Track Terminology
4th Gear Member
Joined: Sep 2006
Posts: 1,240
From: Wooster OH
RE: Track Terminology
A perfect reaction time for a full tree is .500 seconds
Basically just watch the process for a while until you are comfortable, and then pay attention to the people running the track. Those are the best ways to stay out of trouble.
4th Gear Member
Joined: Aug 2005
Posts: 1,940
From: alberta, canada
RE: Track Terminology
ORIGINAL: TRBOPWR
IHRA sanctioned tracks use .000 tree
NHRA .500 tree
Some tracks use .000 light, just depends on your local track. Other than that he covered the majority of the terms I think.
Basically just watch the process for a while until you are comfortable, and then pay attention to the people running the track. Those are the best ways to stay out of trouble.
A perfect reaction time for a full tree is .500 seconds
NHRA .500 tree
Some tracks use .000 light, just depends on your local track. Other than that he covered the majority of the terms I think.
Basically just watch the process for a while until you are comfortable, and then pay attention to the people running the track. Those are the best ways to stay out of trouble.
)
1st Gear Member
Joined: Oct 2007
Posts: 143
From:
RE: Track Terminology
That is true about the speed trap lights, I stand corrected.
As far as the RT light goes, I've only ever raced at NHRA tracks (both 1/8 and 1/4) and they were always on a .500 or .400 system as per competition rules. Maybe some tracks go to a .000 system for non-competition events (like street nights).
As far as the RT light goes, I've only ever raced at NHRA tracks (both 1/8 and 1/4) and they were always on a .500 or .400 system as per competition rules. Maybe some tracks go to a .000 system for non-competition events (like street nights).
5th Gear Member
Joined: Mar 2006
Posts: 3,893
From: arizona
RE: Track Terminology
ORIGINAL: TOOT
Some traks don't give u the option of going around, ie Atco.
ORIGINAL: fazm
******* = guy in civic on street tires going through water box
******* = guy in civic on street tires going through water box
5th Gear Member
Joined: Jul 2004
Posts: 4,438
From: St. Louis
RE: Track Terminology
I race at Gateway International Raceway. They use a .000 tree for test and tune (with the three ambers lighting up seperately) and a .400 pro tree for Midnight Madness.
You are correct.
This means, as navyscott alluded to,that what is listed as your trap speed on your slip is not actually how fast you were going at the finish line, just your average speed over the last 66 feet.
They used to put the trap speed beams after the finish line, but guys were staying on the throttle after they crossed in an effort to get a nice mph on their timeslips. You can imagine what kind of problems arose.
ORIGINAL: AmericanSpeed
I thought that the trap photocells were located at 66' (1/20 of the track length) before the finish line and one at the finish line with the last one stopping both the et clock and the speed clock?
I thought that the trap photocells were located at 66' (1/20 of the track length) before the finish line and one at the finish line with the last one stopping both the et clock and the speed clock?
This means, as navyscott alluded to,that what is listed as your trap speed on your slip is not actually how fast you were going at the finish line, just your average speed over the last 66 feet.
They used to put the trap speed beams after the finish line, but guys were staying on the throttle after they crossed in an effort to get a nice mph on their timeslips. You can imagine what kind of problems arose.
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