After thinking and re-thinking, I made the decision of going with a Clutchmasters Stage III clutch and the lightened flywheel for my USDM B18C (with I/H/E).

I'm wondering what kind of gains are to be expected from that flywheel?

 

Anyone?

 

you wont see any gains but your revs will be faster..lightened flywheels are

adaM


[Modified by STEALTHMODECOUPE, 9:46 PM 12/18/2002]

 

how do you go about lightening the flywheel?

 

i have a toduh light fly..

good god, revs nicely and rev-matching is quite easier than that stock fly.

 

I have a Clutchmasters 9.5 flywheel and it noticably revs faster. Good mod IMO.

 

if your car is reving faster doesnt that mean that it is getting to speed faster. like if it takes your car 3 seconds w/ a stock flywheel to get to 40mph at 7k revs in first gear.... then if you lightened the flywheel so it only takes 2 seconds to get to 7k rpms, then are you going 40 mph in 2 seconds? if thats true then it seems like very good mod.

 

Bingo!

 

You either take your stock flywheel to a machine shop and they shave it to save weight.

Or you do it the proper way, buying an aftermarket one, which is not only usually half the weight of a stock one, but it also stronger.

 

removing rotational weight (crank, flywheels, tranny parts, axles or wheels) is equivalent to removing 7 lbs stationary weight.

 

getting a good clutch and flywheel combo is a necessary mod. the lighter the flywheel the faster the revving, but the downfall is if u get a flywheel too light, when you drop it into heutral the engine might die because the revs falls so much faster. it happen to my friends car he's got a 9 lb flywheel i think act extreme, and after throwing into neutral it dies out occasionally, its happen twice with me inside the car and a couple other times. but thats my reasoning. no gains should be expected but better dirvability and the new clutch should grab a lot better than the stock.


[Modified by junb16, 12:56 AM 12/19/2002]

 

I had that combo in my crx......personally the best mods I mods I did to it, IMO. It lived the whole car up, revved faster, and I even notcied more pull up top at highway speeds.

 

if ur into daily driving id reccomend an 11lb fly wheel so u can maintain driveability and avoid things such as stalls (mentioned above) that come with extremely light flywheels

 

Seems like I'm doing the right thing here.

One thing I don't know is the weight of the Clutchmasters flywheel?

 

I have a 9.1 lb Exedy chromoly fly and my car never had any stalling issues at all--until I dyno-tuned my camgears. While this is unrelated, I think a stock flywheel might have idled smoother after I messed w/ OBD2 so badly.

Regardless, awesome mod. The car screams down the dragstrip and is just an overall blast to row through the gears. It dropped my et's by a tenth, but it did increase overall driving enjoyment. Well worth the money.

Buy one that is purpose-built rather than lightening the stocker. While odds are nothing will happen to the lightened stocker, there's just something unsettling about a flywheel shattering at 8000 rpms.

 

dont forget:

a lightened flywheel will wreak havoc on you if your not an experienced driver. my friends shop made 4 for his friends (us). and 3 of my friends were not experienced and they were so unable to keep it smooth, that they had to get it resurfaced/replaced in about 3 months.

 

What are the signs that a flywheel needs resurfacing? I just had my Exedy flywheel installed about three months ago, and now whenever I rev, it sounds very noisy. Do lightened flywheels add a noise factor anymore than the O.E. flywheel? The noise seems to be coming from the general clutch/flywheel direction. It might also be my valves (need valve adjustment).

 

i did alittle research on flywheels a few moths ago, i havnt swaped in a b series yet though so i diidnt bother to actually buy one. from what ive seen the comptech flywheel is the best, it only weighs 7.5lbs its aluminum, but the friction surface is steel and it replacable. ive never heard of stalling though, i have problems stalling my d series sometimes (stock flywheel)when its in neural but i just tightened the trottle up alittle and raised the idle up by a few hundred rpm and it hasnt happened since. its posible you friends idle is too low and the engine just dies when it hit that low of an rpm after just being reved up. worth a shot.

 

i wouldnt go to light on the flywheel..id stay above 9lbs..

adaM

 

So how much does the Centerforce weigh? Their website doesn't say...

For B-series trannies of course... it seems like they only have one available. Well for B18C at least.

 

My old motor had lightened flywheel, blade cut and drilled crank, single groove race pulley and it would rev like mad. i plan on doing similar stuff to the new motor but going further with the weight loss. By decreasing rotational weight and parasitic drag you create more usable crank HP.

 

I have a 7.5lb flywheel...the car has NEVER stalled.

 

One other bad point is, revs also drop alot quicker. So say you want to race someone and you want to keep your car in the 5000+ RPM Vtec zone, It will be alot harder, as the revs drop alot quicker than with a standard flywheel. To combat this, you'll need to do quicker gear changes, so maybe a short shifter should be introduced aswel. Just a thought.

 

also if you dont get the clutch just right in traffic you will be stalling it. It makes your cheeks turn all red and your girlfriend laugh but in the nd its worth the performance.

 

I've had the CM flywheel on my civic for 6months now and have never had any of the problems about stalling...or even the revs dropping to much.. I mean come on how slow do u shift 5 seconds, please.. anyone can do a shift change in less than a second..and Ihve driven with a LS tranny.. then a gsr tranny.. then a ls tranny I would have to say the flywheel was best on the gsr probably due to the slightly shorter gearing.. but oh I can say nothing negative about a lighter flywheel for thestreet