Vz-30 Camshaft, .507 Lift, 298 Duration, Drag Only

OVERVIEW

When it''s time to stop playing around on the street and start dominating the 1320, the Engle VZ-30 Camshaft is the weapon of choice for serious air-cooled drag racers. This isn''t your average "performance" cam; it is a dedicated competition grind designed specifically for high-revving, high-output Type 1 engines that live at wide-open throttle. The VZ series is legendary in the Volkswagen community for its aggressive ramp speeds and massive lift profiles, and the VZ-30 sits right in the "sweet spot" for medium to large displacement drag engines. By providing a staggering .507 inches of total lift when used with standard 1.1:1 rockers, this cam ensures that your cylinder heads are breathing to their absolute maximum potential, squeezing every ounce of horsepower out of your combustion chamber during those critical seconds on the track.

Engineering a drag-only engine requires components that can withstand extreme stress, and Engle delivers with a high-strength billet steel construction that resists torsion and wear under the pressure of heavy-duty valve springs. The 108-degree lobe center is optimized to provide a power band that hits hard and stays strong all the way through the top end, making it ideal for lightweight dragsters, floor-pan cars, and high-performance sand rails where low-end idle stability is sacrificed for raw, unadulterated speed. To ensure the longevity of your build, this camshaft requires a high-quality bolt-on cam gear and must be paired with a fresh set of high-performance lifters. When you install an Engle VZ-30, you aren''t just installing a part; you''re installing decades of racing heritage and the same profile used by champions across the globe to secure their place in the winner''s circle.

FITMENT

The Engle VZ-30 is designed for high-performance competition use in the following air-cooled Volkswagen applications:

• Volkswagen Type 1: Beetle, Ghia, and Thing (1600cc based cases and larger).
• Volkswagen Type 2: Bus, Transporter, and Kombi (Up to 1971 with Type 1 upright engine configurations).
• Volkswagen Type 3: Fastback, Squareback, and Notchback (Performance builds using Type 1 cases).
• Dune Buggies & Sand Rails: Custom competition builds utilizing the VW air-cooled flat-four platform.
• Engine Cases: Compatible with early and late "flat cam" or "dish cam" oil pump styles depending on the bolt-on gear selected.

SPECS

Technical specifications for the Engle E6030 VZ-30 Camshaft:

• Application: Competition Drag Racing Only.
• Valve Lift (1.1:1 Rockers): .507 Inches.
• Cam Lift: .461 Inches.
• Advertised Duration: 298 Degrees.
• Duration @ .050": 262 Degrees.
• Lobe Center: 108 Degrees.
• Material: High-Strength Billet Steel.
• Drive Style: 3-Bolt Bolt-On Gear (Gear sold separately).
• Required Components: New lifters must be used for break-in; high-performance dual valve springs recommended.

PRO TIPS

1. Crucial Valvetrain Clearance Checks

When running a camshaft with over .500 inches of lift like the VZ-30, "drop-in" installation is a myth. You must meticulously check for coil bind on your valve springs, ensuring you have at least .060 inches of safety margin before the springs are fully compressed. Additionally, verify the clearance between the valve stem seal/guide and the bottom of the retainer at full lift. It is also common to encounter interference between the cam lobes and the connecting rods or the engine case itself in long-stroke "stroker" engines; always "clearance-test" the rotating assembly by hand before final assembly to prevent catastrophic internal damage.

2. The Critical Break-In Procedure

Flat-tappet camshafts like the Engle VZ-30 are most vulnerable during the first 20 minutes of operation. Never use standard "off-the-shelf" modern passenger car oil for break-in, as it lacks the necessary Zinc (ZDDP) levels. Use a dedicated high-zinc break-in oil and plenty of assembly lube on the lobes and lifter faces. Once the engine fires, immediately bring the RPM up to between 2,000 and 2,500 and vary it slightly for 20 minutes. Do not let the engine idle during this period, as the camshaft relies on the "splash" lubrication from the crank to survive this critical hardening phase.

3. Matching the Power Band

The VZ-30 is a "Drag Only" camshaft for a reason; its duration and lift profile are designed for high-RPM efficiency. To get the most out of this cam, your entire engine combination must be "in sync." This means using high-flow cylinder heads (such as CNC-ported wedges or big-valve heads), high-compression ratios (typically 10.5:1 or higher), and large-diameter carburetors (like dual 44 or 48 IDFs/IDAs). If you pair this cam with restrictive stock-style components, you will lose low-end drivability without gaining the top-end horsepower the VZ-30 was designed to deliver. Don''t forget to use heavy-duty chromoly pushrods to eliminate valvetrain flex at high RPM.