Bracket Talk
Funny Reaction Times in Vegas

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November 18, 2025, 08:27 AM
DragRaceResults
Funny Reaction Times in Vegas
Good to know. I'd love to double check this as I've found even most track managers aren't fully aware of how a timing system works.

Good thing most tracks don't have them or turn them off for most classes.



www.dragraceresults.com
November 18, 2025, 09:17 AM
B KING
Our track manager is Jeff Foster, I'm sure he would know! It was Vegas that people are making the accusations. He's the person to talk with, instead of spreading ......!

2BKING Smile

Relaxing


1980 Camaro
Taking the Best Working Small Tire Shyt Box & making it Greater Than Before!
3100 lbs.
Pump Gas 436
November 18, 2025, 10:58 AM
Lenny5160
The way it was explained to me is that the Guard Beam serves as a backup for a lazy photocell on the starting line.

If the Guard Beam is broken, the timing system says, "Oh, ****, the wheel just broke the Guard Beam so I better start timing this race!"

I can see how that could be workable in a heads-up race, but doesn't work well in a breakout-type class.


Tony Leonard
November 18, 2025, 11:56 AM
RPROGAS
quote:
doesn't work well in a breakout-type class


It certainly didn't work for my son in the final round of T/S. All of the math (RT a -.011 and ET a + .17) indicates to me that something tripped the clock early. No where near red all day, then adds more delay only to go red by .011 in the final.

Highly doubt it!!!!

Bob
November 18, 2025, 12:35 PM
Goob
quote:
Originally posted by Lenny5160:
The way it was explained to me is that the Guard Beam serves as a backup for a lazy photocell on the starting line.

If the Guard Beam is broken, the timing system says, "Oh, ****, the wheel just broke the Guard Beam so I better start timing this race!"

I can see how that could be workable in a heads-up race, but doesn't work well in a breakout-type class.


Correct, it also guards against anything under the car holding the beam.


"Despite the high cost of living, it remains popular."
Dave Cook
N375
November 18, 2025, 12:37 PM
Goob
quote:
Originally posted by RPROGAS:
quote:
doesn't work well in a breakout-type class


It certainly didn't work for my son in the final round of T/S. All of the math (RT a -.011 and ET a + .17) indicates to me that something tripped the clock early. No where near red all day, then adds more delay only to go red by .011 in the final.

Highly doubt it!!!!

Bob


That would be a classic "backed out" result, although the ET deviation is a bit much...any chance that he gave up on the run early having seen the redlight??


"Despite the high cost of living, it remains popular."
Dave Cook
N375
November 18, 2025, 12:38 PM
CURTIS REED
Here is an old interview with Brockmeyer explaining the workings of the original guard beam.

https://competitionplus.com/co...g-system-guard-beam/
November 18, 2025, 01:29 PM
Lenny5160
quote:
Originally posted by RPROGAS:
quote:
doesn't work well in a breakout-type class


It certainly didn't work for my son in the final round of T/S. All of the math (RT a -.011 and ET a + .17) indicates to me that something tripped the clock early. No where near red all day, then adds more delay only to go red by .011 in the final.

Highly doubt it!!!!

Bob


The 60' only slowed .002 from the semis, and the 330' was slow .009.

I'm doubting a clock issue in that case.

I do sometimes wonder how often the clocks are off just a little bit that is within a reasonable margin of human/car error. It's very obvious when the RT and ET are shifting together by .03 or more.


Tony Leonard