http://www.my350z.com/forum/showthread.php?t=344837- The only complaint this guy says is that they are little "noisier" then steel flywheels. And he also notes that its possible to f**k up if u replace the inside disk. so what? resurface it if you wanted to.i read on other sites than d-series that a chromoly flywheel is better.....
http://www.my350z.com/forum/showthread.php?t=344837
http://www.highaltitudeimports.com/showthread.php?t=36916
http://www.honda-tech.com/zerothread?id=243312
http://www.prostreetonline.com/s/drivetrain_exedy-clutch-and-flywheel.asp
http://forum.miata.net/vb/showthread.php?t=18417
This was really the only negative comments i could find about the aluminum flywheel on that site. in fact, there are at LEAST 10 other people on there saying +1 for Aluminum. But to address this guy, he's like you and made a remark about the flywheel assuming that the ENTIRE wheel is Aluminum including the mating surface. he's incorrect. if you did some real research you would have been able to call that out.You can resurface chromoly too. It's just more of a pain. From an engineering perspective, chromoly is the far better choice. It's stronger, can have a better strength to weight ratio (depending on the grade and how its manufactured), and it will last for more cycles than an aluminum flywheel. It'll probably be pricier though.
Again, another misinformed person confusing your mind. He says that aluminum is the "backbone?" Thats not the case. there is just as much steel as there is aluminum, so the steel naturally would be the backbone. Because it is naturally stronger. How can the aluminum cause the mating surface to slip when the mating surface is a stronger metal (steel)???One thing about aluminum is that it contorts its shape under heat. Basically when it gets hot it expands more than steel. Also aluminum is weaker than steel. Some aluminum flywheels have lost their flat surface under heat expansion. Yes they have steel inserts but the aluminum is the backbone to the steel insert. So if the aluminum decides to contort the insert will also contort. This could leave you with a not completely flat surface and you would loose surface area contact for the clutch disc thus clutch slipage. This is one reason I have decided to go with chromoly steel. It is rigid.
This guys negative points are all invalid. He says the same crap about them getting too hot, but admits that the lightweight steel can have the same affects (probably because the mating surfaces are the same damn thing)I haven't used any of the aftermarket Miata flywheels, but I can give you some general information.
Although this can vary with design, aluminum flywheels are more likely to be damaged by heat than a standard weight iron or steel flywheel. However, extremely light iron or steel flywheels can have the same limitation.
The lower weight/mass of an aluminum flywheel can cause the engine to idle rougher. And for the same reasons, the car will be more likely to stall when starting from a stop.
If not made correctly, the starter ring gear on an aluminum flywheel is more likely to become loose.
The mounting bolts on some aluminum flywheels tend to loosen.(Torque the flywheel cold and use locktite)
Your car will accelerate noticeably faster(especially in the lower gears) with an aluminum flywheel.
kind of contradicted yourself there.ummmm.....ok
some people need to grow up??^^
any response to that? Did you know ANY of this before you decided that an aluminum flywheel was no good?because the aluminum one is made my Fidanza. Fidanza makes REAL parts, for REAL cars. They do real Research & Development. Not just manufacturing.
Do you have any idea what those screws are there for? You're gonna love this. Those screws hold the icredibly strong 1045 steel clutch mating surface onto the 6061 T6 aluminum outer ring. That 6061 T6 aluminum ring is fantastic for strength, heat dissipation and of course reduction in weight. And those little screws you are worried about are military grade aerospace fasteners. Another great thing about the screws is that it makes the friction plates 100% replaceable.
i am trying to help. im not really trying to be too nice about it. but i hate when people rely solely on online forums for information. Chaos really doesn't want to admit that he doesn't know what he's talking about. Thats why i'm being so persistent. Its fine to not know EVERYTHING. no one does. But don't act like you made an educated decision when you have no facts to back it up, just some online forum idiot's opinions.I can't wait for a response on this its hilarious. and you should be thanking kyle for trying to help you out so much.
I have a friend that is the same way he reads one thing on the internet and thinks that he now knows everything about tunning. its really frustrating trying to get him to actually research and realize he is not correct about his decisions. but this isnt my thread and i dont want to thread jack it any more so i will sit patiently waiting for chaos's response.i am trying to help. im not really trying to be too nice about it. but i hate when people rely solely on online forums for information. Chaos really doesn't want to admit that he doesn't know what he's talking about. Thats why i'm being so persistent. Its fine to not know EVERYTHING. no one does. But don't act like you made an educated decision when you have no facts to back it up, just some online forum idiot's opinions.
not necessarily, thats a reason why companies like that sell their parts so cheap, they may be made the same way as other more known companies, they just don't put much, if any R&D into their products.no they didnt lol.....^^^
its just on personal perference i guess.....i mean sure fidanza tests their s**t but im sure gripforce and other companys do testing as well....their just not going to sale it without testing to make sure it works first
yes they did. i actually read those. why dont you go back and read the links you gave me.no they didnt lol.....^^^
i can almost 100% guarantee you that GripForce doesn't test s**t.its just on personal perference i guess.....i mean sure fidanza tests their s**t but im sure gripforce and other companys do testing as well....their just not going to sale it without testing to make sure it works first
my point is that strength is not an issue at all with a flywheel. the only thing you really need to upgrade is for the weight. the strength is the same. thats like saying that you want to get new seats that have stainless steel instead of fabric upholstery because fabric can rip. it just doesnt make sense. Its like saying that cast pistons are better then forged pistons.lol....i really dont care what you guys say.....i still say that a chromoly is better than aluminum......sure aluminum can dispate heat better.....but it still isnt as stronger as the chromoly.....the only difference is that the aluminum has a replaceable disc while the chromoly has to be resurfaced though its hard to find a machine shop that will actually resurface it......ive done enough research to say that chromoly is a better choice.....
Steel > Aluminum
you are slightly incorrect about one thing, and this is another good point that I am making. They DON'T cost more. you were right about everything else thoughThey cost more b/c the steel ones are cheaper to produce. And you can make aluminum alloys that are way stronger than steel.