v8 2 stroke build

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TurtleMann14

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yea, but if you reversed it you could get the gasses out at bdc let the ports close keep adding air while the piston is coming up and then close the valves piston continues up and then bam lol
 

freakboy

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i still dont think it would work you would need a vacume to help suck the exhaust gasses out basicaly a reverse supercharger.. that way it would pull exhaust out and help pull in the 2 smokes case air and fuel..

why not just make it a 4 stroke v8 and turn it into a 2 stroke? get a 350 small block from the junk yard... grind the cam into a foot ball shape so basicaly its a "2 stroke cam" then just keep the 4 stroke oiling system?
 

Kaptain Krunch

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Yamaha made a 4 cylinder two stroke sled engine, 800cc. I believe they used it in a Vmax. Mate two of them and there you go, 1600cc two smoke. I think a true v8 would be Impossible, or very hard at best.
 

freakboy

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I think if you want a v8 you would have to use reed valves? then have each cylinder sealed up in its own bit or have each two that are accrost from eachother sealed from the others... then you would only need to have 4 intake ports but very large ones to compensate for bolth cylinders... then have every other one sealed off from them....
 

TurtleMann14

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or you just move the exhaust cam 180* and run 1:1 on the cam gearing
but still then you wouldn't get good exchange from the exhaust and the new charge
 

Kaptain Krunch

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Making a two stroke with both intake and exhaust valves would be impossible. There is no way you can combine the intake/exhaust stroke with valves. At least no way i can think of.
 

TurtleMann14

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... although if he could cut ports in the side of the cylinder or just use the four stroke head he could have 2 or 4 intake/exhaust valves per head(again taking into account for collision)
 

TurtleMann14

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lol true

idk best bet from where i stand it positive crank case pressure (by blower or something) and a 4 stroke head made to open valves every revolution like in the detroit

make the rest like a two stroke
 

mike75925

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reeds keep the fuel and air from being puked out, the exhaust valve helps to keep the fuel and air in the cylinder. the whole point of valves.
 

dan

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Yea i would think with a two stroke, two rods per journal would mess up fuel air...but i dont know. I've always seen multi-cylinder two strokes with sealed crank cases for each cylinder.

yer i would need to run a super charger to force the fuel air in to the chamber or another way i could is have a duel crank with a gear drive at the back and seal all the chambers of so one piston would have one chamber so there would be 8 chambers.
 
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