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Old 01-30-2005, 05:24 PM
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Transbrake?

This is kind of a newbie question, I always hear about transbrakes being used in racing applications, I did a search on this site and this is how I understand it. A transbrake basicly locks up your first gear while you're revving the motor, now my questions are: 1: Can they be used in autos and manuals? 2: Is there some kind of button to activate this? 3: Wouldn't power braking basicly accomplish the same thing?

Thanks in advance for answering this.

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Old 01-30-2005, 05:48 PM
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Kinda tough to lock a manual trans in low and reverse at the same time with the clutch engaged...
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Old 01-30-2005, 05:51 PM
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So you rev in reverse but the brake keeps you from launching??
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Old 01-30-2005, 06:08 PM
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A trans brake selects low and reverse in the automatic trans. This locks up the trans internally. When you let the button go, it releases reverse and you get the effect of "Dumping" the clutch on a stick car. This "Shocks" the rear suspension. Some cars launch better this way. It depends on how the chassis is set up... Watch an old MoPar, say around 69-70. Then watch the same year Chevelle leave the line. The MoPar Hunches up and preloads the chassis, A Chevelle loads too but as they leave the line the MoPar really works the suspension. If you put a Transbrake on that same Chevelle it will explode out of the hole like a stick car, shocking the suspension and trying to force the rims into the pavement..
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Old 01-30-2005, 06:29 PM
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Thanks bob that answered my question.
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Old 02-12-2005, 01:38 AM
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I was thinking about putting in a transbrake in my Chevelle but decided against it. It is really used for a dedicated track car as your tranny will get cooked driving your car on the highway or daily driver. Also you will need to reverse shift 1st, 2nd and so on, and that is on an automatic.

Instead of using a transbrake, I use a linelock at the line.
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Old 02-12-2005, 03:09 PM
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linelock?

A tranny brake can be used in conjunction with a rev limiter and a delay box. The rev limiter holds the rpm of the engine about 200 rpm below the stall point. The delay box, delays the tranny from popping out of reverse for a predetermined amount of time. It is set by the driver to react to the xmas tree at the first yellow light. The delay box, at the same time as releasing reverse disconnects the rev limiter so the motor can rev up to its redline limiter.

Line lock is used in the burn out box. It keeps the front brakes locked. So the rear wheels can spin without burning off the rear brake shoes.

Using the foot brake keeps all 4 wheels locked up. The line lock only locks up the front brakes and the rear wheels might push you through the red light. Thus, losing the race.
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Also you will need to reverse shift 1st, 2nd and so on
A B&M gate shifter solves that problem. If you feed the cable from back to front. You use the stock gate. If you want to feed the cable front to back. Which is easier. You have to buy the optional reverse gate.
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Last edited by bracketeer; 02-12-2005 at 04:44 PM.
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