Hey everyone.

Just a few questions about the clutch and flywheel.

Right now I have an Exedy Stage 2 HD clutch. It's a little of a pain in the butt to drive, but I can manage it. (Except in stop and go traffic or trying to move really slow)(but that's also part of me having S2 cams..)

So my first question is.. What would be a nice flywheel to pair up with it? Or does any flywheel work?

Second question is..
Should I just get a better engaging clutch (and flywheel) because this is my daily... I mean I'm not terrible at the clutch, but I would much rather have something more relaxing to drive.

Thanks guys!

 

Not sure on your cam profile and how your powerband looks but I want to guess that your car has issues at idle or close to it with low power and vacuum so I probably say you need a full face disk that can be slipped easily and is made of a uniform material not some kevlar, carbon mix that can chatter.

As far as a flywheel is concerned a lot of people on this forum will tell you to stay away from lightweight flywheels with this car I'm wanting to agree with them maybe a pound or two off but the flywheel will keep your car's momentum going so if you are in stop and go you won't have the engine die on you when you slow down to a crawl.

I personally had great luck with Exedy and have seen ACT clutches do great too. Tons of hit or miss with SPEC some love them and others reported an explosive end to them, and definitely don't buy into that Centerforce weight nonsense which will be nothing but a hassle.

 

Yes, the slipping easily part is a big one. Right now, my Exedy Clutch, I can slip it, but it makes so much noise and I feel like I'm glazing it or something.. It slips kind of tough, but stop and go traffic is a pain.

And for the flywheel, pretty much you're saying, its not worth it because of the horrible drive-ability?

 

Your clutch slipping and glazing could be that it either is worn and not doing a good job at grabbing or was installed on a flywheel that wasn't properly prepped, resurfaced or replaced so the clutch never mated properly to it so it.

There is a thread somewhere on Evom where that question was asked and just about everyone jumped in and said no way to a lightweight flywheel.

I had one on my tuned N/A KA 240sx and later on my 03 350Z and both cars drove fine with it. My 240 even had a lightweight driveshaft. The only thing though is both cars had good or great low end torque. KA is the truck motor as they call it in the Nissan circles and the VQ35 on my 03 350Z had the basic low rev cams with low-end torque so I'm positive that helped get both cars moving and keep them going even with a lightweight flywheel.

The Evo is relatively heavy car to begin with at around 3500lbs. It's AWD so you got a bit extra drivetrain loss and the 4B11 is laggy at the bottom. Add to that you got cams and other mods that shift your powerband higher up on the rev range and you see how trying to take off in traffic gets tricky. With the flywheel swap your engine will want to spin freely but will bog once you slowly slip the clutch because you won't produce enough vac/boost. If you do give it more stick the car will shoot forward probably in the back of someone's bumper. You can pretty much kiss clutch feel at stop and low speeds goodbye.

Not worth it in my book but I am assuming your cams are pretty aggressive and that your powerband is really high up. Ideally I think ACT has two levels of flywheels and really most companies that offer them do. Usually one is some sort of steel that shaves anything from 2 to 8 pounds. The other is usually a billet aluminum or chromoly with steel insert those can take off anywhere from 12 to 25 poounds. I have one left over from my previous Mustang GT Build that is advertised at 20lb. Compare that tothe factory 44lb boat anchor in there. If you must get one go for the heavier steel ones that should retain some driveablity otherwise resurface yours or get a new one and call it a day.

 

There's no actual glazing.. it just grabs so tough that I get paranoid with it lol.

But thanks for the information!

I probably won't get a flywheel.. Gotta drive this to school everyday and I hit traffic almost everyday. Not trying to kill myself or someone else lol.

Thanks again!

 

Cool. Post up what you end up buying and how you like it once its installed.