Fk-89 Camshaft, .582 Lift, 328 Duration, Drag Only

OVERVIEW

When you are building a dedicated competition powerhouse, there is no room for compromise in your valvetrain geometry or profile. The ENGLE Fk-89 Camshaft represents the pinnacle of high-revving performance for the serious air-cooled drag racer. Engineered specifically for use with high-ratio rockers, this camshaft delivers a staggering .582 inches of lift when paired with 1.4:1 rockers, providing the aggressive valve opening necessary to feed high-displacement, high-flow cylinder heads. Engle has been the industry standard for decades, and the FK-89 continues that legacy by offering a billet steel construction that ensures maximum rigidity and longevity under the extreme stresses of the drag strip. This isn''t just a component; it''s the heartbeat of a winning engine program designed to dominate the quarter-mile.

The Fk-89 is strictly classified as a Drag Only camshaft due to its massive 328-degree duration and 282-degree duration at .050 inches. This profile is optimized for a narrow, high-RPM power band where every millisecond counts. To achieve the intended performance and prevent catastrophic failure, this cam must be installed with brand-new lifters and requires a high-quality bolt-on cam gear. Because of the extreme lift, builders must be meticulous regarding valve-to-piston clearance and coil bind settings. If you are looking to squeeze every possible ounce of horsepower out of your Type 1 based competition engine, the Engle FK-89 provides the lift and duration required to move massive amounts of air and fuel, ensuring your Volkswagen stays at the front of the pack.

FITMENT

This camshaft is designed for Volkswagen Type 1, 2, and 3 air-cooled engines utilizing a performance-oriented case. It is intended for competition use only.

• VW Type 1: Beetle, Ghia (All years with performance builds)
• VW Type 2: Bus, Transporter, Kombi (Up to 1971 with Type 1 based engines)
• VW Type 3: Fastback, Squareback, Notchback
• Custom Engines: Sand Rails, Dragsters, and Dune Buggies utilizing AS41 or Aluminum cases
• Note: Requires 3-bolt style bolt-on cam gear (not included).
• Note: Designed for use with 1.4:1 or 1.5:1 ratio rockers.

SPECS

The following technical specifications define the aggressive profile of the Engle FK-89:

• Part Number: E6089
• Total Lift (with 1.4 Rockers): .582 Inches
• Total Duration: 328 Degrees
• Cam Lift: .416 Inches
• Duration @ .050: 282 Degrees
• Lobe Center: 108 Degrees
• Material: High-Strength Billet Steel
• Gear Requirement: Requires Bolt-On Cam Gear (3-bolt pattern)
• Application: Competition Drag Racing Only

PRO TIPS

1. Prioritize Proper Break-In Procedures

With a camshaft as aggressive as the FK-89, the initial break-in period is the most critical stage of your engine''s life. You must use a high-quality assembly lube on the lobes and always pair the new cam with brand-new, high-quality lifters. Upon the first fire-up, ensure the engine stays between 2,000 and 2,500 RPM for at least 20 minutes without idling. This ensures proper oil splash lubrication and allows the cam lobes and lifters to "mate" correctly. Using a high-zinc (ZDDP) break-in oil is non-negotiable to prevent premature lobe flat-spotting or galling.

2. Validate Valvetrain Clearances Meticulously

The .582 lift provided by the FK-89 pushes the limits of standard valvetrain components. You must check for "coil bind" on your valve springs, ensuring there is at least .060 inches of remaining travel before the coils touch at full lift. Additionally, you must perform a clay test to verify valve-to-piston clearance. Because this cam stays open for a massive 328 degrees, the window of safety is much smaller than a street cam. Don''t forget to check the clearance between the rocker arms and the valve covers, as high-ratio rockers often require clearancing or spacers.

3. Match Your Components for High RPM

The FK-89 is designed to live in the upper RPM ranges, which means your supporting hardware must be up to the task. We strongly recommend using dual or triple valve springs with high seat pressure, chromoly pushrods to prevent flexing, and a high-capacity oiling system to handle the heat. This cam works best with large-diameter exhaust systems (1-5/8" or 1-3/4") and high-cfm carburetors or EFI throttle bodies. If your intake and exhaust don''t flow enough to match the FK-89''s duration, you will lose the performance benefits of this high-lift profile.