Jump to content

Server Lease Renewal/Software Licenses

Our yearly server lease, software licenses, as well as hardware operating costs, ARE due Dec 6th, 2021. Our current donations have fallen far short of the funds we need to renew. Please remember the RennTech.org community is Member supported so please consider a donation to help...  THANK YOU!

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Are these spark plugs any good and if so can I get them for my box?


Recommended Posts

On a stock factory motor the chances of any improvement by using the most expensive, exotic, or any other type of spark plug is slim to none. You have a much better chance of having it run not as well as with the OEM plug. The factory engineers go to great lengths to have a stock plug perform as well can be in regard to ease of starting, correct heat range, maximum performance, fuel economy, and longivity.

Once you start changing the CR, cams, ignition system, fuel delivery system, a plug change may be in order.

Link to comment
Share on other sites

In a forced induction application we have seen some good results from the Denso Iridium plugs, they seem not to blow out as easily causing mis-firing.

One of the biggest problems with high HP cars is mis-firing on the plugs when your tuning on the dyno. When a plug mis-fires it doesn't burn any of the fuel. When the fuel doesn't get burnt the air isn't used up in the cylinder. The O2 sensor see's all this air that's not used during the combustion process and gives a lean reading. Then you have to guess if it's mis-fire or really running lean. Denso Iridiums have solved some of this problem when running 30psi on a 600 or so hp ish motor on the dyno.

Outside of when your running into a problem with your plugs, OEM stuff is just fine. You increase your HP by say 50hp or so with headers, exhaust no cats, intake, chip etc etc.. then a plug 1 range colder than stock will help out.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.