Brake pressure switch

Robert Simpson · 05-27-2012, 05:10 PM

Phillip, I tried to order online at GEMS, but it would only allow me to order 10 at minimum. I will try again, that is why I tried to call them. Thank you for the info I will look up the switch you use.

Robert

Phillip marvetz · 05-27-2012, 05:57 PM

I ordered four when I bought mine. Even if you had to buy 10 you could probably sell the extrs here,lol

west coast · 05-27-2012, 11:39 PM

Robert pm me I have had the same problem with min of 10 to order. I need a couple of switches also.

GTX JOHN · 05-28-2012, 02:32 AM

I could use a couple or three myself.

Steve Hayward · 05-28-2012, 10:27 AM

A good parts guy can find one..... they are preety comment..... I think they are used a lot in tow motors......... I pay about $10 CDN to prob 15 now for one.......

Dean Feiock · 05-28-2012, 10:01 PM

Why does this switch need to be adjustable?
If you are using an adjustable switch, must you install a brake pressure guage?

KRatcliff · 05-28-2012, 10:15 PM

Quote:

Originally Posted by Dean Feiock

Why does this switch need to be adjustable?
If you are using an adjustable switch, must you install a brake pressure guage?

Adjustable helps you adjust your reaction time. There is a point of diminishing return. I don't use a pressure gauge, but I always check it for muscle memory right before I pre-stage.

bmedeirs · 06-01-2012, 11:53 PM

I use a switch from PDI PDAH-4-4M-C-FL-9. There are older versions of this switch that have a similar part number. There are a couple of these currently on ebay.

http://www.ebay.com/itm/PDI-PPDI-PDA...item35ac4b4a0d

http://www.ebay.com/itm/DYNAMIC-AIR-...item1c25be9020

You need a second switch in series on the shifter in first gear position so that the brake pressure will closed the micro switch when you step on the brake at the starting line and the switch on the shifter most be in first gear and closed also for the two step to be activated. This prevents the two step from activating at the finish line if you foot brake at the stripe. I use a common bump switch for the shifter mounted on a small bracket. I brake pressure gauge with a small light built into it is also a good option also. The pressure switch must be installed with the red wire (Normally open) and also the black wire = common. The pressure switch is adjustable, remove the screw from the top of the switch, using an 1/8 allen wrench to adjust clockwise to increase set point and counter-clockwise to decrease set point. Then replace the screw. Works by staging, stepping on the brake hard, stepping on the gas, releasing the brake to launch.

05-27-2012, 05:10 PM	#1
Robert Simpson Senior Member Join Date: Aug 2004 Location: Jacksonville, Florida Posts: 808 Likes: 7 Liked 20 Times in 12 Posts	Re: Brake pressure switch Phillip, I tried to order online at GEMS, but it would only allow me to order 10 at minimum. I will try again, that is why I tried to call them. Thank you for the info I will look up the switch you use. Robert

05-27-2012, 05:57 PM	#2
Phillip marvetz Senior Member Join Date: Oct 2008 Location: Lynden ,WA Posts: 820 Likes: 0 Liked 3 Times in 3 Posts	Re: Brake pressure switch I ordered four when I bought mine. Even if you had to buy 10 you could probably sell the extrs here,lol __________________ 2009 V/SA Record Holder

05-27-2012, 11:39 PM	#3
west coast Senior Member Join Date: Dec 2008 Location: Rainy Washington Posts: 608 Likes: 12 Liked 222 Times in 72 Posts	Re: Brake pressure switch Robert pm me I have had the same problem with min of 10 to order. I need a couple of switches also.

05-28-2012, 02:32 AM	#4
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,728 Likes: 2,783 Liked 2,462 Times in 694 Posts	Re: Brake pressure switch I could use a couple or three myself.

05-28-2012, 10:27 AM	#5
Steve Hayward Junior Member Join Date: Jul 2003 Location: Canada Posts: 39 Likes: 0 Liked 0 Times in 0 Posts	Re: Brake pressure switch A good parts guy can find one..... they are preety comment..... I think they are used a lot in tow motors......... I pay about $10 CDN to prob 15 now for one.......

05-28-2012, 10:01 PM	#6
Dean Feiock Member Join Date: Aug 2002 Location: Pierre, SD Posts: 204 Likes: 0 Liked 49 Times in 15 Posts	Re: Brake pressure switch Why does this switch need to be adjustable? If you are using an adjustable switch, must you install a brake pressure guage? __________________ Dean Feiock -- Stock 5002

06-01-2012, 11:53 PM	#8
bmedeirs Junior Member Join Date: Sep 2010 Posts: 13 Likes: 0 Liked 0 Times in 0 Posts	Re: Brake pressure switch I use a switch from PDI PDAH-4-4M-C-FL-9. There are older versions of this switch that have a similar part number. There are a couple of these currently on ebay. http://www.ebay.com/itm/PDI-PPDI-PDA...item35ac4b4a0d http://www.ebay.com/itm/DYNAMIC-AIR-...item1c25be9020 You need a second switch in series on the shifter in first gear position so that the brake pressure will closed the micro switch when you step on the brake at the starting line and the switch on the shifter most be in first gear and closed also for the two step to be activated. This prevents the two step from activating at the finish line if you foot brake at the stripe. I use a common bump switch for the shifter mounted on a small bracket. I brake pressure gauge with a small light built into it is also a good option also. The pressure switch must be installed with the red wire (Normally open) and also the black wire = common. The pressure switch is adjustable, remove the screw from the top of the switch, using an 1/8 allen wrench to adjust clockwise to increase set point and counter-clockwise to decrease set point. Then replace the screw. Works by staging, stepping on the brake hard, stepping on the gas, releasing the brake to launch. __________________ Bob Medeiros Stk #1212 70 Camaro B/SA