EXEDY HF01 Chromoly Racing Flywheel

This is way thinner and lighter than the stock clutch, and in the first 50 miles of driving I noticed that it does buck and surge more than with the stock clutch and flywheel when the car is driven at low RPMs, just above idle, about 1500rpm or so.Does it rev faster? I've yet to blast it to redline find out :)My only thing is that it is so much thinner and lighter than stock that I worry that it won't hold heat as well, but how much more heat can the stock clutch take before it breaks? I know that my old one broke at about 175k...wasn't even racing it.Ok after 500 miles I have to update this.I think that I would rather have gone for the heavier weight of the stock flywhee.I put in an Exceedy "performance" clutch 20% over stock HP along with this flywheel into my '98 GS-R.You will definitely know that you have a performance clutch in, the lever force is much higher than stock. I have to consciously hold the clutch all the way down. But it fits fine, works like a clutch should work...seems ok. I will probably never launch it but I drive my car pretty hard so it will get used well. I also got an Exceedy performance flywheel and between the two over time I tell ya, the clutch is really clunky and then you have a light flywheel...the combination is a bit hard to use, it's really touchy off-idle, it's a bit of a pain in the ass to just drive in "cruising" mode at low RPM. The revs don't have to get too low before the car will start to buck and shudder, maybe 1500rpm which the stock flywheel will handle easily. This combination is made for when you want to "get on it" not for when you're just cruising around at low speed. And in hindsight I think that given the pedal load I would rather have gone for a clutch with 40% over stock rather than only 20% over. Also I don't see any real performance-improvement in terms of revving with the lightweight flywheel. I would probably have put in the stock flywheel or something close to it in inertia, with the high-perf clutch especially given this level of lever-force required just to get the clutch all the way in. Then you can drop some real HP into the clutch without worrying about smoking it or frying the flywheel despite all that lever-effort. But sure, maybe for a 1/4 mile run this light flywheel might save you half a second (it's not like the car revs twice as fast just because it has a lighter flywheel, though this is definitely thinner and lighter than the stock flywheel). I would guess that being limited to only 20% over stock will cost you that 1/2s at least. Anyway in the end keep in mind that you will have to deal with the higher clutch lever load on each shift. You rarely if ever will put the full stock HP into the clutch not to mention run it at full power. So either go stock and deal with the limited power capacity or go with a solid increase in performance-capacity. Don't try to split hairs. You'll just end up with a clutch-flywheel combo that's always hard to use and extremely-finicky, but barely any better or stronger than stock and rarely even shows an advantage over stock. If you're going to end-up putting all that effort into shifting and driving the car, then you want to be sure that the clutch is way stronger than stock but just as flexible. So I'd go with 40% over stock HP and the stock flywheel-weight. The lever may be even heavier, but you won't have to shift it as much and you'll have much more power-capacity in the clutch for all that extra effort. Or just replace the stock clutch and flywheel with equivalent parts. If you're running the stock engine, that makes perfect sense unless you're sure that the stock clutch isn't strong enough. But still use the stock flywheel weight/inertia.

Installed this on my 98 integra and it made a huge difference on response and acceleration. I didn't have any issues with stuff lining up and fitting. Had it on my car for years as a daily driver without any issue. Before this flywheel I had installed a lightweight flywheel and heavy duty clutch from some piece of sh*t brand called XTD which bent my clutch fork and then the flywheel teeth started wearing down until my car wouldn't start. Moral of the story: stick with good name brand parts like EXEDY for major mods!

Half the weight over my stock FW. And anyone that says they're hard to drive street with, obviously doesn't have one. I didn't have to change my shifting and the faster revs and drops makes the cars engine more responsive and fun to drive. After all isn't that why you bought a stick shift? I did however raise my idle from 750 to 1000 to smooth out vibrations the lighter FW transfers. And that safely made my idle smooth as butter and no vibration transferred from my engine to cabin due in part to my solid torque mounts.

I bought this Flywheel with the clutch for my 1994 Acura Integra. The result was fantastic for OEM replacement. I recommend this product for drivers who do not abuse their clutch.

Perfect fit on a B16A1. Significant change to engine speed, especially while free revving.

loved it!!!!