On my F23, will a lightened flywheel make a reasonable difference? I have a stage 2 clutch that i am about to install, tryin to decide if i want stick with oem or get the lightened flywheel to out of the way now.
Also any disadvantage to Lightened Flywheels? I have read something about noise/ vibration issues.
Lastly will i have to retune my ECU again after the install of lightened flywheel?
thanks eveyrone for any input!

 

no re-tune, everything else is subjective, drive a car with a lightened flywheel and make your own decision

 

I loved my Toda flywheel when I had it on my 99 Si...

 

i had a vibration issue while the clutch was seating. 98% gone now. maybe a hint more vibration than the OE GSR wheel. the wheel i'm now using? a 7.5lb fidanza, with organic or kevlar it's great. i would hate to see a puc copper/iron disc on one. that would literally be an on/off switch...as in worse than they already are.

 

im getting ready to put an action 2ms in my tranny with a 8lb fidanza flywheel...haha i think it should be fun...

 

so not every lightened flywheel has vibration/noise issues? I am looking at an ACT 9.9lbs i believe, anyone with experience iwth the brand? I have heard their clutchs are great. I wish i had buddys who had a lightened flywheel setup so i could drive one. hehe.

 

i've driven 2 competition clutch chromoly lightweight flywheels, and an ACT streetlite, and neither had any noticable vibration that i would attribute to the flywheel and not the engine with stiff mounts. matter of fact the streetlite i drove was on a stock prelude with stock mounts, and it was just like butter. i also drove an Aasco aluminum flywheel on a B20A5 and there was no excess vibration

 

good info thankyou!

 

gotta one last question! will the XACT streetlite mate up with any clutch/pressure plate combo? As long as they are for my vehicle everything should mate up or am i wrong? I have ecutchmasters stage 2 w/ 2300LB pressure plate.

 

Edit: didnt mean to quote you. Lol

I have a Competition Clutch 8 lb flywheel with an exedy stage 1 racing clutch and I have no complaints or issues.

 

Sorry to bring this one back a bit, but what reasonable upgrade in power can I expect from getting a lightweight flywheel?

 

None. Lightweight flywheels will not cause your engine to produce any more horsepower. So to answer your question, you will not increase the horsepower of your engine any.

 

I did some extra research after posting and it appears it can just make the engine a bit more responsive, and allow it to drop revs quicker etc.. but then I have to ask if it makes sense investing in a lightweight flywheel for an automatic car seeing as I have no real control over when the car up and downshifts....

what would be a reason to spend the money on it for an auto car?
thanks

 

its the same concept as doin a carbon fiber hood, its just another way to lighten up your vehicle. I went from like 22 pounds stock flywheel to 9 pounds, not much difference, another benefit is it doesnt take as much for your crankshaft to turn the flywheel. automatic or manual same results.

 

Well i'm not overly concerned about the weight reduction in the sense of making the car lighter.. when I am 6 foot 4 and 260lbs, its hard to quibble about 10 lbs on a flywheel..
Im more concerned with how it will change the throttle response and the gearing of the car.. for this do you think it will be worth it?

 

How could it ever do anything for gearing? Answer is it won't. Its going to allow the car to build and drop in RPM faster. How much more? I can't tell you. Being that you have an automatic, I wouldn't have the first clue. I've NEVER attempted to modify a Honda automatic nor would I ever reccomend it. I am sure it would make somewhat of a difference, but it would most likely be minimal at best.

 

My 91 civic had a stage 1 clutch and a lightweight flywheel. I had no vibration issues. The engine would rev up much faster. But I did lose torque. And that's exactly what is supposed to happen!

 

its an automatic, it doesn't have a flywheel. it has a flexplate and they weigh maybe 2 pounds MAX

learn your car first please

 

In my experience with a 9lb flywheel in my Accord, I'd say the vibrations and detrimental effects on driveability make it NOT worth it. I might be willing to try a ~14lb flywheel, but IMO less than ~12lbs is a bad choice.

 

Im sorry if I didnt state myself clearly, but I didnt mean it would adjust the transmission itself.. was more asking if it would adjust the current shift points of the transmission.. eg. when floored the trans gears up around 6100rpm, would that be any different...

and if I am wrong about my car not having a flywheel, i must apologize but im very new to this and trying to "learn the ropes" about upgrading..

thanks again

 

i don't understand this

i have 85A mounts, an 8lb lighter then stock rotating assembly, no PS, no AC, no balance shafts, and there is seriously no excess amount of vibrations then as with the stock flywheel over the 8lb fidanza i have now. and drivability did not change one bit

i seriously don't understand where you guys are coming from

 

I don't understand this.

"Excess" is a relative term, but have you ever driven a 'nice' car? They don't vibrate and rattle like a 20 year old chassis with an engine swap does.

Furthermore, an H22 in a light chassis might not require any real effort to take off from a stop, but in our 3100lb+ cars, it takes a bit of pedal play to get things going smoothly with a flywheel that light.

 

i'm saying purely from a flywheel point of view. on my car if it was going to rattle more it would, since i have all the extras taken off and stiffer (85A and 65A) mounts.

but from my stock flywheel stock clutch to a lighter kevlar clutch and 8lb Fidanza AL flywheel i didn't notice any excess vibrations. i can't imagine that with power steering, air conditioning, balance shafts, rubber OEM mounts, and a heavier car, that you really notice the vibration

 

i am going about 800 miles + raced at the track on my eclutchmaster stage2 clutch with the 9 lb flywheel setup and still no vibration issues with all accessories(PS, A/C, ETC) on stock motor mounts.

 

I Drove a Friends 99 si, I/H/E, stg 3 clutch, 8.8lb flywheel

I had a blast driving it.... No complaints!!!

Im not sure if i would put one in my car but it was fun to drive!!!