gravana1 said:Fidanza Flywheels are shipping today. All pre-orders will be processed and shipped ASAP.
Thank you all for your patience!
Are you sure it's lightened? That was what I was getting at. Typically, you buy a flywheel to match your performance goals. For example, in the Olds 455 Big Block that I have in my 81 TransAm, you would not want a lightened flywheel. The heavier the flywheel, the more torque the motor produces. The lighter the flywheel, the more top-end horsepower you can get.OBXSOL said:well you aren't really "gaining" any HP, but your engine is not working as hard to get the HP to the wheels.
with the lightened flywheel the engine will rev and and come down much faster.
there is some debate as to the benefits of a lightend flywheel, but i always thought is was a cool idea, although i have no first hand experience with one.
someone with more experience can probably explain much more than i.
Here is the link to the product:bspate said:I definitely think we need a little more info here about this flywheel.
So much for "selling the product".....
- bspate -
I wouldn't be suprised if the stock flywheel weighed anywheres from 16lbs - 23lbs.Fidanza Billet Flywheel - NOW SHIPPING!!!
A Fidanza flywheel can mate with any type of clutch material, including organic, kevlar, ceramic, metallic and sintered iron. They attach the friction surface with military grade aerospace fasteners. The ring gears are made from 1050 steel and are heat treated for durability. The gears are heated then pressed on and secured with grade 8 button screws. Fidanza was the first to use a stepped dowel system in most of their flywheel applications. This doweling method ensures that once the pressure plate is installed the dowels cannot be removed because they become locked into place. No chromemoly can compete with the awesome serviceability, strength and superior design of Fidanza's aluminum flywheels. If there was a better material out there, Fidanza would be using it.
This product normally ships in 2-3 business days. Estimated weight is 9.5-lbs. Fits Manual Transmission only!
i didn't mean to say that you won't be able to see a measurable difference in HP on a dyno at the wheels. just meant that if you were strictly looking at engine HP, there would be no difference, i guess.82-T/A said:Are you sure it's lightened? That was what I was getting at. Typically, you buy a flywheel to match your performance goals. For example, in the Olds 455 Big Block that I have in my 81 TransAm, you would not want a lightened flywheel. The heavier the flywheel, the more torque the motor produces. The lighter the flywheel, the more top-end horsepower you can get.
The flywheel WILL actually give or take horsepower based on specific RPMs. On weighed flywheels, you can actually increase or decrese torque / power at specific rpms by moving it further down the radius. Not really an option on neutrally balanced flywheels, but by changing the weight of the flywheel you can improve top-end, or improve low-end.
I was just curious specifically where the gained power would be seen (or lost).
Well, remember, the heavier the flywheel, the more low-end torque it helps produce. The lighter the flywheel, the quicker the motor builds it's RPMs.Adrenaline said:I've been doing some major research on this and from what I've read, 1st and 2nd gears will show a substancial improvement. In one of the articles I read where the stock flywheel was 25lbs with a 2.5L engine, in first gear it was equivalent to having 225lbs less in the car, nearly 80lbs in 2nd gear. It all depends on the gear ratios of course, but during a launch there should be noticeable improvement.
But, I don't think so. Here's a reasonable quote from one of the many vendors selling lightened flywheels:82-T/A said:Well, remember, the heavier the flywheel, the more low-end torque it helps produce.
I think that is the real story.How does a lightweight flywheel add horsepower?
Adding a lightweight flywheel does not add any hp to the engine (it can’t, as any engine in any given state will produce a given hp based on the temperature and the air density).
What adding a light flywheel does to your drivetrain is to lighten the overall reciprocating mass attached to the end of the engine’s crank, thus allowing the engine to rev faster thus accelerate faster.
js_euler said:It's like reducing the weight of the car in a very leveraged way (pun intended). So your power/weight goes positive, even though your hp and torque remain unchanged. Same effect as a lightened driveshaft, saving that rotating weight (mass).
brentil said:Thanks to werks we know the stock flywheel is 21 lbs.
I was watching an episode of Sports Car Revolution in which they were building up an Acura RSX-S car. Moving to a Fidanza flywheel they freed up ~12HP at the top end. This was after some other mods first though like cams, intake, exhaust.
Does a cat back exhaust really deliver the goods? The answer is revealed amid controversy we did not expect.
Could a Mugen air box actually make horsepower. You may be surprised.
Would you rip the engine out of a brand new Acura? We do as a part of the quest for more power.
Cam shafts make power when properly applied. Just how to do that in a high revving, high tech v-tech is discussed in detail. 8800 RPM anyone?
If you have a limited slip, does that mean you take a partial fall? We install a Mugen piece in the hope that an LSD will make for a shorter trip around the track.
Clutching at straws, we seek more performance from the Acura with a new pressure plate, clutch disc and a very light flywheel from TODA.