Effects of lightweight flywheel? [merged] light weight lightened aluminum ACT fidanza

[turbosax2]

Please search next time.

http://www.dsmtuners.com/forums/newb...wheel-one.html
which flywheel would you pick? ACT or Fidanza

[El Cuervo]

Well, I can give you a quick review on the fidanza lightweight flywheel vs the stock flywheel on a pretty much stock motor.
Well, first. Do I recommend it. YES!! Some people say that they are not good for a daily driver. In my opinion, its all the opposite. Its awsome on daily driving traffic. There is much less load on the engine. The car doesn't hesitate alot when on traffic going uphill. I don't have a heavy foot when driving. So this is awsome. RPMs climb a bit faster, but also decend very fast too. Some people have reported car stalling because of how light the flywheel is. You can do a search on it for more details. I personally haven't had any stalling problems. Its easily fixed. Just after going into neutral and RPMs start to decend, give it a quick tap on the accelerator and you are good. Other than that, I can't think of any negative side effects for it. Is it a best bang for the buck? don't really know but it really is a good bang for the buck. Specially if you are doing the work yourself.

[TalonTSIawd1991]

yea try searching the threads first, go with the act 2900

[fulanititoo8198]

I like my 2600 and Fidanza no complaints. A bit lighter then the act.

[jdm_hero]

I purchased an ACT 2600 with a street disc. I'm of course going to go with a new master/slave cylinder, rear main seal/ gasket, oem t.o.b/clip, pivot ball, clutch fork ,ss clutch line , oem flywheel bolts but I'm wondering what ACT flywheel I should get, I noticed there are two different types (Prolite/streetlite)? I did some research and kept hearing about people saying that I would still have to have a machine shop step the ACT flywheel to fit my 2600, I'm doing this job in my garage so I really don't feel like paying 200+ for an aftermarket flywheel that needs to be tweaked before install, is this true?

Thanks in advance

[blcknspo0ln]

If you buy new, an ACT flywheel should be correctly stepped to accomodate your ACT clutch. Step spec for a flywheel should be .608-.613

RRE's Clutch And Flywheel Tech Info

Also, it only takes a machine shop an hour max to step a flywheel correctly. I dropped mine off at noon one day and picked it up at 2pm and it cost me $60. Pretty no hassle if you ask me. Even if, you can at least ask the machinist to check your step for free.

[rrussell]

IMO I would use the stock flywheel if there is enough material left. I have done two of them one for my car and another for a friend and both work great. Both ACT2600lb setups.

Just make sure the machinist does the step correctly.

[project_tsi]

I would not use the stock flywheel if you plan on making good hp. It has been known for them to come apart and destroy the trans, and many other things, etc.

I run an ACT XACT Chromoly flywheel and I love it, much better than the Fidanza piece of crap.

[kittay]

Don't the ACT flywheels have issues with exploding?
I've been running the fidanza for a year now. Haven't had any issues.

[rrussell]

Originally Posted by project_tsi

I would not use the stock flywheel if you plan on making good hp. It has been known for them to come apart and destroy the trans, and many other things, etc.

I run an ACT XACT Chromoly flywheel and I love it, much better than the Fidanza piece of crap.

At whp would you consider needing a after market flywheel.

The reason I'm asking. I'm up grading my FP sleeper 16g to a FP3065 and ditching the SMIC for a FMIC and still plan on running bottle. Now I'm a little worried.

[kittay]

I wouldn't run the stock one.
Make sure you find one that meets SFI Spec 1.3, 1.4, or 1.5.
You're actually supposed to be running a flywheel sheild as well if you're faster then 11.99

BTW, do you ever come to Firebird to race?

[rrussell]

Originally Posted by kittay

I wouldn't run the stock one.
Make sure you find one that meets SFI Spec 1.3, 1.4, or 1.5.
You're actually supposed to be running a flywheel sheild as well if you're faster then 11.99

BTW, do you ever come to Firebird to race?

Well it looks like I will be changing the flywheel to a ACT or Fidanza.

I'm planning on making a trip down there this season. I run mainly at SRP, Yakima and Woodburn.

[kittay]

Originally Posted by rrussell

Well it looks like I will be changing the flywheel to a ACT or Fidanza.

I'm planning on making a trip down there this season. I run mainly at SRP, Yakima and Woodburn.

Awesome. If you do, look for me and say hi
I've seen pics of your car on IMS and would love to see it in person. Nice looking car!

[rrussell]

Originally Posted by kittay

Awesome. If you do, look for me and say hi
I've seen pics of your car on IMS and would love to see it in person. Nice looking car!

Thanks for the kind words. I will let you know when I come down there.

How much did your fidanza flywheel cost you?

Also do you know what the weight is?

[kittay]

New they're around 225$. 19lbs is stock and the Fidanza is 8 lbs.
I picked mine up for 400$ (for a new ACT2600 and the Fidanza flywheel) from a guy over in Seattle.

[DGajre777]

I have an ACT flywheel with ACT's 2100PP and their 6 puck sprung hub disc. Last time I checked, ACT doesn't make prolite flywheels for our cars, only streetlites.

As for the step, ACT flywheels come stepped for use with ACT's PP and their disc BUT I wouldn't trust their machining skills. Take it to a shop and have the step measured, if it is not right, get it resurfaced. I took mine to 2 different shops and it was in spec at 0.610" (from what I remember), so I didn't have to machine mine to the proper step.

As for a review - I love the ACT flywheel!

[rrussell]

One more question...

When you went from a stock flywheel to a after market light weight flywheel did you notice that it was easier to shift at higher rpm?

[rockit11]

this should be linked to the FAQ, a lot of useful info and common questions answered.

[jdm_hero]

After some homework on the subject I ordered a fidanza 3.2 clutch kit for my 1g tsi awd and was wondering wether to go with a stock flywheel or upgrade to a lightened one. Which one, a fidanza aluminum or the billet?
This is my DD that will never see 300+ lbs of torque in case you all needed that info to judge by. Thank you

[bowtiebuba350]

Id go with the stock better dirivability depending on the clutch you use and helps with launching as weel, light weight fly wheels suck on the street, I had a supra with a 11 lbs flywheel with a act 6 puck clutch it was no fun just driving to work and back.