November 30, 200619 yr I am looking into a rebuild of an ea82. Subaru specifically mentions the use of alchol in their 1987 engine. I was wondering if an anodized surface would protect the aluminum from the ill effects of the alchol. I understand that an anodized surface is near the hardness of a dimond. Looks like this would be a positive effect for an engine. I'm thinking anything aluminum be protected pistons, block, etc. Call me crazy but it's just a thought. Look forward to your comments. Here is where I got the info http://asuwlink.uwyo.edu/~metal/anodizing.html
November 30, 200619 yr Call me crazy but it's just a thought. You're crazy. But then again, so is everyone else here... Seems a tad expensive, but... I say give it a shot.
November 30, 200619 yr sounds crazy enough to work i say give it a shot and don't worry were all crazy here
November 30, 200619 yr My concern would be that anodizing aluminum probably changes its frictional characteristics... Still worth a try though.
November 30, 200619 yr Your crazy. These engines happily go to 200-300,000 miles in the stock methods. Anodizing cant withstand the 15,000 psi pressure of combustion and equally high temperitures. ALso anodized coatings are a final step. They cant be machined, and have a real thickness to them. If there was a plus to it as far as pistons someone would have done it. Anodizing is done to protect parts from the elements at atmospheric pressure or less. Its not desighned nor meant to protect under pressure. Whats worse is when it does fail, it flakes off. ALso anodized surfaces must expand and contract at the same rate, otherwise the srface will fail. ANodized parts tend to change the thermal cahrecteristics of what ever it is bonded too. nipper
November 30, 200619 yr Parts inside the engine are not going to need it. The oil in the crank case and the carbon from igntion are more than sufficient to protect the aluminium surfaces. Besides that, there isn't any alumnium wear points on an EA82. Cylinder walls and rings are steel or sintered iron, main and rod bearings are steel as is the crank. Piston top, and combustion chamber rapidy form a carbon layer.... which surface are you trying to protect?? GD
December 1, 200619 yr Might be interesting to see an anodized block and heads, though. You can mask off areas you don't want anodized, like gasket mating surfaces and ports. I'm just having visions of a bright blue block with yellow heads, maybe a gold intake- Appearancewise, it would be pretty sweet.
December 1, 200619 yr alcohol is for racing.........runs too cool for street.....no lubricity......40% more consumption........bad for non compatible rubber parts.......cold weather issues.......its a water sponge........limited access supplies......leaves a white residue caused by lack of maintaince....good for more torque tho...and its way safer fuel than gasoline....nice octane level......just some bits of info from competing in pro racing karts..........i know it prolly doesn't mean anything to most and some disagree....but just my personal expirence......
December 1, 200619 yr alcohol is for racing.........runs too cool for street.....no lubricity......40% more consumption........bad for non compatible rubber parts.......cold weather issues.......its a water sponge........limited access supplies......leaves a white residue caused by lack of maintaince....good for more torque tho...and its way safer fuel than gasoline....nice octane level......just some bits of info from competing in pro racing karts..........i know it prolly doesn't mean anything to most and some disagree....but just my personal expirence......uh i'm lost, when did alcohol come into this or did i just read right over it?EDIT: sorry i'm dumb first paragraph
December 1, 200619 yr How about chrome plating? Real American chrome, not cheap foreign stuff. http://www.federal-mogul.com/en/AftermarketSolutions/SouthAmerica/EngineSolutions/Products/PistonRings/SealedPowerPistonRings/Moly-Chrome/ The been doing chrome piston rings ofr years. thats why it takes a about 8,000 miles for the newer soobies (gen I and II) to break in. nipper
December 1, 200619 yr Author Chrome plated should be just like anodized both are just a thin coating. I am going to look aaround a little more just in case the comment about flaking is right. I just want to be able to burn e085. I also have to increase compression so it will burn about the same as gas engine. The been doing chrome piston rings ofr years. thats why it takes a about 8,000 miles for the newer soobies (gen I and II) to break in. nipper
December 1, 200619 yr Chrome plated should be just like anodized both are just a thin coating. I am going to look aaround a little more just in case the comment about flaking is right. I just want to be able to burn e085. I also have to increase compression so it will burn about the same as gas engine. The been doing chrome piston rings ofr years. thats why it takes a about 8,000 miles for the newer soobies (gen I and II) to break in. nipper ah so now we get to the nut of things. Its not worth it. First off you need to have the fuel system taken out, cleaned, and reinstalled (E85 is a powerful solvent). Secondly you need to re calibrate the computer (not too sure on the electronic feedback carbs). Next anything rubber that even has a slight chance of seeing fuel vapors need to replace. Finally, it actually costs MORE to run e85, as you need 1/3 more of it to get the same range as gasoline. Even the e85 sites say its doable but not feasable. Oddly its real easy if you have a pre 1973 car to convert. nipper
December 1, 200619 yr No special changes need to be made to use E85 as far as the engine is concerned (other than compression). The problems will be with the fuel system. GD
December 1, 200619 yr Propane would be a better alternative, and might actually save you money instead of costing more. E85 hasn't come into it's own yet. There may come a time when it's cheaper, but so far it's not. GD
December 1, 200619 yr E85 will never come into its own. The only reason they are making the E85 cars is they get a tax brake. Now propane or LG is much simpler to pull off. nipper
December 1, 200619 yr uhhhhh what they said.........i was assuming you wanted to use 100% alc. not e85........the new e85 fuel vehicles can use either fuel....the 'puter senses the change of fuel and does what is required for the engine to survive.......everyone is dabbling in alt fuels....with limited success...someone will hit on the right thing and all will be well.....til then the public will be the guinna pig........ :eek: and pay.............
December 1, 200619 yr How about chrome plating? Real American chrome, not cheap foreign stuff. I Like that Idea!
December 2, 200619 yr I Like that Idea! Well, I suppose other countries are cappable of making real chrome, the kind you can bang with a jagged hammer and not leave a scratch, but most of the stuff from Taiwan, China and even Japan is garbage.
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