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727 parts for street/strip? #2806613
08/08/20 04:13 PM
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I'm looking at some parts to upgrade the 727 in my Duster over the winter. The engine makes a little over 600 ft-lbs of torque and the transmission is all stock except for the Turbo Action valve body. So I'm thinking of going with a steel drum and some other upgrades. I came across this info from TCS which looks interesting. They have a couple of choices of steel drums as well as an aluminum drum with a steel band on it. Just wondering what a good choice would be for my situation. I drive the Duster mostly on the street but it has enough power to run high 10's at the track and I want it to be safe and reliable.

http://www.tcsproducts.com/media/1/TCS_TF727_Performance_Transmission_Parts.pdf

Re: 727 parts for street/strip? [Re: AndyF] #2806630
08/08/20 05:01 PM
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Re: 727 parts for street/strip? [Re: AndyF] #2806633
08/08/20 05:07 PM
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Bend,OR USA
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I've never heard of or spoken to any Mopar racers that had something bad to say about any of the aluminum drums with the steel sleeves on them work
I would use one in a minute, especially on a street and strip car, way better than a stock drum work twocents


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 727 parts for street/strip? [Re: AndyF] #2806635
08/08/20 05:14 PM
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I have no experience with aluminum drums on the street but I've always been skeptical of the durability of the aluminum drum drive lugs in contact with the steel driving shell. shruggy


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Re: 727 parts for street/strip? [Re: AndyF] #2806641
08/08/20 05:20 PM
08/08/20 05:20 PM
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Downtown Roebuck Ont
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Door #2 sounds like the answer to me. Extra clamping force and friction count can't be a bad thing for a high torque application with mostly street duty.

I don't see the aluminum drum with sleeve as an option because my definition of streetable requires a minimum 100,000 mile life to overhaul and for hard parts to go effectively forever. Race car with some street time, probably not a bad choice tho.

Kevin

Re: 727 parts for street/strip? [Re: Twostick] #2806646
08/08/20 05:36 PM
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I drive the Duster maybe 1000 miles a year on the street and I doubt I'd put more than 10,000 miles on the trans before I decided to change things up so I don't need OEM durability. I'm mostly interested in something that is reliable on the street and safe at the track behind 600+ hp.

Re: 727 parts for street/strip? [Re: AndyF] #2806659
08/08/20 06:31 PM
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i have quite a few TCS parts in both my transmissions. My street car has their Steel billet drum & alloy retainer with all the springs, a rear roller support & bolt-in sprag. While i was in the trans i also added the billet servos & 4.2 lever & hardened pump gears. My street engine has 645 rwhp & it takes a hammering at the street night drags, faster than a Hellcat.

Re: 727 parts for street/strip? [Re: AndyF] #2806670
08/08/20 07:14 PM
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Get the billet drum and a steel front planetary and never worry.

Re: 727 parts for street/strip? [Re: rebel] #2806678
08/08/20 07:53 PM
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Originally Posted by rebel
i have quite a few TCS parts in both my transmissions. My street car has their Steel billet drum & alloy retainer with all the springs, a rear roller support & bolt-in sprag. While i was in the trans i also added the billet servos & 4.2 lever & hardened pump gears. My street engine has 645 rwhp & it takes a hammering at the street night drags, faster than a Hellcat.


That sounds like a plan. I was coming up with the same parts list in my head as I was flipping thru their catalog.

Re: 727 parts for street/strip? [Re: AndyF] #2806681
08/08/20 07:59 PM
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I had A&A aluminum drum in my 1000lb/ft turbo car. Miles in the neighborhood of what you expect. I had the trans gone though by Rick at A&A after blowing up a rear end. Trans was about 4 seasons old when it was gone through. He warned me during the original build about wear in the sealing ring area of the drum with the combination of street driving and 180 psi line pressure. He was very surprised at how the drum looked after 4 years in the car. He asked about fluid change intervals and fluid type. I changed the fluid/filter seasonally and used the dacron((spelling?)) filter instead of the mesh screen that was included in the original build. I always ran Redline brand synthetic fluid for towing. Not their race fluid. Rick told me to keep doing what I was doing. The drum had no wear that would cause any issues.
That was a long time ago. He was considering installing steel sealing surface rings in the aluminum drums back then. I don’t know if that ever happened.
I can tell you with 100% confidence that you can use his aluminum drum without issue for what you described.


"use it 'till it breaks, replace as needed"
Re: 727 parts for street/strip? [Re: AndyF] #2806692
08/08/20 08:51 PM
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Mt Morris Michigan
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Andy, i have been using that TCS aluminum drum with steel liner(full metal jacket) for 3 seasons now without issue. I bought all my components for 727specialists. Years back i inquired about it on here and know one said good or bad about it, so i decided to give it a try. lighter than the stock and billet drum. I have nothing red inside my tranny except the fluid, its just not needed street/strip. My clutches look like stock clutches and i believe my bands are kevlar. When i recently removed the trans pan i couldn't believe how clean it was. Never seen one even close to this clean when i used the alto reds. I use billet servos and a cope rmvb. Give the guy over at 727specialist a call, he will hook you up.

Re: 727 parts for street/strip? [Re: mopar dave] #2806782
08/09/20 10:07 AM
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I have a TCS billet steel front drum with the aluminum piston, 15 springs with a billet retainer, billet servos, solid Alto red lined front band, Alto red clutches with Kolene steels. I also removed the governor assembly and made an aluminum spacer to take it's place. Also tapped and plugged the governor feed hole in the park gear.

Re: 727 parts for street/strip? [Re: justinp61] #2806787
08/09/20 10:27 AM
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We were also skeptical of the billet aluminum drum on the street, so we opted for the billet steel drum, the super sprag, really deep pan, the 5 cluch deal and a few other parts, all spec'd from A&A, and ours has been awesome at over 700ft-lbs of torque. The only thing I have torched was a tail shaft governor...A&A makes a kit to eliminate that...I ended up swapping tail shfts...


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Re: 727 parts for street/strip? [Re: Dragula] #2806812
08/09/20 11:50 AM
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I used TCI for the better prices for the steel drum,max lug pump gears and a few other items.I did buy the 5 pinion planet from A&A for $500. My transmission builder now uses the 6 pinion steel planet out of the Cummins trans,it cost under $60.I/m making north of 800 ft lbs and still pressing buttons!


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Re: 727 parts for street/strip? [Re: hemi-itis] #2806837
08/09/20 12:59 PM
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That is an interesting tip. I hadn't heard of the $60 Cummins setup. I'll have to look into that.

Re: 727 parts for street/strip? [Re: Dragula] #2806838
08/09/20 01:00 PM
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Originally Posted by Dragula
We were also skeptical of the billet aluminum drum on the street, so we opted for the billet steel drum, the super sprag, really deep pan, the 5 cluch deal and a few other parts, all spec'd from A&A, and ours has been awesome at over 700ft-lbs of torque. The only thing I have torched was a tail shaft governor...A&A makes a kit to eliminate that...I ended up swapping tail shfts...


Eliminating the governor makes sense. I thought about it last time I went thru the trans but I left it in place. I'll take it out next time around since I have a manual shift valve body.

Re: 727 parts for street/strip? [Re: AndyF] #2806856
08/09/20 01:31 PM
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Originally Posted by AndyF
That is an interesting tip. I hadn't heard of the $60 Cummins setup. I'll have to look into that.


Thats what is in my a518


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: 727 parts for street/strip? [Re: TRENDZ] #2806874
08/09/20 02:09 PM
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Originally Posted by TRENDZ
He warned me during the original build about wear in the sealing ring area of the drum with the combination of street driving and 180 psi line pressure.

TCS has aluminum drums with a replaceable bronze "bushing" in the sealing ring area. I used one on my race car. But for a street car, I would just go with an all steel drum (for explosion safety).
If you run those sealing rings that grip the drum and wear the drum support ring grooves (on the back of the pump), wear is not a problem. But for very high pressure using teflon sealing rings, they wear the drum surface rather than the support ring grooves.


1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1
Re: 727 parts for street/strip? [Re: AndyF] #2806876
08/09/20 02:12 PM
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Originally Posted by AndyF
That is an interesting tip. I hadn't heard of the $60 Cummins setup. I'll have to look into that.
Make sure the output shaft splines have the same pressure angle as the planetary setup. They changed a few times over the years.


1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1
Re: 727 parts for street/strip? [Re: 440Jim] #2806899
08/09/20 03:11 PM
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Originally Posted by 440Jim
Originally Posted by AndyF
That is an interesting tip. I hadn't heard of the $60 Cummins setup. I'll have to look into that.
Make sure the output shaft splines have the same pressure angle as the planetary setup. They changed a few times over the years.


Yeah, that is one thing that worries me about doing a rebuild myself. I don't know all the details on which parts changed over the years and things that fit together but aren't correct could easily trip me up.

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