- Local time
- 12:52 PM
- Joined
- Jan 29, 2018
- Messages
- 21,421
- Reaction score
- 75,564
- Location
- Midland Ontario, Canada
How did they stage in the first place with the wheels locked?
If you’re asking me. I need control of my front brakes, because, my line lock valve is activated so that there’s no fluid pressure in the rear brake line. You releasing your button is the same as me releasing my brake pedal. I get off the throttle as I roll out of the water too, like most do. I start in second, immediately to third about a 4 second burnout.Why do you need control of the front brakes during a burnout? Set the line lock. Hit the throttle. When it's spinning release the button. As it rolls out of the water lift off the throttle (your converter will thank you). My burnouts are recorded on the playback tach. Usually 3.4-3.6 seconds.
Doug
Yikes, I bet there’s a good chance the driver still had the button depressed for some reason.I have seen a car leave with the front wheels up and when it lands the front wheels were still locked. I've seen this a couple of times in the past. Driver error or mechanical failure?
How did they stage in the first place with the wheels locked?
I could see that with a standard transmission... forgot to take their finger off the button.My guess is they're using line lock after staging so they don't roll. Idk
Thanks Rem, fair enough, it’s on the list for alteration during engine refresh, easy to do,Technically , they're not allowed to be on the rear in competition. But if tech never looks, and you have no enemies, you are free to do as you wish.
The reason for the rule is, if the rear locks up for any reason, you're toast.View attachment 1400997
Yes, roll control on to hold the car while he’s on the clutch and throttle.I could see that with a standard transmission... forgot to take their finger off the button.
I have seen a car leave with the front wheels up and when it lands the front wheels were still locked. I've seen this a couple of times in the past. Driver error or mechanical failure?
It allows me to do a rolling John Force burn out & put some rubber downMost likely driver error. I still don't understand why a line lock on the rear wheels. I'm an old school guy, but I don't get it. I know what my front wheel line lock did for me for over 20 years, heat the back tires, what am I missing?
I use the same button for the line lock as I do the trans brake. I have a selector toggle switch that has a center off position. I use that off position while street driving due to “the button” being right on top of the shifter handle lolYears ago I left with my hand on the line lock button. One front tire was roling, the other was not. Had no idea at the time why the car was pulling to the left. Decided to lift and moved my right hand (which had been resting on the button) to the steering wheel. It made a left NOW! at 117. Nearly put it on the right side tires only. The button now has a fail safe and can only activate once w/o being reset. Be safe guys. Just cause it works doesn't mean it can't be improved.
Doug
Yes me too, and my car has it like that. It was like that and I never changed it. It’s got to be for doing john force smoke shows. In my other cars I have the line lock in the front. Having said that, it works great in the rear. Just a good old brake torque in the burnout box, roll out and off the button.Most likely driver error. I still don't understand why a line lock on the rear wheels. I'm an old school guy, but I don't get it. I know what my front wheel line lock did for me for over 20 years, heat the back tires, what am I missing?
Works for an automatic, but not so much for a manualI always thought the line lock was used as a roll stop with a manual trans or so you weren't working against the rear brakes when doing a burnout in an automatic, especially if you had rear disks. I totally see how installing it backwards on the rear line allows you to feather the front brakes while the rears stay off.
Why wouldn’t you just run a trans brake?Line lock- on rear brakes?
Wouldn't you want it also on the front brakes along with a 12vdc timer to be able to leave like a transbrake/delay box car??????????? Especially in a footbrake class.
Asking for a friend.
View attachment 1401745
Foot brake only class.Why wouldn’t you just run a trans brake?
Maybe cause NHRA doesn't permit four wheel line locks?Line lock- on rear brakes?
Wouldn't you want it also on the front brakes along with a 12vdc timer to be able to leave like a transbrake/delay box car??????????? Especially in a footbrake class.
Asking for a friend.
View attachment 1401745