Mammoth
Member
There's a couple motors out there that I don't see very often, but I always keep my eyes peeled in case one should happen by.
I recently came across these 2 engines that I would have never guessed they'd cross my path here in the U.S.
They are 2 stroke 685cc torque monsters built for sidecar motocross over in Europe.
They came with two extra cylinders/heads, a box full of gaskets and 5 pistons.
Finally in my possession after years of watching and waiting I knew exactly where these were going.
Around here they race winged outlaw karts and thats the plan for these.
With no hesitation progress began. Purchased a 2014 QRC Area 51 open roller from a local racer.
Built a mount for the engine. Making the engine sit as low as possible keeping the weight close to the ground.
And here it is in its new mount. The first thing people notice about these is how massive the cylinder really is.
---------- Post added at 11:04 AM ---------- Previous post was at 10:46 AM ----------
The size of the reed cage made me think that this thing is starving for air, so I purchased the largest reed cage they make. It was supposed to go on a Z1000 snowmobile, but it will work well for this.
The intake was smaller than the new reed cage, and it was at an angle to fit into a motorcycle frame. I milled it flat in order to straighten out the air flow and then added a bunch of aluminum to the left side.
Then the grinding and porting began. The side ports really got opened up.
Made a bracket for the reeds to bolt on to.
Here is the reed mounting bracket over the stock intake for size comparison.
After it was opened up.
Reeds in place.
I recently came across these 2 engines that I would have never guessed they'd cross my path here in the U.S.
They are 2 stroke 685cc torque monsters built for sidecar motocross over in Europe.
They came with two extra cylinders/heads, a box full of gaskets and 5 pistons.
Finally in my possession after years of watching and waiting I knew exactly where these were going.
Around here they race winged outlaw karts and thats the plan for these.
With no hesitation progress began. Purchased a 2014 QRC Area 51 open roller from a local racer.
Built a mount for the engine. Making the engine sit as low as possible keeping the weight close to the ground.
And here it is in its new mount. The first thing people notice about these is how massive the cylinder really is.
---------- Post added at 11:04 AM ---------- Previous post was at 10:46 AM ----------
The size of the reed cage made me think that this thing is starving for air, so I purchased the largest reed cage they make. It was supposed to go on a Z1000 snowmobile, but it will work well for this.
The intake was smaller than the new reed cage, and it was at an angle to fit into a motorcycle frame. I milled it flat in order to straighten out the air flow and then added a bunch of aluminum to the left side.
Then the grinding and porting began. The side ports really got opened up.
Made a bracket for the reeds to bolt on to.
Here is the reed mounting bracket over the stock intake for size comparison.
After it was opened up.
Reeds in place.