Staging beam and starting line ?????

Ed Fernandez · 10-19-2010, 03:47 PM

How about rollout?I'll bet ya it isn't consistent track to track.Just saying.

casper · 10-19-2010, 04:18 PM

Light Beam Placement:
-distance between pre-stage beam and stage beam 7"
-distance between stage beam and gaurd beam 16"
-height of 60' beam 10-10.5"
-height of interval beams,speed trap beams and ET stop beam -all 5-6"

Roll Out - height of beam adjusted as necessary (and possible) to provide 11.5-12" of roll using standard dragster wheel/tire.(22" diam.)
*note , an 11.5" rollout equal on both lanes may not be possible due to track crown. The single most important thing with rollout is that both lanes be as equal as possible.

This info was from a 2004 NHRA Competition Policies & Procedures Manual.

Hope this helps

casper · 10-19-2010, 04:21 PM

as for the tree
-distance from start line to tree: 38-40'
-height of tree :90" from ground to center of pre-stage bulb.

Ed Fernandez · 10-19-2010, 04:52 PM

Quote:

Originally Posted by casper

as for the tree
-distance from start line to tree: 38-40'
-height of tree :90" from ground to center of pre-stage bulb.

I'm surprised that they haven't raised the tree from90" to 150" so the guys with those beluga whale scoops can see the tree in the left lane.

Jim Caughlin · 10-19-2010, 06:05 PM

If there is a standard location for the tree in relation to the starting line, why does it seem that I seem to have move my blinder at some tracks to make it line up correctly? Maybe gravity changes....

Jim Caughlin
SS 6019

RPinoski1 · 10-19-2010, 06:46 PM

thanks casper

Michael Beard · 10-19-2010, 07:30 PM

Quote:

Originally Posted by Jim Caughlin

If there is a standard location for the tree in relation to the starting line, why does it seem that I seem to have move my blinder at some tracks to make it line up correctly?

Tracks are of different widths. Even tracks that measure the same wdith may have the groove in different locations.

cad · 10-19-2010, 09:19 PM

Quote:

Originally Posted by Ed Fernandez

How about rollout?I'll bet ya it isn't consistent track to track.Just saying.

Last Saturday, our track mgr called me up to the starting line while he was checking rollout. He uses a wooden wheel with a stand that he uses to measure rollout. Our's is 11.125-11.25.....for now.

Clark

dartman · 10-19-2010, 10:39 PM

http://www.portatree.com/media/ccp0/...-StartLine.pdf

http://www.portatree.com/media/ccp0/...lloutWheel.pdf

this may be helpful

Jeff Foster · 10-19-2010, 11:16 PM

We have changed the height of the tree to 95" from ground to center of pre stage bulb about 3 years ago. Also guard beam was changed to 13.5 inches 3 years ago.

10-19-2010, 03:47 PM	#1
Ed Fernandez Veteran Member Join Date: Nov 2001 Location: NOO JOISEY nexta NOO YAWK Posts: 5,879 Likes: 38 Liked 100 Times in 45 Posts	Re: Staging beam and starting line ????? How about rollout?I'll bet ya it isn't consistent track to track.Just saying. __________________ Former NHRA #1945 Former IHRA #1945 T/SA

10-19-2010, 04:18 PM	#2
casper Member Join Date: Nov 2002 Location: Canada Posts: 112 Likes: 4 Liked 1 Time in 1 Post	Re: Staging beam and starting line ????? Light Beam Placement: -distance between pre-stage beam and stage beam 7" -distance between stage beam and gaurd beam 16" -height of 60' beam 10-10.5" -height of interval beams,speed trap beams and ET stop beam -all 5-6" Roll Out - height of beam adjusted as necessary (and possible) to provide 11.5-12" of roll using standard dragster wheel/tire.(22" diam.) *note , an 11.5" rollout equal on both lanes may not be possible due to track crown. The single most important thing with rollout is that both lanes be as equal as possible. This info was from a 2004 NHRA Competition Policies & Procedures Manual. Hope this helps

10-19-2010, 04:21 PM	#3
casper Member Join Date: Nov 2002 Location: Canada Posts: 112 Likes: 4 Liked 1 Time in 1 Post	Re: Staging beam and starting line ????? as for the tree -distance from start line to tree: 38-40' -height of tree :90" from ground to center of pre-stage bulb.

10-19-2010, 06:05 PM	#5
Jim Caughlin Senior Member Join Date: Mar 2002 Location: Woodburn, Or Posts: 683 Likes: 82 Liked 801 Times in 244 Posts	Re: Staging beam and starting line ????? If there is a standard location for the tree in relation to the starting line, why does it seem that I seem to have move my blinder at some tracks to make it line up correctly? Maybe gravity changes.... Jim Caughlin SS 6019

10-19-2010, 06:46 PM	#6
RPinoski1 Member Join Date: Jan 2002 Location: PLACERVILLE, CA Posts: 182 Likes: 0 Liked 0 Times in 0 Posts	Re: Staging beam and starting line ????? thanks casper

10-19-2010, 10:39 PM	#9
dartman Member Join Date: Oct 2005 Location: N.S. CANADA Posts: 498 Likes: 158 Liked 68 Times in 41 Posts	Re: Staging beam and starting line ????? http://www.portatree.com/media/ccp0/...-StartLine.pdf http://www.portatree.com/media/ccp0/...lloutWheel.pdf this may be helpful __________________ 1231 FS/D Drag Pak 1231 E/SA 71 Demon Kelly MacKay

10-19-2010, 11:16 PM	#10
Jeff Foster Junior Member Join Date: Jan 2003 Posts: 74 Likes: 0 Liked 0 Times in 0 Posts	Re: Staging beam and starting line ????? We have changed the height of the tree to 95" from ground to center of pre stage bulb about 3 years ago. Also guard beam was changed to 13.5 inches 3 years ago.