brake light switch

[Cyberbeej]

I'm looking fgor ideas on where to fit the brake light switch, whether it be in the brake line or on the pedal box?

I'm using a rally designs pedal box with balance bar.

What option have others went with with this setup?

[flyerncle]

Tee it in to one brake line,rear is possibly the best as you would not lose the best brake force if you had a problem,given that the front should have the most effort.

Put it facing down as its possible to get a small amount of air in it if placed vertical.


Balance bar must be locked for the dreaded IVA.

[AshG]

the inline pressure ones are crap i took it off and put a micro switch on the pedal. will try and take a picture of it tonight if i get time

[mark]

As paul said the inline pressure ones can easily get air trapped in them so be aware of this when you locate it & when you bleed the brakes

Thats the problem alot of people have with them without realising it, this causes them to not work properly (needing more pressure for them to switch)

I use one on mine in the rear circuit and it comes on the instant you touch the brake pedal

Using a micro switch does do away with a few joints in the brake circuit though which is never a bad thing, the less places to leak or trap air the better!

[AshG]

dont get me wrong mine did work but i just think they are crap which is exactly why mass car manufacturers did away with them many years ago and all use micro switches now.

[Cyberbeej]

A pic would be cool AshG, would rather use a mechanical switch on the pedals than a hydraulic switch.

I'm not worried about the balance bar, i'll weld it up once i'm happy with the balance, i'm considering upgrading the front calipers to 4 pots, whether thats pre or post IVA will come down to spare cash.

[flyerncle]

I agree its old hat to have hydraulic brake light switches but for simplicity they are a good bet, a microswitch with a large flexy blade will be as good.

Modern vehicles have elecrtic brake light switches for more than one reason,traction control,electronic stability,abs just to mention a few and sometimes linked to CAN bus and fuel pump to reduce emissions and also fitted to clutch pedal for the same reasons.

[Andy_B]

This has got me thinking....a switch on the cockpit side of the brake pedal blade ...ie breaks at the slightest push of the pedal...now i have tons of them in work can either wired N/C or N/O so it can be wired in parralel with master cyl hand break etc etc...