Trans Dapt NHRA Legal Driveshaft Loops

Racking up 11-second time slips used to be a nearly unattainable goal for weekend warriors, but it’s now commonplace to see street driven muscle cars pulling the front wheels and breaking the 10-second barrier thanks to modern launch controls and powerful new engine tech. Cars running this fast must meet strict NHRA safety regulations, one of which is the requirement for a driveshaft loop. 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.

NHRA rules require a driveshaft loop on any vehicle that runs the quarter mile quicker than 13.99-seconds while running slicks or quicker than 11.49-seconds on street tires. The reason for this requirement is to keep the driveshaft from digging into the ground or piercing the floorpan of the vehicle in the event of a front universal joint failure, possibly causing a sudden loss of vehicle control or serious injury to the driver. To comply with these rules, Trans Dapt’s driveshaft loops are made out of two-inch wide, quarter-inch thick steel and are powder coated for corrosion resistance.

Recognizing that the 1993-2002 Camaro/Firebird 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 for these vehicles. The F-Body loop (Part# 4141) replaces the light duty factory crossmember, fits both automatic and 6-speed manual transmission models, and provides clearance for up to a 2.5-inch y-pipe. The Fox Body Mustang loop (Part# 9813) fits snug to the floorpan for maximum clearance and is predrilled for easy installation. For all other applications, the universal bolt-in driveshaft loop (Part# 4140) is adjustable to be compatible with just about any vehicle’s driveshaft height.

Trans Dapt driveshaft loops come with all hardware necessary for installation and meet all current (2013) NHRA regulations for safety equipment. For more information on Trans-Dapt’s driveshaft loops please call (562) 921-0404 or visit

New Valvetrain Components Available from Trick Flow Specialties

Your high performance engine is only as good as the components you build it with. Don’t skimp on the details—build a longer lasting, better performing engine with Trick Flow Valvetrain Components.

Trick Flow Valve Spring Retainers, Valve Spring Cups, Spring Shims, and I.D. Locators are made from 4140 chromoly steel, through-hardened for long life, and black oxide coated.

Trick Flow Titanium Valve Spring Retainers substantially reduce weight and are incredibly strong to safely and reliably build rpms faster.

Trick Flow Viton®* Fluoroelastomer Valve Stem Seals feature a posi-stop design to prevent oil from leaking into the valve guides. Fits all cast iron and aluminum cylinder heads. Available now — visit for additional information.


Designed for naturally aspirated engines, X16 is an economically priced option for two and four-stroke engines with compression ratios of up to 16:1 and for engines using nitrous up to 300 HP. “X16 offers the power and protection of leading 116 octane racing fuels for a lower price and is an ideal fuel for a wide array of motorsports applications,” said Jim Kelly, VP’s Regional Manager-Race Fuel Sales. “For extreme nitrous applications, we continue to recommend the superior performance and engine protection of VP’s C16, NO2 or C23. For forced induction applications, we recommend C16 or Q16. For racers that are used to fuels like Maximal, they’ll really like X16’s performance and price!”  X16 is now available in pails and drums throughout VP’s extensive dealer and distributor network.

For more information or to locate your nearest VP dealer, visit Tech questions can be directed to VP’s Tech Support staff at 812-878-2025 or