Manual Brake Light Switch

[Bucketlist]

I found this mod in the 911 forum and thought it was worth while. I noticed how hard I have to push the brake pedal for the lights to come on. Since it is a pressure activated system the brake lights don't come on under light braking. Adding a manual brake light switch allows you to adjust the brake lights to activate under light pedal pressure. I have included a few links to read if interested.
Safer stop lights
Carerra / SC mechanical brake light switch install.
SC mechanical brake light switch project
I made one additional change to mine because I have heavy custom carpet in the frunk and included a guard to protect the switch. I used the Hyundai switch because the wires connect to the side.


I also added led light panels to my brake lights from spoke here on the forum and a 3rd brake light in the rear window.

[Bucketlist]

Originally Posted by karryming

hi, It is so professional, I am so confused.

The (80s) Porsche brake system turns on the brake lights by sensing brake fluid pressure in the master cylinder utilizing two pressure switches. Some (most) of these cars are a little slow to activate the brake lights. I found this mod after a large 4x4 truck came a little too close in slow traffic and made me wonder if he could see my (tiny) brake lights. Now the brake lights come on with the slightest movement of the pedal because the manual switch senses movement in the mechanical linkage. Since this switch is spliced into one of the pressure switches the factory system will still work normally if the manual switch should fail.
I also added a 3rd brake light and led brake lights.

[Rich76_911s]

What specific brake light switch did you use? I tried to do this modification but the switch I got (a hyundia switch) was "push to be on" and I didn't see how that would work.

Thanks,
Rich

[Bucketlist]

Originally Posted by Rich76_911s

What specific brake light switch did you use? I tried to do this modification but the switch I got (a hyundia switch) was "push to be on" and I didn't see how that would work.

Thanks,
Rich

Brake Light Switch BECK/ARNLEY 201-1818 | eBay
I have only seen switches that activate when the button pops out. I was confused at first until I learned that the linkage pulls back when the brake is applied allowing the button to pop out.

[krasuskyp]

holyshart Rich - baaaaaaaaaad memories lolololol

between that and the fumes, you'll be quite well sorted for the next (MAY!) outing! 8-)

not to mention all the rest of the bits 'n pieces - the above fix's and yer Zork & BW may have me angling to roll after you (I'd say behind but: Rawkneesalert!!!)

[Rawknees'Turbo]

^^^

Paul, you would be slobbering at the mouf to roll after/behind/under Rich even if he still had the lame stock gear on his car, ya' bisch!

[Rich76_911s]

Paul,

Ha ha ha, no doubt. You'll be happy to hear I did replace the old pressure switches already. I can't make any promises on the rich running conditions yet. I'm certain there will be some tuning and adjusting that needs attention.

It's been a LONG 14-month dry spell. I hope I can make the May event.

[Jeff NJ]

What is this May event of which you speak?

Gimme dates so I can keep it free!

[Rawknees'Turbo]

Originally Posted by Jeff NJ

What is this May event of which you speak?

Gimme dates so I can keep it free!

Proceed with caution, Jeff, as this is the event in question!

[1979-930]

^^^ WTF!

[Rawknees'Turbo]

Originally Posted by 1979-930

^^^ WTF!

Ya' right, Deez, that's you on the far left of the pic, bro(???)!!!

[icemann427]

Originally Posted by Rawknees'Turbo

Ya' right, Deez, that's you on the far left of the pic, bro(???)!!!

And you, Raw knees, put way too much makeup on, ya bisch!!

[1979-930]

I don't like women with a pull start. I like more of a button push/tickle start.

[Jeff NJ]

Originally Posted by Rawknees'Turbo

Proceed with caution, Jeff, as this is the event in question!

Ronnie, why are you posting pics of your class reunion?

Not that there's anything wrong with that.

[Rawknees'Turbo]

What we're seeing here, from IcyHotStuff and JuggleNutzJeff, is unabashed jealousy over my super sexy, psychotic sexiness!

And Deez, those two guyz(???) fit your "non pull start" requirement perfectly!

[Jeff NJ]

OK, after washing out my eyes with acetone to get the images Rawknees posted out of my head (it didn't work), I thought about how to do this brake switch mod. I think I came up with a simple way to put the switch in without any drilling into the master cylinder assy and ordered that same switch. Explaining will never work, so I will work on this and post up what I end up with, good or bad.

Once my eyes heal, that is.

[Bucketlist]

Originally Posted by Jeff NJ

OK, after washing out my eyes with acetone to get the images Rawknees posted out of my head (it didn't work), I thought about how to do this brake switch mod. I think I came up with a simple way to put the switch in without any drilling into the master cylinder assy and ordered that same switch. Explaining will never work, so I will work on this and post up what I end up with, good or bad.

Once my eyes heal, that is.

I agree about Rawknees and his harem. Enough is enough.
I thought about not drilling the bracket. There is even a thread where someone wedges a rubber bushing in the hole to hold the switch. I tried this first but it didn't work for me. I'm lucky since my car is not original I can do whatever I want.

[Rawknees'Turbo]

Don't let Jeff fool you, Steve - he printed 25 copies of that pic (ten of which he put in his 930)!

[Alexm930]

Originally Posted by krasuskyp

holyshart Rich - baaaaaaaaaad memories lolololol

between that and the fumes, you'll be quite well sorted for the next (MAY!) outing! 8-)

not to mention all the rest of the bits 'n pieces - the above fix's and yer Zork & BW may have me angling to roll after you (I'd say behind but: Rawkneesalert!!!)

What May event? You holding out on me Paul?

[GJF]

I did something similar because of the same very reason. Here is the switch I used, I have no booster and dual masters. That is why I used this switch.