nhra rule book driveshaft loop

I took this from a older NHRA rule book. Browse discover thousands of brands.

Driveshaft Loop Required W Slicks Nhra Rules Srt Hellcat Forum

As far as the NHRA rule book try doing a search in here or Performance or bench racing.

. Some tracks are more strict on enforcing the loop old rule was 12s-1390s but generally I think the new rule is 12s requires them. Mounting is not specific just that it has to be securely mounted. Apr 26 2018 12.

The bar contours the crossmember belly goes back about 5 and then a loop is welded to it. Recognizing that the 1993-2002 CamaroFirebird and 1978-1993 Ford Mustang are some of the most popular drag cars among amateur racers Trans Dapt made sure to have bolt-in solutions. Only show this user.

Most guys fasten them to the floorpan but a company makes one that attaches to the trans mount and extends back 6 past the u-joint. Jun 21 2005 Location. This means drilling the floor pan and I wont do that to mine.

About a month ago someone posted a link to download the NHRA rule book in one of these three forums. Trans Dapt Performance now offers affordable and easy to install NHRA-compliant driveshaft loops for 4th-Gen Camaros Firebirds and Trans Ams Fox-Body Mustangs and a universal bolt-in application. I went 6 inches per the NHRA rule book too.

1399 14-mile 859 18-mile or quicker. 2 are the existing tranny mount bolts and one. 5 Sep 19 2009.

I may want to run drag radials if it would eliminate having to use a loop. I know NHRA rules state it cant be further than 6 away from the yoke but I cant remember from reading my friends rule book if front or rear matters any. Overflow reservoir functioning neutral-safety switch seat belts and a valid state drivers license or NHRA competition license for all participants.

According to the 2019 NHRA rule book Section 2124 Driveline Page 11. Investigating this reveals that unless there is a crossmember to catch the front of the driveshaft which I dont have a car to check and in the past always holds the rear trans mount on old B and E cars leaving the shaft open ie needs loop NHRA rules shows it requires a driveshaft loop section 24. Driveshaft loop required on all cars running 1399 or qucker and utilizing slicks except vehicles running 1149 or slower equipped with street tires.

Bolt In Driveshaft Loop 67 -75 Mopar A Body. 24 DRIVELINE Drive shaft loop 6 inches from the front U Joint On any car in which the driver sits over or in back of the rearend center section a suitable protective shield of 120-inch 3 mm minimum thickness steel plate must be installed for those units with universal joints securely mounted to the rearend center. I believe this rule still stands.

-A driveshaft safety loop is required when you run slicks not drag radials or street tires. -A driveshaft safety loop is required when you run slicks not drag radials or street tires. Ad Free shipping on qualified orders.

I believe this rule still stands. I dont think you need a driveshaft loop but its good to have at least a front loop for your own safety-----1970 chevelle 406 - TH-350 - soon to be 411s. The front yoke of the driveshaft.

A driveshaft safety loop is required per the NHRA rule-book on any vehicle using slicks and running 1399 or faster in the 14 mile or 1149 or faster on any tire. Had to verbally describe it to another member should get a dig cam. Anyway its just a loop with a bar attached again just like a pocket clip for a pen tire guage etc.

NHRA rules require a driveshaft loop on any vehicle that runs the quarter mile quicker than 1399-seconds while running slicks or quicker than 1149. To comply with these rules Trans Dapts driveshaft loops are made out of two-inch wide quarter-inch thick steel and are powder coated for corrosion resistance. Sep 10 2005.

With street tires or drag radials no loop is required until 1149 14-mile 735 18-mile and faster. Beyond the NHRA rule requirement running a driveshaft safety loop is a good idea especially if youre still using the OE GM driveshaft. Most drag strips have adopted the rules and regulations of the National Hot Rod Association NHRA one of the largest drag racing sanctioning bodies.

Although like I said some tracks dont really enforce it it is still a good safety device to have. The driveshaft loop is required to meet the NHRA safety rules if the car is running 1399 and faster on slicks or 1300 and faster on street tires. The driver must wear long pants closed toe.

2021 to 2022 Rulebook Amendments. The rule book states. Only show this user.

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The rules require that the loop is mounted within 6 inches of the front U-joint on the driveshaft for support of the driveshaft in the event of a U-joint failure. I took this from a older NHRA rule book. In place of a crossmember in the vicinity of the front universal joint all cars in competition using open driveshafts must have a retainer loop 360-degrees of enclosure 14-inch 635 mm minimum thickness and 2-inches 51 cm wide or 78-inch 222 mm x 065-inch 165 mm welded steel tubing securely mounted and located within 6-inches 152 cm of the front.

These loops are made in the USA and are specd to fit both 2WD and 4WD applications. Free easy returns on millions of items. Jeff I dont.

With street tires or drag radials no loop is required until 1149 14-mile 735 18-mile and faster. Cars quicker than 1399-seconds in the quarter mile with sticky tires and cars faster than 1149-seconds in the quarter mile with stock tires. 1399 14-mile 859 18-mile or quicker.

Maximum of 6 behind the front U-joint made of 14 minimum thickness by 2 wide material or 78 X 065 welded tubing. 4 Jan 21 2010. NHRA Members call 1-800-308-6472 to receive a 30 percent discount.

Does it matter if it you put your driveshaft loop around the rear yoke vs. For a bulk-order form 10 or more copies contact NHRA Membership Services. 13s and street tires your all good but dunno what about drag radials or slicks.

2 Jan 3 2008.

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