act 2600 or 2900

[nytescion]

hey all I'm getting my built motor back tomorrow and I'm looking for a clutch to buy. A friend of mine has a 2600 with street disk for sale for a pretty good price and I was wondering if that would be ok to use. I'm shooting for around 500hp. The car would be daily driven up until break in period for clutch and motor is finished then only driven on weekends to car shows and to test and tunes.

 

[DGajre777]

500hp to the wheels or crank?

 

[nytescion]

to the wheels, sorry about that

 

[blownturbotsi]

I'd like to hear feedback as well. I've heard the 2900 doesn't have the peddle pressure or the shock of the 2600, but has more clamping force and better drivability.

 

[dsmchick44]

The ACT 2600 is an awesome clutch, there are plenty of people running them. Its pretty streetable as well. Its stiff on your leg at first, but not overkill.





Jessica

 

[layzie12g]

I have a 2600 in my car with the street disk and I swear it engages half inch off the floor. Its shimmed and everything. As far has your horsepower goes you should be good to go. A guy has a 1st gen with the 2600 and street disk and he has been running low 11s on it for a while. You will be making a little more power then he is I think.

 

[blownturbotsi]

Any more information on the actual comparison? 2600 v 2900?

 

[1992awdlaser]

I wouldn't even think about using a 2900. If you are thinking you are going to need more then the 2600 might as well get a twin disc clutch. The 2600 should be fine though depending on how the other guy treated it.

 

[DGajre777]

Go with the 2900 for 500whp, IF you plan on using the street disc. The 2900 has a different pivot point than the 2600 which results in the same (if not lower) amount of pedal pressure than the 2600.

ACT2600:
Applications: Mitsibishi Eclipse 90-99 Turbo (4G63)
Clutch Kit Number: MB1-XTSS
Torque Capacity: 400
Pressure Increase: 58% Over Stock
Weight: 13 lbs.
ACT Pressure Plate: MB-010X
ACT Disc: 3000303
Release Bearing: RB210
Pilot Bearing: N/A
Alignment Tool: AT20

ACT2900:
Applications: Mitsubishi Eclipse 90-99 Turbo (4G63)
Clutch Kit Number: MB1-XXSS
Torque Capacity: 490
Pressure Increase: 58% Over Stock
Weight: 13 lbs.
ACT Pressure Plate: MB-010XX
ACT Disc: 3000303
Release Bearing: RB210
Pilot Bearing: N/A
Alignment Tool: AT20

The numbers above are when used with a street disc. If you use a sprung 6 puck, it will be able to hold a higher torque capacity. My ACT 2100 with a 6 puck sprung hub disc is rated for a higher torque capacity than a 2600 with a street disc. If you plan on using a puck disc, you can get away with the ACT 2600 instead of the ACT2900 with a street disc. You have an AWD, the drivetrain stress will be higher than a FWD.

As for comparisons:

http://www.dsmtuners.com/forums/drivetrain-tech/259276-act-2600-2900-help-me-pick.html

http://www.dsmtuners.com/forums/newbie-forum/249082-difference-act-2100-2600-2900-a.html

http://www.dsmtuners.com/forums/drivetrain-tech/230110-act-2600-2900-a.html

http://www.dsmtuners.com/forums/newbie-forum/223291-act-2900-act-2600-act-2100-a.html

http://www.dsmtuners.com/forums/drivetrain-tech/120106-act-2600-vs-2900-a.html

http://www.dsmtuners.com/forums/newbie-forum/85929-2100-2600-2900-a.html

 

[Clutch GSX]

Ive heard that fidanza is better for a couple different reasons including the ease of use for daily driving and reliablilty. Check out the fidanza 4.3 clucth kit. I have the same goal as you and im getting the 4.3.

 

[DGajre777]

Ive heard that fidanza is better for a couple different reasons including the ease of use for daily driving and reliablilty. Check out the fidanza 4.3 clucth kit. I have the same goal as you and im getting the 4.3.

Have fun with the ceramic 6 puck disc! Personally, I'm going with a street disc for my next clutch. The engagement is harsh, especially from a stop and is hard on the synchros, but then again mine is probably amplified by poly. motor mounts and a stiff suspension.

 

[1gDSM4g63]

You need to rebuilt your transmission first. If it is completely stock the 2600 or 2900 will destroy you transmission.

 

[1992awdlaser]

You need to rebuilt your transmission first. If it is completely stock the 2600 or 2900 will destroy you transmission.

Don't spread mis-information.

 

[1gDSM4g63]

Don't spread mis-information.

Ok, sorry about that.

You can go 2900 or double disc clutch with 1000 hp and it will not ever do any damage to your transmission as long as you drive like a granny if that's the case. However I'm assume he is asking whether or not to go with the 2600 or 2900 because he's actually going to drive hard.

 

[blownturbotsi]

I've had bad syncros in my tranny for about 3-4 years, grind 2nd the most. All I do is change the transmission fluid often and it's still moving good. No ACT though, just CFDF.

 

[1992awdlaser]

Ok, sorry about that.

You can go 2900 or double disc clutch with 1000 hp and it will not ever do any damage to your transmission as long as you drive like a granny if that's the case. However I'm assume he is asking whether or not to go with the 2600 or 2900 because he's actually going to drive hard.

MANY people run the 2600 and 2900 on stock transmissions.

 

[Clutch GSX]

Have fun with the ceramic 6 puck disc! Personally, I'm going with a street disc for my next clutch. The engagement is harsh, especially from a stop and is hard on the synchros, but then again mine is probably amplified by poly. motor mounts and a stiff suspension.

Yeah that was my concern too as ill be truely daily driving it but ive heard its not that bad, just takes some getting used to. Do you have a different experience or are you just assuming its hard to drive?

 

[DGajre777]

Yeah that was my concern too as ill be truely daily driving it but ive heard its not that bad, just takes some getting used to. Do you have a different experience or are you just assuming its hard to drive?

I have a 6 puck sprung hub ceramic disc, had it for over a year. In heavy traffic, driving is a pain! Chatter is a little annoying, but I overcome this by launching at a higher RPM. The instant engagement is fun though!

 

[maximumbob]

Hard on the synchros? I had a CM2500 and now have the 2900 with the sprung six puck. It enagages hard, however everyone expects that from a six puck. The more you slip it the harder it tries to grab so be prepared to never drive in stop and go traffic because of serious chatter. I will just wait for big openings when I get stuck. Other than that I love mine with a stock 135k tranny. It also shifts better than the CM2500 I had in it. I forget who said it but completely agree with the following statement,"I consider my six puck to be an added security feature." It died the first time I moved the car.

 

[Jrgunn5150]

You need to rebuilt your transmission first. If it is completely stock the 2600 or 2900 will destroy you transmission.

I'm new to the whole DSm thing, but not to car's, or fast car's. I can't imagine how a clutch, any clutch, no matter what stage or whatever, would destory your trans?

 

[subie22]

it wont just mis-informing people. I have had one in my car since i got it. Didnt notice a difference in pedal pressure, i have always had aftermarket clutches in most of my cars. So it feels normal for me. If i drive a car with real light pedal i feel like something is wrong. I can just inmagine if i had to drive a stock car again ..

 

[8urv8]

I had the 2600 and currently have the 2900. Both with a street disk. The 2900 feel's exactly like the 2600 as far as pedal pressure. The 2900 engage's about 3 inches off the floor where the 2600 was about 6. The 2900 chatter's a little if you don't have the rpm's up when you slip it taking off. I just like the piece of mind of having a little more clamping force.

 

[nytescion]

well i was trying to more or less drive it out to the track or on nights. i just don't want to get one and after a few launches it's done. I was something that can take the abuse but not die on me after a few months of being launched on. I don't have to worry about traffic situations seeing as this isn't my daily.

 

[DGajre777]

Hard on the synchros?

Yup! Send an e-mail to John at TRE or Shep and they'll all tell you the same thing. It (6 puck) is hard on the synchros when you shift at higher RPM due to the instant engagement and drivetrain shock. It is also harder to slip it during a launch, when compared to a street disc.

 

[Black_Bullet]

Yup! Send an e-mail to John at TRE or Shep and they'll all tell you the same thing. It (6 puck) is hard on the synchros when you shift at higher RPM due to the instant engagement and drivetrain shock. It is also harder to slip it during a launch, when compared to a street disc.

I am currently in the market for clutches as I just destroyed my current one taking it to the track yesterday.
( Too much power on it now for a race gas tune and high boost.)

So now I want something capable of handling 5500 rpm 2step launches with 500 lb/ft of torque;
and not start slipping after a few runs...

That is the rpm i launch at, but no im no were near 500 lb/ft of torque, more like 350
( which was what my last clutch setup was rated at that i destroyed.)
I strongly believe in having leeway so i like to over kill things a little bit.

I am almost positive i want the act 2900 pp, but havent decieded on which disc to run yet.

Now speaking of over kill, i dont want to over kill driveability.

In a previous fwd dsm i used to own a 2600 on street disc and it was stiff but i didnt mind.
Everyone is saying the 2900 is easier to drive then the 2600 so therefore that should be no issue, so i wont feel as steered away from a harsher disc.

Except, my issue with the harsh ( i guess 6 puck, or even 4 puck) discs are that i dont want to prematurely kill my syncros; OR cause abnormal disengagment issues, or making shifting harder.

Tranny already has a nickle sized washer on pivot ball, and i have a steel braided clutch line to help pedal pressure. Possibly i will have to extend master cyl rod with a nut welded to pedal assembly maybe . I dont like pedal pressure to be within a inch off the ground like the other guy mentioned, id rather more like 2-2 1/2 inches in case i need to slip longer.
Dont want to snap drive train parts...

I have a rebuilt tranny ( local dsm tranny rebuild from Lancerman )
and double syncro 2nd and thats about it, and my 3rd gear syncro is a little banged up so it is a little harder to go into 3rd gear beyond 7k. ( Possible user error )
Therefore i definitly dont want to stress tranny any further.

Cant afford a twin disc before anyone throws that out. My budget is about 600.
I have a fermaic disc laying around with hardly any miles on it but im going to sell it because previous owner told me the car didnt like to shift well with that. ( Too heavy maybe)

I was thinking of just doing the 2900 with a street kevlar disc, since that will be a good combo
but i dont know how stronge, or how long the kevlar will last with 400+ lbs of torque twisting on it and 5500k launches. my current disc is like half ceramic/ half kevlar and i was thinking one side was slipping worse than the other?

Any suggestions.