like the title states, my clutch is slipping. Nothing too serious. It slips when i try to smash in 4th and 5th gear, or it doesn't even want to go anywhere when theres 4 people in the car.

I spoke to the techy at cerritos infiniti and he says the difference btwn aftermarket clutches and factory is that the aftermarket is lighter, one whole solid flywheel (not sure if he meant 1 solid clutch, or flywheel, got lost) and that aftermarket tends to 'chatter' more.

He says that the OEM clutch and flywheel is 'double'? in a sense that it'll create more weight but this helps reduce noise and chattering.

Is this all true? Or somewhat true? (i know it doesn't help that i didn't fully understand what he was telling me, sorry guys)

Anyone have any good experiences with any aftermarket clutch, flywheel, pressure plate combo? At a decent price?

thanks
ken

 

i just ordered that oem exedy clutch that they have in the vendor for sale section. ill be putting the new motor in and doing the clutch at the same time so ill let you know how that clutch feels. it shouldnt be too hard to because ill have the motor out of the car so i wont be able to tell u how hard the install will be because mine will b completly different. but ill let u know how it feels

 

yeah, keep me updated please. thanks.

anyone else tried anything different or have any advice? i tried search before this thread, so its not like im not looking.

anything is appreciated, thanks

 

Just put a Carbonetic Twin-Disc carbon clutch + lightweight flywheel in.

The clutch feels great, the flywheel is louder than **** when it warms up.
Only prob is the cost of this setup.

 

I just did a write up relative to clutch installation and will be happy to assist you with any questions you may have. Here is a link to post regarding my installation:

https://g35driver.com/forums/engine-...utch-info.html

Your Tech is correct, for the most part. The G comes from the factory with a dual-mass flywheel. The name Dual-mass comes from the fact that these flywheels have two parts that are mated by a dampener. Flywheels of this type are used to reduce gear noise (clatter) which is common in most modern transmission and to help increase smoothness during clutch engagement.

Clatter is most noticible when the car is at idle with the clutch pedal released. Though it can be heard during deceleration as well. That being said once you are familiar with when this noise occurs you can learn to work around it. I.E. don't sit in the drive-thru with the clutch pedal released while in neutral. The noise can be annoying but it is a trader off relative to the increased performance and reductiion in weight provided by a lightened flywheel.

Most aftermarket flywheel options will provide a reduction in overall weight. These options have a single-mass (one peice) design that eliminates the dampener found in dual-mass flywheels and the benefit of this is a reduced mass and a lower MOI (moment of inertia). The overall affect will be quicker increases and decreases in RPM and an increase in power delivered to the wheels (most notable in the mid to upper RPM range).

If you want to have as little clatter as possible then I suggest that you opt for a Steel flywheel. Most Steel units will have a slightly lesser weight than the stock DM unit allowing for a minor improvement in MOI without leading to substantial increases in gear noise. I hope this info helps. Let me know if you have any further questions.

 

so wait can i have the stock fly wheel cut? or do i have to get a new one?

 

how much is one of these lightweight flywheel/clutch combos going to run with the install job?

mine is about to go too.

 

Team, I would not suggest having the stock dual-mass flywheel machined. Due to the two-part design and the resultant inability to secure the two haves well enough to restrict movement from occuring during the machining process it would be nearly impossible to insure that the flywheel friction surface was cut flat. Having a flywheel that isn't flat will afftect the life expectancy and holding capacity of the coresponding clutch kit.

Nutty, There are a number of Stages (I.E. options) available for the G35. Differences between these stages are relative to driving characteristics and torque capacity. Let me know what kind of torque you are planning to make and I will be happy to provide more info.

 

I had it done in my B5 S4 which I believe is also dual mass and it came out fine. It was said and done for $25.

 

I didn't say it couldn't be done...I just don't recommend it. I can tell you coutless stories of customers that had their dual-mass flywheels cut only to find that they weren't as flat as they should have been. If a stock flywheel has an outage of more than .005" then it can affect the seating and longevity of the new clutch kit that is installed with it. Again...this is just my .02 from experience.

 

Hmm, this is actually going on my daily driver. I really dont mind a bit of noise, or harshness in driving, but I'm hoping this will help save some gas and really lighten up the car.
That elusive "supercharged" feeling doesnt hurt either.

As for steel vs. aluminum, probably aluminum since it is lighter. Is there a difference in longevity?

 

WOW, thanks for the clarity SPEC. it really did help me. I've never experienced this "chatter" noise with the aftermarket, so i really dont know if i CAN handle it or not. I'm just really use to the stock clutch. Even with the stock clutch, any small chattering sound i hear from it, drives me crazy and raises my paranoia level that it might break up the arss.

do you have any sound clips of the chattering noise while you're driving? that'll help alot

nutty: the tech told me that oem replacement clutch job is 1g. which is.....*daymn*

 

I want to make sure we are all on the same page and using the same terms to avoid any confusion for those reading. Chatter is a sound that results from the disc skipping across the flywheel face. This is generally felt/heard during the break-in period and can be exacerbated by using a pucked clutch disc. Clatter on the other hand is what I was clarifying above, and it is originates within the transmission and is generally heard as a result of moving to a single-mass flywheel in a car that was originally equipped with a dual-mass flywheel. These occurances are different and I hope that this cliff's notes version of the explanation helps you all understand the nuances of both phenomena.

Pricing for kits is relative to which stage you choose. You can check out our website for info on pricing and torque capacities. I don't want to break any rules by posting this information without being a sponsor of the site. Take a look and let me know if you have any further questions.

Nutty, There should be no difference in the potential longevity of Steel or Aluminum flywheels. One benefit of our Aluminum option is that it has a replacable friction surface that allow for rebuilding in the future. This means that it can be rebuilt and reused again and again as needed. This is common amongst most Aluminum flywheel offerings these days but it is a feature worth noting.