Quote:
Originally Posted by Allch Chcar
Carbon deposits are black. And you're right Ethanol has more solvent than 'Pure' Gasoline. E85 more so. I can't understand the rest ofwhat you said, except to contradict you since Ethanol is almost identical to Methanol. Methanol has a slower burn speed and more oxygen so it has lower energy density than even Ethanol. But put into an engine and the difference is minor compared to the difference between Gasoline and Ethanol. They're both alcohols and even their octane is very similar.
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read more "Books" and google less internet..
to actually Learn how internal combustion engines operate.
and how various types of fuels/blends affect the equation/tune.
Especially before ya spread any more "misinformation"
yes..
ethanol & methanol are both Alcohols
unfortunately Meth is chemically MUCH more active
meth burns Clean (almost invisible flame)
ethanol will create soot (yellow flame)
Ethanol's latent heat of vaporization gives you *Double* the temp drop of most standard gasoline blends..
Methanol's latent heat of vaporization gives you *Triple* the temp drop of most standard gasoline blends..
Methanol has fast Laminar Burn Velocity
(i got a nice chart sitting right in front of me showing various equivalence ratio's, Do you?)
and the BIG key for internal combustion engines..
Methanol has the ability to Retain Quick flameSpeeds/combustionRate thru Less than ideal conditions
(I.E. weak/dilute mixture strengths and/or EGR)
Ethanol does NOT have this level of ability..
FYI: quick flame speeds = more complete Combustion
which generates combustion chamber pressure in the window of time your engine can ACTUALLY capture it Best!!
BTW: gasoline's "octane ratings" don't really apply once alcohol is added into the fuel/equation.. the problem lies in the parameters of the RON/MON tests
for light blends of Meth gasohol..
the Meth is used as a combustion accelerant to light off the SLOW burning gasoline components.. (even @ very low throttle / weak mixtures)
quick flame speeds are now a "Chemical characteristic"
opposed to fiddling with the ignition timing to adjust when/where a slow burning fuel is best utilized by your engine (what ECU tuning is about)
for Light/moderate blends of Ethanol gasohol..
you get lower BTU's combined with standard flame speeds..
(not a good combination for efficiency or MPG)
*Bonus info*
first 200seconds of Cold Engine startup/warmup
Methanolized gasoline emits LESS regulated emissions than neatGasoline or E10
your choice eco modders..
making power and getting MPG's do NOT necessarily have to be on opposing ends of the spectrum..