Penske Racing Shocks is an official supplier to numerous racing teams flying the General Motors banner including reigning Prototype champions Action Express Racing and 2016 NASCAR Sprint Cup Series champion Jimmie Johnson. The well regarded brand is also the official supplier for the new Cadillac DPi-V.R racecar and, according to motorsports publication Turnology, developed an all-new damper specifically for the all-new Prototype.
The new damper was engineered using know-how Penske Racing Shocks obtained developing its 8780 damper, which was made specifically for the DW12 Dallara IndyCar. The shock controls compression and rebound damping separately and also rids of complicated spool valves for a simpler piston and compression and rebound shim setup.
Penske director of competition Aaron explained the advantages of the new through-shaft dampers to Turnology during the recent Performance Racing Industry trade show in Indianapolis.
“Our new ‘Thru-Rod’ damper designed for the 2017 Daytona Prototype international (DPi) LM P2 Cadillac build is a result of the trickle down effect from our Indycar shock that we have been successfully running for the last two seasons and Formula 1 now for the last 5 seasons, the damping has just been altered slightly,” Lambert said. “The shock separately controls compression and rebound damping using a standard four-way adjustable setup, but can be upgraded to six-way adjustability if necessary.”
“This kit also uses a piston and shim style setup, as opposed to the more complicated spool valve cartridges and things like that, which reduces the friction seen during operation and increases the responsiveness of the damping. The piston and shim also cuts down on the turnaround time since servicing and assembling these shocks is much simpler.”
The Cadillac DPi-V.R participated in an official IMSA test at Daytona earlier this month and will undergo further testing at the hands of Action Express and Wayne Taylor Racing in January before the season opening 24 Hours of Daytona on January 28th and 29th.