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Just like Frosty said, VE will not change with temp, your ECR might change and youll have less oxygent to burn, so for the same volume = less power.
The 172 can loose over 10bhp simply by running the 80C+ engine bay temps than the 30-35 ish temps you would get if you ran air sourced from...
Yes, if the rings are going (unlikely on well looked after, even ragged cars) then you can just stand behind it and get some one to blip the throttle.....small hazy puffs will come out.
Yup different colours mean different things, but it can get confusing when the diagnosis isnt so simple.
White smoke in th morning is just condensation in teh exhaust and water is a by-product of combustion and a catalyst makes it worse for steam.
On highr rpm loads and downshifts or...
The gauges arent the most accurate so dont rely on them too much...if things go pear shaped the oil warning light will come on, then you worry.
What oil are you using and the viscosty ratings really affect temp related pressure.
Thats all because of oil viscosity change with temp. Colder oil is thicker, hotter is thiner.
Your tappets will tap when left for a while or cold, and your pressure will be higher when cold because the oil is thicker.
At the measured operating temp of 80C, the correct running pressure is...