Clutchnet Clutch Options (scanned brochure)

[MrBill]

Figured there are always a few clutch options, maybe this would aide in people figuring out which one is best for them. The information is available from the website, but why not make our search tool a bit better.

http://i193.photobucket.com/albums/z239/Misterbill_17/ClutchnetBrochure-1.jpg
thats as big as photobucket will allow, its legible, just squint or something

[fivedoorfury]

Hey thanks for even trying. I just picked up a 242 that has a clutchnet 6 puck in it. I did some snooping around and really just found that guys seem to like em yet they tend to be more harsh than the set up. I love nice clean pics over taking crap apart just to learn it anyday. :-D

[JohnMc]

I've got the Kevlar spring hub disc in my car, with a red pressure plate. (Stepped 9" flywheel). Works great. Nice light pedal pressure, easy to modulate as a stock clutch, and holds up with no slipping so far at roughly 250 WHP.

[MrBill]

Ah
Well I have a 4-puck and stock low-milage 9 inch pressure plate in my 242. Probably very high 190s or low 200s wheel HP

[smith_t240]

I got the fiber-carbon clutch - any reason most don't use it? I'll report once its running in my 244.

[MrBill]

I got the fiber-carbon clutch - any reason most don't use it? I'll report once its running in my 244.

not sure what yours cost
my 4puck was $140 i think.

[EricF]

The 4-puck sprung hub is what I first saw in Josh Brown's car, and what I put in my GT. Isaac also used it (along with a heavy PP), and I think the feel is just great.

Cool picture though.

[fiorano]

this is great
trouble is i don't even know the true origin of my motor...
i beleive it is a 1975 B20 8 bolt crank...
what pressure plate and clutch should i get? it is in my or will be in my amazon

[1stRaven]

So which one do I use?

Currently about 300ft/lb of torque and 275bhp at 1.4 bar but the stock 940 diesel clutch and pressure plate I have are starting to slip. I will be upping the boost to 1.7 bar as well so am going to need a better disc (to start with at least). Anyone got any ideas?

[MrBill]

there are so many different options.

Matt and I both use the 4-puck with cable. I use stock pressure plate, he uses the clutchnet "green" plate.

His pedal is obviously firmer than mine, but I'm sure it holds more than mine.
They're most excellent

[1stRaven]

I was looking at using the 6 Puck spring hub with the stock diesel pressure plate. You think 4 puck may work better?

[Karl Buchka]

A 4-puck will have more holding power but will have harsher engagement.

[JW240]

I was looking at using the 6 Puck spring hub with the stock diesel pressure plate. You think 4 puck may work better?

maybe the Sachs "race" version of the stock M46/diesel pressure plate could be useful for you. It holds a lot of power and is quite easy to find i'm told (although i haven't found a normal parts store that sells them).
A 6 puck plate would be nice as well. Sachs also sells a 4 puck plate that fits the M90/M56, maybe a 6 puck as well. Those parts are all available in the Sachs WebCat (http://webcat.zf-trading.com/index.asp?SPR=4).

[1stRaven]

I am tempted to try the stock diesel pressure plate on my m90. Pedal is quite strong as it is.

Only issue I have with Sachs is the price when compared to clutchnet or maybe I'm looking in the wrong place.

[JW240]

I am tempted to try the stock diesel pressure plate on my m90. Pedal is quite strong as it is.

Only issue I have with Sachs is the price when compared to clutchnet or maybe I'm looking in the wrong place.

i expected that Sachs would be cheaper in the UK, it is pretty expensive stuff indeed compared to a lot of US sources. the PP i was talking about costs around 250 GBP in Sweden (last time i checked). And it is really stiff compared to the stock B204FT/D24TIC PP (never driven with the race PP just tested it when the car was standing still).

[1stRaven]

Yeah, prices were in euros but works out to be about £300 while clutchnet pp's are $350 so £175.

Discs are cheaper too.

[Asleeper]

Clutchnet no longer offers any clutches in a 20 spline count(both volvo 850 and mitsu applications), thats what they told me when I ordered a 20 spline disk for my upcomming m90 swap. They still offer the 22 spline but said they are unsure if they'll be making the 20 spline(volvo 850) clutch disk again.

Knowing that, what are my options for clutch disks to use with the m90? ZFtrading(SachsNA) doesn't import any of the performance volvo clutch disks to the US. ACT, Clutchmasters, and Centreforce don't offer anything either. What options do I have left? Will a stock 850 clutch disk handle ~250hp?

[1stRaven]

I'm about to order mine so hope they are still making them at the moment.

[Asleeper]

I'm about to order mine so hope they are still making them at the moment.

I ordered the "yellow" 740PP and kevlar clutch disk(20 spline, 228mm) and they called me yesterday to say they no longer offer the clutch disk in those specs.

They said they may offer them again in a month or two but that was a big "if".

[volvorsport]

so what torque rating are you buying ryan ?

[1stRaven]

I'm ordering this one in the morning. we'll see what happens from there

http://www.clutchnet.com/product.php?productid=17127&cat=0&page=1

[volvorsport]

so it has no torque rating ? only red for racing:-P

[Asleeper]

I'm ordering this one in the morning. we'll see what happens from there

http://www.clutchnet.com/product.php?productid=17127&cat=0&page=1

Let me know how that turns out. Atleast what they told me on the phone was they no longer offer 850 clutch disks.

[1stRaven]

I'll let you know.

[1stRaven]

Clutch has been ordered and paid for. They are making a new tool in order to manufacture the centre core so lead time is about 2-3 weeks.

[fiorano]

i will say clutchnet service is fast and really well versed guys over there
i have a problem and i looked it up but...
i have an 8 bolt flywheel B20. I have a t-5 i got the clutch net pressure plate and disc- the disc fits the T-5 but the flywheel and pressure plate don;t match
the dowels match but not the mounting holes?
do i get a new flywheel? or do i get this one machined to accept the pressure plate or chance it with a different pressure plate
all told it is a 1975 (supposedly) B20 so it has an 8.5 inch disc i thought and measured- on the flywheel
ask what to do? i am calling clutchnet later, but if any one knows what the hell flywheel this is as they did not immediately know 6-bolt to 8 bolt crank difference.
all the problems getting this stupid amazon into running order I am :grrr: this close to selling the whole pile new engine and all the suspension goodies-

[1stRaven]

Clutch has been ordered and paid for. They are making a new tool in order to manufacture the centre core so lead time is about 2-3 weeks.

Just in case any one was still looking at this company for clutches, I wouldn't bother. I ordered mine at the end of october and after paying them and sorting out a few details (a delay of 2-3 weeks), I have not heard anything more from them, even with me chasing them via emails. I would ring them but that is going to cost some £'s and I need to get the time zones sorted for that.

Anyway, 3 months down the line and I still have no clutch.

[MrBill]

Just in case any one was still looking at this company for clutches, I wouldn't bother. I ordered mine at the end of october and after paying them and sorting out a few details (a delay of 2-3 weeks), I have not heard anything more from them, even with me chasing them via emails. I would ring them but that is going to cost some £'s and I need to get the time zones sorted for that.

Anyway, 3 months down the line and I still have no clutch.

PM me info and I can give them a call after work this week.

[MrDoug]

i will say clutchnet service is fast and really well versed guys over there
i have a problem and i looked it up but...
i have an 8 bolt flywheel B20. I have a t-5 i got the clutch net pressure plate and disc- the disc fits the T-5 but the flywheel and pressure plate don;t match
You could send them your old pressure plate to match up or
try a B230 flat flywheel from an NA 740 from 85-89- (8 bolts, 8.5 inch clutch)

[gsellstr]

The 8-bolt B20 flywheel is identical to the B21/23 flywheel, even down to bolt spacing and pin spacing. If you've tried any possible orientation of the PP to flywheel, perhaps it's the wrong PP (assuming you got a Volvo PP and T5 disc).

[740tankDriver]

hello,

what clutch disc is going to hold up to driving tht includes HEAVY clutch use. heavy meaning that during daily driving condidtions there will be more downshifting than braking, riding the clutch excessively, high RPM gearshift, and hill climbs. perhaps using stock PP.

by the way, the energy output for the 740 in question is probably around 250+ft./lbs torque.

What are your opinions expeiences?

[qwkswede]

Man, I really need a heavier pressure plate. I was going to pull the trigger on the clutchnet red unit, if thats the gnarliest one. But now it sounds like I should re-consider? i talked to a chap on the phone at clutchnet, and he seemed to be in a call center in the middle east somewhere. I really wanted to talk to an engineer, or at least a gearhead at Clutchnet. Not some far away sales guy who doesn't give a crap about anything but selling a part.

Also, why are there so many different "red" pressure plates for a 740 Turbo? Which is which?

[740tankDriver]

i think there's three general options; one, high-friction disc material. two, reinforced tension pressure plate. three, drive slowly and gunk-up the cylinder head. any sythesis of the first two is your best bet in terms of user application.

[qwkswede]

i think there's three general options; one, high-friction disc material. two, reinforced tension pressure plate. three, drive slowly and gunk-up the cylinder head. any sythesis of the first two is your best bet in terms of user application.

Right. But since clutchnet seems to be about the only player in the game that even advertises Volvo applications. Tell me about this "sythesis of the first two" you are talking about. I need a clutch like today, and I'd like real world experiences with this company. I got nothing from first call with them that gave me confidence in their product or engineering ability..

Anybody?

Right now, i'm more likely to employ McLeod, a company with a US presence, and real engineers that you can talk to on the phone. I can walk in and pick up my stuff if I need to. The problem is that they don't make anything for Volvo. They would have to do something very custom and expensive.

[John V, outside agitator]

Right. But since clutchnet seems to be about the only player in the game that even advertises Volvo applications. Tell me about this "sythesis of the first two" you are talking about. I need a clutch like today, and I'd like real world experiences with this company. I got nothing from first call with them that gave me confidence in their product or engineering ability..

Anybody?

Right now, i'm more likely to employ McLeod, a company with a US presence, and real engineers that you can talk to on the phone. I can walk in and pick up my stuff if I need to. The problem is that they don't make anything for Volvo. They would have to do something very custom and expensive.


DOOOOOooooooddd,
Your have one thing right: nobody makes anything for Volvo.
So we have to make and mod what we can.

Have you seen the 228mm Kennedy things I have posted piccies of a bunch?
What's wrong with that?
360 ft/lb capacity or 500 ft/lbs.
Use organic and have decent take up.
Use 6 puck from me via Clutchnet and add 25% or torque capacity.

You don't HAVE to spend stupid money.

[John V, outside agitator]

[QUOTE]Man, I really need a heavier pressure plate. I was going to pull the trigger on the clutchnet red unit, if thats the gnarliest one. But now it sounds like I should re-consider? i talked to a chap on the phone at clutchnet, and he seemed to be in a call center in the middle east somewhere. I really wanted to talk to an engineer, or at least a gearhead at Clutchnet. Not some far away sales guy who doesn't give a crap about anything but selling a part.

They are all Russians down there.

Also, why are there so many different "red" pressure plates for a 740 Turbo? Which is which?

Red is always faster.

You aren't to get a proper answer there.
As such I use their discs for 22 years but go elsewhere for covers.

[740tankDriver]

yes, the 'real world experience' really does help if you want to know exactly what your talking about. the synthesis was the principle on, evidently, both ends of the equation; the disc to have dampening springs on the general hub, then diameter per manfacturer specs. the second part being the pressure plate, the pressure on the disc to the flywheel. then that brings up the almost tangent posistion of friction/friction catalyst material and wear factors.
On the "engineering" factor, you'd want to know the particular factory-supplied clutch pressures and materials as your basis of improvment. then the production techniques; are there consistences per disc hubs, spline machining, and contact-disc diameter. oiy.

if you want to get super technical and custom, you'd better have awsome sponsorship or lots of money to sit on. otherwise, an educated guess is your best bet. hopefully though you'll be able to talk to someone who's done this before and can give some awsome pointers. if only to vector you in a better perspective. up to you.

seems like though, in the end, it's probably going to cost around 250-500.

[qwkswede]

Hey John. I didn't see your kennedy stuff. I know kennedy does mostly VW and Porsche stuff. I ran their clutch in my 914 w chevy power years ago. But I hadn't followed your posts on the subject.

i'll drop you a line, hopefully this is a solution that can come together pretty fast? id love to have some connection between engine and tires in 4th gear before the end of this season if possible.

[quote=qwkswede;1928946]

They are all Russians down there.



Red is always faster.

You aren't to get a proper answer there.
As such I use their discs for 22 years but go elsewhere for covers.

[John V, outside agitator]

Hey John. I didn't see your kennedy stuff. I know kennedy does mostly VW and Porsche stuff. I ran their clutch in my 914 w chevy power years ago. But I hadn't followed your posts on the subject.

i'll drop you a line, hopefully this is a solution that can come together pretty fast? id love to have some connection between engine and tires in 4th gear before the end of this season if possible.

[quote=John V, outside agitator;1929340]

Well it was using their 200mm Type 1 covers for I dunno, 15 years for my Saab with the Ford V4 and the dumb 3 groups of two bolts that had me looking at their 228mm "Bus" covers for Xratties which need something better.
I had seen they say their Stage whatever is good for V8 power and what we're all doing is trying to make V8 type power without all those superfluous cylinders so i figured that would do for the Ford, and of course if it's good for 1 2300 OHC turbo motor, why not another?


How many guys can heat up and remove the starter ring gear themselves??
That's maybe a question for the other flywheel thread.

[qwkswede]

:wave: Me over here. I can heat a ring gear, and likely get it off. I have a nice rosebud torch that makes glowing metal really nicely.

I have a close friend here that I run track days with. He has a 500hp small block chevy powered Porsche. And he is having the same clutch slip problems that I am. Its also a tiny 228mm clutch, and from Kennedy. Same size as the Volvo. Its just not enough at that torque level. And really, with altitude factors my turbo motor is probably making more torque than his NA V8 does in the mile high city. I could run a really grippy sintered metal disk. I don't know the drawbacks, but every vendor steers me away from them for my application.

My SPEC clutch is rated at 385, from talking to one of the techs last week. And my motor is right there in torque, between 375 and 400 ft-lbs. I think SPEC got their number pretty close. What I would like is 30-40% more clamping pressure. It might just do the trick. If I can get an answer from Clutch Net about availability and prompt shipping, I may give one of these RED clutch covers a try. I'm getting pretty fast at clutch swaps. So why not. I already have a 2 week old 4 button disk.

[1stRaven]

PM me info and I can give them a call after work this week.

PM sent. Sorry for the delay.

[qwkswede]

A little more info to add to the thread.
Clutchnet was a little more communicative on the phone today. I got a guy who could do some research for me.
They can build a "red 2x" pressure plate, with 55% more clamping than stock.
They can also build a "red 3x" pressure plate with 100% more clamping than stock.

The 2x was reported to be good at 500ft-lbs. with a 6puck disk.

So I ordered a 2x pressure plate. 3x was tempting, but he said the clutch pedal was "REALLY" heavy on that one. They didn't consider it streetable.

[John V, outside agitator]

A little more info to add to the thread.
Clutchnet was a little more communicative on the phone today. I got a guy who could do some research for me.
They can build a "red 2x" pressure plate, with 55% more clamping than stock.
They can also build a "red 3x" pressure plate with 100% more clamping than stock.

The 2x was reported to be good at 500ft-lbs. with a 6puck disk.

So I ordered a 2x pressure plate. 3x was tempting, but he said the clutch pedal was "REALLY" heavy on that one. They didn't consider it streetable.


Ooooooh fawk. Call me tonight so i can smack you around, silly bastid!'ll splain then.

Where's the Kevvie bat.:grrr:

[Captain Bondo]

Does 100 over mean the pedal is twice as stiff as a stock PP?

If so, I can't see why that wouldn't be streetable. The stock pedal feel is pretty limprwisted IMO.
I would love to have a 100 over pressure plate for the 850R clutch in my car, pedal effort is way light.

I will generally rather have more pedal effort and keep smooth disc engagement than the other way 'round...

[rdeeming]

Ken is busy using that bat on me right now John.

[qwkswede]

Does 100 over mean the pedal is twice as stiff as a stock PP?

If so, I can't see why that wouldn't be streetable. The stock pedal feel is pretty limprwisted IMO.
I would love to have a 100 over pressure plate for the 850R clutch in my car, pedal effort is way light.

I will generally rather have more pedal effort and keep smooth disc engagement than the other way 'round...

This is probably a good analysis.
I just called them back. Here is the story on the 3x. They install a double diaphragm spring into the cover on this one, essentially doubling the clamping force. Probably not a bad idea, but the price is pretty high too. $479 is what I was quoted. And at some point, I probably need to watch out for firewall flex, and breaking the clutch pivot, blowing hydraulics, etc. I am staying with the 2x based on the price mostly. Hopefully there will be some twin disk setups coming along for similar money that will have light pedal pressure before too long. I'll spend my money there in the future I think. In the meantime, it sounds like the 2x will give me what I need for now. At least thats what clutchnet is promising.

[towerymt]

Does 100 over mean the pedal is twice as stiff as a stock PP?

If so, I can't see why that wouldn't be streetable. The stock pedal feel is pretty limprwisted IMO.
Cable or hydraulic? Rob's 100% over stock PP is quite heavy compared to stock (cable clutch). It's bearable, but probably not what I'd call streetable on a daily driver.

[Captain Bondo]

Cable or hydraulic? Rob's 100% over stock PP is quite heavy compared to stock (cable clutch). It's bearable, but probably not what I'd call streetable on a daily driver.



Hydraulic for sure. Cable isn't really an option for stiff pressure plates as far as I'm concerned. The stiffer the plate, the harder the cable rubs on the sheath inside and creates even more friction, and the more friction is more pedal effort and more wear. So pedal effort actually increases at a rate HIGHER than that by which you increase the spring pressure, becuase you are also fighting more mechanical friction in the cable.

Personally I wouldn't really consider a cable for something much stiffer than stock.

Yeah people will complain about "feel"- but set up right it isn't bad. What good is feel when all of the veins are popping out of your forehead every time you have to press the pedal down?:-D

[qwkswede]

The 2x pressure plate is installed. I like the pedal feel. It feels sporty now. Looking at the diaphragm compared to my spec PP, I can't see that its obviously thicker. But the pedal feel is certainly heaiver. I'm hoping this one really grips. I haven't turned the boost up and gone for a hiway pull yet. I'll post again when I know more.

And just to add some info to this thread. Clutchnet was a pleasure to deal with. The clutch was built and on my door step in about 10 days. I think thats exceptional for a custom part.

[fivedoorfury]

So I finally got my b230ft cracked open to find the said clutchnet action that was in there. Looks like I have a new/never used "6 button ez lock pro" based on comparing mine to the picture. I found an identical 6 puck on their site but every other spring in mine is a lighter blue. Not sure if that means anything. And a nice shiny Yellow clutchnet pressure plate that has been untouched. I have a 2.4 flywheel now but don't EVER plan to use 2.4 so I may be trading it for a lightend other dogdish flywheel to someone who needs my 2.4.......

For the guys running this clutch set up or similar..
I have driven a ton of aggro clutch cars over the last few weeks. I havn't ran this clutch since its going into my project motor.

Im curious, knowing that this clutch will be pretty intense for street use.. is anyones noisey?

There are a few VWs that cruise by our shop with 6 pucks and they just sound like hell all whiney and groany. Is annoying noiseyness something I should expect? That may be a deal breaker way quicker than just having to learn the tricks to driving smooth with this one. I mean if a dude in a LOUD ass VW gets annoyed with his clutch noise, I'd prolly go nuts. Thoughts?

[qwkswede]

Um, I don't quite know what to say. You may be more sensitive than me. But my 6 and 4 puck disks don't make any noise really. Occasionally they will make a sqeak when engaging. But its a clutch. 98% of the time its just connected to the transmission and not doing anything except transmitting power to the trans. Its not really a noise making part.

[MrBill]

In mr.doug's 6-puck it makes a whine noise during low-RPM engagement like when slipping it at a stop-light. Not bothersome and I can't image it being audible from the outside.

[fivedoorfury]

Thanks for that info guys. I only really hear this guys VW when he is pulling up to the shop at work. I offered to shoot his car and put it out of its misery because its soo loud a slow speeds/rpms. He rants about hating it each time we talk. Also, I just learned that he has an Unsprung disk in his. Makes alot more sense now.

[The Ironswede]

can anyone find me some part numbers for a good street performance clutch kit with a 1989 240dl with an M47? There are so many to choose from and Ive never bought one before. I am adding a B230ft and look to run in the low 200hp range soon. FIgured that might be needed to know. Any help would be great, thanks!

Based on what I read I think I want the yellow section stuff. (the Hi- performance stuff)

http://www.clutchnet.com/home.php