modifications for alcohol on a 2-stroke drag
#1
06-26-2008, 10:33 AM
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modifications for alcohol on a 2-stroke drag
Hello community!
My name is David and today Iīve found your forums and I hope, that some members can give me some help.
Well, I know that isnīt ATV racing but there are the same good 2-stroke engines in it [img]i/expressions/face-icon-small-wink.gif[/img]
I think heare in europe we are still in its infancy with modifications about alcohol.
I drive in the german 70ccm 2-stroke class and I want to drive on alcohol.
About the engine:
Iīts an automatic (vario) scooter engine with a completely ported 70ccm high-end setup.
The output power on backwheel is 22Hp with 98ROZ gasoline.
Carburator: 28mm flat Keihin PWK
Bore:47,6mm
Stroke:39,2mm
Compression: about 1:15,5
Ignition: Digital-variable
Exhauspipes:many different custom build pipes
-Cylinderporting on nice transfer and exhaustimings and the CVT is optimiced with special angels.
About the projekt:
Class: (150m) or (1/4-1/8 mile-Dragrace)
The class is open for all fuels and I want to build up an ethanol or methanol engine because all drivers only drive on normal gasoline and I hope to can perform a lot of more HP out of alcohol.
I donīt have expirience with alcohol on engines.
But itīs not a problem to make special heads, exhaustpipes or modifications!
Also a friend has a dynamometer.
The realisation is possible but I donīt know what Iīve to do!
-How much % I win with ethanol or methanol (I think methanol has a better energy-output, isnīt it?)
-Whatīs up with an alloy of nitromethane?
-How many % oil is the best mixture?
-What I have to do with the head (design,squich and compression) and other parts (carburator,ignition..)?
-Whatīs up with the spark-go hotter or colder as with normal gasoline?
Thank you very mouch
regards David [img]i/expressions/face-icon-small-wink.gif[/img]
My name is David and today Iīve found your forums and I hope, that some members can give me some help.
Well, I know that isnīt ATV racing but there are the same good 2-stroke engines in it [img]i/expressions/face-icon-small-wink.gif[/img]
I think heare in europe we are still in its infancy with modifications about alcohol.
I drive in the german 70ccm 2-stroke class and I want to drive on alcohol.
About the engine:
Iīts an automatic (vario) scooter engine with a completely ported 70ccm high-end setup.
The output power on backwheel is 22Hp with 98ROZ gasoline.
Carburator: 28mm flat Keihin PWK
Bore:47,6mm
Stroke:39,2mm
Compression: about 1:15,5
Ignition: Digital-variable
Exhauspipes:many different custom build pipes
-Cylinderporting on nice transfer and exhaustimings and the CVT is optimiced with special angels.
About the projekt:
Class: (150m) or (1/4-1/8 mile-Dragrace)
The class is open for all fuels and I want to build up an ethanol or methanol engine because all drivers only drive on normal gasoline and I hope to can perform a lot of more HP out of alcohol.
I donīt have expirience with alcohol on engines.
But itīs not a problem to make special heads, exhaustpipes or modifications!
Also a friend has a dynamometer.
The realisation is possible but I donīt know what Iīve to do!
-How much % I win with ethanol or methanol (I think methanol has a better energy-output, isnīt it?)
-Whatīs up with an alloy of nitromethane?
-How many % oil is the best mixture?
-What I have to do with the head (design,squich and compression) and other parts (carburator,ignition..)?
-Whatīs up with the spark-go hotter or colder as with normal gasoline?
Thank you very mouch
regards David [img]i/expressions/face-icon-small-wink.gif[/img]
#2
07-01-2008, 08:50 PM
Pro Rider
Join Date: May 2007
Location: Westcentral WI
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modifications for alcohol on a 2-stroke drag
One thing that you have to be concerned about is being a 2 stoke. Regular 2 stroke oil will not mix with methanol, I beleive you need to use peanut oil or something like it for mixing. If you send me a PM I will give you the number to my engine dude and he can help you out.
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