Line Lock, front or rear, preference? - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

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  • 2 Post By dozerhand
  • 2 Post By Jeffs68ss
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post #1 of 10 (permalink) Old Jun 12th, 19, 1:52 PM Thread Starter
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Mike
 
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Line Lock, front or rear, preference?

I wanted to put a line lock on. With a manual tranny, my thinking is that you'd want them on the rear? If you lock the line, so brake pressure can't be applied to the rear brakes, they won't heat up. And all the pressure goes to the front to keep you positioned. You can also gradually release the brake and move out.
And one concern about the front, if I apply the break, lock the line, dump the clutch, is that a lot of stress on the driveline? or no different?
What line did you put yours with a standard?

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post #2 of 10 (permalink) Old Jun 12th, 19, 1:59 PM
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David
 
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Re: Line Lock, front or rear, preference?

Front brake line, always. JMHO

later, dozer
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post #3 of 10 (permalink) Old Jun 12th, 19, 3:05 PM
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Harold
 
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Re: Line Lock, front or rear, preference?

X2 front.... and no gradual release -on or off , its a solenoid
there is an industrial brake lever lock for fork lifts /tractors /etc that might do as you suggest
dumping the clutch is stress no matter what.....just saying....

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post #4 of 10 (permalink) Old Jun 12th, 19, 3:19 PM Thread Starter
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Mike
 
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Re: Line Lock, front or rear, preference?

So guys that are staging and gradually roll out, are simply disengaging the line lock?

sorry for the rookie question

67 Chevelle 454, M21
Gen IV 454 (out of C30 ), 390 heads 1.88/2.19 valves by Vortecpro, with ISKY Hyd Roller cam (at 050 218 int./228 exh, lift 530 int./552 exh.), RPM performer intake, Fitech 600HP, Dougs headers, and M21, Gear Vendors OD, 3.73's, UMI Suspension, Viking coilovers.
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post #5 of 10 (permalink) Old Jun 13th, 19, 7:54 AM
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Ed
 
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Re: Line Lock, front or rear, preference?

I was under the impression that line lock was only for burnouts, not for staging/launching. Obviously I don't have one, and never raced enough to warrant looking into one.

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post #6 of 10 (permalink) Old Jun 13th, 19, 8:41 AM
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Gene
 
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Re: Line Lock, front or rear, preference?

It can be for both. I removed mine, but its to LOCK the front brakes after you release the brake pedal; you engage the solenoid so the pressure int he front lines never drops until you release the button. I used it once to stage at a local track with a slight "dip" right at the line; if you deep staged w/o a lock on, it would roll out and "bulb". Had the button temporarily mounted to the stick handle. You can buy Hurst handles with integral buttons if need be.

I thought of keeping it on for those super long burnouts; but big meat redlines from Diamondback Tire are approaching $220 a pop. Slicks are cheaper. Rat will smoke them at will anyhow.

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post #7 of 10 (permalink) Old Jun 13th, 19, 8:44 AM
Jeff
 
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Re: Line Lock, front or rear, preference?

Line loc works great when you are at a stop light on a hill.
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post #8 of 10 (permalink) Old Jun 13th, 19, 8:54 AM
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Gene
 
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Re: Line Lock, front or rear, preference?

In fact Jeff, I believe that WAS their original purpose as designed!

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post #9 of 10 (permalink) Old Jun 13th, 19, 9:18 AM
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Re: Line Lock, front or rear, preference?

Quote:
Originally Posted by mdelgado View Post
I wanted to put a line lock on. With a manual tranny, my thinking is that you'd want them on the rear? If you lock the line, so brake pressure can't be applied to the rear brakes, they won't heat up. And all the pressure goes to the front to keep you positioned. You can also gradually release the brake and move out.
And one concern about the front, if I apply the break, lock the line, dump the clutch, is that a lot of stress on the driveline? or no different?
What line did you put yours with a standard?
Any time you do something like that it puts a lot of stress on your vehicle and you risk damage.
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post #10 of 10 (permalink) Old Jun 13th, 19, 10:16 AM
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Re: Line Lock, front or rear, preference?

Line lock always on the front wheels. I like to stage the car ON the line lock. Step lightly on the brake with the prestage bulb lit. Hit the button. Now you can slip the clutch to stage and as soon as you push the clutch in the car stops. NO shuffling of feet back and forth. Also, this keeps the car stationary. All of the backlash was taken out of the drivetrain in the forward motion. Without the linelock, the rear is allowed to unload and then slap all of the parts together when the clutch is released.

I used the line lock in my car staging on the transbrake with an automatic as well.
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