Post up your ported cylinder Artwork

[MG porting]

Have to admit it's a little intimidating posting up port work. But I started this cylinder today with the intent of posting pics. It was a good way to challenge myself. I never do sloppy work but I did go back and clean up a few imperfections after taking the first pics ;-) Damn camera can be pretty critical

Lol. Yep cameras normally don't lie.

 

[redlight066]

Lol. Yep cameras normally don't lie.

Hmmmmmm are those Photoshopped? Never mind wrong jug pic

 

[dustinwilt68]

Now that's some beautiful port work

 

[MG porting]

View attachment 151873

Hmmmmmm are those Photoshopped? Never mind wrong jug pic

Lol yep that camera can lie all it wants because that is a good looking woman. But please don't tell my lady that I said that or she'll never let me sleep in the bed ever again.

 

[redlight066]

Lol. Gotcha

 

[Bbintwn]

View attachment 151873

Hmmmmmm are those Photoshopped? Never mind wrong jug pic

i wondered what happened to her guess I left her Wednesday when I left send her home if you get a chance buddy

 

[mettee]

I wanted to ask, hope yall don't mind too much.

Intake side, when porting the intake how much overlap do you go with for the skirt on each side of the intake?

.020
.030
.040
.050

ETA: Dolmar 7910 p&c

 

[huskihl]

I wanted to ask, hope yall don't mind too much.

Intake side, when porting the intake how much overlap do you go with for the skirt on each side of the intake?

.020
.030
.040
.050

I try leaving 1mm on intake and exhaust if it's under 70% bore width. Just be mindful of where your ring ends are

 

[mettee]

I should have added dolmar 7910 to the equation. Piston to wall is good if that helps get it wider

 

[MG porting]

I wanted to ask, hope yall don't mind too much.

Intake side, when porting the intake how much overlap do you go with for the skirt on each side of the intake?

.020
.030
.040
.050

ETA: Dolmar 7910 p&c

Like

I wanted to ask, hope yall don't mind too much.

Intake side, when porting the intake how much overlap do you go with for the skirt on each side of the intake?

.020
.030
.040
.050

ETA: Dolmar 7910 p&c

Like huskihl said 1mm on each side and pay close attention to where the rings are located before you start porting and mark the location pins with a ink pin or pencil on top of the piston and mark the ports on both sides up to the base then you will get a good idea how far you can go.

 

[MustangMike]

FYI, 1mm = approx. .040.

 

[mettee]

I have about .060 on both sides now....

When I look into the intake I can see the rig end pin, so the gap is inside the intake, or exactly on the edge to where it is ported. I need to throw this on the saw and see for sure, but that is what it looks like outside the saw.

Anything to worry about?

 

[Fruecrue]

I have about .060 on both sides now....

When I look into the intake I can see the rig end pin, so the gap is inside the intake, or exactly on the edge to where it is ported. I need to throw this on the saw and see for sure, but that is what it looks like outside the saw.

Anything to worry about?

Yes.
Put it on the saw to be sure.
I wouldn’t be happy about being able to see the ring end.

 

[mettee]

I need to pull the carb housing to get a better view, but I think its in the intake.

I might have to move the ring end, if its possible

 

[Fruecrue]

I need to pull the carb housing to get a better view, but I think its in the intake.

I might have to move the ring end, if its possible

Would dropping the jug alleviate the problem?

 

[AlfA01]

Yes.
Put it on the saw to be sure.
I wouldn’t be happy about being able to see the ring end.

+1. May have to install the piston backwards.

 

[AlfA01]

I need to pull the carb housing to get a better view, but I think its in the intake.

I might have to move the ring end, if its possible

You can move the locator pin. Someone here posted about it recently..

 

[AlfA01]

Roughed in fingers on Taiwan practice jug. My first time attempting fingers.

 

[PA Dan]

Roughed in fingers on Taiwan practice jug. My first time attempting fingers.

View attachment 154391

I hope my first attempt look that good!

 

[mettee]

Would dropping the jug alleviate the problem?

Based on measured squish, I am bringing it down .040 ish. I cant tell if that will solve that problem or not. Once I get the carb housing out I will let you know.