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- 4:22 PM
- Joined
- Jun 11, 2009
- Messages
- 27
Tired of grinding out the stock intake manifolds for better flow and port matching? I have been building these custom port matched intakes for the two strokes. Here is a shot of the manifold before I hit it with the scotch brite pad. Ported stock aluminum on the left, custom one on the right. I made a CAD drawing of the old flange perimeter and then carefully measured and drew up the cylinder port. Laser cut a bunch of cylinder matched stainless flanges. I then made a small die to press the round tube to the rectangle shape of the cylinder port so the flow path smoothly contours into the cylinder. Tig welded together. These manifolds really open up the two strokes. Seems to make the engine run smoother, also.
Here is one cleaned up and mounted on a build that still has a ways to go. Don't worry about the carb, it's just a junk spare used for fitting purposes.
Here is one cleaned up and mounted on a build that still has a ways to go. Don't worry about the carb, it's just a junk spare used for fitting purposes.
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