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A tip for cars with Automatic transmissions
The line lock is a necessary evil in drag racing for most door cars. Without it, doing your burnout is next to impossible. I never was a fan of the conventional way to hookup a line lock, were you hold down the brake pedal and activate the line lock solenoid and release the pedal. This method is all well and good but what would happen if you were to have the system fail for some reason? Hmmm..... But after watching a fellow racer plow his pride and joy into the back of another car, I didn’t like the idea of that so I started to look around for a better way to do the same task and came across a safer alternative. OK, so here is another way to do this that is much safer. You mount your line lock solenoid to the rear brake system. Backwards flow wise compared to the direction one would use for the other method. So now what do you do to make it work you ask? You hold the line lock button down before you apply the brakes. Since we installed the solenoid backwards we are using it to isolate the two systems rather than hold pressure. This allows you to engage the solenoid and the effect of the brake petal are ignored on the rear brakes. This means that your foot is on the brake and you can feel/control what is going on. And if the system were to fail, you would only be introducing your rear brakes back to the system. This may be rather clumsy at first, especially for those of you that have used the old method for so many years. It is definitely worth looking into!