Snufelupogus

iTrader: (2)

I was just at a rx7 shop picking up a water pump gasket and asked the guy if he could order me a lightweight steel flywheel for my car and how much it would be. First off he told me that they were like $500-600CDN but that I shouldnt waist my money on one because they dont do anything.

It makes sense to me that with a lighter flywheel the engine would rev faster due to less weight that has to be spun and such, and also I heard that a lighter flywheel will transfer more power to the wheels and less will be loss at the flywheel itself.

Am I being miss-informed by you guys saying that they help the engine rev faster and help with top end or is this guy a crack pot?

Help me out here guys, I have to go back tomorrow to pick something up and want to know if I should order one or not...
Thanks

vosko

iTrader: (4)

lightweight flywheels are good but pretty expensive you can spend your money better elsewhere.....

Grimlock

sorry dude.....it will be money well spent!!!

i have the 12lb aluminum f/w and in my opinion its the best mod i have done to my TII.

i would imagine that it will benifit the n/a even more!

if you have the seires 4 you should get one as they are 28 lbs i believe. well i know the TII is that much.

series 5 has a 20 lbs one, but i would still get one anyways!

lighter f/w = faster accelaration

RotaryMiata

Bottom line: you will DEFINATELY notice a difference. Unless you just jumped out of a torque-monster V8 (you do take a hit to your low-end torque), you'll probably fall in love all over again.

Whether it's worth the money or not.... It's a subjective question. I, for one, believe it is.

If your wallet is screaming, you'd do better starting off with the basics (intake, exhaust, ele. fan).

My .02

Mark S

iTrader: (1)

Yeah. I agree with grimlock and rotary miata. I'm very happy with my 12 pound flywheel. It's definitly pricey, but its also one of the best mods I've done. I bought an aluminum flywheel from mazdatrix about 5 years ago Along with a street strip clutch and PP) and had it on my 87 se. It was great, engine felt better, shifted cleaner/quicker, etc. When I got my GTUs, i swapped it on there and it made an even bigger difference. Less rotating weight on the S-5 engines, I guess.

If I were you, though, I would stick with the aluminum flywheel. The lightened steel ones arent that much lighter for the money than stock.

Liquid Anarchy

iTrader: (2)

This may sound like an EXTREMELY stupid question but... would it be possible ( with correct drilling, etc ) to remove material from a flywheel ( keeping balance in mind ) and make your own "lightweight" flywheel? I, being a DIY'er, don't think it would be that difficult. But what do I know...

RotaryMiata

NO!!!!!! You'd NEVER get the weight exactly correct!!! Even if you did the best job you could possibly do by hand, the thing would shake itself apart!

Only a machine can be so precise...


DON'T DO IT!!!

rx7-rage

i believe its worth the money also...........i got one, and i love it. i got the 9.5# one accelration is awesome now

Liquid Anarchy

iTrader: (2)

What'd you think I ment? I was being a little crude with the "drilling" thing. I'm a DIY'er of many tools. A CNC machine and CAD software are WONDERFUL things

Jerk_Racer

I've had the 9.5# flywheely for about half a year now. I love it. You will notice it with acceleration and downshifting. It's very streetable, contrary to those that don't one have will say. But it's not for everybody. I like autoX'ing and playing on the twisties. This is where it really shines. 1/4 mile might be affected as far as launching is concerned. I don't know. Mine feels great though. I had to change out my clutch so I figured I might as well do it while I had the tranny off. I've never regretted it.

jerk_racer@hotmail.com

crasher2

Yes you really dont want to try to make one on your own, I have seen the affects on the legs when they come apart, was not the easy thing to see. And yes i would get on, go about 12lbs and dont forget the counter weight too.