Jump to content

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)

Rwhp Numbers For Stock 997s

summoboy
 Share

Recommended Posts

  • 6 months later...
MichaelL Member

MichaelL

Posted
Posted

On the various forums, I have seen stock rear wheel horsepower figures varying from 290 to 310 for the S model. There is, apparently, a high variation in results and repeatability from various dynamometers, which is also dependent on how the machine is operated. The car will need several pulls to adapt the ECU to maximum performance. Loss in the drivetrain is generally considered to be 16 to 17 percent for rear wheel drive, 20 percent for all wheel drive. It looks like if it wasn't done on the same dyno, same day, same operator and correctly, you can't compare numbers with any assurance of being right.

Link to comment
Share on other sites
summoboy Member

summoboy

Posted
  • Author
Posted
On the various forums, I have seen stock rear wheel horsepower figures varying from 290 to 310 for the S model. There is, apparently, a high variation in results and repeatability from various dynamometers, which is also dependent on how the machine is operated. The car will need several pulls to adapt the ECU to maximum performance. Loss in the drivetrain is generally considered to be 16 to 17 percent for rear wheel drive, 20 percent for all wheel drive. It looks like if it wasn't done on the same dyno, same day, same operator and correctly, you can't compare numbers with any assurance of being right.

Thank you!

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • 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.