mine used to rattle with the light weight FW and the Single Mass as well.
Loud Aluminum Flywheel?
Thread Starter
Pro
Joined: Jul 2005
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From: Jacksonville FL
Loud Aluminum Flywheel?
I have heard that when swapping out the dualmass flywheel for a lightweight, you need to expect for there to be additional noise.
My ZF6 (1,000 miles new) now makes a LOUD RATTLE (as in loud) when I let the clutch out (at a stand still). Is it normal?
My builder changed out the oil in the ZF6 to a much heaver weight, and informed me that I, probably, would have to live with the noise.
Does anyone have experience with this?
My ZF6 (1,000 miles new) now makes a LOUD RATTLE (as in loud) when I let the clutch out (at a stand still). Is it normal?
My builder changed out the oil in the ZF6 to a much heaver weight, and informed me that I, probably, would have to live with the noise.
Does anyone have experience with this?
Last edited by KBRVETTE93; Apr 5, 2010 at 02:07 PM.
Le Mans Master
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I have heard that when swapping out the dualmass flywheel for a lightweight, you need to expect for there to be additional noise.
My ZF6 (1,000 miles new) now makes a LOUD RATTLE when I let the clutch out (at a stand still). Is it normal to endure a loud rattle.
My builder changed out the oil in the ZF6 to a much heaver weight, and nicely informed me that I, probably, would have to live with the noise.
Does anyone have experience with this?
My ZF6 (1,000 miles new) now makes a LOUD RATTLE when I let the clutch out (at a stand still). Is it normal to endure a loud rattle.
My builder changed out the oil in the ZF6 to a much heaver weight, and nicely informed me that I, probably, would have to live with the noise.
Does anyone have experience with this?
I do not have a lightweight aluminum FW in mine yet, but it has been said that due to the angle that the gears are cut in the transmission that it is very noisy when your at idle with the clutch pedal out.
Cruising
Joined: May 2009
Posts: 11
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From: Taylors SC
Yes, it will be very noisy. I put a steel flywheel in mine about a month ago, and it is loud. If you read through ZF doctors page, he tells you all about the dual mass flywheels and why they were used. Don't worry about the noise as long as it does what it's supposed to. I also put the Castrol TWS - 10W 60 motor oil that ZF recommends for the tranny. It seems to shift nice and smooth and has less resistance than when I had heavier gear oil in it. The stuff is made for BMW M series engines and is kinda pricey, but it seems to work great.
Drifting
Joined: Jun 2007
Posts: 1,478
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From: Formerly from the Great White North but now residing in the Desert Southwest NM (The Land of Dis-Enchantment?)
Yup, I have a Fidanza aluminum flywheel and a Spec stage 4+ clutch and it's loud at idle with clutch out and sometimes moving as well. I've been told not to worry, but....
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Melting Slicks
Joined: Mar 2005
Posts: 2,352
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From: Northeast FL
Yes, Mark, it's very loud and sounds almost like something is broken. In the staging lanes at Darlington a few weeks ago people kept asking me what was wrong with the car. I would just put the clutch in and ask them, what noise? The other people with experience with this said it was normal too.
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Melting Slicks
Joined: Mar 2008
Posts: 3,022
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From: Chandler Arizona
I read this all over the place, but I can't tell if the flywheel has caused more noise.
Bill installed my flywheel and clutch combo. The clutch is a sprung 6-puck with the stock (nothing else is even available) pressure plate. Carolina Clutch combo. Bill also swapped the oil out from the transmission at the same time. VERY smooth, no issues at all.
I think most people are hearing noise and vibration because the flywheel was not BALANCE MATCHED to the stock dual-mass. This service alone cost something like $200 dollars, although Bill insisted on it.
I do get some chatter in reverse, only because I am not modulating the throttle/clutch pedal very well.
the clutch is also super grippy, and takes getting use to.
Bill installed my flywheel and clutch combo. The clutch is a sprung 6-puck with the stock (nothing else is even available) pressure plate. Carolina Clutch combo. Bill also swapped the oil out from the transmission at the same time. VERY smooth, no issues at all.
I think most people are hearing noise and vibration because the flywheel was not BALANCE MATCHED to the stock dual-mass. This service alone cost something like $200 dollars, although Bill insisted on it.
I do get some chatter in reverse, only because I am not modulating the throttle/clutch pedal very well.
the clutch is also super grippy, and takes getting use to.
Melting Slicks
Joined: Mar 2002
Posts: 3,108
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From: S.L.C. UT
A couple little things that will help. First use a sprung hub clutch disc. It helps alot. And if you raise the idle around 900 rpm, that will help with the gear rattle. With the cam in my car it idles around 1050-1100 rpm. I don't hear any gear rattle... but the car is kind of loud
Thread Starter
Pro
Joined: Jul 2005
Posts: 585
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From: Jacksonville FL
Yes, Mark, it's very loud and sounds almost like something is broken. In the staging lanes at Darlington a few weeks ago people kept asking me what was wrong with the car. I would just put the clutch in and ask them, what noise? The other people with experience with this said it was normal too.
Joe:
I was prepared for some added noise but was freaked out by how much it really is (not prepared for so much)! I might have stayed with the dual mass otherwise.
I really hope that the llightweight will provide an enormous seat of the pants difference. I'm comforted to see that this is pretty normal. Hope to see you soon.
Mark
Team Owner
Joined: Oct 2004
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From: altered state
St. Jude Donor '05
On the street the difference is youll have to feather the throttle some and change your engagement routine a little the engine will want to bog quicker. Once in gear it may pull through a little easier.
Its all personal choice, some like everythign light imo a heavier flywheel is better for the avg street strip car.
ou can always get a billet one and have the best of both worlds you know.
Carolina Clutch should have them.
Its all personal choice, some like everythign light imo a heavier flywheel is better for the avg street strip car.
ou can always get a billet one and have the best of both worlds you know.
Carolina Clutch should have them.
Last edited by cv67; Apr 6, 2010 at 12:14 PM.
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From: Indianapolis IN
Yes and yes,,, I put the Blue Tag behind 2 or 3 fresh406 engine builds, same thing, it just is what it is