I have an 05 Mr with all the bolt on mods and cams. Today my clutch started to sleep and now im looking at doing an ACT clutch but my question is should or do i need to change to the lightend flywheel? It is a daily drive and just put 357 on the ground and im only looking to make about 400 whp with it. Do i need the flywheel will it be something that u will actually feel. I used to have an 1g awd laser and it had an act 2600lb clutch and lightened flywheel and I really could feel a difference. So if im doing the clutch should i do a flywheel and if so which one?


Thanks Guys

 

no....stick with stock

 

Stock

 

The stock flywheel is pretty light to begin with. The ACT Street Light is about the same weight as stock but has weight removed from the center of the flywheel so it feels considerably lighter than stock. If you want to feel more of a difference go with the Pro Light,I think it weighs 10 lbs. Either way you will feel a difference. Do you need it? No,but the car will accelerate faster with it because the crank has less weight to turn.

 

i would you are there already and it helps to motor

 

I'm in a similar boat, my clutch has been slipping lately. I was thinking about the ACT clutch and flywheel combo too, but I wasn't sure how it would handle the occasional light launch from a stop light. Keep in mind that I DO NOT track my car. My car is reflashed w/ launch control set at 5k rpm, but because of the stock clutch I have never done a full 5k launch. I don't see myself going for over 400 awhp (anytime soon atleast), is the ACT clutch/flywheel combo right for me?

 

hi guys..
a few months ago I read a thread here talking about the ACT flywheel will turn your service engine light on..
I just had new ACT clutch and flywheel installed.. and experienced the same thing..
is there any way to turn it off?

Thanks!

 

stay with the stock one! if its not a track or slalom car you don`t need the (little-) faster spoolup.

 

Do you need one? No. I think it's sure as heck nice to have one! I put one in my previous car and it made rev matching the downshifts so much nicer.... I plan on putting one in the Evo whenever I have to do the clutch. Might as well!

 

I am probably putting down around 350whp. I recently put in a gruppe-s helix lightened flywheel and an ACT 6-puck clutch. It was a little stiff at first, but after I broke it in, it feels great. I would recommend it just because you are already there.

 

+1 1/2 You might as well while you are in there. No need to resurface the stocker.

 

You dont need one but its nice to have personally i know that it does provide a benefit, but if you dont go ahead with it i have 2 stock flywheels you canhave resurfaced before doing the clutch and have them ready to go in when your doing it

 

with a lighter flywheel keep in mind it will be harder to launch the car

 

you said you have an 05 mr that lays down 357hp.
do you really need 357hp?
no, but it's nice to have.
do you really need an mr?
no, but you wanted it.
do i really need a 9.5lb flywheel?
no, but ~8hp on the dyno is still 8hp.

 

A light flywheel makes it harder to get moving from a standstill since a light flywheel does not have the same inertia as a stock one. Just one of the reasons you hear race cars use high rev's and hold them longer while engaging the clutch. The type of clutch material used also influences this as higher performance materials tend to grab all at once rather than slowly tighten their grip as you are accustomed to in a street car. A similar situation occuers while shifting gears too. The rev's drop quicker tending to make for "jerkier" shifting. On a race vehicle you can gain HP and quicker shifting though you will destroy a stock box shifting that quick repeatedly.

IMO, it sounds like a good idea but in practice on a street driven car it's not such a good idea.