 01:04 PM   #5
the_brownie1
 
Join Date: Sep 2013
Location: GA
Age: 33
Posts: 24
Trader Rating: (1)
the_brownie1 is an unknown quantity at this point
Feedback Score: 1 reviews
I have a comp clutch setup (flywheel, clutch disc and pressure plate) its loud, it chatters. I just got use to it. The few folks around me with CD swaps make the same noises.
the_brownie1 is offline   Reply With Quote
Old 09-22-2020, 01:57 PM   #6
97kouki1J
 
Join Date: May 2019
Location: Toronto
Age: 27
Posts: 8
Trader Rating: (0)
97kouki1J is an unknown quantity at this point
Feedback Score: 0 reviews
Quote:
Originally Posted by the_brownie1 View Post
I have a comp clutch setup (flywheel, clutch disc and pressure plate) its loud, it chatters. I just got use to it. The few folks around me with CD swaps make the same noises.
to my understanding some swaps also use the SR20 flywherl like the autotech one

-btw im using the autotech one-

is it possible to ask your friends if anyone has tried a stock oem sr20 flywheel or maybe even a s15 flywheel & clutch combo
97kouki1J is offline   Reply With Quote
Old 09-22-2020, 02:00 PM   #7
the_brownie1
 
Join Date: Sep 2013
Location: GA
Age: 33
Posts: 24
Trader Rating: (1)
the_brownie1 is an unknown quantity at this point
Feedback Score: 1 reviews
Quote:
Originally Posted by 97kouki1J View Post
to my understanding some swaps also use the SR20 flywherl like the autotech one

-btw im using the autotech one-

is it possible to ask your friends if anyone has tried a stock oem sr20 flywheel or maybe even a s15 flywheel & clutch combo
IIRC we both are running Mavrick kits with Sr20 solid flywheels. His is a sprung 6 puck and i have a unspung 6 puck.
the_brownie1 is offline   Reply With Quote
Old 09-22-2020, 02:12 PM   #8
97kouki1J
 
Join Date: May 2019
Location: Toronto
Age: 27
Posts: 8
Trader Rating: (0)
97kouki1J is an unknown quantity at this point
Feedback Score: 0 reviews
Quote:
Originally Posted by the_brownie1 View Post
IIRC we both are running Mavrick kits with Sr20 solid flywheels. His is a sprung 6 puck and i have a unspung 6 puck.
damn I thought it was related more too my flywheel bring a fidanza flywheel,

but if youre both using stock flywheels then my theory is wrong...
97kouki1J is offline   Reply With Quote
Old 09-23-2020, 07:28 AM   #9
the_brownie1
 
Join Date: Sep 2013
Location: GA
Age: 33
Posts: 24
Trader Rating: (1)
the_brownie1 is an unknown quantity at this point
Feedback Score: 1 reviews
Quote:
Originally Posted by 97kouki1J View Post
damn I thought it was related more too my flywheel bring a fidanza flywheel,

but if youre both using stock flywheels then my theory is wrong...
I was told that it had to do with us not using a dual mass flywheel, since VQs have that factory. Not sure if that true or not.
the_brownie1 is offline   Reply With Quote
Old 09-23-2020, 07:47 AM   #10
PoorMans180SX
Zilvia.net Advertiser
 
PoorMans180SX's Avatar
 
Join Date: Nov 2005
Location: Michigan
Age: 33
Posts: 5,431
Trader Rating: (16)
PoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfection
Feedback Score: 16 reviews
Send a message via AIM to PoorMans180SX
You will destroy a dual mass flywheel much quicker than a single-piece flywheel. Not recommended for aggressive clutches or driving. Google "dual mass flywheel failure".

A heavier flywheel is a better harmonic damper. It may help switching to a stocker.
__________________
Build: http://zilvia.net/f/showthread.php?t=643065

Friends don't let friends buy knock-offs.
PoorMans180SX is offline   Reply With Quote
Old 09-23-2020, 10:58 AM   #11
TheRealSy90
Premium Member
 
TheRealSy90's Avatar
 
Join Date: Mar 2009
Location: Maricopa, AZ
Age: 30
Posts: 7,679
Trader Rating: (10)
TheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant future
Feedback Score: 10 reviews
Z trans are just really noisy. Hell you can hear it in a Z even. Let alone in an s13 with less to no sound absorption material.
__________________
Quote:
Originally Posted by crimsonrockett View Post
Such a good signature.
TheRealSy90 is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 03:08 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
vB.Sponsors
Copyright © 1998 - 2019, Zilvia.net™