i dont remember where but i was reading that in certain cases...a lightened flywheel can actually damage your motor...something about if you lighten the flywheel...you need to lighten the entire rotating assembly? ive never heard of anyone having a problem with like a 12 lb flywheel...but just looking to see if there is any truth to this

looking at an act heavy duty with street disc and the streetlite or fidanze wheel on my moderate turbo setup

 

im not an engineer or physisist (however you spell it), but lighting the flywheel doesnt do anything but lighten your powertrain and free up a few more ponies

 

If anything I think it would have the opposite affect. If you think about it, on the power stroke there is some twisting of the crank to try to get everything up to speed. If you have a lighter flywheel there would be less resistance to rotate creating less twisting on the crank and better overall efficiency.

 

your motor will be fine! get the flywheel, you will love it!

 

a lightened flywheel will let your engine rev quicker. it wont damage the engine. its a little harder on the clutch though. you will have to rev it a little higher and slip it a little more to get going from a stop. no big deal really. i bought a toyota 4X4 truck with a very heavy flywheel that the previous owner put on it for rock crawling. killed it off of the line but you could creep up and over logs and steep inclines without stalling.

 

sick..thanks everyone

 

Just get the lightened flywheel you shouldn't have any problems with it.

 

The only time you will have problems is if you shave your existing flywheel. then they can shatter and cause serious damage if not be dangerous to you and your passenger.

The reason why a lightened flywheel does good is because there is less rotational mass meaning that it takes less torque to spin the flywheel as well as it has a smaller rotational inertia. Its the same reason that lighter wheels are a good thing.

so yeah. lightened flywheels are a benefit if they are made that way, so just dont shave your flywheel.

 

the lightened flywheel will be fine. not to step on anyones toes but in my opinion isnt that practical for street use. your rpms rise and fall alot quicker, which for alot of people, leave you stopping shorter or riding the clutch more. so your either wearing out your brakes or clutch quicker. you also have to do alot more rev matching.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slipstreamxk1 &raquo;</TD></TR><TR><TD CLASS="quote">the lightened flywheel will be fine. not to step on anyones toes but in my opinion isnt that practical for street use. your rpms rise and fall alot quicker, which for alot of people, leave you stopping shorter or riding the clutch more. so your either wearing out your brakes or clutch quicker. you also have to do alot more rev matching.

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Don't knock it if you haven't tried it

I ran a ~8lb Fidanza on my near stock B18A Integra and I freaking loved it. I could hardly tell a difference in starting (it's something you get used to within an hour) and the difference in shifting was slight. The quicker acceleration, however, was well worth it.

 

do they work well with turbo cars?

 

well i had a stock gsr and my buddy drove it before and after i put my 8.8lb competion clutch (inline pro) and stage 2 clutch in. His coment was "did you put a new trans in here?" the gears were a hella lot shorter with the flywheel.

I would have to say that it is not made to be on a daily driver that will be used in major traffic area's. I am required to travel through dc with my job and with that type of traffic it is near impossible to not burn your clutch out, with the way the setup with a lightweight flywheel grabs.

My flywheel is steel, find out which is better- the steel or the aluminum

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kaoss_11 &raquo;</TD></TR><TR><TD CLASS="quote">do they work well with turbo cars?</TD></TR></TABLE>

Turbo cars you probably don't want to run a super light one. Something like the ACT Streelite would ge a good weight.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slipstreamxk1 &raquo;</TD></TR><TR><TD CLASS="quote">the lightened flywheel will be fine. not to step on anyones toes but in my opinion isnt that practical for street use. your rpms rise and fall alot quicker, which for alot of people, leave you stopping shorter or riding the clutch more. so your either wearing out your brakes or clutch quicker. you also have to do alot more rev matching.

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i have an act streetlite (12 lb) and love it---- ppl saying the car looses revs too fast is a bit of an over-exageration (at least with this flywheel)...... it makes your car a lot more responsive and i have no complaints

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bc_ef8 &raquo;</TD></TR><TR><TD CLASS="quote">Turbo cars you probably don't want to run a super light one. Something like the ACT Streelite would ge a good weight.</TD></TR></TABLE>

what is your reasoning? I = MR^2 the lower the I, the better off you are.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slipstreamxk1 &raquo;</TD></TR><TR><TD CLASS="quote">your rpms rise and fall alot quicker, which for alot of people, leave you stopping shorter or riding the clutch more. so your either wearing out your brakes or clutch quicker.</TD></TR></TABLE>

RPM's falling quicker really doesn't affect driving assuming you actually know how to drive? If you take longer than 2 seconds to shift gears then yes you'll experience a bit more clutch wear in the long run, but who takes longer than 2 seconds to shift a gear? Regarding RPM's rising, you do understand that the driver controls the gas pedal and thus the rate of acceleration of the engine don't you?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slipstreamxk1 &raquo;</TD></TR><TR><TD CLASS="quote">you also have to do alot more rev matching. </TD></TR></TABLE>

You should be rev matching anyway.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by allmotorjdism &raquo;</TD></TR><TR><TD CLASS="quote">the gears were a hella lot shorter with the flywheel. </TD></TR></TABLE>

I'm not even going to comment on that one.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by allmotorjdism &raquo;</TD></TR><TR><TD CLASS="quote">I would have to say that it is not made to be on a daily driver that will be used in major traffic area's. I am required to travel through dc with my job and with that type of traffic it is near impossible to not burn your clutch out, with the way the setup with a lightweight flywheel grabs.</TD></TR></TABLE>

Once again, learn how to drive properly and this won't be a problem.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by allmotorjdism &raquo;</TD></TR><TR><TD CLASS="quote">My flywheel is steel, find out which is better- the steel or the aluminum</TD></TR></TABLE>

There aren't any real issues with either.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bc_ef8 &raquo;</TD></TR><TR><TD CLASS="quote">Turbo cars you probably don't want to run a super light one. Something like the ACT Streelite would ge a good weight.</TD></TR></TABLE>

I also have to ask the reasoning behind this statement.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bc_ef8 &raquo;</TD></TR><TR><TD CLASS="quote">

Turbo cars you probably don't want to run a super light one. Something like the ACT Streelite would ge a good weight.</TD></TR></TABLE>

dammit. 7.5lb flywheel and 30psi coming.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall &raquo;</TD></TR><TR><TD CLASS="quote">

I also have to ask the reasoning behind this statement.</TD></TR></TABLE>

doesnt this have to do with boost dropping off or something? kinda like how the auto supras are faster stock than the manuals...cause u dont have to like respool after the shift cause you NEVER let off...??

 

if you feel its nessecary to quote somones statment then you should comment on it. Do you even run a lightweight flywheel (8.8lbs) if you have ever felt one that light with a gsr trans then you most deff. would be able to see a differnece.
i would like you sir to comment on my statement so that you will make some sense in this issue.

to you mr. knowitall

 

I've used the ACT Prolite for two years and have had no problems at all.

 

I have the fadanza on my car. It takes a bit to get use to because you have to use a little more gas when moving from a stop. Otherwise its just fine and works so much better.