Re: 727 explosion at Milan last night....
[Re: John_Kunkel]
#2390469
10/20/17 08:26 PM
10/20/17 08:26 PM
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Joined: Dec 2005
Posts: 12,289 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 12,289
Fulton County, PA
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A local racer recently lost a sprag which wiped out the case and rear support. Disassembly found other distressed parts. I gave him a list of the minimum parts I would replace but he won't spend the money.
Well then he's asking for it. People have been blowing these things up for 50 years, at least. If you haven't gotten the memo by now, it's hard to feel bad for you when you shell one.
If the results don't match the theory, change the theory.
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Re: 727 explosion at Milan last night....
[Re: John_Kunkel]
#2390470
10/20/17 08:27 PM
10/20/17 08:27 PM
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Joined: Nov 2004
Posts: 3,518 pacific northwest
Stroker Scamp
master
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master
Joined: Nov 2004
Posts: 3,518
pacific northwest
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Yikes, would be a good time to list the parts needed to prevent this
footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip 73 Duster 340 street strip 12.79 @ 105
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Re: 727 explosion at Milan last night....
[Re: dustergirl340]
#2390478
10/20/17 08:41 PM
10/20/17 08:41 PM
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Joined: May 2006
Posts: 1,260 New Mexico
Adobedude
pro stock
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pro stock
Joined: May 2006
Posts: 1,260
New Mexico
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Low band apply valve body. Billet steel drum. Bolt in sprag.
At least I hope that will, that's what I have.
2001 Dodge Dakota 408 All Motor 11.27 @ 117.83 mph 2017 NM Mopar Challenge Series Champion.
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Re: 727 explosion at Milan last night....
[Re: Adobedude]
#2390540
10/20/17 10:31 PM
10/20/17 10:31 PM
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Joined: Jan 2004
Posts: 1,468 N.Y.
sixpacksteve
pro stock
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pro stock
Joined: Jan 2004
Posts: 1,468
N.Y.
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i went with aluminum drum to prevent this!
Hell Hath No Fury Like Mine
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Re: 727 explosion at Milan last night....
[Re: Stroker Scamp]
#2390562
10/20/17 10:53 PM
10/20/17 10:53 PM
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Joined: Nov 2003
Posts: 3,576 Dandridge TN
Dabee
master
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master
Joined: Nov 2003
Posts: 3,576
Dandridge TN
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Yikes, would be a good time to list the parts needed to prevent this Im going to stir the pot. Build a power glide using all the correct race parts. Problem solved.
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Re: 727 explosion at Milan last night....
[Re: Dabee]
#2390573
10/20/17 11:13 PM
10/20/17 11:13 PM
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Joined: Feb 2005
Posts: 20,272 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,272
PA.
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Yikes, would be a good time to list the parts needed to prevent this Im going to stir the pot. Build a power glide using all the correct race parts. Problem solved. That was my choice. I lost some ET but its way more consistent, cheaper, more options, and safer. I've since recovered most of the lost ET so its a win win.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.38@138.67
Livin and lovin life one day at a time
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Re: 727 explosion at Milan last night....
[Re: dustergirl340]
#2390597
10/21/17 12:00 AM
10/21/17 12:00 AM
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Joined: May 2006
Posts: 1,260 New Mexico
Adobedude
pro stock
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pro stock
Joined: May 2006
Posts: 1,260
New Mexico
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I NEED a three speed, and it's a three speed 727 that blew up...info to help those of us running a 727 would be appreciated. Thanks.
2001 Dodge Dakota 408 All Motor 11.27 @ 117.83 mph 2017 NM Mopar Challenge Series Champion.
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Re: 727 explosion at Milan last night....
[Re: dustergirl340]
#2390599
10/21/17 12:01 AM
10/21/17 12:01 AM
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Joined: Jan 2003
Posts: 20,328 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,328
Park Forest, IL
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I saw a guy blow up a 727 in a 340 Barracuda dialed 13:70. Had a Cheetah with no LBA and no blanket. His trans builder had tried go talk him into a billet drum and a blanmet, but he claimed he couldn't afford it. When it blew up it broke his foot and he was off work over a month.
727 is no place to be "frugal", especially when good parts aren't that expensive.
"Everybody funny, now you funny too."
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Re: 727 explosion at Milan last night....
[Re: Adobedude]
#2390603
10/21/17 12:08 AM
10/21/17 12:08 AM
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Joined: Dec 2005
Posts: 12,289 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 12,289
Fulton County, PA
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I NEED a three speed, and it's a three speed 727 that blew up...info to help those of us running a 727 would be appreciated. Thanks.
The parts you mentioned are a good start. I replaced rollers and springs regularly as well. Anything happens to the rear, driveshaft, spin the tires hard or anything like that, get the trans out and look at the roller clutch. Put it in second before you even go into the water box.
If the results don't match the theory, change the theory.
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Re: 727 explosion at Milan last night....
[Re: dustergirl340]
#2390614
10/21/17 12:24 AM
10/21/17 12:24 AM
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Joined: Sep 2015
Posts: 1,096 Australia
ozymaxwedge
super stock
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super stock
Joined: Sep 2015
Posts: 1,096
Australia
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I am going to call the builder of the trans that's in my 10.0 street Barracuda and find out whats in it.
1963 Plymouth Max Wedge 1971 Barracuda
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Re: 727 explosion at Milan last night....
[Re: CMcAllister]
#2390618
10/21/17 12:28 AM
10/21/17 12:28 AM
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Joined: Feb 2005
Posts: 20,272 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,272
PA.
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You brought up a very good point about spinning hard. With radials now becoming so popular they either bite, or they don't. My Friend picked up .20 on radials a few weeks ago BUT during our Halloween Race I don't know what happened but he spun like a mad man during one time trial. And our track is known for good traction. If it was a 727 instead of a powerglide major damage could have happened inside the transmission.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.38@138.67
Livin and lovin life one day at a time
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Re: 727 explosion at Milan last night....
[Re: pittsburghracer]
#2390630
10/21/17 01:11 AM
10/21/17 01:11 AM
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Joined: Apr 2016
Posts: 184 Memphis,TN
J. Hammer
member
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member
Joined: Apr 2016
Posts: 184
Memphis,TN
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Had a friends 1965 Belvedere puke its 727 on the street earlier this year. Could have been worse.
Last edited by J. Hammer; 10/21/17 01:12 AM.
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Re: 727 explosion at Milan last night....
[Re: pittsburghracer]
#2390634
10/21/17 01:29 AM
10/21/17 01:29 AM
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Joined: Jan 2008
Posts: 4,269 Canada
WO23Coronet
master
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master
Joined: Jan 2008
Posts: 4,269
Canada
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You brought up a very good point about spinning hard. With radials now becoming so popular they either bite, or they don't. My Friend picked up .20 on radials a few weeks ago BUT during our Halloween Race I don't know what happened but he spun like a mad man during one time trial. And our track is known for good traction. If it was a 727 instead of a powerglide major damage could have happened inside the transmission. How hard was he spinning? I don’t have anything with a 727 in it now but you guys have me absolutely terrified. After reading this I wouldn’t want to do a burnout or burn rubber with one. I knew there were nono’s but I’d be really fun shy to have any fun lol
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Re: 727 explosion at Milan last night....
[Re: pittsburghracer]
#2390692
10/21/17 06:27 AM
10/21/17 06:27 AM
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Joined: Jan 2008
Posts: 2,363 Cotati, CA
Dave Hall
top fuel
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top fuel
Joined: Jan 2008
Posts: 2,363
Cotati, CA
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If it was a 727 instead of a powerglide major damage could have happened inside the transmission. Spin and shake will screw up ALL automatics. Every T/D and T/S guy I know has a spare glide or 400 or Lenco. Most Powerglide users I know have at least two others laying around. Buddy of mine running Super E back in the 90's went through at least two glides every race! Built right, used and maintained correctly, a 727 should handle any of our 6-900hp engines. I do have a picture of my buddy's '63 Belvedere that looks like it ran over a deer on the starting line. CSR shield barely dented the floor. There wasn't a piece bigger than your fist left. I'll try to find it and post it.
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Re: 727 explosion at Milan last night....
[Re: John_Kunkel]
#2390703
10/21/17 09:27 AM
10/21/17 09:27 AM
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Joined: Apr 2005
Posts: 1,322 Michigan
crlush
pro stock
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pro stock
Joined: Apr 2005
Posts: 1,322
Michigan
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A local racer recently lost a sprag which wiped out the case and rear support. Disassembly found other distressed parts. I gave him a list of the minimum parts I would replace but he won't spend the money.
Sometimes an incident like this is the only way to make believers out of skeptics.
You should have posters made of all the 727 failures due to stock parts in high hp cars and hang them in your shop, I saved these pics on this thred and have some others i found.
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