福彩第二版

Camshaft Families

福彩第二版understanding the comp cams® camshaft families is a great first step in determining which camshaft is right for you.

福彩第二版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? while a simple call to the comp cams® cam help® tech line (1-800-999-0853) and short discussion with one of the highly informed tech line personnel will always get you the right answers, having a little personal knowledge on the topic is always a good idea. 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

福彩第二版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 the comp cams® cam help® tech line 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)?

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
  • Requires lower back pressure system

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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