Engine Kits

Power+Plus Crosswind & Whirlwind Manifolds

Power+Plus Crosswind & Whirlwind Manifolds lines of performance intake manifolds.

The Cyclone is Profesional products lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles. It is set up to accept a spread bore carb but comes with an adapter plate that permits the use of square bore carbs. To remain street legal with a square bore carb, you must use one that is also approved as street legal for your application.

The Whirlwind manifold is patterned after the popular JDM Type R manifold with some additional refinements. The plenum chamber has been lengthened to provide additional plenum volume when used with a supercharger, turbo or nitrous applications. Nitrous bosses are located on the underside of the manifold. Available in a highly polished show version, as well as a standard satin finish. The Power+Plus Whirlwind manifold also features a 65 mm inlet. This manifold was designed and developed with expertise supplied by the engineers at Advanced Engine Breathing Systems, one of the premier Honda tuners in the U.S. AEBS supplies blocks and cylinder heads for many of the most successful Honda racers in the country. AEBS won the NHRA 2001 Pro Import Championship and also won the NHRA 2002 Pro Import World Finals running their own car. The POWER+PLUS Whirlwind Manifold for Hondas is intended to be the ultimate street performance manifold. Unlike all-out racing manifolds, good bottom end power is retained. Note that the JDM Type R manifold is quite expensive while the Power+Plus, an improved version of the JDM, is much less costly.

As a result, Professional Products have been able to incorporate many new features in their manifolds not found in competitive models. Some of today’s most popular manifolds were designed 30 years ago and the makers have never bothered to update the tooling to include many of the new features desired by performance enthusiasts. Professional Products engineered those features into their manifolds.
Dual Distributor Holddowns Carburetor Adapter Plate
   
Sometimes the standard single distributor holddown is difficult to access. So Professional Products have provided dual distributor holddowns on all Power+Plus Chevy intake manifolds, which gives you an optional position.  And on their 52030 and 52031 Racing Manifold, you can use two holddowns for extra protection against distributor rotation.

Many Chevy manifolds accept the stock Rochester Quadra-Jet spread-bore carb. But if you want to use one of the popular Holley or Edelbrock square bore carbs, you have to spend more bucks for a carb adapter plate. Power+Plus manifolds with spread- bore patterns include steel adapter plates and gaskets to accept square bore carbs. Included with manifold

Nitrous Bosses Four Corner Water Ports
   

If you want to run nitrous with the injectors mounted directly in the ports, Power+Plus Manifolds provide a simple solution. Many of their manifolds include cast-in nitrous bosses which provide the extra thickness not found in most competitive manifolds without spending a lot more money. This extra thickness is necessary to provide the proper amount of thread engagement All you have to do is drill and tap the bosses to accept any manufacturer's nitrous injectors.
All of Professional Products performance manifolds feature two extra water ports at the rear of the manifold, a feature normally only found in manifolds costing hundreds more. Some enthusiasts have found that plumbing a line between these two rear ports can reduce engine overheating. Many racers also find these ports to be an advantageous special feature for plumbing special additional water lines
Water Divider Baffle Special Manifold Adapters
   
The Power+Plus #52030/52031 Manifold is designed for both racing and street applications. It has all the necessary bosses and tapped holes to accommodate street accessories yet it also includes every feature found in manifolds costing hundreds more. One trick feature is the Water Divider Baffle. Expensive race manifolds have this baffle cast in place in the manifold but this precludes the use of a thermostat if you want to use one. The Power+Plus Manifold is machined for a thermostat but the package also includes a drop-in Water Divider Baffle for those who desire this feature. All Power+Plus Street and High Performance Street Manifolds for small block Chevys come with special adapters that allow these manifolds to fit the '87-'95 cast iron heads. If you have '86 or earlier heads, or '87-'95 aluminum heads, their manifolds bolt right on without the adapters. For '87-'95 cast iron heads, drop the adapters in the four slotted holes and bolt up the manifold with no fuss and no special tools required.

 



This product is in the following categories:

HomeAir And FuelIntake Manifolds

Manufacturer:

Professional Products

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