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Question about Trans Brake #2330310 07/02/17 07:12 PM 07/02/17 07:12 PM
Joined: Sep 2007 Posts: 258 Stockholm, Sweden T TomsCharger70 OP enthusiast
TomsCharger70 OP enthusiast T Joined: Sep 2007 Posts: 258 Stockholm, Sweden	Here is my question... -Would a 727 survive leaving on a trans brake at about 2000-3000rpm when the car weighs 3902Lbs. My trans is a Cope built 727 with all options except a trans brake valvebody... and.. -What Trans brake valve body would you recommend??? Thanks! /Tom

Re: Question about Trans Brake [Re: TomsCharger70] #2330349 07/02/17 08:50 PM 07/02/17 08:50 PM
Joined: May 2003 Posts: 13,189 aZLiViN J J_BODY I Live Here
J_BODY I Live Here J Joined: May 2003 Posts: 13,189 aZLiViN	I've always ran Griners, but currently have a Pro Trans clean N piece. Cope makes brakes now too. Is your torque converter built for T-brake usage? what rear end, and driveline?

Re: Question about Trans Brake [Re: TomsCharger70] #2330353 07/02/17 08:56 PM 07/02/17 08:56 PM
Joined: May 2005 Posts: 1,030 ohio 6 67mprfan super stock
67mprfan super stock 6 Joined: May 2005 Posts: 1,030 ohio	Is the front pump drilled 71 demon stock stroke 440/indy ez-1 running 10.10 @ 132.14 mph in the 1/4 and 6.36 @ 107.46 mph in the 1/8 not in the same weekend but It did it then I sold it. 67 Belvedere that worked it's way in the 10's

Re: Question about Trans Brake [Re: TomsCharger70] #2330371 07/02/17 09:33 PM 07/02/17 09:33 PM
Joined: May 2003 Posts: 13,189 aZLiViN J J_BODY I Live Here
J_BODY I Live Here J Joined: May 2003 Posts: 13,189 aZLiViN	...and what axles? I'd want 35 spline for sure.

Re: Question about Trans Brake [Re: J_BODY] #2330657 07/03/17 01:15 PM 07/03/17 01:15 PM
Joined: Sep 2007 Posts: 258 Stockholm, Sweden T TomsCharger70 OP enthusiast
TomsCharger70 OP enthusiast T Joined: Sep 2007 Posts: 258 Stockholm, Sweden	Originally Posted By J_BODY I've always ran Griners, but currently have a Pro Trans clean N piece. Cope makes brakes now too. Is your torque converter built for T-brake usage? what rear end, and driveline? Originally Posted By J_BODY ...and what axles? I'd want 35 spline for sure. -The converter is a brand new one from Ultimate, and no, I did not spec it out for transbrake use... Stall is +5000rpm. -Rear axel is a Dana 60 (Dr. Diff/Strange). Detroit Locker, 4.56 gears, 35 spline axels, Chromo 3,5" drive shaft, 1350 U-joints.. Originally Posted By 67mprfan Is the front pump drilled -No idea??? /Tom Last edited by TomsCharger70; 07/03/17 01:16 PM.

Re: Question about Trans Brake [Re: TomsCharger70] #2330726 07/03/17 03:35 PM 07/03/17 03:35 PM
Joined: Aug 2003 Posts: 43,161 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,161 Bend,OR USA	Call or contact the converter company and ask them if that converter will be okay in front of a trans. brake Some of the better drag racing converters made years ago can't be used with a trans. brake now Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Question about Trans Brake [Re: TomsCharger70] #2330736 07/03/17 03:58 PM 07/03/17 03:58 PM
Joined: Dec 2005 Posts: 11,552 Fulton County, PA C CMcAllister Mr. Helpful
CMcAllister Mr. Helpful C Joined: Dec 2005 Posts: 11,552 Fulton County, PA	Depends on power and engine RPM level, how quick it can 60', quality of track prep and tires, quality of components the trans is built with, amount of maintenance you expect to need to perform. Your combination may be familiar with others here but I don't know what it is. Sorry if I'm the only one here who doesn't know. If the results don't match the theory, change the theory.

Re: Question about Trans Brake [Re: TomsCharger70] #2330766 07/03/17 04:44 PM 07/03/17 04:44 PM
Joined: Jan 2003 Posts: 684 St. Charles, MO. S Slingshot383 mopar
Slingshot383 mopar S Joined: Jan 2003 Posts: 684 St. Charles, MO.	It's really hard on the tranny to use a trans brake below 3000 rpm. Best place to start is about 400 rpm below stall speed. 1994 Undercover Chassis 125" altered stack injected big block, soon blown and injected Member of The Torque and Recoil Club

Re: Question about Trans Brake [Re: TomsCharger70] #2330772 07/03/17 05:05 PM 07/03/17 05:05 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Move the vent to the rear and plug the current trans vent

Re: Question about Trans Brake [Re: TomsCharger70] #2330803 07/03/17 06:13 PM 07/03/17 06:13 PM
Joined: Oct 2010 Posts: 2,407 Ambridge, Pa. R rickraw top fuel
rickraw top fuel R Joined: Oct 2010 Posts: 2,407 Ambridge, Pa.	Converter should have a steel stator. I had an aluminum one discintegrate, wiped out the converter.

Re: Question about Trans Brake [Re: TomsCharger70] #2330953 07/03/17 07:44 PM 07/03/17 07:44 PM
Joined: Sep 2007 Posts: 258 Stockholm, Sweden T TomsCharger70 OP enthusiast
TomsCharger70 OP enthusiast T Joined: Sep 2007 Posts: 258 Stockholm, Sweden	-Hmm, reading the responses it seems that a trans brake in my case is more a headache.... Ill just continue and foot brake this combo.... -Thank you for al the posts!!! CMcAllister*** The combo is nothing that exotic. A stroker 493cid bottom end. Indy "Little" EZ 295 heads, roller cam, 11.0 comp., high rise intake, Dominator carb. 770Hp@6900Rpm/680Lbs/ft@5300Rpm... Still having some issues with getting the car off the line... Also I guess with a transbrake it would become even harder.... My "home" track does not have the track prep it used to... Any way.. -Thanks again! /Tom

Re: Question about Trans Brake [Re: TomsCharger70] #2331805 07/05/17 10:39 AM 07/05/17 10:39 AM
Joined: Jan 2003 Posts: 13,363 Marion, South Carolina [><] an8sec70cuda I Live Here
an8sec70cuda I Live Here Joined: Jan 2003 Posts: 13,363 Marion, South Carolina [><]	I'd call Ultimate and see what they say about using your converter w/ a brake. If they say no problem, I'd do it. 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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