Why are these brake lines disconnected?

[M3This]

Hi Guys. Just picked up my car 2 weekends ago and have been in the process of tear down to get it ready for dipping and while removing the master cylinder and brake assist I noticed two of the hard lines were not connected. I looked at the front brakes and low and behold only one of the two hard lines down there are connected.    As a noob I was just curious why someone would do this? Are the front brakes other than stock?

 

 

Edited August 23, 2021 by M3This
typo from autocorrect on my phone

[visionaut]

A PO swapped in Singk-line calipers and took the lazy route??

[M3This]

Is that normal to swap in a single line caliper?

Edited August 22, 2021 by M3This
Typo

[jp5Touring]

I would say no

[John76]

Here is what the stock system looks like.  

The bottom lines on the calipers are the back-up brake system.  Good idea to keep them functional as designed.

 

 

 

[AceAndrew]

17 hours ago, M3This said:

Is that normal to swap in a single line caliper?

 

Those running Wilwood or early Brembo big brake setups will have switched to a single line setup.

 

What you have is a straight E21 caliper swap.

[TobyB]

What you need to do now is figure out the rest of the system.

 

How has the master been disconnected/replaced/ replumbed?

 

t

 

[M3This]

1 hour ago, AceAndrew said:

 

Those running Wilwood or early Brembo big brake setups will have switched to a single line setup.

 

What you have is a straight E21 caliper swap.

 

Thanks for the info. I figured they had to be different then stock, but had zero idea what they were. 

[M3This]

56 minutes ago, TobyB said:

What you need to do now is figure out the rest of the system.

 

How has the master been disconnected/replaced/ replumbed?

 

t

 

 

Right now Im doing a complete tear down on the car to send it out to be dipped, so it's not a super big deal. When I get it back Im planning on doing IE's BBK front & rear with power assist delete. I was just trying to understand what a previous owner had done.

 

The rear drums still appear to have both lines running to them. And the two hard lines were also disconnected at the master cylinder. I should go take a look at it and see if they plugged the holes someway.