Vixen split brake circuit - front/rear or diagonal.

[simonpa]

Just about to start on the solid brake tubing and will be using a dual-circuit master cylinder without the additional distributor module.

Should the split be front/back, or diagonal for each circuit, please?

Cheers - Simon

[Slow M]

simonpa said:

Just about to start on the solid brake tubing and will be using a dual-circuit master cylinder without the additional distributor module.

Should the split be front/back, or diagonal for each circuit, please?

Cheers - Simon

F/R

Best regards,
Bernard.

[ATE399J]

Also check which output from your master cylinder is front and which is rear, from memory some are specifically built with two cylinder diameters to give brake bias.

[simonpa]

Thanks both.

I hadn't considered the bias - good point.
I should expect the 'forward' connector to be for the rear as it would have to be the smaller diameter section of the master cylinder, but I will check.

I've gone for a new Land Rover m/c as it fits, has a sloping reservoir and will allow me to get a cap with float sensor in it.

Cheers - Simon

[RochdaleGT]

using a stepped master on such a car is a gamble.....

getting the bias right on non large-scale production car you will need "something" adjustable.

can you list what parts in your brake-system you have changed / uprated from the original setup to now?

[Hansoplast]

Simon,

Just look at Rimmerbros site, Triumph TR 2-5 and you will find all the details required.

Good luck.

Hans

[simonpa]

Brakes are standard disk/M16 caliper at the front and TR6 cylinders/shoes at the rear.
Servo is a new TR6 unit.
Master cylinder is a new Landrover Series 3 unit - I think it has 15/16" bore.

[RochdaleGT]

what was the reason using this landrover master?

maybe this is any help for you:

http://www.expeditionlandrover.info/dual_brake_con...


depending what type of cylinder you are using, front and rear outlets are different.

Edited by RochdaleGT on Tuesday 31st March 07:13

[simonpa]

That's great info - thanks!

I've bought a LR 109 m/c, which appears to have a 2:1 front:rear volume output.
I'll check the specs on the original Triumph unit and see how they compare.

Nothing is fitted yet, so this is all very timely, thanks.

[geeeman]

if you are running rear drums, and front discs, then a diagonal set up would be better i believe?

(on my g4 race car we tried f/r and it meant constantly having to adjust the rear shoes. diagonal is a much better set up now)

[ATE399J]

geeeman said:

if you are running rear drums, and front discs, then a diagonal set up would be better i believe?

(on my g4 race car we tried f/r and it meant constantly having to adjust the rear shoes. diagonal is a much better set up now)

Not if the M/C has a built in bias!

[simonpa]

Indeed.

Also, I think the LR m/c is set to not fully release the pressure on the rear circuit in order to keep the shoes closer to the drums.

[Hansoplast]

Why not follow the original Triumph routing?
With WPA as securing front or rear pressure when parts of the system
fails?

the WPA can be connected in 2 ways. Splitsing Front/Rear or Left/Right.

Rimmerbros give all the details on his site.

Hansoplast.