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atc500x
05-10-2020, 11:31 PM
Long time I didn't post a project here but I Always look the thread.Life change but will Always be in the ATC world.My brain give me an idea and I have to try it.Fit a 250R in a atc70.First problem,cylinder head clearance,solution? laydown…. I have see it with a aircooled but not with the liquid..

I will have to build a custom frame.Many years ago I start s built with a sl70 frame and a lifan 140,it run but I never finished the project.I will use the custom fork and swingarm for this built
HondaRidr
05-22-2020, 12:28 PM
Any progress?
atc500x
05-24-2020, 11:10 PM
I will try to have time to finish the engine this Week...2 custom gasket to do and it's done...
Red Rider
05-25-2020, 01:17 AM
Interesting project. Will the counter-balancer be removed completely, or relocated?
atc500x
05-25-2020, 07:35 AM
Removed, yes I know it will vibrate more than originally…
atc500x
05-26-2020, 10:41 PM
More progress, now the frame....
atc500x
08-26-2020, 09:07 PM
264121264122264123264124

The project seem to have low interrest but Here are some progress ,custom frame, need to tear it down and finish all weld,sandblast and paint, New fender are coming, same lenght as a stock 70 , 1 1/2 inch higher on top of tank
HondaRidr
08-28-2020, 02:58 PM
This is going to be really neat! It will be a beast to control being stock length haha.
Blmpkn
10-19-2020, 06:26 PM
Everything else thats ever been labeled "death machine" is going to need a new label after this. Awesome.
rayatc84
10-20-2020, 05:02 PM
Really no idea how could I have missed this thread...

Awesome construction!

There was a time where this thread would have had much more interest here.
jasong_10
10-20-2020, 08:33 PM
Everything else thats ever been labeled "death machine" is going to need a new label after this. Awesome.

Yeah, my R is stock and I couldn't imagine that power in a chassis half the size . . .
atc500x
10-25-2020, 01:57 AM
There was a time where this thread would have had much more interest here.

Exactly what I think....
atc500x
11-14-2020, 08:39 AM
Finally! Assembly done,will do startup soon if weather is good...
shortline10
11-14-2020, 01:36 PM
Your going to need wheelie bars lol .
Awesome job !!
Blmpkn
11-14-2020, 01:47 PM
Too cool. Congrats!
jasong_10
11-14-2020, 11:44 PM
That looks awesome, great job and be careful.
atc500x
11-23-2020, 11:50 PM
I will do a better on next year,stored for winter

https://www.youtube.com/watch?v=m6UxsPO0YXk&feature=youtu.be
Red Rider
11-24-2020, 01:08 AM
Nice job! Congrats on getting it finished up.
jasong_10
11-24-2020, 10:43 PM
Cool vid. That looks like it has the potential be a pretty scary ride if held at WOT for more than half a second, lol.
atc500x
11-24-2020, 11:01 PM
With thoses tire,cornering is almost impossible,waaaaaayyyyyy too much power, I will wait nex summer to get the carb perfect with a warm temperature
jasong_10
11-24-2020, 11:23 PM
Would you gain much from a set of spacers? Nothing crazy, 1/2" or 1" per side.
atc500x
11-25-2020, 08:41 AM
Not sure,may try,but I'm sitting straight on the axle,the front is very very light....
sledcrazyinCT
11-25-2020, 07:35 PM
You are very talented it appears you make many cool creations! You can tell in the video the front end of that 70 wants to kiss the sky.

Your other videos are very impressive. Love the 140cc twin build that CT70 is one of a kind!


https://www.youtube.com/watch?v=7KklDSsMBLc
jasong_10
11-25-2020, 10:21 PM
I apologize as I should have mentioned this much earlier during the build process (I'm sure you'd already thought of it though), what about an extended swingarm?
legacy51
02-07-2021, 12:21 PM
This thing is nuts! What rear end are you using?
wild200x
02-07-2021, 07:35 PM
I know this is a bit old but I missed it. Wished I would have been here looking. especially at the motor conversion I had no Idea it was even possible to lay down a cylinder like that. I wish I had been here to ask more about it and ask for more detailed pics on more writing about all that I just see a couple pics and bam its a sideways 250r motor. SHOCKED. Sorry I missed this and you are right to say earlier it should have gotten more looks. everyone just needs to figure out how good this is compared with alternatives. Something like this on fakebook would be burred forever!
ATC King
02-09-2021, 12:24 PM
There was another of these, done with an air cooled R, but I don't remember who it was.

The trike got stolen though and I don't think he ever recovered it.
rayatc84
02-09-2021, 05:45 PM
There was another of these, done with an air cooled R, but I don't remember who it was.

The trike got stolen though and I don't think he ever recovered it.

It's Mart from Australia:
http://www.3wheelerworld.com/showthread.php/59190-laydown-250r-motor-(fast-70-pics)
http://www.3wheelerworld.com/showthread.php/112923-300cc-2-stroke-70-(RIDE-VIDEO-NOW-UP)
atc500x
02-11-2021, 08:42 AM
This thing is nuts! What rear end are you using?

atc125 axle with custom swingarm
atc500x
02-11-2021, 08:46 AM
I know this is a bit old but I missed it. Wished I would have been here looking. especially at the motor conversion I had no Idea it was even possible to lay down a cylinder like that. I wish I had been here to ask more about it and ask for more detailed pics on more writing about all that I just see a couple pics and bam its a sideways 250r motor. SHOCKED. Sorry I missed this and you are right to say earlier it should have gotten more looks. everyone just needs to figure out how good this is compared with alternatives. Something like this on fakebook would be burred forever!

The picture you see here are the picture I took.I hate lost my time took thousands of picture during work....

There is A LOT more time building the frame around the engine,than built the engine itself....