Mastermind
Work Saw Specialist
I get a lot of guys asking questions about port work. I'm building a really nice 026 for a member and thought I would show a stock jug side by side with a ported jug. This would be a great thread to throw out any questions about porting. If I can't answer them there are many guys here that can.
In this shot you can see that I didn't really enlarge the intake much, just smoothed out the casting lines and blended it out.
I just take the lip out of the lower transfers on a mild work saw. I don't find it necessary to open them any more on a work saw of this size.
I spend much more time on the upper transfers than the lowers. Here I've widened these as much as possible, and raised them a few degrees as well.
The exhaust port gets quite a bit of work. I widen the port, and increase the outlet size as well. On this saw the port is already fairly high (164° duration - 98° from TDC) so it's not been raised at all.
The shiny spot in the center of the exhaust port is the plating, like I mentioned above this port is at the stock height, only widened.
In this shot you can see that I didn't really enlarge the intake much, just smoothed out the casting lines and blended it out.
I just take the lip out of the lower transfers on a mild work saw. I don't find it necessary to open them any more on a work saw of this size.
I spend much more time on the upper transfers than the lowers. Here I've widened these as much as possible, and raised them a few degrees as well.
The exhaust port gets quite a bit of work. I widen the port, and increase the outlet size as well. On this saw the port is already fairly high (164° duration - 98° from TDC) so it's not been raised at all.
The shiny spot in the center of the exhaust port is the plating, like I mentioned above this port is at the stock height, only widened.