Dave walks us through the journey of making the toughest shape in head porting, a circle! He shows some of his techniques on how to keep a circle a circle.
i like his “less is more” attitude you see in all his work not only does this theory prevent (often) excessive jobs out there-his usually not asking you too spend all the money if it’s not needed too reach your goals.
Love it, thanks for sharing. Anything in the 4g63 realm would be awesome. I'm about to pull the drivetrain in my 95 talon and go over somethings. I have some spare heads to try on, if I could do some port work while it's apart that would be awesome. Mild street build for daily driving. Also I love knowing what not to do, so avoiding myths like gasketing matching is awesome to know. Knowing what a mistake is and avoiding it is priceless
Thankyou. You could polish it only and that would help,... but how much. I bet it would help. I know this sounds crazy but the the German pilots in WWII would have their technicians buff the wings to get their interceptors to go faster. They knew their stuff. @@headgames
Very nice. Seems like patience and a relaxed attitude is the best tool when porting. Looks really effortless 👍 I have oe-heads where the bowl is too big. Have been trying to find out what to do to remedy this. Is there some tricks with porting one can do or is it just filling with epoxy that is the solution? Ive been a little hesitant to put in epoxy, not sure one can trust it to stay put on a street engine? Engine is a gm 3.4 v6.
How 'bout some Ford modular head work. Nobody does anything with the Ford Modular "B" head. That would be so cool!! Even just a basic street work. Particularly bowls.
Sorry, not a head we work on. I’ve actually only seen one set of B’s in my 22 year career lol but all the techniques and theories I show apply to any cylinder head
If you would starting a head from scratch would you use a round , oval , square or a rectangle for the intake and exhaust on 2 valve 500cc hemi style motorcycle head. ambiguous question i know
CNC works to shape the port but I've never seen a CNC beat the finish done by hand. If you are doing a limited number of heads, or you have different ports for different customer needs. It makes no sense to program the CNC for such rare jobs. CNC is for production, it only duplicates what was originally ported by hand.
I have ported 2 and 4 strokes. A single cylinder is no problem but multiple cylinders is. All ports must have the same flow and volume and by hand it is totally impossible. Still you can get about 87 procent of the 100 procenr efficiency
I have a Nissan with the “hart” shape intake, looking to put itb’s on. What would you do if anything, change the intake shape to match? The itb intake is round and with what little knowledge I have, it seems like I would have a slow moving airflow just after the round itb intake. Any help would be appreciated! Loved your podcast interview with hp academy.
@@headgames thanks, but I think this would be a waste of your time. Appreciate it. I can’t imagine this is on you radar. However I am in it to learn and interested how I can aid flow/volocity/ ultimately power. As I said the transition isn’t smooth and was really thinking of reshaping the intake to match the ITB runners. If I had a pipe and half way down we had a step, making it wider. The roof of this pipe is now almost doubled but returns to original size quickly. (It where the og injector would be) this must adversely affect flow and turbulence?
@@greigthomson8475 It sure doesn't seem like you comprehend anything. Why ask a specific question, then say it's a waste of time to answer? You are a waste of time. Thanks for contributing nothing of value to the discussion.
Please help I want to turn a motorcycle head into a two plug head I have look everywhere and cannot find the importance of A SPARK PLUG FLAME PATH ANYWHERE SO I AM BACK TO THE MASTER CHEERS BRIAN
4G63 heads are another one that make no sense to gasket match. It takes too long to teach fluid dynamics, velocity and reversion to customers, I just say sign here that I advised against doing that X. Less is more, especially on a street car. Don't call me saying how much torque you lost, this is what you asked for.
i like his “less is more” attitude you see in all his work
not only does this theory prevent (often) excessive jobs out there-his usually not asking you too spend all the money if it’s not needed too reach your goals.
Thanks! And you are correct!
The way you explain how and why you do it is perfect for me to understand. Still combing through the library and learning.
Love it! Binge!
Thanks for teaching your tricks. Very nice work!
I just had this issue today doing a 2 stroke exhaust port. Thanks so much for the tips :D Love from New Zealand.
Thanks for watching!
Thanks for the teachings Sir ,very well appreciated .
thanks for watching!
Have u ever used a steel rod with a slot cut in the end ,the sandpaper go in the slot and makes the port perfect formed
yes! But the flapper won't make it perfect as a roll. Only use the flapper on the short turns.
Love it, thanks for sharing. Anything in the 4g63 realm would be awesome. I'm about to pull the drivetrain in my 95 talon and go over somethings. I have some spare heads to try on, if I could do some port work while it's apart that would be awesome. Mild street build for daily driving.
Also I love knowing what not to do, so avoiding myths like gasketing matching is awesome to know. Knowing what a mistake is and avoiding it is priceless
There’s a few vids already on porting stuff for the 4G on our TH-cam
Just caught that looking through your library, gonna watch em now, thank you. Cheers
Feel free to ask questions! Enjoy!
Great video
Thanks for watching!
Hi! Nice work and videos.
Thanks!
Great stuff. Some idea of sanding, smoothing and buffing would be great.
No buffing. That is far too much. 120grit at most
Thankyou. You could polish it only and that would help,... but how much. I bet it would help. I know this sounds crazy but the the German pilots in WWII would have their technicians buff the wings to get their interceptors to go faster. They knew their stuff. @@headgames
@@Spitfireseven polishing a port does absolutely nothing. You have to move material to make a port better.
Thankyou so much for posting a response. Right now the surface is like 10 sandpaper. Almost anything would be better. @@headgames
Very nice. Seems like patience and a relaxed attitude is the best tool when porting. Looks really effortless 👍
I have oe-heads where the bowl is too big. Have been trying to find out what to do to remedy this.
Is there some tricks with porting one can do or is it just filling with epoxy that is the solution?
Ive been a little hesitant to put in epoxy, not sure one can trust it to stay put on a street engine?
Engine is a gm 3.4 v6.
Thank you
Very welcome
I gasket matched my diesel
And it’s been incredible ever since.
How 'bout some Ford modular head work. Nobody does anything with the Ford Modular "B" head. That would be so cool!! Even just a basic street work. Particularly bowls.
Sorry, not a head we work on. I’ve actually only seen one set of B’s in my 22 year career lol but all the techniques and theories I show apply to any cylinder head
Great information for newbs, how do you know how much material to remove from the ports? is there a formula for width and height and length?
yeah I agree, you're very nervous 😅.
Excellent info, well presented. Top job.
Have you ever done any Ford modular 4.6 2v ?
yes sir. Many. Years ago.
If you would starting a head from scratch would you use a round , oval , square or a rectangle for the intake and exhaust on 2 valve 500cc hemi style motorcycle head. ambiguous question i know
I would never use anything but an oval when porting.
You didn’t make the circle
You started with a perfect circle.
You just made it bigger
The video was so good that i forgot why I clicked... but I have to agree with you!
I wanna see the dog leg on a subaru, both the fin and the inside wall on the dog leg that is hard to see, thanks and keep up the good work..
Love all the info, question for you why do hand vs CNC? Once the program is set up for the machine, it can duplicate it numerous time
Yes we have many heads digitized. The CNC is much faster.
CNC works to shape the port but I've never seen a CNC beat the finish done by hand.
If you are doing a limited number of heads, or you have different ports for different customer needs. It makes no sense to program the CNC for such rare jobs.
CNC is for production, it only duplicates what was originally ported by hand.
Excellent channel, please keep the content coming 👍🏻. Have you ever done anything with the Ford zetec/svt 2.0 l heads?
+1 for this
I have ported 2 and 4 strokes. A single cylinder is no problem but multiple cylinders is. All ports must have the same flow and volume and by hand it is totally impossible. Still you can get about 87 procent of the 100 procenr efficiency
How about, some SBF?
I have a Nissan with the “hart” shape intake, looking to put itb’s on. What would you do if anything, change the intake shape to match?
The itb intake is round and with what little knowledge I have, it seems like I would have a slow moving airflow just after the round itb intake. Any help would be appreciated! Loved your podcast interview with hp academy.
thanks for watching! What head are we speaking about, I will look it up.
@@headgames thanks, but I think this would be a waste of your time. Appreciate it.
I can’t imagine this is on you radar.
However I am in it to learn and interested how I can aid flow/volocity/ ultimately power. As I said the transition isn’t smooth and was really thinking of reshaping the intake to match the ITB runners.
If I had a pipe and half way down we had a step, making it wider. The roof of this pipe is now almost doubled but returns to original size quickly. (It where the og injector would be) this must adversely affect flow and turbulence?
@@greigthomson8475 He asked you what engine you are talking about so he can answer your question
@@davidparker9676 I know. I can read. Thanks for you input 👍
@@greigthomson8475 It sure doesn't seem like you comprehend anything.
Why ask a specific question, then say it's a waste of time to answer?
You are a waste of time.
Thanks for contributing nothing of value to the discussion.
So how do you make the same port to the intake without gasket matching
Do you do diesel heads as well? I have a common rail 5.9 head i wanna make breathe a lil better
Привет дружище, подскади пожалуйста как ьы определяешь сколько можно убирать стенку канала чтоб не попасть в рубашку охлаждения? Спасибо
How do you round off a square port?
How do circle ports flow compared to regulars ones?
hi ... i need clear the hot spot on piston ?
@@TheSol115 I wouldn’t say that someone should be modifying pistons
Do you do motorcycle heads ?
Please help I want to turn a motorcycle head into a two plug head I have look everywhere and cannot find the importance of A SPARK PLUG FLAME PATH ANYWHERE SO I AM BACK TO THE MASTER CHEERS BRIAN
Brian I have never heard of doing something like that. Good luck!
How can I purchase a burr like yours
our website! www.headgamesmotorworks.com
4G63 heads are another one that make no sense to gasket match.
It takes too long to teach fluid dynamics, velocity and reversion to customers, I just say sign here that I advised against doing that X.
Less is more, especially on a street car.
Don't call me saying how much torque you lost, this is what you asked for.
Good porting guide , ... Bloody awful music !
lol sorry to disappoint