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do 996s perform better in colder temps?

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Old 01-11-2009, 08:08 PM
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Sam CS 05
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Default do 996s perform better in colder temps?

just noticed my TT is running smoother in winter temps...is this generally true for the 996s?
Old 01-11-2009, 08:10 PM
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justin993
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turbos like the cold air. Generally true for turbos.
Old 01-11-2009, 08:58 PM
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ltc
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In general (warning..incoming 'rule of thumb') for every 10degF reduction in intake charge temperature, you get ~ 1% increase in output
(again, rough rule of thumb).

Cooling the intake charge can be accomplished with:
"Cold Air Kits"
"Intercoolers"
"Water Spray into Carb"....really, albeit distilled water

As for 'running smoother', I'm not really sure. Oil viscosity will be a bit thicker prior to operating temps, so it might sound a bit quieter (re: intermediate shaft).

For a much more professional and detailed opinion, I would suggest sending a PM to 'Kevin'.
Old 01-11-2009, 10:33 PM
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MBailey
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Check this out...

http://www.csgnetwork.com/relhumhpcalc.html
Old 01-12-2009, 02:09 PM
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citychap26
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Mine likes to slid about a little in the cold weather!
Old 01-12-2009, 02:30 PM
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k4site
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Living in Arizona I do not drive my car in the hot weather. A turbo car loves cold weather and if the tires are cold they slip alot.
Old 01-12-2009, 04:06 PM
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Sam CS 05
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Originally Posted by ltc

As for 'running smoother', I'm not really sure. Oil viscosity will be a bit thicker prior to operating temps, so it might sound a bit quieter (re: intermediate shaft).
sorry, I meant more responsive...it seems like my driving impression is real,
thanks, just waiting for more snow on Wed.
Old 01-12-2009, 05:52 PM
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Dock
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Everything else being equal, the colder the air, the more dense it is. Higher density means more O2 per unit volume. More O2 means more gas and more power.
Old 01-12-2009, 06:08 PM
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Sam CS 05
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Originally Posted by Dock
Everything else being equal, the colder the air, the more dense it is. Higher density means more O2 per unit volume. More O2 means more gas and more power.
sounds good to me



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