K-series CR Lite Retainers
CR LITE Retainers are experimental K-series dual valve spring retainers produced for us by Si Valves. They are made from hardened Chromoly steel and then swiss-cheesed with 6-holes to simultaneously shave some grams while providing lubrication to the valve springs top mating surfaces. The idea behind these came from engine building from the moto-x world.
Why Chromoly?
For durability and longevity.
While chromoly cannot compete with titanium’s’ feather light properties, it can certainly outlast Ti 5x over in durability. Performance and weight wise we wanted to find a happy medium between factory OE steel and titanium retainers, chromoly fits that bill. If you know anything about valvetrain component motion chaos, retainers spin around at an ungodly rate. Ti retainers are known to wear thin over time from this spinning behavior and can potentially break/cave in at some point and cause engine catastrophe if not inspected periodically. Not an issue with chromoly retainers!
CR Lite retainers are currently in a testing phase.
// Technicals
16pc dual valve spring retainer set.
Retainer Weights: CR Lite 12g | CR 13g | OE DVS 13g | OE SVS 14g | Ti 7.8g
K-series & S2000 (F20C/F22C) engine compatible.
Not compatible with aftermarket beehive type vsprings.
// Notes
Compatible K engines equipped w/OEM dual valve spring valvetrain:
2002 to early 2003 K20A2 | JDM DC5/EP3 K20A Type R | 00-09 S2000 (F20/F22)
Incompatible K engines w/OEM single valve spring valvetrain:
03-06 K20A2/K20Z1 | 06-11 K20Z3 | 04-08 K24A2 + JDM K24A RBB | K24Z + JDM K24A R40
A dual valve spring upgrade requires the following:
Dual valve spring set | dual valve spring base seats | 7-degree 5.5mm keepers/locks
(OE single vspring valvetrain components are completely incompatible with a dual vspring conversion!)
K-series Billet Power Steering Pulley
K-series Billet Power Steering Pulley
H4H LED Bulb Base Adapters
H4H LED Bulb Base Adapters
K-series Throttle Cable & Bracket
K-series Throttle Cable & Bracket
Shift Knobs