10 replies to this topic

[Inno]

I already decided to go with single line with 7.4 original front discs….but have dilemma after reading CalverST Technical info and Moke Spider's posts....

The main reason why I wanted single line system was to avoid famous FAM7821 but I understood from articles and posts that  split system will work also with only MS72 that can be mounted close to main cylinder for easy access and then to use only one side port from MS72 (blank off the other side port) to lead to the back of the car and than split it for left and right rear brake cylinder.

This means that this same set up can be done with either single line or split system main brake cylinder?

It means:

• locate MS72 at the front bulhead under the hood for easy access,
• blank one side port,
• connect line for back brakes to the other side port (split them left and fright in the back)
• connect MS 72 inlet either from rear port of split system brake cylinder…OR
• connect MS72 inlet from single line cylinder after it was slit for direct connection to front discs??

If this makes sense and rear brakes are in both cases controlled in the same way through MS72, what would be better cylinder to use - single line or split (it does have sort of redundancy with 2 way cylinder) ??

 

[Inno]

..bump...

 

In the meantime I decided I will go with single line main cylinder since split line ...

 

So still main question is does anybody have experience with locating MS72 in the front bulkhead and taking only one line from one side port to the back and then split it left and right, while blanking another side port of the MS72??

[nicklouse]

why even bother with the MS272? if you want to do that. there are other adjustable limiters that cost less and don't need one port blocking.

 

PS have a search there are many topics about single and dual line brakes and this question within the last 6 months.

[Inno]

why even bother with the MS272? if you want to do that. there are other adjustable limiters that cost less and don't need one port blocking.

 

PS have a search there are many topics about single and dual line brakes and this question within the last 6 months.

thanks...I think I read them all..at least all pop out during search...

 

what other adjustable limiters???...except inertia one that is not available around....

[nicklouse]

http://www.theminifo...er#entry3554043

http://www.theminifo...ake-conversion/

http://www.theminifo...ons/?hl= master

 

something like this. just make sure you make the pipe up with the correct fittings

https://www.ebay.com...5.c100005.m1851

[KTS]

 

why even bother with the MS272? if you want to do that. there are other adjustable limiters that cost less and don't need one port blocking.

 

PS have a search there are many topics about single and dual line brakes and this question within the last 6 months.

 

...except inertia one that is not available around....

 

 

FYI - somerford appear to stock the inertia type

 

http://www.somerford...roducts_id=3901

[Spider]

Single or Tandem really comes down to what's legal for your car, the year it was made and what your local registration rules require.

 

A Single Circuit System will give a better pedal feel as there is less rubber in the system, however, on the safety side, it is ONLY single circuit.

 

Tandem or Single Circuit set ups will usually also require a Brake Pressure Limiter of some type or another for the Rear Brakes. Just about any out there, and not even Mini Specific types will work here and I'd suggest KISS - Keep It Simple Stupid - here, something those FAMxxxx 4 or 5 port stupid valves are not.

 

With some Brake / Car set ups, a Limiter Valve may not be needed, but typically, these use 1/2" Rear Wheel Cylinders and if a Tandem Master Cylinder is used, it should have the same size bore for both circuits. I do express some Caution with this set up and it should be thoroughly tested in poor conditions before deeming it safe to use this way.

[Inno]

 

 

why even bother with the MS272? if you want to do that. there are other adjustable limiters that cost less and don't need one port blocking.

 

PS have a search there are many topics about single and dual line brakes and this question within the last 6 months.

 

...except inertia one that is not available around....

 

 

FYI - somerford appear to stock the inertia type

 

http://www.somerford...roducts_id=3901

 

thanks...so you think I can use that with single line master cylinder after I split one line direct for front discs and than after that another line for back brakes fit into this inertia valve?

[Inno]

http://www.theminifo...er#entry3554043

http://www.theminifo...ake-conversion/

http://www.theminifo...ons/?hl= master

 

something like this. just make sure you make the pipe up with the correct fittings

https://www.ebay.com...5.c100005.m1851

THANKS A LOT!!

 

I saw those threads and that is where I got idea but nobody covered MS72 at front with single line....idea about replacement bias valve is great didn't cross my mind to use something out of MS or similar......are those valves ok for low pressure we need in the back?  ...What is actually back brake pressure we are looking for and what is output from Master cylinder...so what reduction rate we need?

[nicklouse]

 

 

 

why even bother with the MS272? if you want to do that. there are other adjustable limiters that cost less and don't need one port blocking.

 

PS have a search there are many topics about single and dual line brakes and this question within the last 6 months.

 

...except inertia one that is not available around....

 

 

FYI - somerford appear to stock the inertia type

 

http://www.somerford...roducts_id=3901

 

thanks...so you think I can use that with single line master cylinder after I split one line direct for front discs and than after that another line for back brakes fit into this inertia valve?

 

New pipes fitted. Will bled tomorrow.

[Inno]

how is that valve working after some time being used?