Lightweight flywheels

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07-20-2007, 06:05 PM
exodus

Lightweight flywheels

not sure where the thread went, but I'm sure there was one...

...think I may have changed my mind about these... I just changed the clutch/pressure plate out on my jetta and found my flywheel was cracked... a 9lbs lightweight one was near $80 cheaper than a new OEM one so, reluctantly I sprung for it...

Acceleration is improved across the board. It's no more difficult to launch than before (of course I was running on a 120k mile clutch before, so this may be relative)... only noticable complaint is a slight (very slight) decrease in torque when cruising in fourth and fifth gear. However, 1-3 definitely feel much much quicker. Rpms drop and rise quicker (engine was pretty quick before, too, though... would probably see better results with a heavier reving engine like the 1.6l)

Should understand that there's a big difference between the two motors though. My jetta has a 2.0l 8v putting out roughly 125-130hp and 140lb-ft of torque... The 1.6l might suffer a severe torque shortage with a lightweight flywheel... but after having driven something other than a honda (which are severely lacking in the torque department) with one... I'd be more willing to try one on my aveo.
07-21-2007, 12:21 AM

I just read an article in HCI magazine about an install of a lightweight flywheel on, lets see, I think it was a 240sx. It sounds like a really good idea if you need to get in there anyway, but it looked like a lot of trouble to tear into there if that's all that needs to be upgraded.

When my clutch wears out, I want to have the mechanic replace everything in there with aftermarket that can reasonably be installed. Flywheel, clutch, short-shift kit...
07-21-2007, 06:17 PM
khan4rtist

good luck finding anyone who makes this stuff for the aveo...
07-21-2007, 08:07 PM
y2dgone

Quote:

Originally Posted by khan4rtist

good luck finding anyone who makes this stuff for the aveo...

At least in mass... the machine shop I used to produce the underdrive pullies said they'd be willing to do a lightweight flywheel
07-21-2007, 08:12 PM
khan4rtist

really? for how much? do you know if any good machince shop will make one?
07-21-2007, 09:09 PM
y2dgone

Quote:

Originally Posted by khan4rtist

really? for how much? do you know if any good machince shop will make one?

Yes really, he said he'd need to get an aveo flywheel in order to look at it, then he can give an estimate. Not every machine shop will be willing to make one, and probably not every machine shop could, but these guys can and are willing, and do good work
07-21-2007, 09:41 PM

Quote:

Originally Posted by y2daniel1981

Quote:

Originally Posted by khan4rtist

really? for how much? do you know if any good machince shop will make one?

Yes really, he said he'd need to get an aveo flywheel in order to look at it, then he can give an estimate. Not every machine shop will be willing to make one, and probably not every machine shop could, but these guys can and are willing, and do good work

are they any good in the AT? or just for MT?
07-21-2007, 11:54 PM
Kinkyllama

I sell clutch kits with a lightweight flywheel, the clutch kits are listed for the F16 and F20 (D16 and D20 as well). The lightweight flywheel works only with the new clutch/presspure plate though.
07-22-2007, 12:09 AM
khan4rtist

awesome, how much?
06-07-2008, 03:54 PM
luv2uallday

Re: Lightweight flywheels

it is a foolish idea to install a lightweight flywheel... They spell disaster for your car and possibly you!!!! one owner had one put into his car it disintegrated while he was driving tore half his bell housing off the case punctured the hood in 3 places destroyed the radiator and pieces ripped through the passenger cabin like bullets...

The performance gains are not worth the losses.. I seen the damage a lightweight flywheel can do and if you did you would think twice about it.... and to the one who is gonna have a machine shop fabricate you one... you are making a big mistake... if those guys take too much metal off at the wrong area what i described above will happen to you.. the shops that refuse to do it are the smart ones cause of what can happen.... the flywheel is the mating part that takes the most torque and the most stress in combination with alot of heat what sense does it make to weaken its integrity? think about it. good luck to you all
06-07-2008, 04:18 PM
khan4rtist

Re: Lightweight flywheels

hmm ive seen one on daftart.com that is made by fidanza.....but i might get a custom one made by clutch masters since theyre based in Rialto, Ca which happens to be a five minute walk for me, ima start looking around...
06-08-2008, 03:00 AM
AVE0SAM

Re: Lightweight flywheels

Quote:

Originally Posted by luv2uallday

it is a foolish idea to install a lightweight flywheel... They spell disaster for your car and possibly you!!!! one owner had one put into his car it disintegrated while he was driving tore half his bell housing off the case punctured the hood in 3 places destroyed the radiator and pieces ripped through the passenger cabin like bullets...

The performance gains are not worth the losses.. I seen the damage a lightweight flywheel can do and if you did you would think twice about it.... and to the one who is gonna have a machine shop fabricate you one... you are making a big mistake... if those guys take too much metal off at the wrong area what i described above will happen to you.. the shops that refuse to do it are the smart ones cause of what can happen.... the flywheel is the mating part that takes the most torque and the most stress in combination with alot of heat what sense does it make to weaken its integrity? think about it. good luck to you all

so you saw some that could have possible lightened a stock flywheel or got a cheap lightweight one break and it makes all light wieght flywheels bad?
06-09-2008, 04:09 PM
subachad

Re:

Quote:

Originally Posted by Kinkyllama

I sell clutch kits with a lightweight flywheel, the clutch kits are listed for the F16 and F20 (D16 and D20 as well). The lightweight flywheel works only with the new clutch/presspure plate though.

Link? Wieght? Price?
06-19-2008, 01:52 AM
xiaogary

Re: Lightweight flywheels

I have 2 option for flywheel.

One is ALUMINIUM custom made in singapore to fit to original clutch kit.
The flywheel is 4Kg+.
Its made of aluminium.
Price of flywheel is $900US shipped to anywhere in the world.

One is Billet steel custom made from UK.
The flywheel is also 4Kg+.
Need to use customised clutch cover and clutch friction pad to work.
Does not fit original clutch kit.
However work is in process to make another billet steel flywheel to fit to original clutch kit.
Price is $1,000US shipped to anywhere in the world.

Picture on the left shows original clutch kit. In Middle is original flywheel. On Right is billet steel flywheel with customised clutch kit.
Total weight of billet steel flywheel and clutch kit on right is 7Kg. Original flywheel in middle alone is 9Kg. Original clutch kit on the left is 5Kg.
http://img380.imageshack.us/img380/2...mpare01sj1.jpg

Both flywheel and clutch kit assembled.
http://img515.imageshack.us/img515/3...mpare03gu3.jpg

Original 8.5 inch clutch kit. 11lbs (approximately 5Kg)
http://img178.imageshack.us/img178/4...utchkitej0.jpg

Billet Steel flywheel with customised clutch kit. 16 lbs. (About 7Kg)
http://img384.imageshack.us/img384/4...wheel09xt4.jpg

For clutch kit, I have a set of unused performance clutch kit on ebay. Its abt 3 lbs lighter than original clutch kit. It can be used on aveo without any modification. Fits original flywheel and the aluminium flywheel above.

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=270247825290

http://img48.imageshack.us/img48/433...chkit02pl7.jpg
07-11-2008, 08:55 PM
Kinkyllama

Re: Lightweight flywheels

Daft art has the fidanza flywheels, I think they are in the $400 range.

My clutch kit with light flywheel is in the $380-$530 range depending on which one you go with and what I have left in stock to choose from. The "lightweight" flywheel is simply a flat style flywheel from a lemans. So it's a factory, used, flywheel, no worries on it blowing up on you. You can substitute the lemans flywheel for a fidanza if you like. I just think lightweight flywheels are a bit expensive so I went this route.

Good lightweight flywheels won't blow up on you.

Sorry for the really late reply