methanol mixtures
Jun 14, 2007, 08:09 AM
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methanol mixtures
ok, so after doing alot of reading and talking to a few people, i have come down to there are a few mixtures that guys are running, its between straight alky or straight methanol of course, but also to mix meth with distilled water, or the windshield fluid and heet (98-99% methanold).
what are the positives and negatives of these mixtures?
also compare prices of different mixtures.
what are the positives and negatives of these mixtures?
also compare prices of different mixtures.
Last edited by bvdawg13; Jun 14, 2007 at 08:31 AM.
Jun 14, 2007, 08:16 AM
#2
ok, so after doing alot of reading and talking to a few people, i have come down to there are a few mixtures that guys are running, its between straight alky or straight methanol of course, but also to mix meth with distilled water, or the windshield fluid and heet (98-99% methanold)
what are the positives and negatives of these mixtures?
what are the positives and negatives of these mixtures?
Jun 14, 2007, 09:38 AM
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200 proof methanol is only corrosive to reactive metals like Zn, Al...
http://en.wikipedia.org/wiki/Methanol
One of the drawbacks of methanol as a fuel is its corrosivity to some metals, including aluminium. Methanol, although a weak acid, attacks the oxide coating that normally protects the aluminium from corrosion:
6 CH3OH + Al2O3 → 2 Al(OCH3)3 + 3 H2O
The resulting methoxide salts are soluble in methanol, resulting in clean aluminum surface, which is readily oxidised by some dissolved oxygen. Also the methanol can act as an oxidizer:
6 CH3OH + 2 Al → 2 Al(OCH3)3 + 3 H2
This reciprocal process effectively fuels corrosion until either the metal is eaten away or the concentration of CH3OH is negligible.
wetted parts in a WI system include nylon, santoprene, EPDM, nickel coated brass, Buna-N, Nitrile, austenitic stainless, polyethylene, polypropylene, delrin - all fairly stable in the presence of methanol
http://en.wikipedia.org/wiki/Methanol
One of the drawbacks of methanol as a fuel is its corrosivity to some metals, including aluminium. Methanol, although a weak acid, attacks the oxide coating that normally protects the aluminium from corrosion:
6 CH3OH + Al2O3 → 2 Al(OCH3)3 + 3 H2O
The resulting methoxide salts are soluble in methanol, resulting in clean aluminum surface, which is readily oxidised by some dissolved oxygen. Also the methanol can act as an oxidizer:
6 CH3OH + 2 Al → 2 Al(OCH3)3 + 3 H2
This reciprocal process effectively fuels corrosion until either the metal is eaten away or the concentration of CH3OH is negligible.
wetted parts in a WI system include nylon, santoprene, EPDM, nickel coated brass, Buna-N, Nitrile, austenitic stainless, polyethylene, polypropylene, delrin - all fairly stable in the presence of methanol
Jun 14, 2007, 09:52 AM
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ok, so after doing alot of reading and talking to a few people, i have come down to there are a few mixtures that guys are running, its between straight alky or straight methanol of course, but also to mix meth with distilled water, or the windshield fluid and heet (98-99% methanold).
what are the positives and negatives of these mixtures?
also compare prices of different mixtures.
what are the positives and negatives of these mixtures?
also compare prices of different mixtures.
on injection mixtures:
http://www.srtforums.com/forums/showthread.php?t=308693
good stuff:
https://www.evolutionm.net/forums/sh...29&postcount=7
Methanol cost about $25 to 30 for a sealed metal drum of +99% purity, tech grade
RO/Distilled water, ~$0.60 from the grocery stall
Jun 14, 2007, 12:12 PM
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Additional octane, but to really take advantage of a high methanol injection mix you need to tune for it......which means that you need to get your failsafes mechanisms figured out, and make sure they work properly.
