Flywheel heat cracks
#3048387
06/06/22 05:58 PM
06/06/22 05:58 PM
|
Joined: Aug 2006
Posts: 2,499 God's Country Maryland
GODSCOUNTRY340
OP
top fuel
|
OP
top fuel
Joined: Aug 2006
Posts: 2,499
God's Country Maryland
|
How bad do heat cracks have to be before the flywheel is not usable?
I love the smell of Deer guts in the morning, it smells like... VICTORY!
|
|
|
Re: Flywheel heat cracks
[Re: GODSCOUNTRY340]
#3048502
06/07/22 03:16 AM
06/07/22 03:16 AM
|
Joined: Aug 2003
Posts: 43,127 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
|
Last edited by Cab_Burge; 06/08/22 03:56 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: Flywheel heat cracks
[Re: GODSCOUNTRY340]
#3048526
06/07/22 08:36 AM
06/07/22 08:36 AM
|
Joined: Jan 2003
Posts: 10,706 North Dakota
6PakBee
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 10,706
North Dakota
|
How bad do heat cracks have to be before the flywheel is not usable? Did you sand or dress up the flywheel? It's strange to have heat cracks with no evidence of overheating. As to the public being in harm's way from a flywheel failure, that would be your last concern if that comes through the floor pan. Oh, BTW, I would not run that flywheel if the rest of it has that pattern. Multiple radial cracks in such close proximity aren't good. I'd wager that if you checked that with dye penetrant it would look like an alkali flat.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
|
|
|
Re: Flywheel heat cracks
[Re: 57Fury440]
#3048869
06/08/22 11:47 AM
06/08/22 11:47 AM
|
Joined: Jan 2003
Posts: 74,978 U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,978
U.S.S.A.
|
If that was mine I would replace it. Same here , how much are your feet worth? I don't reuse old heat checked flywheels , a billet flywheel is cheaper than a wheelchair ...
running up my post count some more .
|
|
|
Re: Flywheel heat cracks
[Re: GODSCOUNTRY340]
#3049017
06/08/22 09:38 PM
06/08/22 09:38 PM
|
Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
I Live Here
|
I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
|
How bad do heat cracks have to be before the flywheel is not usable? This shouldn't even be a discussion, buy a quality SFI approved flywheel.......
|
|
|
Re: Flywheel heat cracks
[Re: DAYCLONA]
#3049021
06/08/22 09:50 PM
06/08/22 09:50 PM
|
Joined: May 2019
Posts: 6,228 nowhere
Sniper
master
|
master
Joined: May 2019
Posts: 6,228
nowhere
|
How bad do heat cracks have to be before the flywheel is not usable? This shouldn't even be a discussion, buy a quality SFI approve flywheel....... Why? Is this the race forum? Nothing wrong with a OE replacement type flywheel.
|
|
|
Re: Flywheel heat cracks
[Re: JohnRR]
#3049767
06/11/22 08:10 PM
06/11/22 08:10 PM
|
Joined: Apr 2006
Posts: 4,220 West Plains, MO
DrCharles
master
|
master
Joined: Apr 2006
Posts: 4,220
West Plains, MO
|
If that was mine I would replace it. Same here , how much are your feet worth? I don't reuse old heat checked flywheels , a billet flywheel is cheaper than a wheelchair ... My feet are worth as much as my Lakewood scattershield. But I agree, I wouldn't run that one - by the time you get done paying the machine shop, you could buy a new one
|
|
|
Re: Flywheel heat cracks
[Re: Sniper]
#3049927
06/12/22 01:25 PM
06/12/22 01:25 PM
|
Joined: Aug 2003
Posts: 43,127 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
|
[quote=DAYCLONA][quote=GODSCOUNTRY340] Nothing wrong with a OE replacement type flywheel. B.S. OEM stock iron flywheels will explode if damaged and rev over the limit that they will fail at, around 4500 RPM I've seen it on stock GM and Ford street cars Steel is not as prone to explode as iron flywheels are, hence the advent and success of the after market racing flywheel industry
Last edited by Cab_Burge; 06/12/22 01:25 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: Flywheel heat cracks
[Re: Cab_Burge]
#3049940
06/12/22 02:26 PM
06/12/22 02:26 PM
|
Joined: May 2019
Posts: 6,228 nowhere
Sniper
master
|
master
Joined: May 2019
Posts: 6,228
nowhere
|
[quote=DAYCLONA][quote=GODSCOUNTRY340] Nothing wrong with a OE replacement type flywheel. B.S. OEM stock iron flywheels will explode if damaged and rev over the limit that they will fail at, around 4500 RPM I've seen it on stock GM and Ford street cars Steel is not as prone to explode as iron flywheels are, hence the advent and success of the after market racing flywheel industry There is a reason we don't drive Fords or Chevys. Extrapolating from a different manufacturer is a great way to go wrong with confidence. Pretty sure I've wound up stock Mopar flywheels well past 4500 rpm with zero failures on multiple occasions in multiple vehicles. The only reason there is an aftermarket RACING flywheel industry is because of the SFI requirement. Nothing more, nothing less and since this isn't the RACING forum here one has to assume we are talking about a street car. SFI is a liability modifier and a way for the track, the sanctioning body and the racer to cover themselves if something happens and someone in the stands is hurt.
|
|
|
|
|