When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
i dont know.. maybe not.
the sprung disc should take out the shock to the spline.
interesting design.
Yeah its a beautiful piece for sure. Looks really well designed and looks beefy for sure.
Originally Posted by cficare68
The hubs on the twin disc clutchs are built into the disc. It's not an individual piece that slides in between the disc like the triple is setup. The twins design is much better than the triples. My comment was more in general. Torque is harsh on the drivetrains of these cars. The more torque you, the more strain you are exerting on your drivetrain.
Yeah I didn't notice that till you said something I definitely overlooked that. Like I said its a really nice looking piece for sure and I like the design of all the individual locking points on the risers. Makes for alot more beefier setup for sure. I know oh my triple I have like 4 spots. Definitely a well thought out design.
Yeah its a beautiful piece for sure. Looks really well designed and looks beefy for sure.
Yeah I didn't notice that till you said something I definitely overlooked that. Like I said its a really nice looking piece for sure and I like the design of all the individual locking points on the risers. Makes for alot more beefier setup for sure. I know oh my triple I have like 4 spots. Definitely a well thought out design.
I've honestly been considering going from the triple to the twin. The twin holds up better and is so much easier to drive over the triple. I'm building a Destroked 2.1lr so I won't be making near the torque that I was making with the 2.4. The 615tq HD clutch should be plenty for the amount of power tq the car should be making once its done.
Thats a nice looking clutch but like the Exedy triple it uses a hub spline. So in the same regards it will have the same problems as the Exedy.
If you follow the link, the twin looks like the exedy, with each disc have it's in spline hub section as part of the disc. But then the triple does not look like the Exedy, the center hub is large in diameter like the OS Giken.
I've honestly been considering going from the triple to the twin. The twin holds up better and is so much easier to drive over the triple. I'm building a Destroked 2.1lr so I won't be making near the torque that I was making with the 2.4. The 615tq HD clutch should be plenty for the amount of power tq the car should be making once its done.
Yeah your cutting the tq way down by doing that. I am sure you will make the power the twin will handle maybe a good choice to go with.
Originally Posted by letsgetthisdone
If you follow the link, the twin looks like the exedy, with each disc have it's in spline hub section as part of the disc. But then the triple does not look like the Exedy, the center hub is large in diameter like the OS Giken.
Yeah regardless of what it looks like I'm sure it will hold up pretty decent.
If you want to rev high + daily drive with 600+ ft-lb and don't mind a little noise, Exedy twin HD has sprung disks with input shaft splines built into the clutch disks. It will do the job and it's a reliable clutch. If you know you will only rev to 7500rpm max and want to have the quietest 600+ ft-lb clutch with a little more difficultly to daily drive, look at the ACT 6 puck sprung.
I've used the Exedy twin, triple, (push and pull styles), ACT XTSS, as well as the ACT 6-Puck Sprung and I found that the Exedy twin and both ACT's are very daily drivable. The Exedy twin will launch better and shift at very high RPMs better than both ACTs. If you are in uphill traffic all the time, you will DESTROY every evo clutch (including the stock one) and it will be hell.
The XTSS ACT failed me and was so melted beyond replacement. Replaced it with the exedy twin, going to keep using it till it gives out then replace with the OS-Giken. I've purposely kept the torque low by keeping it 2L, the extra stroker torque is nice but not worth the driveline issues IMO
Originally Posted by Pal215
If you want to rev high + daily drive with 600+ ft-lb and don't mind a little noise, Exedy twin HD has sprung disks with input shaft splines built into the clutch disks. It will do the job and it's a reliable clutch. If you know you will only rev to 7500rpm max and want to have the quietest 600+ ft-lb clutch with a little more difficultly to daily drive, look at the ACT 6 puck sprung.
I've used the Exedy twin, triple, (push and pull styles), ACT XTSS, as well as the ACT 6-Puck Sprung and I found that the Exedy twin and both ACT's are very daily drivable. The Exedy twin will launch better and shift at very high RPMs better than both ACTs. If you are in uphill traffic all the time, you will DESTROY every evo clutch (including the stock one) and it will be hell.
With lockout issues it does . ACT clutches are prone to lockout after 7500rpm even with a very healthy clutch pedal adjustment. Exedy clutches don't seem to have the issues as badly.
The XTSS ACT failed me and was so melted beyond replacement. Replaced it with the exedy twin, going to keep using it till it gives out then replace with the OS-Giken. I've purposely kept the torque low by keeping it 2L, the extra stroker torque is nice but not worth the driveline issues IMO
There are definitely compromises involved. The ACT TOB is what failed when I replaced my XTSS with an Exedy twin. Now i'm running an ACT 6-puck sprung until it breaks, then i'll put another twin inside. 2.0L will still cause driveline issues if launched a lot and driven hard, but it will certainly last longer than a 2.2-2.4L under the same conditions.
With lockout issues it does . ACT clutches are prone to lockout after 7500rpm even with a very healthy clutch pedal adjustment. Exedy clutches don't seem to have the issues as badly.
Where as hopefully the osgiken wont have the problem at all. Only had the exedy lock me out once so far.
ORC 659 Twin plate is a very good option too.
These things shift absolutely amazingly. Driveability is super easy, my wife can drive my car with no problems. http://www.ogura-racing.com/metal_clutch.html
I can supply these directly from ORC (Ogura Racing Clutch) if anyone wants them.
Around $1850USD including shipping.
Main advantages:
Amazing shift performance. Full wheelspin 1st to 2nd gear shifts are no problem at all.
Central Single Spline design. This stops lots of issues of stripping the splines. Super strong and allows another degree of freedom/release.
Full OEM style installation. No conversions. Use OEM flywheel bolts and release bearing.
Super easy to drive. Engagement is very smooth.
Reasonable cost - cheaper than Exedy Twin.
On paper they hold 750nm at the engine. We have run these in cars up to 670whp (500kwatw) with no problems (Just be mindful of mindrange torque).
Components are individually balanced from ORC.
ORC 659 Complete assembly ORC 659 Flywheel ORC 659 top floater plate (NOTE it's balanced from the factory) ORC 659 centre floater plate with central hub and sprung discs ORC 659 Sprung discs ORC 659 sprung disc weight. 2.45kg for both discs and central spline hub. ORC 659 solid disc weight. 1.87kg for both discs and central spline hub. ORC 659 installed pic. NOTE PULL type is retained. 100% factory installation.
I can support what he said above. I have the 659D for about two years but without many miles to provide a better feedback on those. The clutch is very street friendly, it has the chutter that all multiple discs have, but the engagement is very smooth. I was searching for a twin disc with dampers and I chose this. It was also cheap (around 1.300bucks). This is my first twin disc so I do not know where this clutch stands in terms of competition(OS Giken, Quartermaster, Exedy etc). Although it is rated at 650ps and 735lbs of torque, i made 750whp on my 2.4 and is holding fine
About to get this clutch now but with the disc diameter being bigger than the exedy have there been any concerns with high rpm lockout? If so what do you rev to? Looking at doing a 2.2 high rev.
Big fan of the Exedy Triple at this point. I've driven one for a few months and its a nice clutch.
Dan's silver 1100whp evo has one and an H pattern dog box. He ninja shifts his car and runs a (edited) 3.2 60-130mph . The car also went 182 this weekend at the TRC invitational. I can't say it gets any better then that.
. ACT clutches are prone to lockout after 7500rpm even with a very healthy clutch pedal adjustment. Exedy clutches don't seem to have the issues as badly.
