ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Cylinder Head Porting and Polishing for Enhancing Engine Performance

Updated on January 19, 2012

Friends, this time I am covering one of the most important tips for enhancing engine performance which comes under section of car care and maintenance. This is by doing engine cylinder head porting and polishing. It is also an important factor responsible in changing overall engine performance characteristics of automobiles. In an internal combustion engine, head porting and polishing is one aspect that turns a race engine into further improved and better performing engines whereas it changes a normal production engine into almost a racing engine with much better performance. Cylinder head porting and polishing is actually modifying the intake and exhaust ports to improve airflow quality and quantity. Cylinders, produced by automobile manufacturers, are suboptimal in nature due to manufacturing and design constraints in front of the automotive company, thus the consumer never receives an engine which performs up to its real potential. Head porting is one such thing which greatly helps an automobile’s engine to attain or achieve its optimum performance capability. Air, though light in nature, can prove to be a big hurdle for any automobile engine to perform if not controlled and directed properly into it. Moreover, at high speeds, characteristics of air tend to get heavy and thick which can be taken care of by head porting.

Cylinder Head porting includes full race porting and valve job.
Cylinder Head porting includes full race porting and valve job. | Source

How to Build, Modify & Power Tune Cylinder Heads

Areas to Take Care of While Cylinder Head Porting

While considering cylinder head porting as an important step for enhancing engine performance, you should keep in mind that this process is a highly complex job and has to be performed very carefully. Cylinder head porting contains lots of technical points to keep in mind.

For instance, considering the airflow via the intake port, greatest destruction remains the downstream valve due to destruction of air pressure recovery. Due to the design nature of company manufactured engines, this air pressure destruction recovery is almost unattainable in the intake valve.

In exhaust ports on the other hand, opposite condition exists and you are able to control geometry downstream of namely the valve seat which is the highest speed section. This allows good air pressure recovery making an exhaust port have better airflow than an equal sized intake port.

Now as the expanding of loss of air pressure into the cylinder is for sure, the rest of the port plays an important role. Here are some of those critical areas which pass maximum air at top speed for longer duration:

  • Configuration of valve seat on port
  • Cylinder swirl
  • Cylinder tumble
  • Surface finish
  • Shape of cylinders
  • Cross section
  • Volume

So we must always remember that well shaped cylinder ports will always have fewer dead spots and will help in achieving better engine performance for a car or any other automobile.

Comments

    0 of 8192 characters used
    Post Comment

    • profile image

      Revo Remapping 

      7 years ago

      Another enjoyable hub, I am very impressed with your knowledge.

      You have highlighted and clearly explained a very important tip which when following your advice can dramatically improve your engines performance.

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)