05-01-2012, 04:43 PM
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#21
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Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
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Yes, the fuel injection runs rich during start and cold operation and the cats are still cold so if the car is sitting idling for long periods of time on a consistent basis the extra fuel can ruin the cats.
Just keep control for 5 mins and all will be good and right with the world when you floor it!
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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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05-01-2012, 05:04 PM
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#22
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Registered User
Join Date: May 2011
Location: Miami florida
Posts: 1,591
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All this "never let the motor warm up at idle' is the car manufacturers, all of them, requirement to comply with federally mandated MPG requirements. Obviously, an idling motor gets zero MPG, so to comply with the EPA, they say don't idle. But a motor at idle has essentially no load, and with a thermostat it will warm up quickly. Since the most motor wear occurs while its cold, a motor warming up with no load will definitely last longer than a motor that is cold and being driven.
I'm not saying idle the engine until it reaches operating temperatue, but letting the car idle for a few minutes before driving is much better than driving off within seconds of starting the car. Don't believe the hype of car companies.
__________________
Current car
2000 Boxster 2.7l red/black
Previous cars
1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
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05-01-2012, 05:32 PM
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#23
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Registered User
Join Date: Apr 2012
Location: Nor.Cal
Posts: 131
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Quote:
Originally Posted by ProjectM96
I thought of the remote starter and did my research. But it seems they only make them for automatics.
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You can install a remote start on a manual trans. just by-pass the clutch switch behind the pedal, so you dont have to wait 5 mins. inside the car before the needle starts to move. And also I read avoid "jack rabbit" take off on a cold engine. :dance:
__________________
2K Boxster White/Grey Int./Hardtop/TIP
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05-02-2012, 08:34 AM
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#24
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Registered User
Join Date: Oct 2006
Location: Pacific Northwest
Posts: 107
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An indy mechanic said that high revs when cold probably caused my 2nd gear problem ($3600).
Less than a mile from home is a wonderful uphill hairpin turn with good visibility followed by a nice straight stretch. So now I only enjoy it when already warm.
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2006 Boxster S (987), Lapis blue, blue soft top, detachable hardtop, sand full leather, bi-xeon, 19" Carrera S wheels, 11 spk Bose & windstop, 6-CD changer, heated power seats
Rapid motion through space elates one; so does notoriety; so does the possession of money.
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05-03-2012, 07:55 AM
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#25
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Opposed to Subie Burble
Join Date: Mar 2007
Location: Central CT
Posts: 1,197
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As has been already said, owner's manual says to not let the car idle and warm up. After reading this (the day I got the car), I've followed it. You can tell when the car is cold and running the secondary air injection because the revs drop off very slowly compared to a warm engine, and the shifting is a bit sludgy until the fluid warms up more. But I just follow the manual: drive as soon as the car's started/ASAP, don't exceed 80% throttle when car's not up to temp, don't exceed 4000 rpms when car's not up to temp. I also follow the colloquial rule of thumb of keeping the revs over 3000 as much as possible. I figure as long as I'm following the manual, Porsche can't say I caused problems by not driving the car properly.
I actually rather enjoy having to restrain myself to driving a certain way to let the car get up to temp. It can actually be kind of fun, and makes me pay more attention to what I'm doing as opposed to when I drive my DD econobox. It would suck if my commute were 100% city...I just make sure I make as much use of the stints on the higway as possible.
My commute to work is usually just long enough to get the water up to temp, depending on how long it takes me due to traffic, lights, etc. I know that's not good for the car, but I'm not going to leave extra early to take the scenic route just to let it get up to temp and then some...that's what my long drives to nowhere are for. My commute from work to my campus is about twice as long as my commute from home to either of the two places, so the car has plenty of time and road to get up to temp without being babied the entire way.
So, the short answer to your question: I make a game of sorts out of it, and have confidence that I'm not hurting the car by doing what Porsche says to do.:dance:
__________________
-O/D
1997 Arctic Silver Boxster, 5-spd
IMSR + RMS
Robbins glass window top
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05-03-2012, 08:06 AM
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#26
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Registered User
Join Date: Mar 2006
Location: San Carlos, CA 94070
Posts: 1,450
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Quote:
Originally Posted by ProjectM96
What do you guys do to restrain yourselves?
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I installed an oil temp gauge.
Knowing when the engine is really warmed up helps a lot
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I still wave at Boxsters, but they no longer wave back :-(
2002 Boxster S "Violet" (sold but not forgotten)
2009 Carrera 4S "Kelsey" (current ride)
2015 FIAT 500e "Nikki" my commuter car
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05-03-2012, 08:20 AM
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#27
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Registered User
Join Date: May 2010
Location: UK
Posts: 874
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Quote:
Originally Posted by san rensho
All this "never let the motor warm up at idle' is the car manufacturers, all of them, requirement to comply with federally mandated MPG requirements.
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So why is it in my UK handbook circa 1997?
Sorry, but I think you're wrong. it's best not to let it idle to warm up because it takes longer and exposes the engine to wear and it also means the gearbox and other parts aren't warming up much if at all. So even if you do warm it up by idling, it's not really read to really go from the moment you pull away.
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Manual '00 3.2 S Arctic Silver
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