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

Reply
 
LinkBack Thread Tools Display Modes
Old 05-05-2010, 06:33 AM   #1
Registered User
 
Join Date: Apr 2010
Location: Chicago, IL
Posts: 14
RPMs/Speed when you switch gears

I have a 1999 Boxster, and this question is more out of curiosity.

At what speed or RPM level do you switch gears?

I seem to never get about 3000 RPMs. I shift gears right about 2800 or 2900. Is this normal?

my1999boxster is offline   Reply With Quote
Old 05-05-2010, 06:45 AM   #2
Registered User
 
Join Date: Apr 2010
Location: trenton nj
Posts: 449
the fun level goes up once ya pass 6 grand (
extanker is offline   Reply With Quote
Old 05-05-2010, 07:14 AM   #3
Registered User
 
Join Date: Mar 2008
Location: near Chicago
Posts: 523
Sorry to thread crap, but this is a pet peeve of mine. RPM stands for "Revolutions Per Minute." RPMs stands for "Revolutions Per Minutes" which is pretty meaningless.

If I'm in fuel conservation mode, I usually shift right at 2100. That puts me at about 1600 after the shift. On the track, I shift at redline or a bit above. Normally, I shift where it feels right. Depends on the situation, but I generally don't look at the tach.
Mike_Yi is offline   Reply With Quote
Old 05-05-2010, 07:17 AM   #4
Registered User
 
Join Date: May 2008
Location: Toronto
Posts: 2,656
If you shift at 2100 you're almost lugging the engine on the next gear...

Last edited by ekam; 05-05-2010 at 07:21 AM.
ekam is offline   Reply With Quote
Old 05-05-2010, 11:46 AM   #5
Registered User
 
Join Date: Aug 2009
Location: London, UK
Posts: 155
If you shift at 2100, why bother with a Porsche at all?!

3.5-4k if I'm feeling lazy, 4-5.5K if I'm in a hurry, 6.5K if I'm really in a hurry or on a track.
Gary H is offline   Reply With Quote
Old 05-05-2010, 11:54 AM   #6
Registered User
 
Perfectlap's Avatar
 
Join Date: Nov 2004
Location: New Jersey
Posts: 8,709
short shifting (below 3K) doesn't seem like it saves so much gas and causes potential problems if the egnine is constantly running at those low rpms.
With these engines the oil can do its job better above 3K.
Doesnt the manual tell you how to shift? Not that I ever read that thing.
__________________
GT3 Recaro Seats - Boxster Red
GT3 Aero / Carrera 18" 5 spoke / Potenza RE-11
Fabspeed Headers & Noise Maker
BORN: March 2000 - FINLAND
IMS#1 REPLACED: April 2010 - NEW JERSEY -- LNE DUAL ROW
Perfectlap is offline   Reply With Quote
Old 05-05-2010, 12:40 PM   #7
Registered User
 
Join Date: Sep 2009
Location: The City
Posts: 1,084
Garage
Quote:
Originally Posted by Mike_Yi
Sorry to thread crap, but this is a pet peeve of mine. RPM stands for "Revolutions Per Minute." RPMs stands for "Revolutions Per Minutes" which is pretty meaningless.

If I'm in fuel conservation mode, I usually shift right at 2100. That puts me at about 1600 after the shift. On the track, I shift at redline or a bit above. Normally, I shift where it feels right. Depends on the situation, but I generally don't look at the tach.

interesting... so how do you denote 1 RPM? seeing as you would not have agreement if the R stands for Revolutions. (note ending in s)

is it 1 R-sPM? (if in fact a small s does denote the plural of the word imediately before as you insinuate in your post)

then it should be RsPM? but if you say that it is not the case then the OP saying RPMs would be correct since it would be the same as (RPM)s making it plural of more than one Rotation Per Minute...


(im just ****************ing around btw thought its a funny concept. no harm meant)
Lobo1186 is offline   Reply With Quote
Old 05-05-2010, 01:34 PM   #8
Registered User
 
Join Date: Apr 2009
Location: Bothell, WA
Posts: 279
I'm pretty sure the manual says to keep the engine under 4k RPM during the first 5 minutes of driving. And it also states do not lug the engine, but I don't think it defines lugging precisely.

I try to keep in the 2000-3500 for the first 10 minutes, then I try to keep it over 2500 RPM.
__________________

'01 Boxster S, 51k miles
'05 Mazda 6 Grand Touring Wagon
yimmy149 is offline   Reply With Quote
Old 05-05-2010, 02:16 PM   #9
Registered User
 
boxster6354's Avatar
 
Join Date: May 2007
Location: Kingwood, TX
Posts: 445
Garage
Just trying to keep it up, bored at the moment

Revolutions per minute (abbreviated rpm, RPM, r/min, or r·min−1) is a unit of frequency of rotation: the number of full rotations completed in one minute around a fixed axis. It is used as a measure of rotational speed of a mechanical component.
Standards organizations generally recommend the symbol r/min, which is more consistent with the general use of unit symbols. This is not enforced as an international standard. In French for example, tr/mn (tours par minute) is commonly used, and the German unit reads U/min (Umdrehungen pro Minute) or 1/min (= 1 min-1).
The corresponding unit in the International System of Units (SI) is hertz (symbol Hz) or s-1 (1/second). Revolutions per minute is converted to hertz through division by 60. Conversion from hertz to rpm is by multiplication by 60.
1 rpm = 1/min = 1/(60s) = 1/60 Hertz ≈ 0.01667 Hz
Another related unit is the SI unit for angular velocity, radian per second (rad·s−1):
1 rpm = 2π****rad·min−1 = 2π/60 rad·s−1 ≈ 0.10471976 rad·s−1



Quote:
Originally Posted by Lobo1186
interesting... so how do you denote 1 RPM? seeing as you would not have agreement if the R stands for Revolutions. (note ending in s)

is it 1 R-sPM? (if in fact a small s does denote the plural of the word imediately before as you insinuate in your post)

then it should be RsPM? but if you say that it is not the case then the OP saying RPMs would be correct since it would be the same as (RPM)s making it plural of more than one Rotation Per Minute...


(im just ****************ing around btw thought its a funny concept. no harm meant)

boxster6354 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

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 10:22 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page