[Jeff@TopGearSolutions]

Originally Posted by jacobniell

Is there any chance that a DMFW would be designed to handle more than the 500hp?

I am running my car with upgraded turbos and are one of them that is limited to more boost due to the misfire problem.
I do not want to change to a SMFW as it makes to much noice for my tast after all it is my daily driver.
Best

As the DMFW ages they become imbalanced.

A fresh DMFW can probably handle over 500HP for quite sometime, exactly how much or how long I'm not sure.

If it's worth it to you to keep the DMFW, I'd try a new DMFW.

As far as someone upgrading them further, I'm sure it's possible but I honestly don't know any company in development.

[jacobniell]

Thank for you reply, I was toled that you could use a 650i clutch and DMFW and that this would hold 600 HP, so I will be investigating if this is possible, to get a manuel 650i and if it would fit the car.

Once again thanks for your comments, they are appreciated.

Best
Jacob

[Cory S]

75% of people over clutch their setup. Spec underrates their clutches big time. A stage 2 and 2+ will hold anything people have here. The stage 2 and 3 also use the same pressure plate. You will also break more drive line parts with a non-forgiving clutch that has ZERO slip. I've installed over 25 Spec clutches, and all of them performed flawlessly. Two of my own Spec stage 2 installed cars made between 625-655lb-ft of torque. Both never slipped, and took drag strip abuse on slicks and drag radials.

Install and attention to detail goes a long way. Break-in for 10-12 hours make for smoother operation also. Can't really go by the 500 mile rule, because one could drive 500 miles in top gear most of the time.

[DLNKWNT]

Can a spec stage 2/2+ disc be used with a 550 clutch?

[Jeff@TopGearSolutions]

Originally Posted by Cory S

75% of people over clutch their setup. Spec underrates their clutches big time. A stage 2 and 2+ will hold anything people have here. The stage 2 and 3 also use the same pressure plate. You will also break more drive line parts with a non-forgiving clutch that has ZERO slip. I've installed over 25 Spec clutches, and all of them performed flawlessly. Two of my own Spec stage 2 installed cars made between 625-655lb-ft of torque. Both never slipped, and took drag strip abuse on slicks and drag radials.

Install and attention to detail goes a long way. Break-in for 10-12 hours make for smoother operation also. Can't really go by the 500 mile rule, because one could drive 500 miles in top gear most of the time.

I agree, Spec does under-rate their clutch and the break in for 500 miles means mixed driving and different heat cycles, not just 500 miles on the highway.

[Mike@N54Tuning.com]

Originally Posted by Cory S

75% of people over clutch their setup. Spec underrates their clutches big time. A stage 2 and 2+ will hold anything people have here. The stage 2 and 3 also use the same pressure plate. You will also break more drive line parts with a non-forgiving clutch that has ZERO slip. I've installed over 25 Spec clutches, and all of them performed flawlessly. Two of my own Spec stage 2 installed cars made between 625-655lb-ft of torque. Both never slipped, and took drag strip abuse on slicks and drag radials.

Install and attention to detail goes a long way. Break-in for 10-12 hours make for smoother operation also. Can't really go by the 500 mile rule, because one could drive 500 miles in top gear most of the time.

+1 on SPEC underrating..

SPEC 2+ is great for most and if you have upgraded Turbos, 3+ is probably the way to go.

Mike

[Boss777]

HI all.
I was about to get spec 2+ but was not sure where or if I need flywheel and since now I herd that they are unbalanced.
can any one provide me link for spec 2+ with a good price and posible flywheel

[JasW]

Originally Posted by Lshaw

So I am about 1k miles in on my stg3+/smfw. How high is everybody's engagement point. During break-in, and currently, my engagement point is about 1/8 of pedal travel (opposite of floor), relatively high. Ive always been used to heavy low engagement point clutches as I can shift quickly by flooring the clutch and releasing, but the high engagement point is growing on me, I can shift just as fast, with minimal effort.



Is this normal for spec clutches? Just curious, as there is so much excess pedal travel now and basically nullifies clutch stop, as I don't the engagement point is no where near the floor.

Originally Posted by Jeff@TopGearSolutions

Curious on more feedback too.

My Spec 3+ was installed less than a week ago, and the engagement point is pretty high -- halfway? hard to quantify from feel alone. I really hope it drops lower as the clutch is broken in. Shifting into first from a stop has been the real adjustment with the high engagement point. I feel like a learner, and occasionally get the jerkies and the overrevs to go along with it. And I've been driving a stick exclusively for 25 years....

[DR-JEKL]

Originally Posted by JasW

My Spec 3+ was installed less than a week ago, and the engagement point is pretty high -- halfway? hard to quantify from feel alone. I really hope it drops lower as the clutch is broken in. Shifting into first from a stop has been the real adjustment with the high engagement point. I feel like a learner, and occasionally get the jerkies and the overrevs to go along with it. And I've been driving a stick exclusively for 25 years....

Hows the chatter? Obviously you dont regret the purchase/setup?

[Lshaw]

Originally Posted by JasW

My Spec 3+ was installed less than a week ago, and the engagement point is pretty high -- halfway? hard to quantify from feel alone. I really hope it drops lower as the clutch is broken in. Shifting into first from a stop has been the real adjustment with the high engagement point. I feel like a learner, and occasionally get the jerkies and the overrevs to go along with it. And I've been driving a stick exclusively for 25 years....

Its been about 25k on my spec 3+, engagement doesnt lower. Learning curve is quick, enjoy the quicker shifts!

[Lshaw]

Originally Posted by DR-JEKL

Hows the chatter? Obviously you dont regret the purchase/setup?

With raised idle to 850rpm, chatter is still very minimal. Zero regrets and absolutely worth it.

It will chatter on some occasions, but loudest would be 4/10.

[JasW]

Originally Posted by DR-JEKL

Hows the chatter? Obviously you dont regret the purchase/setup?

The chatter isn't bad at all. I only hear it in my garage bouncing off the wall, sounding a bit like a truck at idle. Idle is at 700 RPM. NO RAGRETS. Particularly because the torque I'm running utterly destroyed the supposedly sturdier-than-the-norm stock 335is clutch. I probably could have gotten away with the 2+ (as Jeff will be the first to attest, lol), but at least I know that no matter what, it's not going to go b/c of too much power/torque.

[JasW]

Originally Posted by Lshaw

Its been about 25k on my spec 3+, engagement doesnt lower. Learning curve is quick, enjoy the quicker shifts!

If that's where the engagement point stays, so be it. I'm getting used to it. The initial few shifts into first from a stop were hilarious.