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Slower when hot?

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Old 09-10-2010, 02:09 PM
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Colder air/lower altitude = denser air.

Denser air = more oxygen.

More oxygen = bigger bang.

Bigger bang = more HP.

-----conversely-----

Hotter air/higher altitude = less dense air.

Less dense air = less oxygen.

Less oxygen = smaller gang.

Smaller bang = less HP.
Old 09-10-2010, 04:04 PM
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Originally Posted by JLUDE,Sep 10 2010, 11:25 AM
Of course.

Cooler air is more dense which results in increased power.

For every 10 degree drop in temp you gain 1-2% in horsepower. So your S2000 feels like it has maybe 10 more hp when it's 70 instead of 90 outside.

The smaller the engine the more noticeable the gains. My 600CC sport bike feels like a rocket when it's 50 degrees out.
Yep.

The more dense the air, the more fuel your ECU adds to compensate.
It has to keep the air/fuel ratio right.
Old 09-11-2010, 03:45 AM
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Originally Posted by HighwayStar,Sep 10 2010, 11:12 AM
It's called heat stroke Do you have the intake Box Cover on?
Yes I do,
And Thanks for the answers.

So as it get's cooler here this fall my chance for a ticket will go up.
Old 09-11-2010, 05:20 AM
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When it's 95 down here and i have the AC with a passenger my car feels like a pig. I can't wait for cooler weather.
Old 09-11-2010, 06:54 AM
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ya, AC will make a pretty big difference too.
Old 09-11-2010, 07:07 AM
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lol heat stroke.. very nice i like
Old 09-11-2010, 09:25 AM
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happened to be last night, got heat soaked and bogged bad in first gear...after it got going though the problem didnt reoccur.
Old 09-11-2010, 10:03 AM
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Solutions: CAI (watch out for hydrolock) or boost (more expensive).
Old 09-11-2010, 10:26 AM
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Originally Posted by RedCelica,Sep 11 2010, 01:25 PM
...after it got going though the problem didnt reoccur.
That's because the stock air intake system is a designed Cold Air intake - once you're moving, cold air gets shunted directly to the intake.
Old 09-11-2010, 11:13 AM
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Originally Posted by Surftile,Sep 11 2010, 03:45 AM
So as it get's cooler here this fall my chance for a ticket will go up.
:exitright:


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