Jazz

iTrader: (1)

Do aftermarket clutches also suffer from judder? My stock one does at low speed and I wonder if this also ture with aftermarket ones like AP etc

Pavlo

if the same things happens to them then yes. The problem is most likely to be uneven wear on the flywheel and clutch cover.

XS-Home

I forget how many Subaru's I have driven, but I have not found one without some judder, I thought fitting our new clutch & flywheel would eliminate this to a degree but 2 weeks later, there is a judder....

STill the weakest point on the car is the clutch

P1 RAJ

how do you cure the judder & prevent it from reoccuring?

APIDavid

iTrader: (4)

We supply the Exedy organic clutches , either as a standard replacement or the performance version. None ever experience judder, We are careful to check the flywheel condition to make sure there are not obvious hot spots or surface irregularities.

Cheapo clutches from factors tend to last a few days and then start juddering in our experience - but for less than £100 in most cases what do you expect ?

David APi Engines / APi Impreza
www.apiengines.com

Jazz

iTrader: (1)

David do Exedy behave like oem & easy to drive?

P20SPD

iTrader: (1)

Jazz (name rings a bell, did you buy my link?) The exedy ones do behave like normal, my one did over 20000 miles at 350bhp, and never juddered once. However, i think its more down to how you drive, ie, holding the car on the clutch will make it judder more as time goes by. Try and adopt a policy of clutch in or out, rather than an infinite combination of the 2.

Try Mark at Lateral on 02084205444

Steven

Jazz

iTrader: (1)

Hi Steven, I did indeed buy your Link. How you getting on with the Motec? Will take on board what you said about driving style but good to hear you had no problems with the Exedy. Was it a standard replacement or a performance version?

Cheers

Jazz

New_scooby_04

iTrader: (4)

David,

Forgive my ignorance, but what is the diff between the Exedy std replacment and performance versions? Is it just the power/torque they can handle? Which one was available on the recent group buy?

Best wishes,

Paul

P20SPD

iTrader: (1)

Jazz, motec is sat doing nothing at the moment, as the engine came back out in October 04, and is still out of the car

I had the uprated one from Lateral.

APIDavid

iTrader: (4)

Jazz, they actually are very kind on the old legs with LESS pedal pressure than most standard Subaru clutches.

There is a thread elsewhere for a group buy of my Exedy clutches - ask any of the buyers for an opinion.

David APi Engines / APi Impreza
www.apiengines.com

APIDavid

iTrader: (4)

The Exedy standard replacement is Subaru OE fitment and is the same thing in a different box.

The performance clutch has a higher tension in the diaphragm - thus the clamping [ grip ] pressure is stronger. The material of the friction disc is stronger and withstands the heat of the slipping better. All clutches obviously 'slip' when engaging, that's how they are designed, it is a cushion effect to protect the transmission.

The ceramic types don't slip and that is why they operate like an On / Off switch.

David APi Engines / APi lmpreza
www.apiengines.com

tweenierob

David, your comment on £100 may help your sales but wont help the community..

The motor factor clutches only lasting 100miles until they judder... PMSL!

If that is the case then it is down to poor fitting IMHO

IYO what would cause the 'inferior' Motor factor clutches to judder after 100 miles.

Rob

p.s. ceramettalic clutches dont slip as much, but they do slip..

vindaloo

There is normally no cure all short of fitting new components.

Short term it might be improved by revving the ***** off the car and slipping the clutch on take off. Don't do it too often as you'll burn bits out and/or get it wrong and break the gearbox. Just get it a bit smelly once or twice. If this doesn't improve matters, then you've probably got a genuinely lumpy flywheel.

J.

APIDavid

iTrader: (4)

Rob,

MaDaSS

"Arabs vest and recycled coke cans"
LOL. I like it.
What do you think of the AP Organic clutches compared to the Exedy then?
Just a query, as i am still on my Subaru clutch, but would be interested to know how they compare?
Thanks.

Tim W

iTrader: (1)

Funnily enough the AP has been know to suffer from more judder problems than the Exedy or the clutches that Lateral sell...

tweenierob

ROTFL David!!

Not that far from the truth

Rob

APIDavid

iTrader: (4)

Obviously the AP organic is a quality bit of kit. But we've never stocked them and have only fitted customer supplied ones.

As the AP starts off as an Exedy I can't see the point in paying over the odds for a fancy etch logo on the cover that can't be seen once fitted.

Thus I have no more real constructive answer for you. I don't do ' Well Fred says' I prefer our own experience.

Exedy work well, take abuse, don't slip, don't judder and are the right price.

I rest my case M'lud.

David APi Engines / APi Impreza
www.apiengines.com

Mark A

iTrader: (1)

David

How much power/torque is the standard 6sp rated at and how much for a uprated Exedy replacement cover for the 6sp ?

Mark

APIDavid

iTrader: (4)

Seriously Mark, I don't know. There are a number of people out there running 6 speeds with big power and they seem to be 'getting away with it' It's really an answer that Subaru should be able to provide.

The 6 speed clutch is the same as the one you have UNLESS you are using the 6 speed standard type flywheel that has the castellations around the circumfernce.

So; an Exedy for the flat flywheel is £320.00 plus VAT for the 3 part set.
The later style is £380.00 plus VAT for the 3 part set.

David APi Engines / APi Impreza
www.apiengines.com

Mark A

iTrader: (1)

Thanks for the reply David

I have a 6sp flywheel with castellations, standard 6sp cover/diaphram and an AP 6sp 5 puckle paddle (?240mm)
I just don't want to get to the position where every thing is back in place and the clutch starts slipping!

tweenierob

I would almost bet money on the fact that you will not slip that clutch.

IMHO 600+ftlb to slip that...

Dont forget to get a 6speed starter motor as the 5spd one will not fit the 6spd FW.

Rob

APIDavid

iTrader: (4)

There is a mod posted on here somewhere to 'modify' the 5 speed starter to fit. It's not a problem we've experienced when we've fitted them but I agree many others have. perhaps we're lucky??

David APi Engines / APi Impreza
www.apiengines.com

Tim W

iTrader: (1)

My MY98 starter motor bolted straight on to the 6 speed without any problems

APIDavid

iTrader: (4)

See !! I told you so !

David APi Engines / APi Impreza
www.apiengines.com

Jonty

Always pull away when the engine's at 5,000 rpm. You'll attract attention like Miss Daisy revving the nuts off her Micra whilst reversing at her local Co-Op, but you'll have a smoooooth pull away.

Jokes aside though, I get judder with my UK MY00 Turbo and it can be a right PITA, especially when other folk are in the car. Only seems to occur when the components are cold though... but strangely _doesn't_ occur with my wife's UK MY01 WRX.

Thankfully I'd read about the common judder issue before buying my Classic so just learn to live with it. What I have to make sure I do though is not engage the clutch too slowly (read 'slip) in an attempt to pull away nicely. It's more of a case of just 'go' really.

Binary clutch action - it's either on or off.

Jonts.

New_scooby_04

iTrader: (4)

Some -myself included- have found that letting the car idle for a while before setting off cures this. Mine only judders when very cold and only for a about 2 mins then it goes. If I let it idle for a couple of mins, I find that it doesn't judder at all.

Give it a go, if you haven't already!

Best,

NS04

Jonty

Hmmm, top tip. Although I'm not a fan of letting cars warm up at idle, I'm sure 2 mins won't hurt and am prepared to see what happens. I'll try that out all next week and report back.

Nice one.

Jonts.

New_scooby_04

iTrader: (4)

Me neither, but as you say, two minutes won't hurt it as that would not be nearly enough time (or the right conditions) for the car to warm up.

It certainly seems to do the trick for the juddery clutch though!

NS04