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

Reply
 
LinkBack Thread Tools Display Modes
Old 05-16-2008, 11:15 AM   #1
Registered User
 
Join Date: Jul 2006
Location: Costa Rica
Posts: 147
Temp rise when high engine load normal?

Today temepartue was 80 F, I had air conditioning at max.
The car is a Cayman S manual

Drove a 25 mile section of twisties (deserted , no cars) was pushing it, mostly second gear sections , then second gear uphilll twisties, sometimes third, but always changing gears at 6500 or 700 rpms.

During the middle of the uphill the needle of the temp rised to the second marker, I continued pushing it and having fun, and temp continued there, rised a tiney bit past the marker, then the downhill came and temp went back to normal.

I think this car is made for this type of driving, and Im surprised of the temp rise, is this normal?

Any harm to continue driving fast with the temp at the second mark in the gauge?

Also I have done this route many many times with my Triptronic 2.7 Boxster and Temperature never moved from center.

Now page 86 of the Cayman S owner manual says.


Pointer in the middle-normal operating temperature.
The pointer might move up to the red area when engine is heavily loaded and outside temperature is high, but should return to "normal" when engine load is reduced.


According to the manual seems ok a rise in temp if the engine is heavily loaded, as long as it goes down.
Also talked to a couple of reputable mechanics and both told me its ok to keep driving hard as long as the temp needle doesnt reach the red area.

motoadve is offline   Reply With Quote
Old 05-16-2008, 04:18 PM   #2
Porsche Purist
 
Paul's Avatar
 
Join Date: Aug 2003
Location: Wisconsin
Posts: 2,063
Garage
The owners manual tells the story.

Any chance your radiators are dirty?

I ran up 89A to Flagstaff in 100+ degree weather last summer and my temp gauge went up about 3 needles width.
__________________
1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster bought new. Installed used motor at 89k.
1987 924S . 2002 996TT. PST2
Owned and repaired Porsches since 1974. Have driven them all the way the Dr intended...
Paul is offline   Reply With Quote
Old 05-16-2008, 05:51 PM   #3
Registered User
 
Join Date: Jul 2006
Location: Costa Rica
Posts: 147
Actually the bottom part of the right radiator was pretty dirty, and many of the fins of both radiators are bent, more than 50% of both radiators.

I susposse there is a fix for this right?
motoadve is offline   Reply With Quote
Old 05-16-2008, 06:08 PM   #4
Registered User
 
Join Date: Jul 2006
Location: Costa Rica
Posts: 147
Im not too worried about the track, because you get some speed , use 3rd and 4th gear, even 5th gear.

This mt road is uphill second gear tight turn after turn, high G load turns and not enough straihgts to even put 3rd gear., as soon as the section opened up and I put 3rd (after 20 minutes of tight climb, the car went back to normal, still is not too comforting to drive with the gauge at the second position, it spoils the fun for me, and is distracting looking at the gauge all the time.
motoadve is offline   Reply With Quote
Old 05-17-2008, 07:19 AM   #5
Porsche Purist
 
Paul's Avatar
 
Join Date: Aug 2003
Location: Wisconsin
Posts: 2,063
Garage
Could you post a picture of your radiator fins?
__________________
1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster bought new. Installed used motor at 89k.
1987 924S . 2002 996TT. PST2
Owned and repaired Porsches since 1974. Have driven them all the way the Dr intended...
Paul is offline   Reply With Quote
Old 05-17-2008, 12:14 PM   #6
Registered User
 
Join Date: Jul 2006
Location: Costa Rica
Posts: 147
Here are some pics of both radiators
motoadve is offline   Reply With Quote
Old 05-17-2008, 01:01 PM   #7
Registered User
 
Brucelee's Avatar
 
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
No problem. In fact. push it harder! Keep it at 7K minimum.

Good for you, good for your car.

__________________
Rich Belloff

Brucelee is offline   Reply With Quote
Old 05-17-2008, 01:02 PM   #8
Registered User
 
Brucelee's Avatar
 
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
PS- if you coolant is at say 225, given this type of driving, you oil is likely over 300.

Keep that oil clean!
__________________
Rich Belloff

Brucelee is offline   Reply With Quote
Old 05-18-2008, 09:05 AM   #9
Registered User
 
Join Date: Jul 2006
Location: Costa Rica
Posts: 147
Went for a drive yesterday and today in the mountains, temp was in the 70's up to 80 .

Temperature never moved from center, so I think everything is ok

motoadve 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 11:29 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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