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727 lasted 8 passes
#797675
09/10/10 10:46 AM
09/10/10 10:46 AM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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Finally got my car going and got 5 passes on it on a street legal night and it worked good, Brought it down for muscle car shootout and on the third run it started slipping on the launch. Brought it back checked the fluid looked good was down about half a pint so I filled it up gave it a easy run worked fine but I stomped on it on the return road and it started squelling. Brought it home pulled the pan and its full of shavings that look to be aluminum because they are not stuck to the magnet in the pan. Tranny guy says must be the converter. Pulled the tranny and drained the converter and the fluid out of it was really clean no shavings at all. The fluid doesnt smell burnt at all. Its a brand new coan 8" with a super sprag, I am going to send it in to have it checked out and cleaned and have the tranny checked out. The shavings in the pan are very shiny. Does this sound like the converter?
Last edited by dragram440; 09/10/10 10:47 AM.
67' charger 499 RB
10.57 at 127
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Re: 727 lasted 8 passes
[Re: dragram440]
#797676
09/10/10 11:04 AM
09/10/10 11:04 AM
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Joined: Jan 2006
Posts: 735
Spokane,WA
Genuinejed
super stock
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super stock
Joined: Jan 2006
Posts: 735
Spokane,WA
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Doesn't sound like converter to me, especially if the fluid from the converter is clean. What valve body are you running? I suspect something in the low/reverse drum or sprag? Slipping in low would have to be rear band, sprag, direct clutch.... Good luck!
1968 Plymouth road runner
1968 Dodge Coronet 500
64 D200
Good, Fast, Cheap. Pick Two.
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Re: 727 lasted 8 passes
[Re: Genuinejed]
#797677
09/10/10 11:28 AM
09/10/10 11:28 AM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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The valve body is a turbo action reverse manual. When I went to load it on the trailerr to go home reverse wouldnt work so I towed it backward then drove it on, Got home reverse worked backed it of the trailer put it in the garage and ran it on the jack and all gears seemed to work including reverse. I dont think It is the converter either. So should I still send the converter in to have it cleaned out or does the tranny filter catch all the shaving?
67' charger 499 RB
10.57 at 127
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Re: 727 lasted 8 passes
[Re: dragram440]
#797678
09/10/10 11:30 AM
09/10/10 11:30 AM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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My tranny guy said there is nothing in the tranny that would come apart that woudnt stick to the magnet in the pan. I dont know much about tranny's
67' charger 499 RB
10.57 at 127
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Re: 727 lasted 8 passes
[Re: ademon]
#797680
09/10/10 11:46 AM
09/10/10 11:46 AM
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Joined: Jul 2006
Posts: 388
Michigan
SD800
enthusiast
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enthusiast
Joined: Jul 2006
Posts: 388
Michigan
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I had a 727 that I put over $2000.00 into, It lasted about 8 passes, It was full of metal shaving. had a brand new turbo action trans brake in it, it was leaking internally. Cost me another $500.0 to have the tranny fixed and Turbo ation replaced the valve body.
I now run powerglides in my race cars.
You'll have plenty of time to sleep when your dead, let's go
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Re: 727 lasted 8 passes
[Re: ademon]
#797681
09/10/10 11:46 AM
09/10/10 11:46 AM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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Is the sprag in the converter aluminum. He thought it might be the sprag in the converter.
67' charger 499 RB
10.57 at 127
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Re: 727 lasted 8 passes
[Re: dragram440]
#797682
09/10/10 12:10 PM
09/10/10 12:10 PM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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You said yourself that it was slipping and whining. Doesn't sound like converter, but...????.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: 727 lasted 8 passes
[Re: StealthWedge67]
#797683
09/10/10 12:14 PM
09/10/10 12:14 PM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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will a basically stock 727 hold up to around 650 hp or do I need to completly upgrade.It has a turbo action valve body and the tranny guy said he put a 5.0 shift lever or arm in it. and a tci rebuild kit, whatever that consists of.
67' charger 499 RB
10.57 at 127
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Re: 727 lasted 8 passes
[Re: dragram440]
#797686
09/10/10 12:43 PM
09/10/10 12:43 PM
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Joined: Aug 2005
Posts: 989
WI, USA
67dodge67
mopar addict
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mopar addict
Joined: Aug 2005
Posts: 989
WI, USA
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Quote:
will a basically stock 727 hold up to around 650 hp or do I need to completly upgrade.It has a turbo action valve body and the tranny guy said he put a 5.0 shift lever or arm in it. and a tci rebuild kit, whatever that consists of.
Give John Cope a call at CRT (Cope Racing Trans). He's a member on here too. I may not have one of his top-notch 727's built by him, but I have A LOT of his top-notch advice, input, and parts in my 727. 
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Re: 727 lasted 8 passes
[Re: dragram440]
#797687
09/10/10 01:27 PM
09/10/10 01:27 PM
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Joined: Aug 2003
Posts: 43,259
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,259
Bend,OR USA
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I had the same thing happen recently, the thrust bearing in the converter broke and ate up the sprague, it ruined the converter beyond repair  send yours in now  I thought it was the trans also  I ended up taking the trans apart and treid cleaning it up some before putting it back together, it is now acting up going into reverse so I will have to clean the reverse servo and the valve body, which I didn't do to start with  Don't forget to flush the cooler if you run one  The aluminum from the converter went everywhere and was in all the passages
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 727 lasted 8 passes
[Re: 52savoy]
#797688
09/10/10 01:29 PM
09/10/10 01:29 PM
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Joined: Apr 2009
Posts: 190
Communist New York State, Comi...
We The People
member
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member
Joined: Apr 2009
Posts: 190
Communist New York State, Comi...
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I agree with building your own...I've done one 727 for a friend in a street driven coronet, that seems to work well. and built my own 727, its stood up to 650hp, with a good hand full of A&A parts... only 12 runs so far we'll see how I did this spring. I bought the "#1205 Chrysler 727 Technical Video" 1-800-785-2604. its pretty old now but I liked it, good clear directions and good video. the guy in it is named Paul Zank. if you can build an engine, measure clearances, and follow directions it aint too bad.
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Re: 727 lasted 8 passes
[Re: dragram440]
#797689
09/10/10 01:55 PM
09/10/10 01:55 PM
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Joined: May 2008
Posts: 1,131
Thigh-Gap Junction
@#$%&*!
New user name, Same old jerk!
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New user name, Same old jerk!
Joined: May 2008
Posts: 1,131
Thigh-Gap Junction
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Quote:
... Brought it home pulled the pan and its full of shavings that look to be aluminum because they are not stuck to the magnet in the pan....
You might have spun the sprag race in the case. Whatever the cause, you should pull it apart yourself, it's easy.
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Re: 727 lasted 8 passes
[Re: racerx]
#797691
09/11/10 10:31 AM
09/11/10 10:31 AM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
OP
super stock
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OP
super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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I have built a few engines and I built the whole car in one winter so I dont think I am dumb but just havent ever done a auto trans and really dont know much about them. I do have all winter now to do it if I wanted.
67' charger 499 RB
10.57 at 127
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Re: 727 lasted 8 passes
[Re: dragram440]
#797692
09/11/10 10:54 AM
09/11/10 10:54 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I have built a few engines and I built the whole car in one winter so I dont think I am dumb but just havent ever done a auto trans and really dont know much about them. I do have all winter now to do it if I wanted.
I'm like you I build most everything but I'm not big
on the trans... yes I have been in them but I always
had buddies that worked in the trans lab at Chrysler
so I let them do it... while I watched... a case of
beer inst bad but now I want to pull it and check it
out over the winter
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Re: 727 lasted 8 passes
[Re: dragram440]
#797693
09/11/10 10:56 AM
09/11/10 10:56 AM
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Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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Quote:
I have built a few engines and I built the whole car in one winter so I dont think I am dumb but just havent ever done a auto trans and really dont know much about them. I do have all winter now to do it if I wanted.
they really aren't bad to work on, I started doing my own a few years ago after a local tranny shop screwed me over on a 904 race tranny they supposedly built up for me.. long story short is buy the book's and get an old core tranny from the junk yard and tear into it and pay attention to the details,,you should be fine.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Good INFO IN THERE..very helpful 
