Getting a 727 to live
#791547
09/03/10 10:18 AM
09/03/10 10:18 AM
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Joined: Sep 2003
Posts: 2,175 Duloc
The Shadow
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OP
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Joined: Sep 2003
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Duloc
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Has anybody got a high hp/tq combo in a heavy car that has any tricks to keeping 3rd gear clutches in a 727? I've tried a standard clutch set up in an a&a billet drum Upgraded to the tcs large piston drum with 6 clutches. Changed valve bodies from j/w to a&a. Nothing yet has been able to hold the 3rd gear. I'm thinking the only thing left is to up the line pressures. If that doesn't work it may mean the 727 is at the end of the line.
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Re: Getting a 727 to live
[Re: The Shadow]
#791548
09/03/10 11:55 AM
09/03/10 11:55 AM
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Joined: Feb 2007
Posts: 5,080 organ
maximum entropy
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master
Joined: Feb 2007
Posts: 5,080
organ
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that's one thing i've never had a problem with. how much power? i've used the "blue plate" clutches in a billet drum. tell us more about your combo.
for what is the good life if not doing things thoughtfully?
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Re: Getting a 727 to live
[Re: maximum entropy]
#791551
09/03/10 12:16 PM
09/03/10 12:16 PM
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Joined: Sep 2003
Posts: 2,175 Duloc
The Shadow
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OP
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It's a procharged hemi making 1200hp/1000tq in a 4000lb roadrunner I had raybestos blue clutches in the first drum with the waffle style sipes. The tcs drum has 6 alto red clutches. We did air checks for clutch engagements.
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Re: Getting a 727 to live
[Re: The Shadow]
#791555
09/03/10 01:07 PM
09/03/10 01:07 PM
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Joined: Jul 2008
Posts: 30,474 Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,474
Florida STAYcation
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Quote:
It's a procharged hemi making 1200hp/1000tq in a 4000lb roadrunner I had raybestos blue clutches in the first drum with the waffle style sipes. The tcs drum has 6 alto red clutches. We did air checks for clutch engagements.
..... and HOW MUCH line-pressure are you running ?
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Re: Getting a 727 to live
[Re: 727specialist]
#791558
09/03/10 05:41 PM
09/03/10 05:41 PM
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Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
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master
Joined: Nov 2004
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Check the sealing area of the drum (you may have a steel sleeve already Rick sells them this way). If not the seals that go on the back of the pump can hurt the drum. I use the teflon ones. Can't remember but either the cast or stainless ones don't get along with alluminum.
I can't speak for JW but I have seen this before with an A&A VB. I used to wipe these clutches out about once a year with a TA VB. Like him or hate him Joe Chrisman puts extreme power through a 727. Never hurt a clutch using his Tranzact VB even the Drum looked like junk in the sealing ring area. Many people speak well of the Griner too I just never personally ran one.
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: Getting a 727 to live
[Re: FastmOp]
#791561
09/03/10 06:35 PM
09/03/10 06:35 PM
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Joined: Aug 2003
Posts: 4,055 Salina ks
572_dup2
Back On The Bumper!!
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Back On The Bumper!!
Joined: Aug 2003
Posts: 4,055
Salina ks
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I had that same problem.... the cure John Cope C.R.T.
Shawn Jennings
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Re: Getting a 727 to live
[Re: 572_dup2]
#791562
09/03/10 10:33 PM
09/03/10 10:33 PM
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Joined: Sep 2003
Posts: 2,175 Duloc
The Shadow
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OP
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I don't think it can be seal issues as it's all new stuff. It has done it on 2 different drums and valve bodies. The tcs drum has a 55% bigger piston and that still doesn't seem to help. I don't know what the line pressures we have yet but once it's back together again it will be checked. Gonna start from scratch with a new virgin case.
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Re: Getting a 727 to live
[Re: The Shadow]
#791563
09/03/10 10:37 PM
09/03/10 10:37 PM
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Joined: Jul 2008
Posts: 30,474 Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,474
Florida STAYcation
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Quote:
I don't think it can be seal issues as it's all new stuff. It has done it on 2 different drums and valve bodies. The tcs drum has a 55% bigger piston and that still doesn't seem to help. I don't know what the line pressures we have yet but once it's back together again it will be checked. Gonna start from scratch with a new virgin case.
55% bigger piston ? ..??
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Re: Getting a 727 to live
[Re: dOc !]
#791564
09/03/10 10:40 PM
09/03/10 10:40 PM
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Joined: Sep 2003
Posts: 2,175 Duloc
The Shadow
OP
top fuel
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OP
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Joined: Sep 2003
Posts: 2,175
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Quote:
Quote:
I don't think it can be seal issues as it's all new stuff. It has done it on 2 different drums and valve bodies. The tcs drum has a 55% bigger piston and that still doesn't seem to help. I don't know what the line pressures we have yet but once it's back together again it will be checked. Gonna start from scratch with a new virgin case.
55% bigger piston ? ..??
http://www.tcsproducts.com/details.html?id=5
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Re: Getting a 727 to live
[Re: dOc !]
#791566
09/03/10 11:14 PM
09/03/10 11:14 PM
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Joined: Jan 2003
Posts: 4,244 Canada
Kam*Kuda
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master
Joined: Jan 2003
Posts: 4,244
Canada
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You had an earlie issue.. Is it the same issue or different?
1970 Barracuda Convertible 1968 Satellite Street Strip car 1654.5 Mustang 1955 Land Rover
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