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act flywheel

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turbotalontsi

Probationary Member
9
0
Oct 4, 2002
st._louis_mo
has anyone put the light weight act flywheel in there car, does it really help and does it idle funny or die when you push in the clutch? it would be on a 2g fwd
 
I have a Fidanza flywheel. I heard that it may cause idle problems, but my car idles just fine. In neutral the engine revs a lot faster, in gear (where it counds) it does seem to pull a little harder. I am very happy with the purchase, and I would reccomend it to anyone who needs a new flywheel. 1 more great thing is the Fidanza (And most other aluminum flywheels for that matter) have a replacable steel friction surface, so you never have to buy a new flywheel, just replace the friction surface. They cost about $80. Good luck with your purchase.
 
I've got a Fidanza as well. The engine spins up (and down) a lot faster; this means higher launch RPMs, and generally takes a little getting used to for day-to-day driving. (At this point, it's second nature for me.)

I've experienced absolutely no idle problems, and I'd be hard-pressed to get the car to die; run to redline, press the clutch, and just let the RPMs fall, and MAYBE it'll die, but it's not something I've experienced.
 
I have the 11.5lb ACT flywheel in my 1G AWD. I don't have any idle problems at all. I'm still breaking in the clutch/engine rebuild so we'll see how much I like the flywheel once I can give it some stick.
 
Eric I also have a 1G AWD and am looking into the ACT flywheel. I would be very interested to hear your comments once you break your clutch in.

Thanks,
Danny
 
Keep me updated as well. I was considering one but wanted to hear a few reviews of it first.
 
Well, here's my initial impression of it after about 300 miles of driving.

Fit and finish on the piece were both excellent. All of the holes and edges are properly radiused so as to prevent stress risers. Step height was right around 0.610. Installation was identical to the stock flywheel.

It seems to make the biggest difference in first gear, third gear seems to be closer to the stock flywheel. I don't have any solid numbers to back this up, this is just all from the butt dyno.

It has definately sped up shifting as the engine spins down much more quickly now. It has taken some adjustment for doing rev-matched downshifts, as I tend to either over-rev it a bit or am too slow to let the clutch out and end up under-revving the downshift. It does make rev-matched downshifts much quicker.

It does want to die a little when coming to a stop with the clutch pushed in, but that was mainly because I had my idle set around 650 RPM. Its been much better since I bumped it up to around 800 RPM.

Please note that I also removed my balance shafts, fixed a problematic knock sensor, and fixed my worn out clutch pedal, so my results may be a little skewed.

EDIT: The change isn't as dramatic as the Fidanza flywheels, but it definately noticible vs a stock flywheel.
 
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