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-   -   Cold Weather=More power. Why? (https://www.ft86club.com/forums/showthread.php?t=52535)

JoeCFRS 12-01-2013 02:18 AM

Cold Weather=More power. Why?
 
Just curious why our cars feel more powerful in colder temps? It seems the torque dip is not as noticeable and just overall better acceleration. No complaints here because I love it, but im just curious what the reason is? My last car was the complete opposite. I also have a few thousand miles on my motor now so maybe its just broken in?

Anyway, would love to hear your thoughts. Thx.

dave77 12-01-2013 02:21 AM

Lol, so many newbie car questions on this site. It's all good tho.

Cold weather means the air is denser, so the engine takes in more air, and more air in engine means more power.

radroach 12-01-2013 02:23 AM

because atoms

kALMIGHTY 12-01-2013 02:27 AM

Quote:

Originally Posted by dave77 (Post 1362042)
Lol, so many newbie car questions on this site. It's all good tho.

Cold weather means the air is denser, so the engine takes in more air, and more air in engine means more power.

Yup. Exactly why people invest in COLD air intakes.

headlikeahole 12-01-2013 02:40 AM

Divert A/C into intake...

Infinite POWEERRRRRR

humfrz 12-01-2013 03:02 AM

Quote:

Originally Posted by JoeCFRS (Post 1362031)
Just curious why our cars feel more powerful in colder temps? ........... I also have a few thousand miles on my motor now so maybe its just broken in?

Anyway, would love to hear your thoughts. Thx.

Yep, the engine getting broken it may be part of it.

You're getting more comfortable with it may contribute.

As mentioned, colder air contains more oxygen per unit volume, which enhances combustion.

humfrz

ET86 12-01-2013 03:23 AM

Cooler air is more dense

Speedy000 12-01-2013 03:37 AM

because u dont have your ac on! :thumbsup:
jk jk




i miss winter when i had a turbo. +100000000hp heat soak ftl

Nothing 12-01-2013 03:45 AM

Quote:

Originally Posted by dave77 (Post 1362042)
Lol, so many newbie car questions on this site. It's all good tho.

Cold weather means the air is denser, so the engine takes in more air, and more air in engine means more power.

http://cdn.uproxx.com/wp-content/upl...9bao1_500.jpeg

fazm 12-01-2013 04:00 AM

It's the same reason your car drives better at night. :)

regnak 12-01-2013 04:18 AM

I'll make this fairly simple, if anyone wants a more detailed and scientific based explanation let me know and I'll write something more official up later, but as mentioned before, cold air means more dense air, or, more atoms per unit volume of air. Since air is what's required to ignite the fuel potentially more power as you can combust more fuel. Additionally, cylinder temperatures directly affect when the onset of knocking/pinging occurs. With colder air your cylinder will run slightly cooler allowing the ECU to advance spark timing a little more to gain slightly more power that way too.

Rico415 12-01-2013 02:14 PM

The internal combustion engine is an AIR PUMP.

More air in = more power out.

(as long as the fuel delivery system can keep up with the correct mix)

Cold air = more air
Turbo = more air
:cheers:


As for all the inexperienced want to be gear heads out there there is one book that will answer all your questions about how an internal combustion engine works at a easy to understand teaching level.

Even cover clutches throw-out bearings how and when to shift, wheel alignment.


[ame="http://www.amazon.com/Keep-Volkswagen-Alive-Step-Step/dp/1566913101"]How to Keep Your Volkswagen Alive: A Manual of Step-by-Step Procedures for the Compleat Idiot: John Muir, Tosh Gregg, Peter Aschwanden: 9781566913102: Amazon.com: Books[/ame]

root 12-01-2013 03:12 PM

Quote:

Originally Posted by headlikeahole (Post 1362071)
Divert A/C into intake...

Infinite POWEERRRRRR

Ford actually did this on a couple concepts. Power boost for a short time.

finch1750 12-01-2013 05:38 PM

https://scontent-a-sjc.xx.fbcdn.net/...57097553_n.jpg


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