Re: Stock trans limit?
[Re: Shatar4]
#2337814
07/16/17 03:12 PM
07/16/17 03:12 PM
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Joined: May 2003
Posts: 13,202 aZLiViN
J_BODY
I Live Here
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I Live Here
Joined: May 2003
Posts: 13,202
aZLiViN
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My "spare" 727 for my old Mirada running a RB 498 was nothing special. Reverse manual valve body. Foot braked it into the 10's. I had enough parts to throw it together as a backup plan. Ended up selling it after getting rid of the car. So I'm saying "yes" it's capable. now... would I run it with a stock front drum. NOPE! Are 727's "bulletproof"? NOPE! I currently have a 727 in the duster behind our small block. it's been out of the car 4 times in the last two years with odd and not so odd breakage. Most recent I broke the lugs on the pump gear. Hoping it will last now with aftermarket large lug gear, but I'm piecing together a 904 because I like torture
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Re: Stock trans limit?
[Re: Shatar4]
#2337858
07/16/17 04:44 PM
07/16/17 04:44 PM
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Joined: Oct 2007
Posts: 4,213 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,213
New York
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Any foreign material in the filter?
Boffin Emeritus
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Re: Stock trans limit?
[Re: Shatar4]
#2337927
07/16/17 07:23 PM
07/16/17 07:23 PM
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Joined: Aug 2003
Posts: 43,307 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,307
Bend,OR USA
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It sounds like it, the shifter or valve body selector, is not in each gear properly Take the pan back off and put the shifter in neutral and then remove the shifter selector from the arm on the valve body and watch the manual valve to see if it moves when you lift the shifter cable clevis or shifter bracket off the selector arm, if it moves you need to adjust the shift linkage so it doesn't move when removed in neutral, first, second and high gear Let us know what you find out How good is your converter? What brand and foot and flash stall rating RPM? Good look on this
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Stock trans limit?
[Re: Shatar4]
#2337947
07/16/17 07:54 PM
07/16/17 07:54 PM
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Joined: Jan 2003
Posts: 25,995 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,995
Rio Linda, CA
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Hit the gas motor Rome (sic) go up and then it just slams into gear Rear clutch problem....delayed engagement due to leakage. (rings/seals)
The INTERNET, the MISinformation superhighway
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Re: Stock trans limit?
[Re: John_Kunkel]
#2337968
07/16/17 08:30 PM
07/16/17 08:30 PM
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Joined: Dec 2013
Posts: 4,704 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,704
Wichita
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I use a relatively stock one behind my 505.
I rebuilt it using better clutches, removed the governor, used a FWD pattern mvb and put the amount of springs in the front drum that Turbo action recommended. Other than that, it is pretty much stock.
It gets regular beatings on the track and street but I never do a 1st gear burnout, either!
Make sure you use a bronze thrust washer as most kits come with the fiber one and mine likes to eat those!
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: Stock trans limit?
[Re: Shatar4]
#2338082
07/16/17 11:14 PM
07/16/17 11:14 PM
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Joined: Oct 2009
Posts: 1,267 North, Alabama
D-50
pro stock
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pro stock
Joined: Oct 2009
Posts: 1,267
North, Alabama
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I am not running a big motor like you have but I have been running a pretty much stock 727 with a manual valve body behind my small block that makes well over 600 hp. I have been running it for 5 years with no issues.
1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
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Re: Stock trans limit?
[Re: John_Kunkel]
#2338089
07/16/17 11:27 PM
07/16/17 11:27 PM
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Joined: Dec 2008
Posts: 35 IN
formerratman
member
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member
Joined: Dec 2008
Posts: 35
IN
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Hit the gas motor Rome (sic) go up and then it just slams into gear Rear clutch problem....delayed engagement due to leakage. (rings/seals) ^ This.
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Re: Stock trans limit?
[Re: Shatar4]
#2338251
07/17/17 11:05 AM
07/17/17 11:05 AM
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Joined: Jan 2003
Posts: 13,402 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,402
Marion, South Carolina [><]
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I ran a pretty much stock 727 for about 2 years in my cuda running mid 9s at 3800 lbs. It had a manual valve body, deep pan, and a bolt in sprag...that's it. Then the drum exploded and disintegrated the transmission.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Stock trans limit?
[Re: 383man]
#2338718
07/17/17 11:27 PM
07/17/17 11:27 PM
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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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Your builder messed up when he built the trans.. as John said the issue will most likely be a ring or a seal is bad.. a pressure test should show it.. I run a totally stock tran in my race car with a trans brake.. been in there about 10 years with 2 refreshens .. a light car is easy on parts
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Re: Stock trans limit?
[Re: GY3]
#2338750
07/17/17 11:59 PM
07/17/17 11:59 PM
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Joined: Dec 2006
Posts: 3,396 Pa
Hot 340
master
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master
Joined: Dec 2006
Posts: 3,396
Pa
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I use a relatively stock one behind my 505.
I rebuilt it using better clutches, removed the governor, used a FWD pattern mvb and put the amount of springs in the front drum that Turbo action recommended. Other than that, it is pretty much stock.
It gets regular beatings on the track and street but I never do a 1st gear burnout, either!
Make sure you use a bronze thrust washer as most kits come with the fiber one and mine likes to eat those! What does removing the governor do? (I am tranny stupid )
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