brakes Brake System Question

[13]

Hey guys, Im pluggin away on my M20 swap and I've got a few other goodies im tossing on during the swap.

 

One is a Hurst LineLoc, and when I decided it was about time to start tossing it on soon. I went out and got a few tools I needed and than I realized something. We have 2 lines (atleast on non Ti/i cars) running to each front brake. Usually for a line lock you would your Tee the drivers and passenger side together going into the line lock and run them back seperately after the line lock.

 

Now... This is the kicker, how the heck should I go about doing this. Should I tie them all together in a larger size, run them through the linelock, than have them split all apart after the linelock...

 

Another idea I read online was this dude who suggested you plug one outlet for each side, upsize the two remaining lines by drilling and tapping to a larger size, than run the two remaining lines together for the linelock, than have them come out and back to there original state. Doing this I would have to wonder if it will change the feel of the pedal by blocking those two outlets...

 

I havent yet had too much time to get a real good look but I dont think I can run my line lock for the fronts before that master cylinder either.

 

The next question is running a Hydraulic Handbrake, but im pretty sure I have that sorted out already.

 

Thanks guys

[dbmw2002]

Wow, why mess with a good system? Go tii or 320 brakes and keep her near as stock as possible, shes light tight and right stock, dont really need a better mousetrap

[Simeon]

The dual circuit brakes are a kinda safety feature but I guess that is not the effect you are going for...

What about converting the pedal box to run balanced race masters, drop the booster and swap the calipers for single line race calipers like Willwood. You can get some pretty trick brakes if you are prepared to commit that far. Line lock on standard brakes seems a bit like wearing a fur coat when you can't afford under-draws...

[M3M3M3]

yeah, setting cars up for doing burnouts is not a specialty on this forum!

 

(line lock allows you to lock front brakes on while leaving rear brakes off so you can spin rear tires.....)

 

you need to change the whole brake system to something that uses single line master/calipers.

Edited September 3, 2013 by mlytle

[13]

Hmm, well I am planning to run the I.E. big brake kit (13" compatible version) up front for next year so I guess I need to convert to single line anyways. Sounds like an E21 master is gonna be the way to go at the moment.

The line lock is definitely something I want to run as the car will definitely be seeing the strip once the m20 is in, and running the frankensteined rear end and nitrous. Not a clue what it will run in the quarter up here but if I can run quicker than 14.8 I will be quite happy (buddies best time with a 396 in his 68 Malibu sedan)

Thanks guys!

[tim385]

This works, single line split ,front and rear so everything is still dual circuit.In your case you will be using thevE 21 master.Prop valve on rear line with a 5 lb residue valve.

[TobyB]

You could lock one front circuit- I'd bet the 'upper' one would grab best.

Then you still have safety brakes...

 

But you're going to have rear suspension chatter and hop issues trying to do burnouts, methinks, from some experience...

 

t

[13]

Mmm hard to say about the wheel hop, I've seen some high power 2002s launching hard aswell as some pretty deadly burnouts and no visible signs of hop or chatter. The car will be getting all new heavy duty bushings and 'stein HD's (replacing old worn out Spax ones) over winter and the fact the M20 with a few goodies should definitely break the rear tires loose without much fuss. A different car I know but even my 325e e30 I had would light up that rear tires quite well...

[qdessa]

Any videos of a 2002 at a drag strip?  It would be interesting to see!

[M3M3M3]

lots of 02's ran the drag strip at the Vintage two years ago.  i have some M2 roof cam video posted on vimeo of some runs.  think it is linked in my build thread.  search on "vintage and drag".

 

here you go.  scroll around this thread.  video and pics.

http://www.bmw2002faq.com/topic/122131-the-vintage-national-gathering-of-vintage-bmws-may-25-26/page-2?

Edited September 16, 2013 by mlytle