Transbrake vs high stall

[prostreetC-10]

I remember hearing about a TB in or around '85. My brother-in-law had a 10 sec flat '68 shuvelle that was pretty heavy. I remember the few cars that had them back then were very light and he always said it's a great way to break a bunch of sheet. His analogy was to put your car in park, rev it to 5K then put it in drive. I realize that it holds the car in first and reverse at the same time. He used to say it's an incredible shock to the drivetrain.

I did a thread a short while back about how fun my little ole 3,000 stall converter is in my Camaro since I have never had anything like that. I'm already starting to hunt for a roller valve train and plan on doing what we all do......hunt for more power. I hear some guys talking about leaving on the brake and then the same guys foot braking it. What are the pros and cons to a TB vs a super high stall? Is it important to match a TB with the right stall at the same time? Marv also wrote that simply installing one without the trans being gone through is just a waste. Will she flat destroy a stock TH400?

Just looking for some thoughts or even a killer link on the subject. Wiki can be good but is weak on this subject.

[fastwillie 696969]

http://www.hughesperformance.com/

[Super73]

In my opinion a transbrake is used for two reasons. In no specific order, the first is to get the most out of your ET, the second to help consistancy. Any sized stall can work with a brake, but you start to loose consistancy the bigger it is.

[ProStreet68SB]

http://www.extremeautomatics.com/pro...lvebodies.html

This guy designs and builds his own TBs. So he'd be the man to talk to for sure.

[hotrod 80]

Any class run on a pro tree a transbrake has an advantage over a footbrake car imo. Also with a transbrake the suspention is at rest on a footbrake the suspension is loaded . Converter needs to be per set up . A looser converter helps a footbrake bracket car .

Might look into Jakeshoe performance in Dallas . He has a manual auto 400 VB in both electric solinoid and hydraulic .
http://http://www.jakesperformance.com/Home_Page.html

[prostreetC-10]

Originally Posted by hotrod 80

Might look into Jakeshoe performance in Dallas . He has a manual auto 400 VB in both electric solinoid and hydraulic .
http://http://www.jakesperformance.com/Home_Page.html

Thanks! Actually, Jake seems to be a regular over on the Nasty Z28 forum. He gave me a couple of tips when I put the transgo kit in my TH400. Seems like a true auto guru.

[prostreetC-10]

I'm really starting to think that I'm not ready for a transbrake. I need to go out and have some fun with my currect setup first. Thanks guys!

[hotrod 80]

This is the valve body im going to try : I have a trans specilties now :

TH400 Automatic Shift Electrically Operated Transbrake
Others have said they could do it, we have actually done it!
Operates as a stock type valve body with automatic shifts and modulated line pressure. Engage manual low, hit the button and you have a transbrake.
Introductory price of $200.

[fastwillie 696969]

i love the transbrake ,i would never be able to footbrake as fast as releasing the button for TB,it seem it hooks up better too ,maybe some of these guys who use it more can tell ya

[regan wilson]

One of the most important things is to have the line lock wired in with the button. You will mash the brakes hard when you set it so it wont rock back. The reason for this is you do not want to not unload the ring and pinion or the suspension. And not to argue but when you pull to the line under power and load against the brakes and the trans brake, the suspension is loaded not rested .It may feel like doing a neutral drop when it leaves but not the same. Still though you have to have good parts to stand the abuse.

[prostreetC-10]

Originally Posted by regan wilson

The reason for this is you do not want to not unload the ring and pinion or the suspension.

This almost reads like a double negative. I just want to be sure of your info. Are you saying you want the suspension loaded or at rest? Seems like loaded would be easier on parts.

If some of you read my other NEW thread, no transbrake for me now since I wiped a cam lobe last night (or at least discovered it). I am now searching for a roller cam.

[hotrod 80]

Something else to think about , here there are 2 classes . Footbrake and electronic/pro . You cant run a transbrake in footrake class .

Sorry to hear about the cam issue .

On the suspension loaded or unloaded . I have never used a linelock with a transbrake so i cant speak there . I also dont stage with the motor rev'd up i just ease up there , courtesy stage ,, when the second buld comes on i hold the button and mat id up against the 2 step . My suspension isnt loaded . It is at rest . Im on leaf springs so i sit different them the big trucks . Not wanting to argue here either , but im game for learning something for sure . I was always told if the trans creeps it has problems with band adjustment/clutches .

Hope im not hijackin'

[regan wilson]

Originally Posted by hotrod 80

Something else to think about , here there are 2 classes . Footbrake and electronic/pro . You cant run a transbrake in footrake class .

Sorry to hear about the cam issue .

On the suspension loaded or unloaded . I have never used a linelock with a transbrake so i cant speak there . I also dont stage with the motor rev'd up i just ease up there , courtesy stage ,, when the second buld comes on i hold the button and mat id up against the 2 step . My suspension isnt loaded . It is at rest . Im on leaf springs so i sit different them the big trucks . Not wanting to argue here either , but im game for learning something for sure . I was always told if the trans creeps it has problems with band adjustment/clutches .

Hope im not hijackin'

Ok ! Ive had mine on the scales 100 times . Chassis scales that is . With a vehicle in neutral the suspension is rested . If you pull to the line in gear at an idle it isnt.

[vin63]

Originally Posted by prostreetC-10

This almost reads like a double negative. I just want to be sure of your info. Are you saying you want the suspension loaded or at rest? Seems like loaded would be easier on parts.

I run a pro style transbrake in my Super Gas/Street car for 20+ years, and the advantages are consistency and reaction time. The stall rate of the converter you choose has more to do with the power band of your engine combination. Yes, it is important to have a race-built transmission and driveline that will withstand your plans for the car if your are going to do high RPM launches with either footbrake or transbrake - also keep in mind if you have a TH400, that the shift pattern will be reverse with a transbrake.