Help!!

Ed Wright · 03-28-2011, 12:28 PM

Quote:

Originally Posted by chad rhodes

always happy to help

Just that kinda guy, right? LOL

Chad Rhodes · 03-28-2011, 03:32 PM

Quote:

Originally Posted by Ed Wright

Just that kinda guy, right? LOL

Just a big cuddly ray of sunshine.

Hope you get the problem fixed

Ed Wright · 03-28-2011, 03:34 PM

What I think I found is a failed spring inside my micro switch. I measured the travel on my new switches and found .043" travel for the roller on the lever would close the switch. My old one was so weak I had to hold the roller up to zero my dial indicator. It then only required .025" travel to close the switch. I think the new switch with more travel and a stronger spring will help prevent bumping the 2 step. The new switches (bought a spare) costs about three dollars at Affiliated Electronics. Cheapest thing on the whole car.
What you look for is called a short roller micro switch. Affiliated's part number for the switch is PH30-2080B. They are online.
Hope this helps somebody.

buzzinhalfdozen · 03-28-2011, 03:35 PM

Ed, what kind of button are you running?

Ed Wright · 03-28-2011, 03:50 PM

Quote:

Originally Posted by buzzinhalfdozen

Ed, what kind of button are you running?

Joe, it's a Biondo Terminator. I've gotten over a half dozen private messages from guys having the same issue I had. Some just changed to a different style different button. Guess I'm either stupid or stuborn. Probably the latter. <G> I feel like this new switch will take care of it. Too cold to test here this weekend. Hope I found it.

Ed Wright · 04-01-2011, 09:49 PM

Well, it wasn't the micro switch on the Terminator button. Tested this afternoon at Tulsa. Still cuts off & back on. TPS graphs have been ugly, so changed it at the track. Also changed the FAST XFI ECU. Cleaned up the TPS graph. Still cuts off. Unplugged the rotory dial MSD 2-step selector, plugged on a rev limiter chip. No help. When it doesn't cut off the car is the fastest it has been. Can't race it like this.
If I find it I will post it with the hopes it might help somebody else.
Ed

art leong · 04-01-2011, 10:27 PM

What are your wide band readings when it is cutting out?
Another trhing I've heard about are tachometer problems effecting the motor.

Ed Wright · 04-01-2011, 10:40 PM

Art, wide band doesn't change, voltage to the ECU doesn't show a change. Had the tach disconnected, still did it.

Thanks, Ed

03-28-2011, 03:34 PM	#3
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Help!! What I think I found is a failed spring inside my micro switch. I measured the travel on my new switches and found .043" travel for the roller on the lever would close the switch. My old one was so weak I had to hold the roller up to zero my dial indicator. It then only required .025" travel to close the switch. I think the new switch with more travel and a stronger spring will help prevent bumping the 2 step. The new switches (bought a spare) costs about three dollars at Affiliated Electronics. Cheapest thing on the whole car. What you look for is called a short roller micro switch. Affiliated's part number for the switch is PH30-2080B. They are online. Hope this helps somebody. __________________ Ed Wright 4156 SS/JA

03-28-2011, 03:35 PM	#4
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: Help!! Ed, what kind of button are you running? __________________ Joe Buchanan SS/BX 3117

04-01-2011, 09:49 PM	#6
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Help!! Well, it wasn't the micro switch on the Terminator button. Tested this afternoon at Tulsa. Still cuts off & back on. TPS graphs have been ugly, so changed it at the track. Also changed the FAST XFI ECU. Cleaned up the TPS graph. Still cuts off. Unplugged the rotory dial MSD 2-step selector, plugged on a rev limiter chip. No help. When it doesn't cut off the car is the fastest it has been. Can't race it like this. If I find it I will post it with the hopes it might help somebody else. Ed __________________ Ed Wright 4156 SS/JA

04-01-2011, 10:27 PM	#7
art leong VIP Member Join Date: Dec 2001 Location: Richmond Hill, Georgia Posts: 2,003 Likes: 0 Liked 1 Time in 1 Post	Re: Help!! What are your wide band readings when it is cutting out? Another trhing I've heard about are tachometer problems effecting the motor. __________________ Art Leong 2095 SS

04-01-2011, 10:40 PM	#8
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Help!! Art, wide band doesn't change, voltage to the ECU doesn't show a change. Had the tach disconnected, still did it. Thanks, Ed __________________ Ed Wright 4156 SS/JA

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode