why cant a 2 stroke have a 4 stroke set up?

tjscott2012 · 01-25-2008, 07:30 PM

its quite simple actually. get some low octane gas, keep the intake valve. (or exhaust) keep a hole in the cylinder to serve as whatever valve you get rid of. specialize a camshaft. you still have the 2 stroke powerband. plus, you are being environmentally friendly (like i really care). that way, the 2 strokers will be left alone. so... i know there have to be holes all over this, but... what do you think?

wr250f95 · 01-25-2008, 07:56 PM

or you could just direct inject the fuel and add a heavy flywheel.

tigmaster · 01-25-2008, 09:00 PM

think about this. it would break hard. say you add an intake valve. so we have an intake stroke. then it heads up for the compression stroke. now when it goes down for the power stroke you have one of 2 choices. this would have to be your intake cycle as well as exhaust if you wanted to keep the 2 stroke setup. but if it is going down on a compression stroke the intake would backfire hard if the valve opened on the compression stroke. so that is super broken right there. now say you wanted to add an exhaust valve. well then you loose the 2 stroke powerband because the valve controls exhaust flow, not the pipe design. there, tig has spoken.

wr250f95 · 01-25-2008, 09:07 PM

I was pretty sure it wouldnt work which is why I said what i did.

tigmaster · 01-25-2008, 09:08 PM

yup, and then i backed you hard with the facts.

wr250f95 · 01-25-2008, 09:11 PM

plus he forgot the drive for the cam.

tigmaster · 01-25-2008, 09:13 PM

ya, but the valves are the major issue.

wr250f95 · 01-25-2008, 09:17 PM

if you wanted it to work right you would have a pathetic excuse for a 4 stroke eventually.

wr250f95 · 01-25-2008, 09:23 PM

besides I thought one of the pros for a 2stroke was less moving parts.

tigmaster · 01-26-2008, 07:02 AM

well, you would take away everything before it became a working engine again. this is why there are no engines made like this.

01-25-2008, 07:30 PM	#1 (permalink)
tjscott2012 The Spam man Join Date: Nov 2007 Location: Hurley, Mo Posts: 4,227	why cant a 2 stroke have a 4 stroke set up? its quite simple actually. get some low octane gas, keep the intake valve. (or exhaust) keep a hole in the cylinder to serve as whatever valve you get rid of. specialize a camshaft. you still have the 2 stroke powerband. plus, you are being environmentally friendly (like i really care). that way, the 2 strokers will be left alone. so... i know there have to be holes all over this, but... what do you think? __________________ 2 strokes 2 wheels

01-25-2008, 07:56 PM	#2 (permalink)
wr250f95 Super Moderator Join Date: May 2007 Location: New Mexico Posts: 7,418	or you could just direct inject the fuel and add a heavy flywheel. __________________ "LIFE'S JOURNEY IS NOT TO ARRIVE AT THE GRAVE SAFELY IN A WELL PRESERVED BODY, BUT RATHER TO SKID IN SIDEWAYS, TOTALLY WORN OUT, SHOUTING'...HOLY S**T... WHAT A RIDE!" this, is why I ride.

01-25-2008, 09:00 PM	#3 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,240	think about this. it would break hard. say you add an intake valve. so we have an intake stroke. then it heads up for the compression stroke. now when it goes down for the power stroke you have one of 2 choices. this would have to be your intake cycle as well as exhaust if you wanted to keep the 2 stroke setup. but if it is going down on a compression stroke the intake would backfire hard if the valve opened on the compression stroke. so that is super broken right there. now say you wanted to add an exhaust valve. well then you loose the 2 stroke powerband because the valve controls exhaust flow, not the pipe design. there, tig has spoken. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

01-25-2008, 09:07 PM	#4 (permalink)
wr250f95 Super Moderator Join Date: May 2007 Location: New Mexico Posts: 7,418	I was pretty sure it wouldnt work which is why I said what i did. __________________ "LIFE'S JOURNEY IS NOT TO ARRIVE AT THE GRAVE SAFELY IN A WELL PRESERVED BODY, BUT RATHER TO SKID IN SIDEWAYS, TOTALLY WORN OUT, SHOUTING'...HOLY S**T... WHAT A RIDE!" this, is why I ride.

01-25-2008, 09:08 PM	#5 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,240	yup, and then i backed you hard with the facts. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

01-25-2008, 09:11 PM	#6 (permalink)
wr250f95 Super Moderator Join Date: May 2007 Location: New Mexico Posts: 7,418	plus he forgot the drive for the cam. __________________ "LIFE'S JOURNEY IS NOT TO ARRIVE AT THE GRAVE SAFELY IN A WELL PRESERVED BODY, BUT RATHER TO SKID IN SIDEWAYS, TOTALLY WORN OUT, SHOUTING'...HOLY S**T... WHAT A RIDE!" this, is why I ride.

01-25-2008, 09:13 PM	#7 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,240	ya, but the valves are the major issue. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

01-25-2008, 09:17 PM	#8 (permalink)
wr250f95 Super Moderator Join Date: May 2007 Location: New Mexico Posts: 7,418	if you wanted it to work right you would have a pathetic excuse for a 4 stroke eventually. __________________ "LIFE'S JOURNEY IS NOT TO ARRIVE AT THE GRAVE SAFELY IN A WELL PRESERVED BODY, BUT RATHER TO SKID IN SIDEWAYS, TOTALLY WORN OUT, SHOUTING'...HOLY S**T... WHAT A RIDE!" this, is why I ride.

01-25-2008, 09:23 PM	#9 (permalink)
wr250f95 Super Moderator Join Date: May 2007 Location: New Mexico Posts: 7,418	besides I thought one of the pros for a 2stroke was less moving parts. __________________ "LIFE'S JOURNEY IS NOT TO ARRIVE AT THE GRAVE SAFELY IN A WELL PRESERVED BODY, BUT RATHER TO SKID IN SIDEWAYS, TOTALLY WORN OUT, SHOUTING'...HOLY S**T... WHAT A RIDE!" this, is why I ride.

01-26-2008, 07:02 AM	#10 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,240	well, you would take away everything before it became a working engine again. this is why there are no engines made like this. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

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