Comp Cams Retro-Fit Hydraulic Roller Camshafts

Comp Cams Retro-Fit Hydraulic Roller Camshafts

Comp Cams Retro-Fit Hydraulic Roller Camshafts

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Retro-Fit Hydraulic Roller Camshafts

Comp Cams Hydraulic Roller

Common Usage: Mild street performance to mild race

Key Benefits: Modern, aggressive roller profiles, reduced friction, low maintenance, reduced valve train noise, more power than conventional hydraulic flat tappet camshafts

Limitations: Increased cost, limited rpm range, profile limitations

These cams contain all of the same benefits and limitations as a standard hydraulic roller cam; however they include a specialized base circle to accommodate the taller hydraulic roller lifters in blocks that were factory equipped with a flat tappet valve train set-up.


Camshaft Families

Understanding the COMP Cams® camshaft families is a great first step in determining which camshaft is right for you

Today, there are a huge number of aftermarket performance camshafts available. Your challenge: find the right one for your engine application. As you start to research the right cam for your engine, you’ll need to take into account the application and vehicle. Other important details include the engine, transmission, rear gearing, fuel induction system, weight of the vehicle, type of vehicle and all the rest. As any knowledgeable technician can tell you, selecting a camshaft solely based on the fact that it fits your type of engine is a sure recipe for disaster.

Within the COMP Cams® camshaft family,, there are several different types of camshafts available for most popular domestic engines ranging from the Xtreme Energy Cams™ to Nitrous HP™ Cams. So, which one is right for your application? Call Keith Craft today at 870-246-7460 and find out which camshaft family best suits your needs. Any time you are making this kind of important decision about your engine, it’s smart to understand the reasoning behind the selection.

All in the family

While it is important to understand the attributes of the various camshaft families, it is equally important to note that camshaft selection is a individual as the personalities of a customer and his engine. What is perfect for one buyer, regardless of the engine platform, may be totally incorrect for another. In essence, the camshaft family is a good place to begin, but you could end up with a camshaft that is very different from what you originally planned.

Fanning through the COMP Cams® catalog can be a fun endeavor, and while many of the camshafts are categorized by a camshaft family name, more often that not the key determiner is the end usage. Drag racing, pulling/towing, oval track, marine, Nostalgia Plus™, factory muscle or even something like the Tri-Power Xtreme™ are all categories you will discover. It can be confusing for the novice cam buyer – but that is to be expected of a highly technical product such as a camshaft. That’s why a quick call to Keith Craft can help clear the air.



Pure Energy™
Benefits:
50-State legal emissions legal for carbureted engines
Mild performance gains over the factory camshafts
Important Considerations:
Work with factory stock components
Great daily driver style camshafts

High Energy™
Benefits:
Work well with mainly stock components (rockers, manifolds, heads, compression, converters, gears…)
Good blend of efficiency and performance
Perfect choice for performance rebuilds
Important Considerations:
Not the optimum choice for racing applications
Great choice for engines where performance upgrades are not planned

High Energy Marine™ Cams
Benefits:
Good for OEM replacement with mild performance gain
Increased torque and power improvement
Easy drop-in installation
Important Considerations:
Great for stock rebuilds
Camshafts deliver improved performance over stock
Works with factory configuration engine components

Magnum Cams
Benefits:
Great high rpm power
Easy on valve train parts
Can be used with mild ratio rocker arms and traditional performance valve springs
Important Considerations:
Really need converter and gear change
These like compression (9.5:1 & up)
Larger Magnums are a little lazy at low rpm

Xtreme Energy™
Benefits:
Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
More vacuum allows a step up in duration for greater performance
Best seller; excellent all around performance in street carbureted applications
Important Considerations:
Work best with COMP Cams® roller rockers and matched valve springs
Require other performance parts (intake manifold, headers, etc.) for best performance

Thumpr™
Benefits:
Great sound (early exhaust opening and more overlap)
Great power (new lobe designs give great area and air flow)
Great mid-range response (early intake closing traps more air)
Important Considerations:
Minimal engine vacuum – requires mods for any vacuum accessories such as power brakes
Designed for use only with valve train upgrades including COMP Cams® Beehive™ Valve Springs and roller rockers
Works best with looser converters, more rear end gear and other performance engine modifications

Xtreme 4x4™ Cams
Benefits:
Improved throttle response and increased low and mid-range rpm horsepower
Designed for use with common restrictive factory exhaust system including OEM exhaust manifolds
Feature latest camshaft technology in lobe design
Important Considerations:
Both towing and off-roading camshaft profiles available
Features aggressive lobe profiles with short duration specs
Excellent for Jeeps and off-road vehicle use

Xtreme Marine™
Benefits:
Extremely wide powerband helps get boat on plane while making max horsepower
Power enhancement helps maintain top end speed
Feature latest camshaft technology in lobe design
Important Considerations:
Intended for applications where low idle speeds are required
Work well against exhaust systems with restrictive back pressure
Available for Small and Big Block Chevy as well as Big Block Ford

Dual Energy™
Benefits:
Similar to High Energy Cams™, but may work better at high rpm when coupled with headers because of added exhaust duration
Work great with most stock components
Very flat torque curve for great streetability
Important Considerations:
Do not work well with restrictive exhaust systems
Larger exhaust does not give a sharp early torque peak
Our other cams make more power if other components are changed

Nostalgia Plus™
Benefits:
Specifically designed to capture the essence of the original 1960s muscle car style
Delivers improved muscle car sound and horsepower
Newer technology lobe design delivers increase throttle response & torque
Important Considerations:
Combines famous factory cam performance with more modern technology
Excellent sound improvement through camshaft specifications (with similar vacuum characteristics to its muscle car era counterparts)

Factory Muscle™
Benefits:
Reproduction of factory original muscle car camshaft
Produce more torque and horsepower than original factory camshaft
Maintain efficiency and drivability of the engine
Important Considerations:
New computer controlled aided design avoids previous factory design compromises
Tailored to work with high compression engine of the 1960s and 70s
Best choice for “era-correct” engine rebuilds

Nitrous HP™
Benefits:
Wider lobe separation and added exhaust duration from base XE series help shift the power to higher rpm where it can be used in nitrous applications
Early exhaust opening helps scavenge the extra spent gasses out from nitrous or forced induction
Better time slips for nitrous passes at the strip
Important Considerations:
Slight sacrifice of some torque and responsiveness to the base XE family for improved performance with nitrous oxide
Works best with COMP Cams® roller rockers and matched valve springs
The big question is which time slip matters more to you (normally aspirated or N2O-assisted)?
*(Depending on duration)

Computer Controlled
Benefits:
Replacement camshafts for OEM EFI engines
Wide variety of camshaft sizes available for significant power gains
Available for electronic fuel injected, throttle body injected and tuned port injected engines
Important Considerations:
Available for both stock and modified computer systems

XFI™
Benefits:
Newest and quickest lobe profiles in the Xtreme family and provide a terrific increase in performance
Tuned for use in EFI applications where extra air flow signal through the carburetor is not required (feature wider lobe separation without loss of responsiveness)
Work well with aftermarket cylinder heads and feature high lift
Important Considerations:
Xtreme Energy™ Cams are more responsive in carbureted applications
Designed for use with COMP Cams® Beehive™ Springs and roller rockers
Really need other performance parts to shine

Tri-Power Xtreme™
Benefits:
Three different camshafts offered for each engine platform
Camshaft designs are targeted to improve horsepower, torque or fuel efficiency
By decreasing pumping losses, efficiency and performance are enhanced, regardless of camshaft selected
Important Considerations:
Made for factory fuel injected engines
Best mileage gains require use of programmer

Blower & Turbo
Benefits:
Specifically designed for maximum power on supercharged and turbocharged street and street/strip applications
Available in mild to aggressive cam specifications
Important Considerations:
Custom grinds available for more efficient turbo applications
Turbo grinds avoid excessive exhaust valve opening duration, which is not required

Xtreme Turbo
Benefits:
Helps build pressure between engine and turbo for faster spool up
Delivers wide powerband without compromising peak power
Designed to focus on systems with similar boost to back pressure ratios as seen on most modern turbo systems
Important Considerations:
Limited to 6500 rpm peak
Requires lower back pressure system

LSR™
Benefits:
Take advantage of today’s newer and better flowing aftermarket cylinder heads
Feature higher exhaust duration and overall to provide broadest powerband and most top end power of any COMP® LS cam
27 Unique grinds for both cathedral and rectangle port cylinder heads
Important Considerations:
Require 26926-16 high pressure valve springs
Available in different cores. Please refer to chart on pages 186-187 to make sure you order the correct part number.

Racing Cams
Benefits:
Features a wide assortment of racing camshafts for all application requirements of drag, oval track and puller & mud competitors
Important Considerations:
Require accurate assessment of rear end gearing and other vehicle-based equipment to deliver top performance
Not made for street use or vehicles requiring accessory drive equipment, such as power brakes, air conditioning, etc.

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