Does anyone do muffler mods anymore? If so, post up your saw model, pictures, and description. If this thread shapes up decent, maybe it will get 'stickied'.
I'll start.
Saw: Shindaiwa 757
The muffler is built well but fairly restricted. Just look at the OE outlet. I really like the 046 Stihl dual port, so I wanted to clone it.
Step 1: clean muffler and layout. I bead blasted it and used vinyl pinstriping tape.
Step 2: cut. I used a pneumatic cut off saw with small 3" thin wheel.
Step 3: layout new design on sheetmetal. Cut and bend up in vise. Check fitment.
Step 4: weld or braze. I did both as I needed to repair some other areas. Cut port. Drill, die grinder or file as desired. Bead blast again.
Step 5: paint and install. Notice how I opened up the OE exhaust outlet as well.
Step 6: Go cut wood, burn more gas, make more noise.
I'll start.
Saw: Shindaiwa 757
The muffler is built well but fairly restricted. Just look at the OE outlet. I really like the 046 Stihl dual port, so I wanted to clone it.
Step 1: clean muffler and layout. I bead blasted it and used vinyl pinstriping tape.
Step 2: cut. I used a pneumatic cut off saw with small 3" thin wheel.
Step 3: layout new design on sheetmetal. Cut and bend up in vise. Check fitment.
Step 4: weld or braze. I did both as I needed to repair some other areas. Cut port. Drill, die grinder or file as desired. Bead blast again.
Step 5: paint and install. Notice how I opened up the OE exhaust outlet as well.
Step 6: Go cut wood, burn more gas, make more noise.