Hay all

I dont know if they make a lightened flywheel for our magnas.? Or if theres any kind of gain from one.? Let me know were i could by or any good for a mod?

Kurt

You can get a cro moly one from xtreme.


Only advice I can give based on my VR-4 is that it makes it much easier to stall!

There might be an evo flywheel that could mate up with it. Not sure...

You can get a cro moly one from xtreme.


Only advice I can give based on my VR-4 is that it makes it much easier to stall!

Did u notice a gain in power.? How much it weigh?

I actually changed from a VR-4 flywheel to an evo flywheel which is quite noticeably lighter. This was done largely to fit an evo clutch as they are easier to source. Just happened to be lighter

Does not seem to have made a positive difference overall but I haven't any dyno results. But it's noticeably easier to stall and generally I'd possibly recommend against it.


Different engine though! And this car really runs out of puff in the higher revs due to turbo restrictions where the lightened flywheel might help and may differ to the magna engine.

There might be an evo flywheel that could mate up with it. Not sure...

Evo flywheels do not match up. They are 7 bolt along with the vr-4, 380 and magna is 8 bolt.


Found that out the hard way at 10PM on a saturday, mid clutch job!
Was trying/planning to fit one of these magna cromoly flywheels, fail!

EDIT: got 7bolt/8bolt around the wrong way.

Mine:

http://www.joshuaburford.com/temagna/23.jpg

http://www.joshuaburford.com/temagna/22.jpg

Yes they make a difference. They make your car feel like a race car and you want to heel toe all the time as well as revving the car to death :P

Mine:

http://www.joshuaburford.com/temagna/23.jpg

http://www.joshuaburford.com/temagna/22.jpg

Yes they make a difference. They make your car feel like a race car and you want to heel toe all the time as well as revving the car to death :P

Wat brand is yours and how much does it weigh? Besides feeling like u can rev it does it feel better as in an actual performance gain?

No power gain from a lighter flywheel. It will however make rev changes quicker on gear changes, that is, the revs will drop down quicker when you change gears and take your foot off the accelerator. Of course, if you are flat shifting it will make no difference.

Just put a 380 flywheel and exedy hd clutch in my vrx, according to Mal the 380 wheel is lighter, either way there is definitely a difference on gear changes, it seems to 'snap' into gear when changed. I actually noticed this on my 1600km drive today and didn't have a reason for it so cheers for solving why :)

No power gain from a lighter flywheel. It will however make rev changes quicker on gear changes, that is, the revs will drop down quicker when you change gears and take your foot off the accelerator. Of course, if you are flat shifting it will make no difference.

So its just the feeling u get. But the cars not actually doing anything better?

So its just the feeling u get. But the cars not actually doing anything better?

The car is going to be quicker. Freeing up weight in the drivetrain doesn't mean the engine produces more power, it means that it can produce more power at the wheels. Freeing up that weight also means that the engine revs easier and you can rev through the gears faster, revving through gears faster = faster car.

That being said, a lightened flywheel in a RWD car isn't going to make a difference anywhere near that it does in a FWD car because it still has a heavy propshaft etc that it has to turn as well.

The car is going to be quicker. Freeing up weight in the drivetrain doesn't mean the engine produces more power, it means that it can produce more power at the wheels. Freeing up that weight also means that the engine revs easier and you can rev through the gears faster, revving through gears faster = faster car.

That being said, a lightened flywheel in a RWD car isn't going to make a difference anywhere near that it does in a FWD car because it still has a heavy propshaft etc that it has to turn as well.

Thats the answer ive been wanting. Thanks Neo.

Thats the answer ive been wanting. Thanks Neo.

The only drawback is that you have less rotating mass on your flywheel. So when you want to just settle down and drive somewhere, the car itself doesn't feel as easy to drive. The revs drop real fast when you let the clutch out, and when engaging the clutch on a higher gear, it will drop faster as well to match the revs to the road speed. Basically, it makes the car actually feel like a race car :P

Regular driving:
Imagine your back wheels jacked up off the ground, one a wheel with a tire, the other just an empty rim on the hub.
-The lighter, empty rim will be easier and faster to spin up by hand, but once you stop spinning it it will stop fairly soon.(stall)
-The wheel with a tyre on it, being heavier, will be harder to spin up as quickly as you could the empty lightweight rim, either taking more force to get it spinning as fast as the other in the same amount of time, or more time to get it spinning as fast with the same amount of force applied, but once its spinning it will keep spinning for a longer time than the empty wheel (not stall)

An engine with a lightweight flywheel will be able to get up and going faster than one with a heavy flywheel, but since it has a lot less mass rotating, there is a lot less effort needed to stall the engine if you engage the clutch too much with not enough throttle.
One with a heavier flywheel will be easier to drive, because if you do something wrong and the revs start to drop you have more time to notice the problem and fix it before the engine comes to a complete stall.

Special driving:
The engine has less weight to get spinning on acceleration and gains revs faster, and there is less weight that it has to slow down on deceleration, so it takes less time to get the revs where you want.
Depending on the design and how much power you put through it, make sure the flywheel and clutch still have enough contact area to get it to the wheels.


Disclaimer: Ignore me, I can't drive manual.

I was going to say, a lightened flywheel may improve acceleration due to less 'weight' thats being rotated, but because there is less momentum now, rev's drop quicker and may also affect / slow you down in the moment you change gears and the next gear engages......

Either way, it has pros and cons.