Drag Illustrated Issue 180, January / February 2023 | Page 84



■ Wheel studs are an important part of any driveline , and ARP has long focused on manufacturing premium grade replacements for factory and aftermarket applications . In addition to press-in studs for most all domestic and sport compact vehicles , the company has screw-in studs for aftermarket axles . The most recent addition to the line , p / n 100-7738 , has a 1 / 2-20 thread and an underhead length of 1.950 .”
Like other ARP wheel studs , they are manufactured from 8740 chrome moly steel and heat-treated to a nominal tensile strength of 190,000 psi ( some 26 % stronger than Grade 8 hardware ) and cadmium plated for extra durability .
Threads are rolled ( not cut ) to provide up to 10-times better fatigue life .
Obtaining the optimum stud length is an important consideration , and ARP offers 1 / 2-20 screw-in studs up to 3.470 ” underhead length .
Many racing associations require the stud to protrude from the lug nuta distance equal to its diameter .
ARP fasteners are proudly manufactured in-house at the firm ’ s California facilities . Details on the complete product line , as well as important tech info , are in the new 2023 catalog . View it online at www . ARP-bolts . com or request your free printed copy .


■ Noted fastener manufacturer ARP has just published its updated full-line catalog for 2023 . The 180- page , full color publication , details the 5,000-plus fastener kits manufactured by ARP — plus valuable tech information . Several dozen pages are devoted to the science of fastener manufacturing and their proper use .
In addition to the many kits covering engine , driveline and accessory fasteners , the catalog details the many specialty products and tools that facilitate efficient engine assembly .
The catalog can be view online , dowloaded as a PDF , or a printed version requested at www . ARPbolts . com . Special Product Guides for Chevy LS / LT , Ford Coyote , or
Chrysler Gen III Hemi engines are also available for downloading . Personalized technical assistance is available by calling 800-826-3045 .


■ FuelTech continues their support at the XDA as the title sponsor of the FuelTech Bike Bash at Virginia Motorsports Park on August 25-27th .
FuelTech is an international company specialized in developing and manufacturing state of the art performance engine management systems . The company ’ s elite staff , always keeping a grip on the forefront of technology available , guarantees top notch quality and constant innovation .
The product line ’ s greatest advantage is its overall simplicity , from its painless installation to real time tuning in just hours , depending on the application . Their FT series ECU ’ s built-in interface is a complete set that allows the user to have full control of the engine without the need of a PC , emphasizing the on the spot , do it yourself concept .
FuelTech ’ s craftsmanship and technology is built on extreme performance and proof comes from where it matters , the race track . Excellent record breaking track results on a wide variety of racing classes such as Sportsman , Pro Drag , Circuit , Off-Road , Rally , Motorbike and Marine applications testify our commitment to attain the best results , everywhere we compete . Developing and designing high performance products since 2003 , FuelTech will surely have a product to fulfill your needs .
A huge thank you goes to Nathalia de Leon and the rest of the gang from FuelTech for their support of the XDA racers !
For more info on FuelTech , visit their website at www . FuelTech . net
Support the companies that support your sport !
For more information about the XDA , please visit www . XDAracing . com


256.383.6868 PTCRACE . COM
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