Light weight flywheel = less torque?

[BaysideBlue]

is this a good flywheel to get?

"Exedy - Single Sports - Light Flywheel

Low mass is a good thing when it comes to high-performance flywheels, which is why the lightweight aluminum Exedy flywheel can help your sporty street ride or weekend racer develop more drive-wheel power. A flywheel is basically an energy storage device. When the factory designs your flywheel, they take smoothness and other drivability factors into account and end up creating a heavier-than-necessary flywheel.

An Exedy flywheel still gives you great drivability, but the Exedy flywheel is made of lighter materials that take less engine power to accelerate. Your engine doesn't make more power and torque, but more power and torque gets to the wheels because your Exedy flywheel isn't soaking up as much of it as your stock flywheel did. Make sense?

Each Exedy flywheel is custom-machined from proprietary alloy metals and specially tuned to the vehicle upon which it is intended to be mounted. That way, your Exedy flywheel always gives you smooth shifting, scintillating acceleration, and steady idling characteristics that you'll love if you're a performance-minded driver. More importantly, you get back a handful of horsepower with an Exedy flywheel, which is what your goal should be with every modification you make"

Nengun

Can anyone answer my above question? or any other light flywheel you would recommend?

[sh@un]

What are you going to use your car for predominantly?

A lightened flywheel will improve throttle response/willingness of the engine to rev and engine braking- good for performance driving.

But on the flip-side, it will make it less pleasant in traffic- you'll need to change gear quicker as mentioned, plus the car will be jerkier when you get on and off the throttle at low revs as well as accentuating driveline snatch...exactly what you don't want in a traffic jam.

Just like most things in life, you need to choose the amount of compromise ur willing to accept.

[BaysideBlue]

What are you going to use your car for predominantly?

A lightened flywheel will improve throttle response/willingness of the engine to rev and engine braking- good for performance driving.

But on the flip-side, it will make it less pleasant in traffic- you'll need to change gear quicker as mentioned, plus the car will be jerkier when you get on and off the throttle at low revs as well as accentuating driveline snatch...exactly what you don't want in a traffic jam.

Just like most things in life, you need to choose the amount of compromise ur willing to accept.

yeah im willing to accept that compromise. its all part of the skyline experience isnt it? if im afraid of the unpleasantness in a traffic jam i would be driving an automatic wouldnt I?

now just need someone to advice me on which lightflywheel to get

[sh@un]

Just don't get a 700hp Exedy ceramic twin like I had on my GT-R: nightmare in traffic

The later model copper-mix clutches are sooooo nice in traffic

[Yawn]

Just clarifying something, lightweight flywheels actually improve deceleration contrary to what someone mentioned earlier. Because of its weight, it has less inertia compared to a heavier one which will continue spinning for longer.

[rev210]

to summarise the thread.

An aftermarket flywheel is;

* Better for accelleration -------- in every gear.

* Better for the drags ------- If you can't change gears properly a heavy stock flywheel is more forgiving but, don't worry you will run slower times thanks to your heavy flywheel and the fact you can't change gears properly.

* Better for decelleration

* Better for the circuit/track use

* Puts less stress on the gearbox and makes matching rpm for shifts easier than factory.

A well designed aftermarket flywheel and clutch setup (they go together) for the road will not;

* Effect your fuel ecconomy

* Cause drivetrain vibrations or noise

* Change hill starting difficulty

Some more of my 2c;

Select a pressure plate with sufficient clamping force not one that is stupidly sprung.For example a 230rwkw gtst will get away with a factory level of pressure/clamping when matched to a good friction plate with metal/ceramic composition. The heat capabillity of the material is just like brake pads and plays out in use pretty much the same way.

Chrome molly flywheels have advantages in strength, wear and heat loads over factory units when using more aggessive friction plate materials, weight aside that is a good enough reason to look at them.

[(B1) MR_fanny]

Can anyone answer my above question? or any other light flywheel you would recommend?

like i said, ive got the exedy flywheel with exedy cushion button and am very happy with it. i looked at other flywheels like you are now and chose the exedy one cause it was around the 6kg mark as i didnt want to go too light for daily driving and because i could get it localy and not have to wait for it from japan like the cusco one i was looking at. UAS offers chromoly flywheels at the light (6kg?) and super light (4.5kg?). thats another option for ya.

[BaysideBlue]

like i said, ive got the exedy flywheel with exedy cushion button and am very happy with it. i looked at other flywheels like you are now and chose the exedy one cause it was around the 6kg mark as i didnt want to go too light for daily driving and because i could get it localy and not have to wait for it from japan like the cusco one i was looking at. UAS offers chromoly flywheels at the light (6kg?) and super light (4.5kg?). thats another option for ya.

I found an exedy flywheel on Nengun http://www.nengun.com/exedy/single-sports-light-flywheel. Is this the one you are talking about?

It doesnt state the exact weight. Not sure if its chromoly either only says "lightweight aluminium" or "proprietary metal alloy" what does that mean?

Edited May 27, 2007 by BaysideBlue

[(B1) MR_fanny]

yeah...info differs from nengun site and the exedy aus site and i was confused too about wether it was alu or chromoly and weight but from the research and info that i recieved theres only the one model and its forged chromoly and weighs just over 6kg. sulivan_a had a group buy on these and says the same i think. i got the flywheel for about $500 trade here through the mech, should probs ask your mech how much he can get it for.

[BaysideBlue]

yeah...info differs from nengun site and the exedy aus site and i was confused too about wether it was alu or chromoly and weight but from the research and info that i recieved theres only the one model and its forged chromoly and weighs just over 6kg. sulivan_a had a group buy on these and says the same i think. i got the flywheel for about $500 trade here through the mech, should probs ask your mech how much he can get it for.

yeah thats about right, a little under $500 delivered is Nengun's price.

I guess the "proprietary metal alloy" is refering to forged chromoly then. in that case it should be heaps stronger than the factory one.