Lightning Performance
Here For The Long Haul!
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The the entry and exit angles of new 2smoke jugs speak volumes, literally.
Part One: The Exhaust Port
- Thread starter Mastermind
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Nice. How much weight did that remove lol.
Lightning Performance
Here For The Long Haul!
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Double check that floor and tare some of the center down on the chamfer/bevel. Easy on those rigs.
BonScott46
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Purdy.
lauren
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lauren
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Yes Deets that and kawasaki h2s, had retired from porting about 10 years ago, started in 1988
Deets066
AKA Deetsey
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I like the taper from the top of the port to the bottom. I did a little of that on my 84 jug, can't see it from the outside pic though. I'll get one from the inside.
How much of the top of the port did you close off?
lauren
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No free porting. I made that upper wedge out of 3/8 plate, lets also remember that all my research over the years was done using chambers, still having a hard time using mufflers but i will keep at it to come up with a program using a pressure gauge
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Looks like you've created a Husky style downward flowing exhaust outlet on a Stihl jug.
Very interesting.
Very interesting.
lauren
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When I had the race shop, I did a flow bench work and came up with certain angles that worked the best, again using a chamber, and backed all my findings with my dyno, now will this work Im not sure, I bought this saw back in December and it was a slug as far as I was concerned, early D cylinder, so I figured I would try a A M cylinder for 20.00, put that cylinder on and the saw picked up a great deal, still was not satisfied and probably never will be, so I made some more changes this past week and way more power, got to run it for a little bit yesterday against my brother in laws 460 and it miles ahead
