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Old 10-15-2009, 02:37 AM   #1
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Default What About 4Stroke!

Just wanted to see other peoples thought about this.If it ever happens what would mean for our hobby/sport?I think it would be cool.With todays cars being lighter the weight would not be a problem and the slightly lower power output.Lets hear what you guys think.
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Old 10-15-2009, 04:27 AM   #2
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4-Stroke? Why? The cost to make it would make it out and out crazy. I'm not buying a 1,000$ mill just to say I have one.
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Old 10-15-2009, 05:39 AM   #3
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what would be the point?
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Old 10-15-2009, 06:42 AM   #4
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Why would weight be a problem? A Saito .54 weighs about the same as a OS .28 xz last time I checked.

Have you seen one? Awesome performance in a truggy. A little less top end. Improved torque, throttle response, tune, less wheel spin.
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Old 10-15-2009, 07:01 AM   #5
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what would be the point?
Less noise smoother power band better run time longer engine life easer to tune holds tune better and sounds cooler.Dont you run 500$ os speed.
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Old 10-15-2009, 07:13 AM   #6
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4-Stroke? Why? The cost to make it would make it out and out crazy. I'm not buying a 1,000$ mill just to say I have one.
It would not cost 1000$.Only if it were os would it cost that much.We are getting screwed by engine manufactures any way you look at it.
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Old 10-15-2009, 07:34 AM   #7
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actually, OS did if for Kyosho a few years back on a Superten (kinda scaled up 10th scale onroad)... it was expensive, but defo not priced out of the market.

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Old 10-15-2009, 07:37 AM   #8
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Someone has a 4 stroke conversion out for the GT2 now. I would love to see one for 8th scale buggy, would be pretty cool I think.
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Old 10-15-2009, 07:41 AM   #9
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Yes i have seen the os engine you speak of.But i would not say that was a ground up design.We need a 4stroke engine designed for 1/8 scale specificly.
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Old 10-15-2009, 07:46 AM   #10
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4 stroke engine dont make as much power per cc as a 2 stroke. so if you took a .21 four stroke agenst a .21 two stoke the two stroke would dominate. bringing in the four stroke would have to mean that they would need to make a handicap size just so the four troke can keep up. I just dont se RC racing going in this direcion..
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Old 10-15-2009, 07:55 AM   #11
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As i said the cars are getting very light.Every one is going for runtime now and as a result the engines are making less power.Yes 4stroke make less power.Every one knows that.But with todays teck.i think they would be very good.Our cars are over powerd as is.Ever watch motor cross.
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Old 10-15-2009, 07:56 AM   #12
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Yes, we would have to run around .48-.51 size engines.

If the clubs allow electric in with nitro, I don't see why they wouldn't allow bidg 4-strokes or .28 2's in buggies.

If the rules are open enough to run electric or nitro together, their open enough for nearly any powerplant.



Some have run 4 stroke airplane engines in their truggies. It worked well enough. A 4 stroke specially desighned for cars would be way better.

I don't expect any engine companys to have the balls to produce one any time soon.

They'd make one, and all the Momos would blow it up quickly. They'd get a bad rap and all that R&D $$$ would be wasted. From a manufacturer stand point, it deosn't look like a safe bet to produce.
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Old 10-15-2009, 07:57 AM   #13
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I used to run karts and you had the option of 2-stroke vs 4-stroke. the 2 stroke motors were lighter, faster and cheaper. The 4 strokes used a whole lot more fuel too. It would be tough to set up rules to keep parity. the 4 stroke would need to be bigger in size and have bigger fuel tanks.
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Old 10-15-2009, 08:03 AM   #14
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I used to run karts and you had the option of 2-stroke vs 4-stroke. the 2 stroke motors were lighter, faster and cheaper. The 4 strokes used a whole lot more fuel too. It would be tough to set up rules to keep parity. the 4 stroke would need to be bigger in size and have bigger fuel tanks.
I have a buddy that used to race carts.The engines your talking about are oollldscool.I think modern 4stroke would be 20% to 30% better on fuel econ.
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Old 10-15-2009, 08:07 AM   #15
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There is three advantages 2stroke have over 4stroke.Cost wight peak power output for given wight.Thats it.
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