Alcohol motor build. What's the thinking?
#1381069
02/03/13 07:38 PM
02/03/13 07:38 PM
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Joined: Dec 2003
Posts: 5,314 Carstairs, Alberta, Canada
dave571
OP
master
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OP
master
Joined: Dec 2003
Posts: 5,314
Carstairs, Alberta, Canada
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Hey guys. I'm curious about building an alcohol motor. I want to do up a straight axle beater of sorts, over the next couple of years. I was thinking an alcohol motor would be cool to have. My question is, do you build them for torque, or to spin? I have stacks of B engine parts in my garage, so I can do up a high compression 383 without much effort. I also have a smogger 440 or two laying around. Big cam and spin it like mad? Or are you better to build a 440 to 500" motor, and keep it around 6500 or so. No street duty. This car will be strip only, but doesn't need to run killer fast. a high 10 is all I'm shooting for. Straight axle with an altered wheelbase late 50's mopar. Thanks
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Re: Alcohol motor build. What's the thinking?
[Re: dave571]
#1381073
02/04/13 11:10 AM
02/04/13 11:10 AM
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Joined: Jan 2003
Posts: 9,996 Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
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About the only difference is you can run what ever compression you can put in it for alky, E85 likes a little less (max 13/1?)than Methanol. The more cubes you put in the motor, and the bigger the cam, the faster it will go provided you have the right carb, manifold, and headers. A pocket port on a set of iron heads, 446 cubes,590 or similar cam, 850 carb , single plane intake, 2or 2 1/8 headers will push a 3200 lb car into the 10s. If you can't get the compression up with what you have, Methanol and E85 work just fine on less squeeze. The motor just makers less power like gas. As for timing, start two degrees less than where you would for gas.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Alcohol motor build. What's the thinking?
[Re: MRMOPAR622]
#1381075
02/04/13 05:33 PM
02/04/13 05:33 PM
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Joined: Dec 2003
Posts: 901 oh
julian2007
super stock
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super stock
Joined: Dec 2003
Posts: 901
oh
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We have found the target compression to be 14 to 1 on meth,total seal rings,good top lube,and AED is the only carb to use.Mine acts just like a gas motor heats up just wright and only uses a little over a gal a lap and thats driving to and from the pass,its deadly consistant and takes fuel like a champ. Call best machine they built mine. also do not run it fat you will beat the bottom end out of it. 4.57 @ 150 on alky. printing tickets all day long
Last edited by julian2007; 02/05/13 11:19 AM.
God made cold beer,good friends,hot ladies and race cars don't spit in his face by pi$$ing and moaning about how life sucks!!!
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