Jump to content
SAU Community

Recommended Posts

I think my clutch is on its way out and I am considering my options for replacement.

I know most people would suggest to ditch the DMF and go with a single mass flywheel, but hear me out...

This car is my daily, I spend a bit of time in traffic and during this time I am shifting up at about 2,000rpm, which means most of the time the engine is sitting below 2,000rpm.

From what I have read, changing to a SMF will create more gearbox chatter and noise below 2,000rpm. At the moment, i can accelerate from around 1,100rpm without a hint of complaint or harshness from the engine (although I don't normally do this).

I don't want to have to keep the engine above 2,000rpm to keep the chatter under control and give a comfortable driving experience in traffic each day, so at this stage i am thinking of going with a new LUK DMF and Exedy clutch. But since I have never had the chance to drive, or even be a passenger in a V35 with a SMF, I am just chasing everyone's opinion given my situation.

Thanks in advance.

Link to comment
https://www.sau.com.au/forums/topic/434518-single-or-dual-mass-flywheel/
Share on other sites

i had the Southbend clutch from CZP in the states, i believe Southbend are made by Exedy.

It's a single mass and from memory it did make a little noise at low rpm as a lot of aftermarket clutches do,

i'd google it and see some feedback on some personal experiences with the single mass, but i believe most of them will be noisy.

i have heard that the nismo clutch is quiet, but i am not entirely sure if it was a personal experience or not.

good luck mate

Thanks Sean.

I have researched a bit, several people on G35 driver seem to like the JWT package for best driveability and closest to stock for noise/chatter issues. But all agree that any SMF will be noiser than the stock DMF.

My main hugdle is 'how noisy is it going to be for my regular commute to work and will it irritate me enough to regret the change'?

I am hoping to get an opinion from someone may have changed from a DMF to a SMF and drives in similar situations to me.

whoops just realised i kept saying clutch instead of flywheel -.-

but yeah from memory when i was researching a new clutch/flywheel a lot of people were saying the same thing about the JWT and how nice it was to use.

the thing i liked about my Southbend clutch/flywheel is that it was nice and soft, it took a little while to get used to but it was very easy to drive with as my car used to have a stiff as hell exedy clutch in it originally that hurt my feet when driving barefoot lol..

what if you upgrade your sound system and drown the flywheel noise out? haha..

Ditching the dual mass flywheel isn't recommended, it is similar to going for a solid centre clutch, they will both transfer shock and vibration through the drive train causing damage.

Unless you need to ditch it due to power increases...

they will both transfer shock and vibration through the drive train causing damage.

Are you certain of this? all the research I have done suggests Nissan only decided to use a DMF for NHV and not for driveline reliability, and many people are using a Single Mass Fly for many years without any driveline issues.

I found this earlier when researching the options

'two types of gear noise that commonly occur when using a lightened flywheel on the 350Z or G35: 1) idle mode rattle (also called neutral rollover noise), which occurs when idling in neutral with the clutch engaged, and 2) burst rattle (or start-up rattle), which is heard when accelerating heavily at very low rpm. Although annoying to some drivers, the additional gear noise should pose no harm to the transmission.'

Either way, it seems to universally accepted that a SMF will be noisier, and since this is my daily, I don't think the increase in noise will offset the benefit it will give for me, so I am leaning toward a new DMF at this stage.

Anyone had any experience with LuK flywheels? they seem to be an OE supplier to many manufacturers.

I went through the same topic with the RS4 Audi guys, we came to the decision if it aint a problem, why change it. If you don't plan to run more power there is no point changing from oem.

Do you think Nissan put it there just for noise reduction? It has more flex than the clutch springs allow movement. Good for heavy clutch dumps or people that have poor clutch control.

More important that flywheel selection imo is changing the spigot bush in the crank. Nismo do a roller bearing one but it isn't a good idea for the road from what I hear as they fail without re-greasing regularly, just a new bronze bush is best.

Thanks for the input, I was going to go with the Nismo roller spigot bearing, but will just go with the standard bronze unit now.

Will probably replace the stock pivot ball too.

The other driving factor for a SMF is cost. A new LuK DMF is around $600-$800 alone. yet I can get the JWT SMF, clutch and pressure plate for around $750.

My first thought was just to have the stock DMF resurfaced, but opinions on that range from 'not recommended' to 'not possible', so I guess that is out.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Welcome to my 2004 Toyota Mark ii IR-V Fortuna (series 2) With a 1JZ-GTE powerplant under the bonnet (hood) it'll give me plenty of scope for power upgrades. For those who aren't familiar with imports, the 1JZ-GTE is a 2.5L 6 cylinder VVTi engine with a single turbocharger. This has the factory R154 5 speed gearbox, along with a aftermarket 2 way LSD differential (brand unknown). Under the arches are a set of CST Zero 1 alloys, 18x9 +30 225/40 up front and 18x9.5 +15 265/35 on the rear. The car was quite low in Japan and there's evidence of the wheels catching the rolled arches/fenders. The tyre's aren't great so I'm in two minds whether to replace both or just the tyres and put up with the wider wheels on the rear. The car still uses stock brakes with the addition of some braided hoses. The exterior is stock with the exception of a BN Sports front bumper and a replacement Fortuna grill  Moving to the interior, the steering wheel has been replaced with a dished MOMO steering wheel (which will get swapped for my Momo Tuner for the time being) Defi Link Gauges are mounted above the climate controls and on the A pillar, the Oil Temp,Oil Pressure,Water Temp and Boost gauges should help with spirited and track driving  The stock seats have been replaced with some retrimmed Recaro bucket seats. Being a larger build these are a little snug, unfortunately the orange isn't for me so I'll look into replacing these down the line. Other modifications include a twin plate clutch, Blitz intercooler, Evolve alloy radiator, a stainless exhaust with decat, HKS EVC-S boost controller and coil overs
    • Apologies for the long read My R34 GTT was up for sale at the beginning of spring due to a few repairs creeping up. The strut tops needed replacing, roof and bonnet (hood) painting (yay for 3 stage pearl) and the underside stripped and treated. I sold the car which allowed me to be in a much better place financially. Leading up to the sale I was already thinking about the replacement. In an ideal world it needed to be a good all-rounder. Something I can mess around with, modify, do track days, do the school run, go on long drives etc.  Options included but not limited to... Laurel C35, Evo 8/9, Civic FD2, Impreza Hawkeye, Aristo and even an Audi S4 Avant (I've already got the Mazda 6 wagon). But there was always one car at the top of the list The Toyota Mark ii JZX110 I found an advert on a Facebook group for an example in Japan, from a seller called Jon at Rising Sun Exports. A few messages back and forth and Jon calls me from Yokohama one morning (or afternoon in his case). He briefly explained the import process, the costs involved and a repeat of the advert. After much deliberation, the price was agreed and the sale was locked in. I've never imported a vehicle so I jumped into the unknown head first. The money transfer was completed through wise.com (fees apply), very easy to use and the money was with him within a day or two.  The car suspension was raised for the vessel and the car dropped off at the port. It was 7 weeks later when the bill of lading was received and the freight invoice sent to me, followed by the export certificate a couple of days after (both digital copies) In the mean time the port had been in contact. I needed an agent to deal with the NOVA (notification of vehicle arrival) along with the tax/duty invoice, this was £75.00. The port also had a fee of £100, I'm guessing to cover the cost of the 10 day 'free storage' and for moving the car off the boat etc. They need a copy of the vehicle invoice, freight invoice and export certificate to allow the vehicle to pass through customs. The vessel arrived on Tuesday 5th August, the tax/duty invoice was generated and sent over. This is generally tax 20% and duty 10% of the vehicle value. Although the invoice came in at a higher amount than I had calculated. Once HMRC had received the payment the vehicle could be released from customs. I thought once the tax/duty was paid you could collect at any point, that's not the case. Your agent will need to book a collection slot, I requested Thursday 7th which was accepted, with a 9:00am slot allocated. It was a 5:00am start from Norfolk heading to Southampton. We eventually found the compound, upon presenting the bill of lading and some ID they released the car (they drove it out of the compound to the front ready for us to load up). The email from the port stated each slot had a 10 minute window, which seemed abit farfetched but the staff said it's not a strict rule. We were there for approx. 30-40 mins in total. A week prior to collecting I contacted my garage and explained the situation, I was able to get an inspection slot that afternoon. For the registration, DVLA require the car to be insured, for this I used a company called Adrian Flux who can insure the vehicle using the VIN number. 
    • Hey guys, looking for these side skirts if anyone can help me out. 
    • Wife and I are still looking for a new home. One condition was a large enough garage for a full-size lift in one bay. Now if only we could find something... We've been looking for almost a year now.
    • Thanks everyone for the ideas! Sadly, ramps are a no go for me. With young kids at home, I do most of my work late at night while they're sleeping. Starting the car multiple times wouldn't be a great idea.  I'll go see one of those new long reach low profile jacks and take a couple measurements to see if they will fit.   
×
×
  • Create New...