2 step off brake pressure switch ?
 

Plan to hook up my 2 step off a brake pressure switch but have a wiring question
How do u wire it correctly so it doesn’t activate at the finish line when I would get on the brakes on decel
I don’t have a clean neutral valve body
Any advice on how to wire correctly would be greatly appreciate
Thanks Bob

Re: 2 step off brake pressure switch ?
 

Put as micro switch on your shifter so the two step will only activate in low gear

Re: 2 step off brake pressure switch ?
 

Sounds like it would be slow to react hooked up like that.

Re: 2 step off brake pressure switch ?
 

I've got my switch set at a pretty high pressure (Folk Race Cars "The Answer"). So unless something drastic happened and I locked up the brakes. I don't think it would engage anyways. But what I did just in case. Is I put a toggle switch on the dash. It has one of those red switch covers on it like something out of a military plane or vehicle (summit sells then as well as a lot of the chain auto parts stores). I have the cover up on the starting line and the switch is on. After I leave. I reach over and hit the red switch cover and when it comes down it turns the switch off. After a couple runs it becomes second nature. .And I don't have to look to make sure I'm turning off the right switch. I can do it now without even looking.

Re: 2 step off brake pressure switch ?
 

I thought the rule book said the wire had to be unbroken from hyd. switch to the twostep. I could be wrong.

Re: 2 step off brake pressure switch ?
 

Then put the on/off switch in the wire that supplies power to the hyd. switch.

Re: 2 step off brake pressure switch ?
 

Our switches are set pretty high and not very much chance
that we will hit the two step when braking unless we go totally
crazy on the brakes.

Re: 2 step off brake pressure switch ?
 

Why do you say that???

Electricity travels at about 300,000,000 meters per second...

Re: 2 step off brake pressure switch ?
 

Just thinkng out loud, why would activating a two-step at the finish line be a problem? You have already let off the gas and most race converters stall at 4500 and above so if the 2-step activates at say 3500, wouldn't the engine just freewheel?
Besides on another note, if your shifter allows going to reverse by accident at the finish line, you need a better shifter. My hand is on the handle ready to neutral before the line, then I brake.
Mike

Re: 2 step off brake pressure switch ?
 

Im referring to the hydraulic pressure in the brake line taking longer to release the switch when you take your foot off the pedal. How would that action be equal too or faster than using say a transbrake switch on your shifter? The action from using a transbrake switch seems like it would be much quicker. Is there something im missing here? Thanks

Re: 2 step off brake pressure switch ?
 

The shifter mounted switch won’t pass tech in Stock.

Re: 2 step off brake pressure switch ?
 

Gotcha! Thanks

Re: 2 step off brake pressure switch ?
 

It isn't normal slowing that's an issue. ...It's a problem because if you stab the brakes at the stripe to tighten it up or give it back , the 2 step instantly pulling the engine to 3 or 4000 rpm is akin to using a Jake brake on a diesel truck .
Especially on a car with steep rear gears .

Re: 2 step off brake pressure switch ?
 

That's what I did too, I don't think I've come close to activating at the top end yet. But I do have a switch already installed, and putting it inline with power to the pressure switch is a good idea. I might try that some time. I put that switch in before I encountered the "unbroken wire" rule and never hooked it up.

Re: 2 step off brake pressure switch ?
 

I'm sure I've posted this before.
Release was in the brake pedal.The system only worked with the shifter in low gear .
Not possible to leave off the micro switch in low.
I suppose someone could try to pull a fast one and leave in 2nd with an auto upshift deal.
Still would be kind of awkward to use the switch (and the pedal button) on the line.
I never had a problem..No. 1 Q, record holder, etc.

https://i.postimg.cc/85jdX0xC/100-2227xzx.jpg

https://i.postimg.cc/yYPJ9Trp/100-2226.jpg

Re: 2 step off brake pressure switch ?
 

You don't want the limiter coming on at the finish line..even accidentally .
You can get the boot for that.

Re: 2 step off brake pressure switch ?
 

I had a very loose converter that allowed the engine to flutter at 7000 on the rev limiter, (drive shaft was 5600) it just drops ignition on various cylinders, not closing off the exhaust like a jack brake. I'll try it out this spring to see what happens, intriguing. some type of cut out switch would be the best.

Re: 2 step off brake pressure switch ?
 

Probably is, but if you're not allowed a transbrake this is a way to leave at the same RPM every time footbraking.
I tend to scrub the brakes before the stripe to tighten it up, doing this with my foot on the throttle. If I didn't have a way to shut the 2 step off it would stutter at the top end. I have a switch that controls the power to the brake pressure switch and a small LED on the dash to show when the brake pressure activates the 2 step so I know I'm on the brake hard enough at the starting line.
I've thought about using a high gear pressure switch on the trans that would open the power circuit in high gear.

Re: 2 step off brake pressure switch ?
 

Sounds pretty ingenious.

Re: 2 step off brake pressure switch ?
 

And there I thought I was the only one to use an LED like that!

Re: 2 step off brake pressure switch ?
 

The LED serves a couple of purposes. First it lets me know I've powered it up, then it lets me now if I'm on the brake hard enough. Most importantly it lets me know the system is working. I powered the LED from the 2 step feed. Nothing like staging and going to the floor and no 2 step! By then you've pushed into the beam deep at best and it's hard to recover. I've also had the chip come out of the 2 step which there is no LED for unfortunately.

Re: 2 step off brake pressure switch ?
 

My LED is green

Re: 2 step off brake pressure switch ?
 

Any input on the best brake switch out there to use?

Re: 2 step off brake pressure switch ?
 

Who makes the best in-line Brake Pressure Switch?

Re: 2 step off brake pressure switch ?
 

I don't know about Best - I use an old Ford master cylinder sw (60 - 70) with the 2 pres on terminals.

Re: 2 step off brake pressure switch ?
 

That's the method I've used, I believe it complies and has worked flawlessly since I installed it about a year and half ago...

Re: 2 step off brake pressure switch ?
 

Folk Switch.

Re: 2 step off brake pressure switch ?
 

Whitman controls! Adjustable industrial quality!