Rev limiter on the brake pedal

awr68cuda · 04-19-2009, 02:52 PM

I am finishing up my new stocker and would like to know how the low side rev limiter is being activated by the brake pedal. I have heard using a brake light activation switch functions well, any other application ideas? The biggest question is, How do you not acitvate the rev limiter any other time you are pushing hard on the brake pedal, ie, finish line etc. This seems like a concern, maybe its not. Please offer suggestions of what system works well. Thanks.

Chuck Porter · 04-19-2009, 04:24 PM

I have used a brake light switch plumbed into the rear brake line at the master cylinder.
From there you wire in a NC (Normally Closed) micro switch on the shifter that opens when you shift to second gear. Once the circuit is open your button on the brake pedal should be dead. Basically you want the switch to deactivate (cut power to) the button on the pedal after you shift.
I think some shifter companies are equipped with a micro switch or drilled to accommodate them.
Confused yet? I have that effect on people!
Chuck

Mark Yacavone · 04-19-2009, 06:35 PM

Quote:

Originally Posted by awr68cuda

I am finishing up my new stocker and would like to know how the low side rev limiter is being activated by the brake pedal. I have heard using a brake light activation switch functions well, any other application ideas? The biggest question is, How do you not acitvate the rev limiter any other time you are pushing hard on the brake pedal, ie, finish line etc. This seems like a concern, maybe its not. Please offer suggestions of what system works well. Thanks.

This comes up every couple months, so I keep this picture handy. That micro switch on the shifter is only activated in low gear

Jim Cimarolli · 04-20-2009, 05:29 PM

I had a real nice fool proof set up one time with a switch on the shifter and a brake pressure switch, I was told to remove all of it at tech right under the tech guys nose or "go home". "One switch" was his answer.
But who knows what the rules will be at your next tech lane experience,,,,,,,,,Good Luck.

Mark Yacavone · 04-20-2009, 06:22 PM

Jimbo, What do you think someone would say ,if you stepped onthe brake near the finish line ,and they heard the rev limiter come on?

Jim Cimarolli · 04-20-2009, 07:51 PM

Mark,

I guess it would depend on who that someone was, and who said they didn't hear it.

Pat Cook · 04-22-2009, 05:37 PM

I have mine wired identical to Mark's (micro switch located at the back of the shifter to open the two step switch circuit) except the two step switch is connected to the factory brake light switch. It has been wired that way for a really looooooong time......I hope I don't run into an over zealous tech man....the wiring in my car is exposed, so I could show a tech man how it works.

FrankM · 04-26-2009, 07:30 AM

To activate the rev limitter I have always used a micro switch behind the pedal arm. It has worked flawlessly and reacts great. I have used a switch I flip at the top end to disable the 2-step but using the micro switch on the shifter is probably better, one less thing to remember to do.

04-19-2009, 02:52 PM	#1
awr68cuda Junior Member Join Date: Oct 2008 Location: Wisconsin Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Rev limiter on the brake pedal I am finishing up my new stocker and would like to know how the low side rev limiter is being activated by the brake pedal. I have heard using a brake light activation switch functions well, any other application ideas? The biggest question is, How do you not acitvate the rev limiter any other time you are pushing hard on the brake pedal, ie, finish line etc. This seems like a concern, maybe its not. Please offer suggestions of what system works well. Thanks.

04-19-2009, 04:24 PM	#2
Chuck Porter Member Join Date: Nov 2002 Location: Alberta, Canada Posts: 104 Likes: 0 Liked 0 Times in 0 Posts	Re: Rev limiter on the brake pedal I have used a brake light switch plumbed into the rear brake line at the master cylinder. From there you wire in a NC (Normally Closed) micro switch on the shifter that opens when you shift to second gear. Once the circuit is open your button on the brake pedal should be dead. Basically you want the switch to deactivate (cut power to) the button on the pedal after you shift. I think some shifter companies are equipped with a micro switch or drilled to accommodate them. Confused yet? I have that effect on people! Chuck __________________ Chuck Porter STK

04-20-2009, 05:29 PM	#4
Jim Cimarolli Senior Member Join Date: Mar 2002 Location: Sulphur Springs Texas Posts: 741 Likes: 144 Liked 166 Times in 46 Posts	Re: Rev limiter on the brake pedal I had a real nice fool proof set up one time with a switch on the shifter and a brake pressure switch, I was told to remove all of it at tech right under the tech guys nose or "go home". "One switch" was his answer. But who knows what the rules will be at your next tech lane experience,,,,,,,,,Good Luck.

04-20-2009, 06:22 PM	#5
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,742 Likes: 2,846 Liked 5,002 Times in 1,902 Posts	Re: Rev limiter on the brake pedal Jimbo, What do you think someone would say ,if you stepped onthe brake near the finish line ,and they heard the rev limiter come on? __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers

04-20-2009, 07:51 PM	#6
Jim Cimarolli Senior Member Join Date: Mar 2002 Location: Sulphur Springs Texas Posts: 741 Likes: 144 Liked 166 Times in 46 Posts	Re: Rev limiter on the brake pedal Mark, I guess it would depend on who that someone was, and who said they didn't hear it.

04-22-2009, 05:37 PM	#7
Pat Cook Member Join Date: Jun 2002 Posts: 175 Likes: 0 Liked 0 Times in 0 Posts	Re: Rev limiter on the brake pedal I have mine wired identical to Mark's (micro switch located at the back of the shifter to open the two step switch circuit) except the two step switch is connected to the factory brake light switch. It has been wired that way for a really looooooong time......I hope I don't run into an over zealous tech man....the wiring in my car is exposed, so I could show a tech man how it works.

04-26-2009, 07:30 AM	#8
FrankM Junior Member Join Date: Jan 2009 Location: Columbus, OH Posts: 98 Likes: 0 Liked 3 Times in 2 Posts	Re: Rev limiter on the brake pedal To activate the rev limitter I have always used a micro switch behind the pedal arm. It has worked flawlessly and reacts great. I have used a switch I flip at the top end to disable the 2-step but using the micro switch on the shifter is probably better, one less thing to remember to do.