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Bruce Kwartler's flywheel explosion


Jon Galant VR4.org Administrator
Administrator


Galant VR-4 org Post #: 101792 posted 10/23/03 08:06 AM     Remind Me!  Send Private Message   Edit Post      
Supposed to be an 11 second Galant. Stock flywheel, not lightened, let go at 6800 rpm. It happened in 4th gear over 100 mph. He lost control after it happened when coolant got on the tires and then he smacked the wall twice. The clutch was a two month old ACT 2600.

http://home.comcast.net/~mcrcom/Galant/galant.html.txt

If you don't know who Bruce is, he owns Dave Buschur's old back halfed Talon. He is ok after this accident which is the only good news here.

I wonder if anyone will plug a scattershield on this post? Hmmmmm. [Smile]

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14bCrazy
turdpolisher


Galant VR-4 org Post #: 101793 posted 10/23/03 08:30 AM     Remind Me!  Send Private Message   Edit Post      
First off I know that shields are a good thing. Harry have you had any customers have a fly wheel come apart with a shield installed. Just wondering if the shield would keep everything inside it or would it just slow down the flywheel as it breaks though. One of my all motor honda competors had one go and I believe it though all the pieces out the bottom.

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NoMoreVR4
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Galant VR-4 org Post #: 101794 posted 10/23/03 08:43 AM     Remind Me!  Send Private Message   Edit Post      
Flywheels can still come apart with a Scattershiled( I'm sure that is what you meant).

They just minimize the damage & prevent possible deaths. Yes nost of the damage will come out the bottom of the car & not into the passenger compartment.

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Hertz Galant VR4.org Administrator
OneTitle to rule them all.
77/2000


Galant VR-4 org Post #: 101795 posted 10/23/03 08:47 AM     Remind Me!  Send Private Message   Edit Post      
That is a very sobering display of physics. That strut tower bar deflected a little bit, too... probably saved the windshield, at least. That looks like it was a very nice Galant -- but now, that is an awful lot of damage. I'm glad the driver is okay.

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Doug Thomas
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Galant VR-4 org Post #: 101796 posted 10/23/03 08:56 AM     Remind Me!  Send Private Message   Edit Post      
That really sucks. A Fidanza wheel would have prevent that. Fidanza flywheel will not explode. Before you invest in a scattershield get yourself a good flywheel.

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GalantVR41062
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Galant VR-4 org Post #: 101797 posted 10/23/03 09:11 AM     Remind Me!  Send Private Message   Edit Post      
Or both, I plan on some kind of scatter shield and a roll cage over winter. I have a JUN chromoly flywheel, I really hope it makes it threw this weekend, and a dyno session nov 1st.

~John

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14bCrazy
turdpolisher


Galant VR-4 org Post #: 101798 posted 10/23/03 09:21 AM     Remind Me!  Send Private Message   Edit Post      
I know that they still would come apart. I just wonder if it would blow right though the shield. It would be alot beter than nothing that for sure. Is it that the aftermarket flywheels will not come apart or are the stock ones just old and worn out. I don't want a lightened flywheel. They do help the car rev up faster but they also rev down faster. Ive had them on some of the Honda/Acura's I,ve had and I didn't really like them.

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Bimmubishi
giant log


Galant VR-4 org Post #: 101799 posted 10/23/03 09:26 AM     Remind Me!  Send Private Message   Edit Post      
Damn! He lives up the street from me. I'll have to check it out. That was my buddy Oren's car. He sold it to Bruce. I'm glad he's okay. It looks like the car's totalled.

AL

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Doug Thomas
Unregistered


Galant VR-4 org Post #: 101800 posted 10/23/03 09:42 AM     Remind Me!  Send Private Message   Edit Post      
It doesn't matter if the flywheel is a stock new one or an old one I've seen them both come part. Fidanza makes 1050 steel chromoly heavier flywheel 18lb for people who don't like their 9lb one.

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dsmsleeper
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Galant VR-4 org Post #: 101801 posted 10/23/03 10:01 AM     Remind Me!  Send Private Message   Edit Post      
Would the JUN chromoly hold up like the Fidenza?

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14bCrazy
turdpolisher


Galant VR-4 org Post #: 101802 posted 10/23/03 10:09 AM     Remind Me!  Send Private Message   Edit Post      
Who has the best prices on the Fidanza's. I looked on there web site and I didn't see the heaver ones.

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Doug Thomas
Unregistered


Galant VR-4 org Post #: 101803 posted 10/23/03 10:12 AM     Remind Me!  Send Private Message   Edit Post      
quote:
Originally posted by dsmsleeper:
Would the JUN chromoly hold up like the Fidenza?

The Jun's can't hold up like the Fidanza's.
Check the link below.

http://www.roadraceengineering.com/clutchandflywheeltech.htm

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dsmsleeper
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Galant VR-4 org Post #: 101804 posted 10/23/03 10:16 AM     Remind Me!  Send Private Message   Edit Post      
quote:
If you are running a puck style disc and or plan on running on a slipping clutch for too long, a lightened flywheel isn't for you. But then I don't know of any flywheel that will like that either. The same heat that cracks a stock flywheel will warp a Jun flywheel because they are so thin. The friction surface of an aluminum flywheel will warp and twist up with the same abuse.

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Doug Thomas
Unregistered


Galant VR-4 org Post #: 101805 posted 10/23/03 10:18 AM     Remind Me!  Send Private Message   Edit Post      
quote:
Originally posted by 14bCrazy:
Who has the best prices on the Fidanza's. I looked on there web site and I didn't see the heaver ones.

The heavier ones are a special order from Fidanza. Contact Turbotrix if you want to order one.

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Doug Thomas
Unregistered


Galant VR-4 org Post #: 101806 posted 10/23/03 10:26 AM     Remind Me!  Send Private Message   Edit Post      
quote:
Originally posted by dsmsleeper:
quote:
If you are running a puck style disc and or plan on running on a slipping clutch for too long, a lightened flywheel isn't for you. But then I don't know of any flywheel that will like that either. The same heat that cracks a stock flywheel will warp a Jun flywheel because they are so thin. The friction surface of an aluminum flywheel will warp and twist up with the same abuse.

The friction surface on the Fidanza will not warp. The friction surface is held down with 20 bolts.

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number3
Senior Member


Galant VR-4 org Post #: 101807 posted 10/23/03 10:41 AM     Remind Me!  Send Private Message   Edit Post      
What happened to the moonroof?

[Frown]

Harry

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NoMoreVR4
Unregistered


Galant VR-4 org Post #: 101808 posted 10/23/03 10:44 AM     Remind Me!  Send Private Message   Edit Post      
My guess is that it shattered when he hit the wall. The flex of the car will cause that.

But if you look close there is damage to the roof.

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Lucky13
Junior Member
1758/2000


Galant VR-4 org Post #: 101809 posted 10/23/03 11:28 PM     Remind Me!  Send Private Message   Edit Post      
That was just painful to look at. Guess it takes something like that to wake others up to the real danger present.

Glad to hear he's ok.....sux the car is pretty tore up.

91' GVR4 #1758/2000
02' WRX

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curtis Galant VR4.org Moderator
Space Blanket from NASA plumbed into the attic
475/1000


Galant VR-4 org Post #: 101810 posted 10/23/03 01:09 PM     Remind Me!  Send Private Message   Edit Post      
If this guy needs anything we need to hook him up we all probably have all the parts he needs just laying around. I've got a bellhousing and case if he needs it. We don't need another one of these going to the junk yard.

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Tevenor
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Galant VR-4 org Post #: 101811 posted 10/23/03 01:26 PM     Remind Me!  Send Private Message   Edit Post      
quote:
Originally posted by number3:
What happened to the moonroof?

[Frown]

Harry

Hood popped, flew open, and crushed it.

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number3
Senior Member


Galant VR-4 org Post #: 101812 posted 10/23/03 02:11 PM     Remind Me!  Send Private Message   Edit Post      
quote:
Originally posted by 14bCrazy:
Harry have you had any customers have a fly wheel come apart with a shield installed.

Not that I know of.

Harry

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theymightbegalants
Unregistered


Galant VR-4 org Post #: 101813 posted 10/23/03 07:53 PM     Remind Me!  Send Private Message   Edit Post      
Wow, that is definitely an impressive sight. Unfortunate that the car's wrecked, fortunate that the driver walked away, but impressive nonetheless.

I also would be very interested to see just how a scattershield affects an exploding flywheel. It seems to me, from what I've seen/read, that exploding flywheels tend to shoot out in one plane? The one they're spinning in? And this is why a scattershield doesn't go all the way around, but just around the periphery (sp?) of the bellhousing. Woulld it be possible for a chunk of flywheel to punch through the bellhousing, hit the scattershield and be deflected through the side? Does the scattershield dent and "catch" the shrapnel?

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Jon Galant VR4.org Administrator
Administrator


Galant VR-4 org Post #: 101814 posted 10/24/03 07:28 AM     Remind Me!  Send Private Message   Edit Post      
The most impressive picture I've ever seen was that of Jeff Hill's old Fidanza flywheel. The torque from his motor broke the flywheel. The center piece stayed bolted on and the rest of the flywheel just came off and bounced around inside the bell housing.

I don't remember but I don't think the bellhousing was even broken from the flywheel. Talk about a safer flywheel!

I believe Fidanza has since made the flywheel stronger in that area and that is the only one I know of that has broken.

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Hertz Galant VR4.org Administrator
OneTitle to rule them all.
77/2000


Galant VR-4 org Post #: 101815 posted 10/24/03 08:48 AM     Remind Me!  Send Private Message   Edit Post      
Hmm... when it comes to a flywheel exploding, less mass is definitely better.

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udriveu
Unregistered


Galant VR-4 org Post #: 101816 posted 10/24/03 09:00 AM     Remind Me!  Send Private Message   Edit Post   
Since the other thread got locked:
quote:
--------------------------------------------------------------------------------
Originally posted by [email protected]:

quote:
--------------------------------------------------------------------------------
Originally posted by udriveu:
What would make a flywheel blow up like that? other then high revving? Is it affected by amount of power at all? acutal age of the flywheel?
--------------------------------------------------------------------------------

The flywheel grenaded as it's either a lightweight OEM or an aluminum flywheel.

Geoff
Mach V
--------------------------------------------------------------------------------

What I meant was, would you run the risk of blowing one up on a stock car by just revving high?

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