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Drag Tire Roll Out Measuring Procedure by Mickey …
https://helpcenter.jegs.com/hc/en-us/articles/115012013107-Drag-Tire-Roll-Out-Measuring-Procedure-by-Mickey-Thompson
Drag Race Rollout Part I - RacingJunk News
https://www.racingjunk.com/news/drag-race-rollout-part-i/
Port-A-Tree’s Al Smyth tells us: “Track personnel use a rollout wheel – 22-inches or 24-inches in diameter. They raise and lower the beams to make sure the rollout is equal in both lanes. In terms of height, the rollout for a 24-inch wheel is best when the beam is …
Rollout (drag racing) - Wikipedia
https://en.wikipedia.org/wiki/Rollout_(drag_racing)
Rollout or rollout allowance in North-American drag racing is the difference between actual acceleration time and measured acceleration time. For the published 0 to 60 mph acceleration time in North America, a rolling start is used, beginning 1 foot (0.3 m) after the initial standing start position. The method approximates the behaviour of dragstrip measurement equipment …
Drag Tire Roll Out Measuring Procedure by Hoosier
https://helpcenter.jegs.com/hc/en-us/articles/115012167208-Drag-Tire-Roll-Out-Measuring-Procedure-by-Hoosier
Measurement Procedure: 1. Once the tire is mounted to the wheel inflate to 20 PSI and then start deflation. 2. Once the tire reaches race pressure (6 PSI for big tires and 12 PSI for small tires) use ¼” wide measuring tape and place it around the center of the tire. 3.
Drag Race Rollout Part II - RacingJunk News
https://www.racingjunk.com/news/drag-race-rollout-part-ii/
Front race tire diameters can range from 22-inches all the way up 30-inches (perhaps more). In the Pro end of the equation, the dragster tire in the first photo measures 22 X 2.5 X 17-inches. Meanwhile, the Pro Stock tire in the second photo measures 25 X 4.5 X 15-inches. There’s a lot of tire choice out there. Drag Race 101.
how do you determine the roll out on your car ? - DragStuff
https://www.dragstuff.com/forum/viewtopic.php?t=184
Put a tape measure under the plumb bob and move the tape to an even number like 1 foot. Roll the tire forward until the rear edge of the front tire passes the beam and shuts off the lights. Look down at your measurement on the tape and count the inches you have moved. Thats your rollout.
What's My Rollout? by Al Smyth, Portatree Timing Systems, Inc.
https://portatree.com/media/ecom/html/pdf/TechTip-Rollout.pdf
Track sets up the height of the beams on the race track and if they are set too high, the rollout is increased (harder to red light). If they are set low, the rollout is decreased (easier to red light). The track also has control of traction. If the track is slippery (tires spin) then you …
Retractable Tire Rollout Tape Measure - Quarter-Max Chassis
https://quartermax.com/retractable-tire-rollout-tape-measure/
Description. Our new retractable roll out tape measure allows you to quickly and accurately measure roll out. The 120" polyester tape easily wraps around slicks without kinking and retracts into its convenient 2-1/4" diameter case with the push of …
Hoosier Drag Tire Rollout (Circumference) Measuring …
https://www.jegs.com/installationinstructions/500/522/hoosierdragtirerollout.pdf
Hoosier Drag Tire Rollout (Circumference) Measuring Procedure . Roll out is the number of inches the tire rolls before it has traveled back to its initial starting point. Measurement Procedure: 1. Once tire is mounted to wheel inflate to 20 PSI and then start deflation. 2.
The Importance of 'Rollout' - Car and Driver
https://www.caranddriver.com/features/a18202575/the-importance-of-rollout/
The Importance of 'Rollout'. The first few inches of a drag strip. Larry Webster. May 1, 2005. Should the owner of one of these performance meters want to compare its performance against the ...
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