1g 500awhp clutch options?

[DSM8urVTEC]

My 1g put down 380awhp before smoking a centerforce df clutch. The pull was on pump gas and was only about 80% into the tune. I don't know what route to go with a new clutch. I really want a twin disc but the money, I just can't swing it, I've heard mixed opinion on running act and other clutches that are not twin disc. I thought a 2600 with a 6puck maybe? Thing is, I haven't done a race gas pull nor do I have it fully tuned on pump so I don't know what kind of power to plan for. What are some of your opinions and what clutch would some of you put in the car? Any help would be appreciated!!

 

[juanpac0]

If you're gonna be putting down that much power AND like shifting at higher RPMs, you've really got to start saving for a twin disc. I'm personally happy with my Fidanza 4.3 so far, I'm 250 miles into the break in and the clutch is already starting to chatter less, pedal pressure isn't much harder than stock either. I believe they're rated to ~450AWTQ.

 

[bluegs03]

As per Jack's Transmissions website, if you ultimate goal is 500 whp go with a act 2600 with a act flywheel, if you think you might go over that then get a twin disk.

DSM Clutch Selection

 

[Boost92awd]

As per Jack's Transmissions website, if you ultimate goal is 500 whp go with a act 2600 with a act flywheel, if you think you might go over that then get a twin disk.

DSM Clutch Selection

The bigger issue is how much torque does he plan to make. With goals that high I would just play it safe and get a ACT 2900.

 

[Black94DSM]

Another thing to mention is the ACT 2900 has a lighter pedal than the ACT 2600.

 

[DECODER22]

look at south bends SS series OFE its rated at 600 tq also has a 2500 lb pressure plate with a pedal that is imbetween stock and ACT witch is awesome i run one personally and its still a full disk

 

[DSM8urVTEC]

Not sure what kind of tourque numbers it will put down. I know that the centerforce was slipping on the dyno b/c at 21lbs of boost on a gt35r 260ft/lbs seems a little low to me. I don't know though. I've thought of going with a act 2900 and a 6 puck?

 

[habitatguy187]

If you're gonna be putting down that much power AND like shifting at higher RPMs, you've really got to start saving for a twin disc.

Supposedly that's the kicker right there, what rpm do you plan on shifting at?

 

[Boost92awd]

Supposedly that's the kicker right there, what rpm do you plan on shifting at?

Also if you plan on doing alot of NLTS then the ACT is not for you and you need to save up for a twin disc.

 

[DSM8urVTEC]

probably going to shift around 7500 or so, possibly 8k. Not gonna be doin no lift shifts.

 

[rock1t]

I am using the SPec stage 3+, and love it. My goals are set at 550 so that's why I went with that one.

 

[kottyking]

Look into the southbend clutches.

 

[andy4g63]

I have ACT 2600+ 6 puck sprung/ACT and ACT flywheel. This set-up is rated at like 505 LB/ft TQ. REDLINE at 8250 RPM. Shifts perfect. You might want to look into 6 puck unssprung, if you do not drive in too much traffic, or I heard, ACT released NEW STREET UNSPRUND DISK... Yes, you've read correct. It depends on your driving habbits. And the 2900, has a lighter pedal pressure, because they changed the PIVOT point, but still is 2900 and this is a lot of pressure on the crank.

 

[kottyking]

Here's what jacks trans say about the 2900 "An ACT 2900 with a 4-puck can go as high as 600HP, but it is so hard to push the clutch pedal in at that point and they drag so badly at high RPM that it's just stupid to run it."

 

[4gsx63]

I have been running the old style ACT 2600/CN 6-puck sprung over a year and NLTS at 8,000rpm without any dragging or other issues. I'm planning to upgrade to the revised ACT 2900 with the same style disk on my new setup. Twin-disk is nice but I got used to this setup and it has been working so well.

Twin-disk is for guys with skinny chicken legs

 

[kottyking]

I have been running the old style ACT 2600/CN 6-puck sprung over a year and NLTS at 8,000rpm without any dragging or other issues. I'm planning to upgrade to the revised ACT 2900 with the same style disk on my new setup. Twin-disk is nice but I got used to this setup and it has been working so well.

Twin-disk is for guys with skinny chicken legs

Or guys that wanna have a high hp holding clutch and be able to drive in daily conditions......

 

[dsm-onster]

Try slipping that clutch at the track where you should be using your 600whp (I mean who builds 500whp dsms and doesn't want to launch and maintain traction by modulating the clutch). You can't have a 600whp car that makes good 60ft times and daily drive it.

 

[kottyking]

Good point Dsm-onster.

 

[rock1t]

Try slipping that clutch at the track where you should be using your 600whp (I mean who builds 500whp dsms and doesn't want to launch and maintain traction by modulating the clutch). You can't have a 600whp car that makes good 60ft times and daily drive it.

There are also numerous problems many people encounter with the twin discs on our cars.

 

[Lumix315]

There are also numerous problems many people encounter with the twin discs on our cars.

Obviously it depends on your driving style, but I'd say bye bye transmission...ha.

 

[slowgsr]

Aside from the price, which when going for this much power and make it go down the track properly, the twin disc is above and beyond and single plate clutch in every way no questions asked. Anyone who claims their single plate is just as good has clearly never drag raced with a twin. Besides twin disc clutches help take shock off your driveline.

 

[dSmgs-T]

Aside from the price, which when going for this much power and make it go down the track properly, the twin disc is above and beyond and single plate clutch in every way no questions asked. Anyone who claims their single plate is just as good has clearly never drag raced with a twin. Besides twin disc clutches help take shock off your driveline.

agreed!

 

[dsm-onster]

Aside from the price, which when going for this much power and make it go down the track properly, the twin disc is above and beyond and single plate clutch in every way no questions asked. Anyone who claims their single plate is just as good has clearly never drag raced with a twin. Besides twin disc clutches help take shock off your driveline.

I can't launch at the track without needing to slip to get the best 60ft if I'm on street tires. More than a few can't launch on drag radials without needing to slip to get the best 60ft.

I think a twin is PERFECT for those who want lots of power and are willing to quickly release the clutch all the time when racing (high enough studder and slicks) and then put the car on the street and drive it everyday being careful NOT to slip the clutch. No single can do that type of duty for as long. And no single can shift as high.

I just don't see the twin surviving the driving I HAVE TO do at the track with this car to get the best results out of the run. Jack of Jacks Transmissions says exactly the same thing. He's run both styles of course. The twin is a perfect piece for some.

 

[99gst_racer]

How high RPM is too high for a single disk clutch?

 

[dsm-onster]

I'm not sure. But Jack also says that its a pressure plate issue, not a clutch issue. The typical large single disk pressure plate likes to "collapse back in" at high rpms. He never mentioned which rpm that likes to happen. I'm sure it's different for different pressure plates. But it's not like you can swap out a clutch disk and it will make much of a difference; since it's pressure plate dependent.

You don't need to shift high anyway