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Re: 727 help with 900 # torque
[Re: procharged 484]
#1049474
08/08/11 08:17 PM
08/08/11 08:17 PM
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Joined: Sep 2005
Posts: 1,328
St. Louis, MO
mopardamo
pro stock
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pro stock
Joined: Sep 2005
Posts: 1,328
St. Louis, MO
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Hello,
Give John a call over at Cope Racing Transmissions. You can also PM him his screen name is CRT.
Damon
Last edited by mopardamo; 08/08/11 08:42 PM.
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Re: 727 help with 900 # torque
[Re: maximum entropy]
#1049477
08/08/11 08:29 PM
08/08/11 08:29 PM
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Joined: Jan 2003
Posts: 74,974
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,974
U.S.S.A.
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Quote:
Quote:
Hello,
Give John a call over at Cope Racing Transmissions.
Damon
i second that notion.  
Third here , it's going to be a reverse manual VB trans will billet parts .
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Re: 727 help with 900 # torque
[Re: Cab_Burge]
#1049482
08/09/11 01:46 AM
08/09/11 01:46 AM
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Joined: Nov 2006
Posts: 1,090
north cakalaky
instigator
super stock
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super stock
Joined: Nov 2006
Posts: 1,090
north cakalaky
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I've made over 900 lbs of torque on a chasis dyno and in 5 passes my 727 was toast....though I am hoping I have a few fixes for it soon!
65 Barracuda
All aluminum Indy HEMI with some boost!
COMING TO A TRACK NEAR YOU!
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Re: 727 help with 900 # torque
[Re: topbrent]
#1049484
08/09/11 02:33 AM
08/09/11 02:33 AM
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Joined: Jan 2003
Posts: 74,974
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,974
U.S.S.A.
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Quote:
Not the answer the OP is probably looking for, but at that level of power, 900 ft/lbs, ditch the 727 grenade and move to a PowerGlide or prepped Turbo 400.
At 900 ft/lbs you should be able to accelerate just fine without the added gear reduction.
You don't think a powerglide or a turbo 400 won't blow up ?
Cummins powered rams putting out over 1500 ft/lbs use a 727 based OD trans and don't blow up when built properly .
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Re: 727 help with 900 # torque
[Re: JohnRR]
#1049485
08/09/11 04:16 AM
08/09/11 04:16 AM
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Joined: Jan 2003
Posts: 2,697
Renton Wa
topfueldart
master
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master
Joined: Jan 2003
Posts: 2,697
Renton Wa
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Quote:
You don't think a powerglide or a turbo 400 won't blow up ?
Cummins powered rams putting out over 1500 ft/lbs use a 727 based OD trans and don't blow up when built properly .
11.48 @ 120 with a 1.80 60' 318, stock 1.88 heads, stock 904, Pump Gas, 13 lbs of boost.
9.94 @ 134, 318 on pump gas, 14 lbs w/ Eddies, transbrake 727, 3600 lbs, 3.54 gear and 28's.
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Re: 727 help with 900 # torque
[Re: topfueldart]
#1049487
08/09/11 08:57 AM
08/09/11 08:57 AM
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Joined: Oct 2006
Posts: 4,590
Indy
joshking440
Lunch is on me!
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Lunch is on me!
Joined: Oct 2006
Posts: 4,590
Indy
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Ok, not to be negative. But I wouldn't buy a 727 for that application, and I know from experience
I had the crt double throwdown 727 in my car. Billet planataries, all the good stuff, second pass under anykind of boost and I broke the input shaft
I know I know, they make billet shafts, but look at the numbers, I spent 4500 on a 727 that I was told not to buy, even by the guy that built it. But we thought we would try.
For 6000 you can buy a turbo 400 that will take more than you can make.
Converter selection is another problem. With out a 1" midplate you can not get enough convertor height to really work well.
As far as promod cars with 727s. I live in indy...and there are no promods with 727s
I have never seen that car make a full pass, and it weighs like 2300 lbs so that's not even close as a comparison.
My car makes around that same torque number and a 727 will not hold up. Its not bashing, its not me being negative, its just the reality and if I can help one per make the right choice I will
ust the reality and if I can help one per make the right choice I will
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Re: 727 help with 900 # torque
[Re: JohnRR]
#1049488
08/09/11 09:05 AM
08/09/11 09:05 AM
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Joined: Oct 2006
Posts: 4,590
Indy
joshking440
Lunch is on me!
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Lunch is on me!
Joined: Oct 2006
Posts: 4,590
Indy
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Quote:
Quote:
Not the answer the OP is probably looking for, but at that level of power, 900 ft/lbs, ditch the 727 grenade and move to a PowerGlide or prepped Turbo 400.
At 900 ft/lbs you should be able to accelerate just fine without the added gear reduction.
You don't think a powerglide or a turbo 400 won't blow up ?
Cummins powered rams putting out over 1500 ft/lbs use a 727 based OD trans and don't blow up when built properly .
And top fuel cars make 8000 hp with a hemi based engine....
I know for a fact the fastest drag radial cars in the country don't fall back on having a 727 built. Kevin Fiscus made 67 passes on a t400, and when they took it apart, it looked great.
FYI, kevins small block twin turbo mustang has been 4.33 at 185mph on a drag radial at 3300 lbs.
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Re: 727 help with 900 # torque
[Re: joshking440]
#1049489
08/09/11 09:11 AM
08/09/11 09:11 AM
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Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
jyrki
master
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master
Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
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At least John is honest! When I asked him about a TF when building our car (around 1500 ft-lb) he didn't recommend one, and if we still wanted just wish us good luck!
Plynouth VIP '67 TT IC EFI
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Re: 727 help with 900 # torque
[Re: jyrki]
#1049490
08/09/11 09:13 AM
08/09/11 09:13 AM
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Joined: Oct 2006
Posts: 4,590
Indy
joshking440
Lunch is on me!
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Lunch is on me!
Joined: Oct 2006
Posts: 4,590
Indy
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Quote:
At least John is honest! When I asked him about a TF when building our car (around 1500 ft-lb) he didn't recommend one, and if we still wanted just wish us good luck!
No question about it. I tried to talk him into building my chevy trans, but he just couldn't do it. I will never use anyone else to build my 727 stuff, no question about it. John Cope is the man.
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Re: 727 help with 900 # torque
[Re: jyrki]
#1049491
08/09/11 09:20 AM
08/09/11 09:20 AM
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Joined: Sep 2003
Posts: 2,175
Duloc
The Shadow
top fuel
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top fuel
Joined: Sep 2003
Posts: 2,175
Duloc
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I have to agree with Josh on this one I have a procharged hemi making 1k tq in a 4k ride and have been going through transmission he11. I know the diesels are doing it but save yourself the money and headaches. 
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Re: 727 help with 900 # torque
[Re: The Shadow]
#1049492
08/09/11 09:51 AM
08/09/11 09:51 AM
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Joined: Mar 2003
Posts: 6,334
Heaven
EvilB1Dart
master
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master
Joined: Mar 2003
Posts: 6,334
Heaven
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Totally agree with Josh. 727 is going to struggle with being dependable with that much torque and probably a fairly heavy street/strip car. I'm sure it can be done if you right the right guy/parts to build it, but I don't think I'd try it myself, but thats just me. I know Bird's 727 is a pretty good one IIRC. Ask him, just can't remember what his username is on here.
For TH400 contact Hutch in Canada, Dave Klaput in IL or Rossler in Ohio. Three of the best in the TH400 business. STEFF had a Hutch TH400 in his Challenger.
For a glide go with the same people I mentioned above. Couple guys down south build some nice Glides, but can't remember their names.
For a converter; Chance, Ultimate, Pro Torque or PTC. You can't go wrong if data is present for one to be built to specs.
Years ago I directed Tony Russo (n20mstr) to a TH400 for his Dart and I don't think I've ever read where he had an issue with that trans. His car makes real good power/torque and its HEAVY! And he didn't have to spend "triple throwdown" money either. IIRC he went with Rossler cause logistically it was simplier versus buying one from Hutch.
Wes
"Any fool can know. The point is to understand"
- A. Einstein
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...pro torque makes great boosted,charged or nos converters
