clutch/pressure plate combo question

[skills@eurocarsplus]

working on another build for a 71 bus. going to be in the 220 h/p neighborhood

last build I used a 1700 lb kennedy p/p and a copperhead disk. even with the longer clutch arm, it's a bit rough in stop and go (I realize this has no bearing on the disk itself)

overall happy with the combo. the "real" question is would a stock disk and 1700 lb p/p be asking too much? more than happy to get another copperhead, but not really doing burn outs etc (well, once in a while...maybe!)
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[slalombuggy]

Even in my buggy I could drive through a Stage 1 and stock disk when I was flat out in 4th. I also went to a Copperhead and love it.

brad

[modok]

Th copperhead is a great disk. I abuse mine all the time,slip it instead of downshifting, yeh it's terrible . You can slip it and get it pretty hot yet won't die. A stock disk once you get it hot it turns to gumbo and slips, maybe they can recover if you drive like grandma for a day, maybe not. Probably not. I've seen one go from new to dead in TWO stop signs.

If you manage to acquire a good pressure plate that allows you to feather the clutch easily, and you do,, then you will need a copperhead

[jfats808]

I wonder if cbs dual friction may be a Lil less aggressive? I do like the copperhead also.
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2276 IDA's 86C 11-1 DD !
2017 48 Trijet DRLA's W125

[modok]

Cb dual friction(centerforce) is almost the same. I ran the copperhead, swapped to centerforce, then back to copperhead, over a few years. I think the copperhead is a little better overall performace slightly), but the centerforce is easier on the flywheel. They are very similar.

[modok]

BTW, with both, I had a slight vibration on engagement, when backing up especially. Only when engaging very slightly, didn't really notice it most driving. Then I re-surfaced the pressure plate and it's gone. Gone for good it seems, since that was 3+years ago.

[Howard 111]

I use a KEP 2100lb with a Berg, Super Street dual friction disc, and love it. Easy on the leg, but hooks up solid. This is in a turbo Ghia.
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1973 Karmann Ghia
Turbocharged, Fuel Injected
http://www.thesamba.com/vw/forum/viewtopic.php?t=531270

[skills@eurocarsplus]

[modok]

One of the FEW items that have been worth every penny.
Rigth up there with SAW torsion bars, web cams, Italian webers, 3 finger PP,

This is another item that was worth every penny, and also can touch up your pressure plate surface, so you "season it", then sand it flat, and it'll stay flat.

[maui]

For me, the copper was to heavy and neva like go in gear at 8 grand shifts and I feel it's to hard on trans so breaking R/Ps is easy if you no watch out. I use 2100 and daiken and easy on foot and major grip action and it lasted long time and trans lasted long time. Cheap insurance

[modok]

[skills@eurocarsplus]

seeing it's in a bus and *really* won't be doing burn outs etc is a daiken a better choice?

it really doesn't matter to me what I use, just want it to be reliable. why would you say the copperhead was rough on the transmission? rough engagement or a weight issue?
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[esde]

The copperhead is a heavy disc, and can be rough on the syncro's, hubs, and sliders if you're trying to shift fast. The dual friction disc (berg, I've not tried the CB) is lighter; and the Daiken even lighter. I weighed them last year and posted the results, might search it if you're interested. I decided on the Daiken, and it's nice for stop and go traffic. i haven't slipped it with a 1700lb plate and trust me I've tried.
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modok wrote:
Bent cranks are silent but gather no moss. I mean, ah, something like that.

[skills@eurocarsplus]

esde, I tried a search and came up with nothing, unless I am using the wrong terms....

I am not opposed to a daiken either. if it's easier on the transmission I am good with that

*EDIT*

this is the disc you guys are referring to, correct?

http://vwparts.aircooled.net/Daikin-200mm-Rigid-Cl...m-b503.htm
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[Brian_e]

Spend the little extra and get the super disk.
http://vwparts.aircooled.net/Daikin-200mm-Solid-Su...m-503a.htm

Brian

[woodoctr]

I run that Super Daiken with a Stage II Kennedy and long arm with my supercharged rotary. 265 h.p. at the rear wheels, no slip, good engagement. Also have everything pretty firm in the back with it.... Mohr mid mount, heavy duty trans. mount with CB Rhino mounts, and Kafer brace system. This is a VW based kit car.... all up weight around 1800 lbs. Only other discs I was looking at were the Copperhead and that dual disc set-up. I felt that the Daiken with the stage II was going to be the cheaper "safety valve" in my drivetrain.

[slalombuggy]

I think I would try the Daiken first, a guy can never have too many clutch disks can he? I don't speed shift so the copperhead hasn't been an issue but ya, they are heavy and even mcmscott will tell you they eat parts.

brad

[mcmscott]

Copper head or black magic are the worst thing you can do for your trans. Those disks are HEAVY, mass in motion tends to stay in motion, your synchro rings have to control that mass in motion. A stage 2 with a stock unsprung disk are good for 11.60's in the quarter in a full weight sedan, how much more do you need?
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There are no stupid questions, only stupid people,

68 Ghia
67 T-1
65 Notch
02 Mexican beetle
74 Thing
15 Long travel rail
07 Nomad
05 f-250

[modok]

That's true, if you want to shift fast then you want a light disk, but, do you want to shift fast?
What if your syncros are ALREADY dead?

[skills@eurocarsplus]