line lock

[Trevor]

what does a line lock do?

[slw240sx]

if its what i think your talking about its a system that alows you to keep the rear disk brakes from working and locking up the fron disk to allow for a brake stand/burn out.....

[SSDwellah]

Doesn't it have something to do with auto trannies also? Like line conditioners and such?

[big jon's 240]

A line lock is for drag racing. For burnouts and heating up the tires. All it does is lock up the front brakes (for RWD cars).

[slw240sx]

yes locks up the front wheels but doesnt it also keep the fluid from compressing the rear brakes so that your wheels wont lock up back there i read an article on them long ago but i forget the details about it

[C-Kwik]

Line locks are also used for launching. With the front brakes engaged, you can load up the transmission a little bit to reduce the drivetrain shock and also not have to work about rolling through the staging lights before the green.