View Single Post
Old 09-14-2011, 04:47 PM   #58 (permalink)
wstar
A True Z Fanatic
 
wstar's Avatar
 
Join Date: Mar 2009
Location: Houston, TX
Posts: 4,024
Drives: too slow
Rep Power: 3594
wstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond repute
Default

Quote:
Originally Posted by roy'sz View Post
when you sip a cup of coffee is it boiling? NO, but it is releasing steam and that is the point my friend. Not trying to assasinate your character just simply implying that there is moisture that is burnt off well before waters boiling point. and if im not mistaken it would be from the heat source.
It's a lot more complicated than that even. True steam (water in gas form) is invisible. The "steam" you see rising from your coffee cup is steam that is already re-condensing back into water as it is cooled by the surrounding air. The degree to which water will steam off before the boiling point is also dependent on the humidity and temp of the surrounding environment.

The reason we call 212F the "boiling point" is because at standard atmospheric pressure, this temperature forces water to boil off. Any less and you're guessing at how much may have evaporated at a slow rate depending on local conditions.

I don't know the exact minimum point where you've heated the oil sufficiently to get rid of most of the water, but I think a few minutes at 220 on the gauge is a good guideline with some built in fudge factor. It's definitely past water's boiling point, and it's definitely not too hot for normal engine oil either.

It's too easy (especially in cooler weather) with an add-on oil cooler on the 370Z to make short trips (or even long highway-only trips) and never move the needle past 180. I've even seem some winter highway trips in TX where I had trouble keeping it above 160 without downshifting just to heat the oil up. A blockoff plate is a simple solution to help in those kinds of conditions.

Usually if I know my trip won't get the oil to 220, I just run in a lower gear for a while until I get there.
__________________
7AT Track Car!
Journal thread / Car setup details
wstar is offline   Reply With Quote