LOOM and Brake Light Pedal Motion Switch kit.

[BenGTR]

As far as I understand the "Brake Light Pedal Motion Switch kit", it will give information, if the brake pedal is pressed, so the brake lights can light up at the correct time.

Normally this will be done by the "brass brake 4 way"?


So should I connect the cable from the "Brake Light Pedal Motion Switch kit" to the loom at position 71 instead of connecting "71" to the ""brass brake 4 way"? Or is there another solution?

[356Speedster]

Yep, you've got it. You'll need to run the wires from the new pedal mounted switch down the left hand side of the chassis with the main loom, all the way to the back where it replaces the pressure switch and connects to the loom at pos 71. Once connected, I built the whole lot into the main loom.

I binned the 4-way adapter out of neatness and fitted a t-piece (as it used at the front m-cyl to feed the front brakes), as it meant I could delete the pressure switch too.

HTH.

[BenGTR]

Thanks

The advantage over the 4-way is a faster reaction when breaking or why is this upgrade available?

[356Speedster]

BenGTR said:

Thanks

The advantage over the 4-way is a faster reaction when breaking or why is this upgrade available?

Aye. The pressure switch on the brake line takes quite a bit of pressure to activate, from what I've heard. The pedal switch will trigger a lot sooner.

I've gone for this upgrade after 3yrs of having my friends complain that I never braked in the Atom.... I did, it's just that the switch was too slow to react to light brushes of the pedal!

[Storer]

You need to make sure you set the switch up correctly though!!!

I think it's time the Factory dumped the pressure switch and change the loom for the pedal switch. Richard........................


Paul

[Stig]

One factor is that as standard it's driven from the rear brake circuit and depending on how your bias is set, you may not get enough pedal pressure to activate it (I'm no hydraullics expert - but that was my theory when building the Can-Am). I switched it to the front and it was never a problem. That said, I had it on the rear of the GTR and never had any issues with it there?

Reading that back, I'm not sure of the point of my post at all

[Steve_D]

The rear brake lines are lower pressure than the front which is why a standard pressure switch does not work well. I replaced my switch with an adjustable one which works fine.

Steve

[MarkWebb]

Mine is in front brake circuit and works ok.

[Storer]

Depending on how you set the electric switch you can have the brake lights coming on even if you only brush the pedal.
With the brakes on these cars being so effective, I would like others behind me to start braking before I need to give it any effort on the pedal!!!!!!!!!!.

Paul

[UltimaCH]

I have the pedal switch option in my order, but is it possible to place the pressure switch up front and closer to the master cylinder?

[Steve_D]

UltimaCH said:

I have the pedal switch option in my order, but is it possible to place the pressure switch up front and closer to the master cylinder?

Yes....about 150mm away.

Steve

[UltimaCH]

OK, will try the solution when I reach that part of the build.
Thanks Steve

[crossram]

Does anyone have a picture of the pedal mounted brake lite switch installed?