Login

u/soepballs

Image 1 — Self adjustable variable diameter stacks Kawasaki 454 pictures
Image 2 — Self adjustable variable diameter stacks Kawasaki 454 pictures
Image 3 — Self adjustable variable diameter stacks Kawasaki 454 pictures
Image 4 — Self adjustable variable diameter stacks Kawasaki 454 pictures
Image 5 — Self adjustable variable diameter stacks Kawasaki 454 pictures
▲ 78 r/3dprintedcarparts

Self adjustable variable diameter stacks Kawasaki 454 pictures

Some pictures of the design, and next to the old PETG stacks and filters.

u/soepballs — 18 hours ago
▲ 93 r/3dprintedcarparts

Made self adjusting variable diameter intake stacks for my Kawasaki 454

Wanted to delete my PITA airbox on my Kawasaki and put cold air Pod filter intake on it, but CV carbs don't like pod filters. So I played around with intake restrictions to make them work.

Original intake diameter was 40mm and it barely ran. Put in a 20mm restriction and it had great response down low but could get past 6k rpm. Put in a 30mm and it was kinda bad down low but pulled great on top. Played around with some sizes and shapes but could never get a perfect powerband.

Then I had an idea what if I could have the down low power of 20mm and the top of 30mm restriction. Got some old TPU out of storage and this was the result. It's 20mm with low airflow, and gets up to 30mm when fully open. Worked perfectly the first try, no more deadspots and pulls steadily until the redline.

u/soepballs — 20 hours ago