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Colder weather = POWA!

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Old 10-03-2009, 08:42 PM
  #26  
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I made a thread about this a week ago and no one chipped in! Air is more dense so you have more oxygen molecules which gas needs to burn.

Stoichiometry:

at 1 atmosphere (sea level) and 1 liter with a temperature of 90 degrees celcius you have .034moles of oxygen

at those same parameters but with a temperature of 40 degrees celcius you get .039moles of oxygen.

Really not much of a difference...but if you live high altitudes your oxygen is even less dense.
how much will that small difference of O2 make in the combustion? By the way anyone know how many degrees does a CAI bring down the temperature? Oil companies added MBTE to gas to add oxygen to it....but it backfired on them. Why not just turbo charge every car?? by the way turbo=less CO2 because you car is burning the gas better, so turbo guys are somewhat being green.

Last edited by boizart1; 10-03-2009 at 08:47 PM.
Old 10-03-2009, 08:45 PM
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This thread is funny, you guys won't even gain 1 whp from a 20F change in atmospheric temperature.

Originally Posted by ivory8
spinning the tires seeems so much easier, any ideas what the power difference can be with a 40-50 degree temperature decrease? my butt dyno tells me 10-15%

but, sometimes it lies to me :P haha
10-15% You're kidding me! You won't evven see a 1whp gain in a 40-50F temperature decrease!

And as for you easily chirping your tires, it's because the colder temperature makes the road surface colder and takes your tires a longer time for it to warm up therefore making your tires grip less.
Old 10-03-2009, 08:48 PM
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^ renesis you're forgetting we're using our butt dynos
Old 10-03-2009, 08:49 PM
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Originally Posted by newguy
Low temps make a big differance on turbo cars, in my Talon, I can lean out airflow the MAF sees by about 5% in winter without seeing any knock. Dense air is good.
Yes, it makes a whole lot of a difference on a car that's FI'd. It won't do **** to the 8.
Old 10-03-2009, 08:49 PM
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Originally Posted by sanyok
^ renesis you're forgetting we're using our butt dynos
Butt dynos and placebo effects are great, aren't they?
Old 10-03-2009, 08:55 PM
  #31  
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Originally Posted by Renesis SE3P
This thread is funny, you guys won't even gain 1 whp from a 20F change in atmospheric temperature.



10-15% You're kidding me! You won't evven see a 1whp gain in a 40-50F temperature decrease!

And as for you easily chirping your tires, it's because the colder temperature makes the road surface colder and takes your tires a longer time for it to warm up therefore making your tires grip less.
Like RG said; what looks good on paper dont always work.
I know when its under 100 my car drives/feeld dif than when its 117
Old 10-03-2009, 08:58 PM
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Originally Posted by Renesis SE3P
Butt dynos and placebo effects are great, aren't they?
yup the best part is sometimes it's free just like in this case
Old 10-03-2009, 11:08 PM
  #33  
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TX

Originally Posted by Renesis SE3P
This thread is funny, you guys won't even gain 1 whp from a 20F change in atmospheric temperature.



10-15% You're kidding me! You won't evven see a 1whp gain in a 40-50F temperature decrease!

And as for you easily chirping your tires, it's because the colder temperature makes the road surface colder and takes your tires a longer time for it to warm up therefore making your tires grip less.

I tried to shed some light on the subject bro but save your keystrokes, it's pointless.
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