11-22-2017, 04:06 PM
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#1
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Registered User
Join Date: Feb 2008
Location: San Francisco
Posts: 178
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Am I worrying needlessly about engine temp?
A few points first. My perfect 2000 S with 33k blew up 10 years ago. Am still scarred. Baffling to my family, I bought a 2000 2.7 this year. Love this car. But worry as I sit in the horrid Bay Area traffic and watch the gauge rise into the 0 of the 180. Took it to Gavin’s Porsche in Oakland (most honest mechanic I’ve ever worked with). Checked out the cooling system and fans, all good. Just wondering tho, while I don’t track this car, could I beef up the cooling system by adding a lower temp thermostat and maybe a 3.2 S oil cooler?
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11-22-2017, 04:31 PM
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#2
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Registered User
Join Date: Jan 2014
Location: New Jersey
Posts: 1,631
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Isn't the 0 of the 180 the normal running temperature? That's where my 2003 S is all the time. If you want more cooling you could also add the third radiator in the center up front, but you would need to have a center opening in your bumper cover.
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11-22-2017, 04:47 PM
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#3
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Registered User
Join Date: May 2016
Location: Northern Indiana
Posts: 410
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When stuck in traffic, ever try running your heater on high? Regardless of how heat is disapated, via radiator or heater core, the result is the same....heat transfer from one environment (engine) to another (atmosphere). Granted, this works best with top down...
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11-22-2017, 05:18 PM
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#4
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,538
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Quote:
Originally Posted by sfkjeld
A few points first. My perfect 2000 S with 33k blew up 10 years ago. Am still scarred. Baffling to my family, I bought a 2000 2.7 this year. Love this car. But worry as I sit in the horrid Bay Area traffic and watch the gauge rise into the 0 of the 180. Took it to Gavin’s Porsche in Oakland (most honest mechanic I’ve ever worked with). Checked out the cooling system and fans, all good. Just wondering tho, while I don’t track this car, could I beef up the cooling system by adding a lower temp thermostat and maybe a 3.2 S oil cooler?
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Yes................
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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11-22-2017, 05:25 PM
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#5
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1999 base
Join Date: Dec 2011
Location: Coral Springs FL
Posts: 1,617
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Let me share my personal experience.
First Porsche- 01 boxster S. 3.2L engine, with center radiator from factory. Installed low temp stat.
Second Porsche- 99 Boxster base. 2.5L engine. No 3rd rad, no low temp stat.
Current Porsche- 02 Carrera. 3.6L engine. No 3rd rad, no low temp stat.
Go figure out why the 3.2 comes with extra cooling and the larger 3.6 don’t.
Anyway, in all three cars, the needle was always between the 8 and the zero on normal driving, or right of the zero on traffic.
You have nothing to worry about.
BTW, a low temp stat is good to have, although it is not going to affect the operating temperature of your engine. It’s just going to start the cooling cycle sooner, preventing hot spot at the no1 cylinder, and will get the engine to operating temperature faster.
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11-22-2017, 09:10 PM
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#6
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Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
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__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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11-23-2017, 04:48 AM
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#7
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Registered User
Join Date: Dec 2016
Location: Clifton, NJ
Posts: 1,135
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Ive done all the cooling mods, including oil cooler, low temp thermostat, and third radiator and the car still gets to 104c in heavy traffic. Runs about 97c on the highway regardless of temp. On the track, no issues, stays below 100c.
In my experience, the cars just run hot.
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11-23-2017, 05:33 AM
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#8
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Registered User
Join Date: Aug 2009
Posts: 1,466
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180 is the correct operating temp for these cars. I have every engine cooling trick and more on my Boxster and it runs at 180. On those days on track where it is 90+ degrees and 120+ track temp it hangs 180 - 195.
160 degree stat.
Third Radiator
Extra ducting to wheel well from front radiators (racing hack + down force)
997 Oil cooler
manual switches for cooling fans.
Oil cooler with 2 6" fans.
It runs 180
__________________
2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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11-23-2017, 06:54 AM
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#9
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Registered User
Join Date: Feb 2008
Location: San Francisco
Posts: 178
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Thanks for response
Lot’s of good ideas here. I like the manual fan switches idea. But it seems the S oil cooler is the best bang for buck for simply keeping the engine temp down. Is it a simple bolt on proposition? Easily accessible from the top? Had an estimate of 2.5hrs labor to do install.
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11-23-2017, 07:05 AM
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#10
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,538
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Quote:
Originally Posted by sfkjeld
Lot’s of good ideas here. I like the manual fan switches idea. But it seems the S oil cooler is the best bang for buck for simply keeping the engine temp down. Is it a simple bolt on proposition? Easily accessible from the top? Had an estimate of 2.5hrs labor to do install.
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If someone is going to take 2.5 Hrs. to do this, they are factoring in a long nap into the process.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
Last edited by JFP in PA; 11-23-2017 at 05:43 PM.
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11-23-2017, 07:07 AM
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#11
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Registered User
Join Date: Jun 2017
Location: indiana
Posts: 33
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Your car is at normal operating temperature. Just drive it and enjoy it.
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11-23-2017, 08:08 AM
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#12
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Registered User
Join Date: Sep 2010
Location: Foster City CA
Posts: 1,099
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Bay area...low temp thermostat...needle is on the dash above "18" for 90%+ of the year or when the car is moving 20 mph or higher. Needle rises to the dash above the 0 when stuck in the commute moving less than 15 mph on days when the temp is 80 degrees or higher.
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11-23-2017, 02:14 PM
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#13
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Registered User
Join Date: Aug 2009
Posts: 1,466
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Quote:
Originally Posted by JFP in PA
If someone is going to take 2.5 Hrs. to do this, the are factoring in a long nap into the process.
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I like that biggest smile of the day.
__________________
2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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11-23-2017, 05:24 PM
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#14
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Registered User
Join Date: Sep 2012
Location: S. New Jersey
Posts: 1,239
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Normal for stop and go
Get a phone app with bluetooth ODBII sender
You can get better temp data how it relates to gauge. You also see temps the fans come on the drive speeds where temps start to go down
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11-23-2017, 09:07 PM
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#15
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Registered User
Join Date: Jul 2012
Location: Whittier
Posts: 4
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If your car starts to run hot, turn on the A/C...
Sounds counter productive, but it turns on the radiator cooling fan. I do that all the time when I drive in stop and go traffic. It works.
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11-23-2017, 11:30 PM
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#16
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Registered User
Join Date: May 2015
Location: Sydney, Australia
Posts: 335
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"Get a phone app with bluetooth ODBII sender" ... this! Worrying about anything from the inaccurate gauges is a waste of time. At least get a cheapo ELM OBD2 device from amazon ($10) and the Torque app for your phone. You'll then have all the error codes and fuel trims and other fun stuff to worry about as well!
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11-24-2017, 12:06 AM
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#17
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Registered User
Join Date: Jun 2017
Location: Visalia, Ca
Posts: 136
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Am I worrying needlessly about engine temp?
Considering the boiling point of Antifreeze is approximately 223 degrees F and the normal operating temperature of combustion engines is roughly the same, I'd say 180 to 190 degrees F is worrying over nothing. Even pure water requires 212 degrees F to boil.
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11-24-2017, 03:43 AM
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#18
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Registered User
Join Date: Sep 2012
Location: S. New Jersey
Posts: 1,239
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Quote:
Originally Posted by RobertKing
Considering the boiling point of Antifreeze is approximately 223 degrees F and the normal operating temperature of combustion engines is roughly the same, I'd say 180 to 190 degrees F is worrying over nothing. Even pure water requires 212 degrees F to boil.
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If 180 actually was 180
When my needle climbs into the 0 then rhat typically means 200+ low speed fans come on around 212-215
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11-24-2017, 04:40 AM
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#19
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1999 base
Join Date: Dec 2011
Location: Coral Springs FL
Posts: 1,617
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Quote:
Originally Posted by tone40
Sounds counter productive, but it turns on the radiator cooling fan. I do that all the time when I drive in stop and go traffic. It works.
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not only it turns the fans on, it turns it on the high speed.
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11-24-2017, 03:00 PM
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#20
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Registered User
Join Date: Apr 2016
Location: SE Michigan
Posts: 496
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Quote:
Originally Posted by Meir
not only it turns the fans on, it turns it on the high speed.
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AC turns the fan on at low speed. I added a 3-position toggle switch to manually control the fan at low or high speed without AC. With the low temp thermosta and proactive cooling fan at my finger tip, I can keep the temp at indicated 180F or slightly below for most of driving cond. When I let it past '0' then flip the fan at high speed, it comes down to 180F in 3-4 minutes.
__________________
1997 Boxster arctic silver/ red, XNE riveted mahogany/ leather steering wheel & 917-style wood shift knob, Ben’s short shifter, PSE, 996 TB, UDP, stereo/ center console delete, hardtop and speedster humps, daily driver rain or shine or snow!
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