Line-Lock not holding?

[RDF]

Hey all,

Goody and I installed line-lock on my car a couple of weekends ago...I just finished it up this past weekend (needed another block-off plug for the unit) and took it out for a spin.....a little background on my car, 360 bored .030, mild cam, eddie performer intake, eddie 600cfm carb, new plugs, accel wires, MSD 6al, 904 auto with 3.91s......all that and the car can't do a brake stand.....so I was hoping the line-lock would help a little....but much to my dissapointment, it's not.....I hear the cylinder lock into place and feel the pedal rise, but as I stomp on the throttle, it front wheel begin to give out and it's more of an embarrassment that a brake stand.....SO, the question becomes do you think the line-lock is not holding it because it's faulty or does my car need some tuning....I'll have to admit, the carb does feel like it needs a good overhaulin', but I'm no master carb guy, so I don't know if that's the real issue.  GoodmanJR gave me an ad to call for a shop that does some tuning on race cars/muscle cars, so I may call them tomorrow to see, but I figure I'd ask the residents here first, see what you all think......

Ideas? Questions? 

[422STROKER]

Tune for sure, but there seems to be a problem with the line lock.

I used to do some killer brake stands in my 318 2bbl barracuda.

Maybe my rear drums might have been loosened up...

Tom

[GoodysGotaCuda]

With that setup bob you Hit/hold the line lock THEN hit the brakes and hold them. What you are doing is blocking brake fluid travel to the rear brakes. So if what you are doing is holding the brakes, then hitting the button, then letting off the brakes....basically you just locked your rear brakes, and have no pressure on the front calipers at all. Which if you can even break the tires loose, its going to roll.

Like i said you need to flip the switch (basically cuts out the rear brakes), then apply the front brakes (brake pedal) THEN hit the throttle...That gives you the ability to let up on the brake pedal some and do some nasty rolling burnouts.

...itll work...If you still have issues, head on over this weekend, i'll video 

[SalTy71CuDa]

  What kind of brakes disk/drum, drum/drum, disk/disk, booster, manual?  I remember back when I first installed my linelock since I was using drums all the way around it took all I had to to get the lock to hold, and even then it didnt want to hold sometimes. Try pumping the snot out of the brakes hold then flip the switch. Thats what I used to have to do, worked 95% of the time. 
   

[Changin Gears]

Is your line lock installed on the front or rear brakes?  

[GoodysGotaCuda]

Rear brakes.

[RDF]

  What kind of brakes disk/drum, drum/drum, disk/disk, booster, manual?  I remember back when I first installed my linelock since I was using drums all the way around it took all I had to to get the lock to hold, and even then it didnt want to hold sometimes. Try pumping the snot out of the brakes hold then flip the switch. Thats what I used to have to do, worked 95% of the time. 
   

Front disk, rear drums, power.....

With that setup bob you Hit/hold the line lock THEN hit the brakes and hold them. What you are doing is blocking brake fluid travel to the rear brakes. So if what you are doing is holding the brakes, then hitting the button, then letting off the brakes....basically you just locked your rear brakes, and have no pressure on the front calipers at all. Which if you can even break the tires loose, its going to roll.

Like i said you need to flip the switch (basically cuts out the rear brakes), then apply the front brakes (brake pedal) THEN hit the throttle...That gives you the ability to let up on the brake pedal some and do some nasty rolling burnouts.

...itll work...If you still have issues, head on over this weekend, i'll video 

I think that's what I'm doing, but then again, I've been wrong before....   I will give it a go tomorrow or Thursday to see if I can get it to work for me as you said Goody...This weekend may be out for me, wife's got a funeral in Ocala on Saturday and Sunday is another b-day party that my kids got invited to.....

[GoodysGotaCuda]

Let me know Bob, don't forget i'm right down the street from your job too M-F. Good place for burnouts back there too!!

[Chryco Psycho]

sounds like the car needs to be tuned , try adding more advance at idle & disconnect the vacuum advance , this will generally wake things up

[RDF]

sounds like the car needs to be tuned , try adding more advance at idle & disconnect the vacuum advance , this will generally wake things up

If I disconnect the vacuum advance, won't the trans. shift different? 

[GoodysGotaCuda]

Trans runs straight of linkage, not vacuum. I'm not sure why the vac advance would change the tune, but we do need to get that carb apart some and check the timing as well.

[RDF]

Trans runs straight of linkage, not vacuum. I'm not sure why the vac advance would change the tune, but we do need to get that carb apart some and check the timing as well.

The only reason I said that about the shifting is because last winter my car wouldn't down shift from 2nd to 1st and when I moved my vacuum advance from 1 post on my carb to another, it seemed to make all the difference in the world, so I left it like that since. 

[GoodysGotaCuda]

You gotta GM or Ford trans behind that 360?! lol

[nivvy]

Goody has 9.5 dynamic converter which helps lessen the affect of the converter grabbing and pushing through the brakes at low rpm ....... id be willing to bet you have a stock type converter maybe a little higher than stock and its grabbing sooner hence pushing through the linelock... getting up higher in the powerband (rpm's)will help the tires to break loose easier and the linelock hold.....  

[RDF]

Like i said you need to flip the switch (basically cuts out the rear brakes), then apply the front brakes (brake pedal) THEN hit the throttle...That gives you the ability to let up on the brake pedal some and do some nasty rolling burnouts.

This worked GOOOOOOD last night  .....I think my main problem was I was coming to a stop (with the brakes on obvisously), then flipping the switch on with the brakes still applied.  Mike, if you take a right out of your school and go straight through the stop sign, you'll see a nice posi slab about 1/2 way down......hehehe

Now I get a good burnout, but still getting movement in 2nd gear.  A lot of it may be that I'm just not hammering it as hard as I should, mainly b/c I'm worried about over reving my motor.....

I still agree with most people on here that my carb could use some tuning at the least.