Supertech Single Valve Spring and Titanium Retainer Kit for Audi R8 4.2L 32v V8 FSI Engines
Set of 32 Single Valve Springs & 32 Titanium Retainers
SPRK-A2416-V8
Type: Single Spring
Outer Spring: OD 24.00mm - ID 16.50mm
Inner Spring: None
Press.Seat Intake: 73lbs @ 37.40mm
Press.Seat Exhaust: 85lbs @ 36.00mm
Max Lift Intake: 12.50mm
Max Lift Exhaust: 11.00mm
Coil Bind: 24.90mm
Rate: 10.50mm
Retainer: RET-A2416/N2
Spring: SPR-A2416-V8
Our valve springs are computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue. We also utilize computer software that allows us to ensure that the harmonics are under control. All Supertech valve springs are made with premium super clean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms. Using high quality steel alloy also provides the added benefit of better structural memory for all of our springs, giving your performance racing engine a serious competitive advantage.
Supertech retainers are manufactured with high quality military certified Titanium alloy, and are CNC machined for a tight fit. Our high quality retainers are among the best in the industry.