2600 too much pressure?

[spectr019]

When I bring the dsm ('96 AWD) outta storage in a few weeks I've planned on throwing in an ACT 2600 pressure plate with a street disc. I've had the 2100 for almost 3 years now and it is just about spent.
I've lately seen that a 2600 will give me a much greater percentage of having crankwalk. Running 13s on a bad 2100, am I going to be safe of crankwalk with a 2600 with a street disc? I don't know advantages/disadvantages of a 4/6 puck disc compared to a street disc. Thank you for any advance on the matter.


Ben

p.s.- okay so I now understand that anything more than a street disc is for well over 400hp...don't think I'll be needing anything other than the street, that's for sure.

 

[JayRolla]

No one will really say you will be safe. I can say most instances of crankwalk caused by a large clutch was a 2600. The 2600 is a great clutch and you would like it, but crankwalk can happen regardless of clutch choice. Only about 15% or less of 2g's where reported to get crankwalk.

I run a 4 puck ceramic sprung disc and love it. It not only handles more power but it last longer and will take launches over and over better than an organic street disc. Ive seen buddys tear through a new act street disc after alot of repeated launches. The puck style ceramic discs can handle a lot more stress and heat.

 

[spectr019]

Thank you for the response. Okay so I'm comfortable getting the 2600 pressure plate, now I'm just onto the disc. I feel that anything more than the street disc will be too much...I'm only running a ported FP Big28 with 550cc and a 190lph re-wired pump with all of the exhaust (3" throughout, no cat) and cooling (28x12.5x3.5 intercooler) and other various support mods...I don't know if I've gone hardcore enough to necessitate the 4 puck. But again, I'll be the first to admit that I don't know the absolute best parts for the mods that I've accomplished so far. So would a 4 puck be more appropriate for my setup? And if so, the solid hub or spring centered? If I stay with a street disc, is the only downfall that I'll go through a few more of them than I would with a 4 puck? Or would a 4 puck grant me more torque? Thanks for all your help man

Ben

 

[400awhpgsx]

Only about 15% or less of 2g's were reported to get crankwalk.

where did you hear/read this?

 

[spectr019]

and that's why we would want to go to a 6 bolt, right?

 

[Detail]

If your 2100 held fine then the 2600 will hold more. I would not recommend the 6 puck as imop I don't like the way it engages on the street. It's very grabby. I like the smoothness of the regular disc style. I bet I'm the minority though.

 

[DGajre777]

I have a ACT 2100 with a 6 puck sprung hub disc and I love it. It drives like a street disc, but it is a little hard on the car during high RPM shifts.

As for the advantages or disadvantages of a 4/6 puck vs a street disc - please search.

 

[Detail]

I have a ACT 2100 with a 6 puck sprung hub disc and I love it. It drives like a street disc, but it is a little hard on the car during high RPM shifts.

As for the advantages or disadvantages of a 4/6 puck vs a street disc - please search.

told you i'd be the minority!

 

[2gGSX]

I was in somewhat the same situation when I had to get a new clutch earlier this year. Just to save myself the peace of mind I decided to go with a light pressure plate and a 6 puck disk. The Fidanza 4.3 is rated for over 600 ft-lbs of torque and only uses a ~2200 lbs pressure plate. The engagement really isn't as bad as people say it is--it's a clutch, so you can learn to drive it just like anything else.

Another option if you're looking to go the 6 puck disk route are ClutchNet disks, which a lot of people have had pretty good luck with.

 

[DGajre777]

Oh and the ACT 2100 with a 6 puck disc is rated for more torque than a ACT 2600 with a street disc.

 

[Detail]

Oh and the ACT 2100 with a 6 puck disc is rated for more torque than a ACT 2600 with a street disc.

Really? I never new that.

I just hate the fast engagement. I'm used to my 6 puck...trust me. It's all good when racing, sucks when your chic is taking a sip of beverage. I'm getting close to putting a warning sticker that says:

"Driver not responsible for lost or "misplaced" beverages"

 

[snowborder714]

Really? I never new that.

I just hate the fast engagement. I'm used to my 6 puck...trust me. It's all good when racing, sucks when your chic is taking a sip of beverage. I'm getting close to putting a warning sticker that says:

"Driver not responsible for lost or "misplaced" beverages"

You let people drink in your car?!?

You just need to say no eating or drinking. Some people are lucky to get into my car with a bottle of water.

I run a 2100 with a street disc and like it (other than it's wearing out). It's easy to slip but still feels and grips a lot better than stock. I haven't tracked the car yet though so I'm not sure how it feels in that area.

 

[spectr019]

hahahaha I have the same position!!!! If somebody has some food, I make them finish it before they get in!!! Fools think they can eat in a dsm!!! I really really like my 2100 also. I put it in back with the T25 and unmodified fuel trims, only with opening up all the pipes, so I didn't have a hell of a lot more of torque. I've done probably in a random guess ~70 launches on my 2100. I've had it for about 2 years, and now it's just about gone, especially since I've done more than I originally planned. I'm thinking I'll go with the 2600 pressure plate and the street disc. After I put the 2600 in, I'm hoping to get into the 12s this season!! Thanks for all your opinions yall


Ben

 

[bmoha2]

a sprung clutch to a rigid. Seems to be a lot easier on the drivetrain. Unsprung clutches just seem too brutal for a heavy car high horsepower.

 

[nfernotalon]

I Have a six puck in and its not too bad on the street, it chatters a bit if I dont pay attention or im in a hurry.

I have a pizza box with crusts in it what does that mean? People can eat in my car, just clean your shit up.

 

[DGajre777]

Really? I never new that.

Yup!

http://www.dsmtuners.com/forums/dri...sc-sbr4000-act-2100-w-sprung-6-puck-disc.html

 

[spectr019]

Will I need the slave cylinder extension rod for the 2600 and street disc? Or just make sure to properly adjust the oem rod/clutch pedal? Thanks

Ben

 

[snowborder714]

The extended rod is just a band-aid fix. Just make sure everything is properly adjusted and you'll be fine.

 

[JayRolla]

I have a ACT 2100 with a 6 puck sprung hub disc and I love it. It drives like a street disc, but it is a little hard on the car during high RPM shifts.

As for the advantages or disadvantages of a 4/6 puck vs a street disc - please search.

How high of rpms are you talking about. My 4 puck sprung shifts very smoothly up to 7500rpms. I heard anything other than a twin disc setup gets hard to shift that high.

 

[turboglenn]

I ran a 2600 for years with a street disk and never had any issues withcrank walk on y 97 7-bolt motor.

I'm sill using it but have swapped to a 6-bolt motor because i blew the 7 bolt running lean. I say go for it. Crank walk is always talked about, but i've only seen a handfull of them with crank walk in the 10+ years i've been wrenching on them. DO IT!!!!!!!!!.

Just keep up on your oil changes and you'll be fine IMO, although i can't gaurantee anything, i've seen 7 bolts handle the 2600 all day long being beat to hell and back.

 

[DGajre777]

How high of rpms are you talking about. My 4 puck sprung shifts very smoothly up to 7500rpms. I heard anything other than a twin disc setup gets hard to shift that high.

7500 RPMs. I'm using synchroshift and I hear occasional crunch in my second gear during a 1-2 shift. All the transmission shops that I've talked to have told me that puck discs are hard on synchos (unsprung harder than sprung). I'm changing to Redline fluids in a week and will see if that changes anything.

I ran a 2600 for years with a street disk and never had any issues withcrank walk on y 97 7-bolt motor.

I'm sill using it but have swapped to a 6-bolt motor because i blew the 7 bolt running lean. I say go for it. Crank walk is always talked about, but i've only seen a handfull of them with crank walk in the 10+ years i've been wrenching on them. DO IT!!!!!!!!!.

Just keep up on your oil changes and you'll be fine IMO, although i can't gaurantee anything, i've seen 7 bolts handle the 2600 all day long being beat to hell and back.

Agreed! My next clutch is going to be a 2600 or a 2900 with a street disc.

 

[JayRolla]

7500 RPMs. I'm using synchroshift and I hear occasional crunch in my second gear during a 1-2 shift. All the transmission shops that I've talked to have told me that puck discs are hard on synchos (unsprung harder than sprung). I'm changing to Redline fluids in a week and will see if that changes anything.



Agreed! My next clutch is going to be a 2600 or a 2900 with a street disc.

Jack told me that pretty much any ACT clutch above 8000rpm's is impossible to shift smooth even with the best tranny he can make. Now through a twin disc in and its smooth shifting to 9000+rpms.

Im shifting at about 7000rpms and its very smooth. Turbo runs out of juice so never have taken it any higher. The tranny actually shifts 10 times better at 7000rpm and wot than it does just regular driving. I love his tranny and this clutch setup.

 

[DGajre777]

Jack told me that pretty much any ACT clutch above 8000rpm's is impossible to shift smooth even with the best tranny he can make. Now through a twin disc in and its smooth shifting to 9000+rpms.

Im shifting at about 7000rpms and its very smooth. Turbo runs out of juice so never have taken it any higher. The tranny actually shifts 10 times better at 7000rpm and wot than it does just regular driving. I love his tranny and this clutch setup.

I probably just have a worn 2nd gear synchro. I'm still on my stock tranny with 70k miles.

 

[DSMopar]

I agree with the 2100 crowd, why not just get a new disc? You have the PP already, and you don't have to worry about the extra pedal effort ruining your crank thrust surface.

I have this hybrid disc /2100 in my car, I likes it. Pretty much acts like you'd expect, relatively smooth engagement initially then gets exponentially grabby as you let off the pedal. My clutch guy 'claims' it can handle 400ish WHP

 

[spectr019]

wanna make sure that I understand...when people say that their clutch is slipping, chances are it's going to be the disc and not the pressure plate?

ben