HOME FORUM RULES CONTACT
     
   
   

Go Back   CLASS RACER FORUM > Class Racer Forums > Stock and Super Stock
Register Photo Gallery FAQ Community Calendar

Reply
 
Thread Tools Display Modes
Old 07-10-2009, 11:59 AM   #1
bill dedman
VIP Member
 
Join Date: Feb 2002
Location: Conway, AR
Posts: 1,739
Likes: 0
Liked 6 Times in 4 Posts
Default Re: take all the numbers off of the time slips, lol

--------------------------------------------------------------------------------
Bill asked how a line-loc could be used to effect a delay box for a starting-line advantage.

Danny Ashley replied:
"Bill,
Using a delay box on a footbrake car just requires installing a second line-loc into the rear brakes and a two-step. I put on on my Stocker about mid-year in 1988 when they were legal but had some inconsistency issues. Replacing the solid-core plug wires with carbon type and killing the field on the altenator solved the problem. Unfortunately I didn't get it sorted out until after the Keystone Nationals and delay boxes were outlawed in 1989. Mr. Muncy was caught because motion was detected in his arm and shoulder but I believe it can be successfully operated undetected with the left foot. I'm sure people smarter than me has already figured this out. Danny"

Thanks for that very educational explanation, Danny! I understand all of it except, I am at a loss to understand the relationship between a line-loc and solid-core sparkplug wires and an alternator's output.

Can you give me the reasons for those relationships, please? Is it some sort of "R-F" interference generated by the magnetic fields, and if it is, by what method do they interfere with, or affect, a purely electrical solenoid like is in a line-loc???? Or, was it the two-step that was affected? I have taken videos of cars that had two--steps that played havoc with my video-recorder while the two-step was in operation.

I am baffled by this one!

Thanks for any info,

Bill
__________________
Bill
bill dedman is offline   Reply With Quote
Old 07-10-2009, 01:03 PM   #2
Michael Pliska
Member
 
Join Date: Oct 2008
Location: Happy Valley, OR
Posts: 260
Likes: 0
Liked 0 Times in 0 Posts
Default Re: take all the numbers off of the time slips, lol

Quote:
Originally Posted by bill dedman View Post
--------------------------------------------------------------------------------
Bill asked how a line-loc could be used to effect a delay box for a starting-line advantage.

Danny Ashley replied:
"Bill,
Using a delay box on a footbrake car just requires installing a second line-loc into the rear brakes and a two-step. I put on on my Stocker about mid-year in 1988 when they were legal but had some inconsistency issues. Replacing the solid-core plug wires with carbon type and killing the field on the altenator solved the problem. Unfortunately I didn't get it sorted out until after the Keystone Nationals and delay boxes were outlawed in 1989. Mr. Muncy was caught because motion was detected in his arm and shoulder but I believe it can be successfully operated undetected with the left foot. I'm sure people smarter than me has already figured this out. Danny"

Thanks for that very educational explanation, Danny! I understand all of it except, I am at a loss to understand the relationship between a line-loc and solid-core sparkplug wires and an alternator's output.

Can you give me the reasons for those relationships, please? Is it some sort of "R-F" interference generated by the magnetic fields, and if it is, by what method do they interfere with, or affect, a purely electrical solenoid like is in a line-loc???? Or, was it the two-step that was affected? I have taken videos of cars that had two--steps that played havoc with my video-recorder while the two-step was in operation.

I am baffled by this one!

Thanks for any info,

Bill
Bill,
The Radio Frequency Interference (RFI) generated by an alternator &/or an ignition system can disrupt the tiny electrical signals in an electronic device like a delay box. Each little trace on the circuit board can act as an antenna, which results in an unwanted electrical current in that circuit, which can in turn "crash" the microprocessor, or at least scramble some of its results. I built my own microprocessor controlled delay box in the late 80's, and in the original plastic enclosure it would crap out as soon as I started the car. Moved it into a metal enclosure and it worked fine.

Regards,
__________________
Michael Pliska 643 S/G
Michael Pliska is offline   Reply With Quote
Old 07-10-2009, 02:22 PM   #3
bill dedman
VIP Member
 
Join Date: Feb 2002
Location: Conway, AR
Posts: 1,739
Likes: 0
Liked 6 Times in 4 Posts
Default Re: take all the numbers off of the time slips, lol

Thanks, Michael... now I understand. I didn't know that R-F was a problem for micro-processors.

Bill
__________________
Bill
bill dedman is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 11:34 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.