Go Back   986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

 
 
LinkBack Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 07-08-2012, 09:25 PM   #3
Registered User
 
boxster6354's Avatar
 
Join Date: May 2007
Location: Kingwood, TX
Posts: 445
Garage
This was posted a bit back over on Renntech:

--------------------------------------------
You can calculate the approx ground speed at fuel cut off for all gears as follows:

5 sp. forward gears (std 17" tyres)

("current engine rpm"/1000)*5*("transmission gear#")= "x" mpg

i.e. for 3rd gear at redline (7200/1000)*5*(3)=108 mpg

I've noticed that interesting relationship before while driving; the gears are almost exactly evenly separated so you can approx groundspeed knowing only rpm and gear. This is for the 5sp only on the Boxster std.
---------------------------------------------

I agree for street driving why would you need a S ;-)

*** Now for all the owners of an S to chime in ****
boxster6354 is offline   Reply With Quote
 



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 08:03 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page