<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HiProfile &raquo;</TD></TR><TR><TD CLASS="quote">What funny is that, when you convert all temps to Kelvin (absolute, read about it), 72F is not much different from 32F:

72F = 295K (room temp)
32F = 273K (water freezes)
200F = 366K (engine coolant temp)
1500F = 1088K (high turbo EGT's)

In other words, at 72F, you have to heat your coolant 24% to get to opperating temp. At 32F, its 34% (only 10% more!). The difference between the combusted air and room/freezing temps is only 8%.

32F air only needs 8% more heat than 72F air to get to EGT temps.


Now if we use Kelvin to explain thermal expansion of metal parts (of which is linear with kelvin), its the same ****. 32F pistons are only 8% smaller than 72F pistons, etc. Makes you want to stop being a *****, don't it? </TD></TR></TABLE>
lmao

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sleepencivic &raquo;</TD></TR><TR><TD CLASS="quote">for all your winter drivers do you have a winter tune for the winter and summer tune for the summer? here in va it gets as hot as 100F in the sumer and low 20's in the winter...i know most software has provision for air inlet temps but not that big of a range?</TD></TR></TABLE>
I always wonder the same thing. Does the ECU compensate at all for the change in weather, or does it just run leaner in cold weather etc.?

I drive my built turbo setup in the freezing weather, but I let it warm up for a long time.