You should mirror polish the exshaust port but the intake port should be rough. Sand blasting the port with medium to course grit is the best. It makes more power because it atomizes the fuel better. We’ve proved this on the dyno many times. But good job. Looks good.
Nice, but when you removed the short and long radius on the intake, you created a crash for flow. It will not Swirl the atomized air around the valve stem.
I went wider on the beginning of the intake port and tapered it . But I didn’t go too big to where the gasket wouldn’t seal . Definitely felt a difference compared to a narrower intake port . I think as long as you keep the throat smaller it should be cool .
Great video young man and that go kart is lighting FAST!! Question, those sanding dremel bits that you had in that big plastic case that had 120-180 grit, did you buy that in a kit and if ya did where can I buy one or is it something you put together over time? Keep up the good work. 🫡
i bought them on amazon and got that plastic case from harbour freight to organize them. pretty much everything i used can be found on amazon. sorry it took me a few days to respond just saw the comment! thanks for watching!
i appreciate the advice. i tried blending that edge for better flow but i’m sure there’s a lot of cfm to be had by opening up a little around the valve. i would just have to see how much room i have until i’m at the head gasket. something i’ll definitely take a look at next time the head is off or the next big valve head i do! Thanks for watching!
You should mirror polish the exshaust port but the intake port should be rough. Sand blasting the port with medium to course grit is the best. It makes more power because it atomizes the fuel better. We’ve proved this on the dyno many times. But good job. Looks good.
Just remember your intake can’t be larger than your intake valve ! More cc than you need will definitely slow u down most noticeable on bottom end…
Nice, but when you removed the short and long radius on the intake, you created a crash for flow. It will not Swirl the atomized air around the valve stem.
Thanks for the tip and will take that advice for the next head i port. thanks for watching!
great video, showed me exactly what i needed to see to port my own head, thanks!
I went wider on the beginning of the intake port and tapered it . But I didn’t go too big to where the gasket wouldn’t seal . Definitely felt a difference compared to a narrower intake port . I think as long as you keep the throat smaller it should be cool .
Great video young man and that go kart is lighting FAST!! Question, those sanding dremel bits that you had in that big plastic case that had 120-180 grit, did you buy that in a kit and if ya did where can I buy one or is it something you put together over time? Keep up the good work. 🫡
i bought them on amazon and got that plastic case from harbour freight to organize them. pretty much everything i used can be found on amazon. sorry it took me a few days to respond just saw the comment! thanks for watching!
Nice job
Bravo Sir
did you port the intake manifold and exhaust flange too
Your defiantly gonna want to unshroud those valves. Thats like 30% of the valve that not gonna flow it true potential
i appreciate the advice. i tried blending that edge for better flow but i’m sure there’s a lot of cfm to be had by opening up a little around the valve. i would just have to see how much room i have until i’m at the head gasket. something i’ll definitely take a look at next time the head is off or the next big valve head i do! Thanks for watching!
How do you do that ? Is there a video that u recommend?
I was wrong with my previous comment. Kinda. There was other areas I had to open up .
😅