Single or Twin plate clutch for drag ?

[cobrAA]

My car currently do 425whp. My custom-made 6 puck is garbage, best times I did was 13.5 because of the slip!

I'm looking for a street clutch but you know, one that can takes some 5k launch from times to times, you know, we have a gtr for a reason lol!

Would a single plate do the job or I need to look at twin plate ?

See ya

[frankiman]

don't cheap out THIS time

go nismo copper twin, or go home

[Daryl @ RightDrive]

Definitely twin. The Nismo twin is an awesome clutch, but designed mostly for circuit use. If you want a couch that you can dump the clutch at high rpm repeatedly, I'd go for a metal twin, like one from the OS Giken series, the price is reasonable and they're pretty tough clutches. Other options include Exedy metal or carbon twins.
If you need any help locating a good clutch for your application please feel free to pm me.

[cobrAA]

How about orc twin ? and I read that I should buy a nismo clutch slave cylinder to make it easier tot ry on the street. true? or it's only good for nismo twin ?

[Daryl @ RightDrive]

The ORC Twins are nice. For example the ORC 559 Twin w/damper is 169,050 JPY, and comes with flywheel, release bearing and sleeve bearing. The ORC 659 Twin w/damper is 179,550 JPY and also includes the same features, but will handle a little more power.
The Nismo slave cylinder can be used with any metal clutch. The Nismo slave CANNOT be used with Nismo Copper Mix clutches.

[skyline_steve]

i am running a ORC tripple in my car and its is just awesome, came with release bearing and flywheel. I would strongly recomend this clutch if the budget will allow. the tripple i bought is rated for just under 1000 ft/tq i was told by shop.

[cobrAA]

Budget is pretty limited since I already paid a couple of thousand on my built to make it to 425whp. I will stick with twin plate, I think a twin plate is easier to drive around in the traffic than a third plate :P.

What should I take care more of a clutch spec ? pss ( HP) or torque . And when it say HP, is it at wheel or at the crank ?

[frankiman]

torque > hp
@crank

[DJ]

well if the clutch is holding up and you ran that time then you have to start thinking .Is it your driving thats giving you such a poor time? if you're on a budget a 6 puck sprung Act clutch rated for 500ftq should be well enough.

[NismoS-tune]

Nismo twins are great but there are better twins out there. ORC, OSG, ATS/carbonetic (900ps!)

[mitch32]

Are you sure its slipping? What was your trap speed and 60ft time? From that I can tell if your slipping.

Like Daryl said don't go with a Nismo, its for circuit not for drag launching. Frankiman was half right, don't cheap out, but do not get a Nismo. ORC is good, OS Giken is good (supposedly they are the same clutch). There's a lot of guys on the Australian forums who use up an entire Nismo Twin on 10 hard launches with 500whp. Exedy Clutches are good and they are the best bang for buck but still very expensive, the cheapest exedy twin is 2000$ CND. Its not necessary to do a twin there's guys dragging on single plates but its just the reliability that becomes a factor. Bully makes a single for like 600$ thats good for 800lb-ft or torque and its located in Ottawa (its actually Ottawa Clutches that owns Bully).

[frankiman]

power-wize i agree,
but for driveability, the copper twin is the best hands down

[mitch32]

Forgot to say in my last post, they measure clutches based on torque. It's impossible to accurately measure a horsepower rating. Its torque measured at the crank. Basically they take a huge torque wrench they put it in the center of the clutch (the clutch is bolted down to the floor) and they torque the clutch until it slips. When the clutch slips then they find the torque rating (the also have a safety factor involved, aka if it slips at the factory with 500ft-lbs then they divide it by a number and thats the rating actual).

[mitch32]

Based on what people say the nismo is easy to drive, but I can say its not hard to drive my exedy twin (I admit at the begninning it was hard to get used to and to breakin). I've driven a OS Giken triple plate it was not hard. It's just the stop and go thats a bit tricky.

[Brendan]

I had an OS twin in my old GTR, can't recall what model though. I beat the hell out of that clutch... countless launches and it just kept taking it. Not bad to drive on the street either, IMO it was easier than some aggressive single plates I've had before.