Maximizing Flow: Porting the 2nd Gen 4G63!
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- Опубликовано: 26 дек 2024
- In this video, we dive deep into the art of porting the legendary 2nd generation 4G63 engine. Discover how precision porting can enhance airflow, improve efficiency, and unlock the performance potential of this turbocharged classic.
We’ll break down the tools, techniques, and tips for achieving the perfect port. Whether you’re looking to maximize your street car’s performance or preparing your 4G63 for track domination, this guide has you covered.
🔧 What to Expect:
A step-by-step overview of the porting process.
Key areas to focus on for better flow and power gains.
Expert tips for achieving proven results at home. OR just send them in!
Don’t forget to like, comment, and subscribe for more in-depth content on building and porting cylinder heads!
#4G63 #PocketPorting #MaximizingFlow #EngineBuilding #CarPerformance #DIYPorting
DSM content!?!?! What a CHRISTMAS present!!! Thank you Dave! Merry Christmas to you and the family!
just for you buddy. Thanks for being a great fan.
Yes we out here😊
Kinda thought you would flow test ported vs stock
OH HECK YEAH! Merry Christmas Dave!
@@Jafromobile Merry Christmas to you!
I believe I was your last client that you hand ported a 2G, right after you got the CNC machine
*Introduces Dave to The early Ford Cleveland racers adding material to the exhaust port to raise the roof and move the floor up* about that gasket matching ...
You learn that by adding clay how to flow bench and start seeing all kinds of cool stuff happen raise the floor raise the roof straighten that angle into the back of the valve
Yep you learn that on a flow bench when you start putting Clay on it. Before the days of custom castings Bob Glidden had heads where the ports were almost completely made out of lab metal and aluminum tubing literally the entire port was glued together😂
@@blaqlabspodcast5816 For those that don't know early pro stocks used stock parts. Cleveland heads the ports faced down because ford used shock towers. Bob literally milled the tops of the exhaust ports off and made fabbed metal plates to fit over the port to raise the exhaust port. It's really cool if you can ever find the articles in hotrod and other mags explaining what he did and why.
Whose watching these videos on night shift? Tons of information. Moto IQ is great too...
thank you sir!
I’m a Ford guy 1979 and up but I watch all your head porting videos. You can always learn from other designs.
Hi I Front Brazil thanks for all your technique work. You are the Best
thanks!
You can increase port taper by making it larger at the mouth and then working the cross section gradually smaller as it approaches the valve
Thank you for the 4g content. Keep it coming 👍👍🙏
Thank you for this! Also appreciate you mentioning the gasket match thing... unfortunately too common
Merry Christmas! Are the fa20s hand ported or cnc'd? Your titanium studs are awesome
FA's are hand ported at the moment. We don't do enough of them to digitize just yet.
I remember Honda's blowing up and I was thinking why doesn't somebody get it on these DSMs!
AWD+Turbo = Awesome 👍 😎
Ah ...it's stands for Doesn't Start Much 😂
Oh boy, bought a na 2.0 Eclipse for a daily when I had a Foxbody. Guy at the parts store give me a hard time when I kept showing up in the fox body to buy parts for the eclipse in winter. Still love those dsms and 4G63s ❤💯
lol that is funny. I have owned 20 fox's over the years and have one currently with a 2JZ. Love my fox bodies.
@headgames That's awesome, the Fox is such a good chassis. The shop was MoFoCo in Milwaukee they did odd import/VW stuff. I had a 351W in my fox so I would be buying weird Ford truck stuff to make things work, etc. Mitsubishi as a daily, that's smart. My father tells me that he thinks Mitsubishi is the Japanese Ford. He's a Porsche tech so to my young self it was the final word lol 😆. In the end the Fox was a ripper, the Eclipse led to a decent Talon Tsi. But, it always seems you wrench much more than race. Labor of love, thanks for the great videos. Merry Christmas 🎁
Good info
Can you do comparison on the 6 bolt head vs the 7 bolt head?
we can do that in the future!
nice work. will bring u my evo8 head soon for a build
When it comes to the exhaust the gases are still expanding. The reason not to gasket match is that the step prevents reversion. You absolutely cannot think about the exhaust in the same manner as the intake.
Great video
Nice work Dave.
I really like your porting and I agree about the exhaust gasket port match.
Merry Christmas to you and your family.. 🙏
Thanks buddy! Merry Christmas to you and your family too!
I know you say that there’s no airflow to be gained from touching/enlarging port openings, however I’ve seen some road race engine builders raise the roof of the opening of both intake and exhaust which continues all the way into the port roof on Nissan VK56 built by Kelly Racing for V8 Supercar making 640hp at 7500 redline Destroked to 5.0 liter per the rules. Also see Hartley racing engines with a 4.0 Destroked version of the same engine making over 500hp at 10,000 rpm for their version of dirt track racing carbureted. Both engines run a 10:1 compression ratio per their series rules. Specifically on the VK56 if you check out the SAE white paper it shows how Nissan lowered both intake and exhaust ports to create more low end torque for truck use versus the VK45 that was designed for higher rev range power. Hartley also done extensive intake and exhaust port flange mods on their Toyota 1GZ V12 engines to have them make insane figures naturally aspirated, 250-400 hp over stock Toyota figures. Maybe on a turbo engine it’s not warranted but naturally aspirated inlet mods***not gasket matching 😅😅*** may produce gains.
Raising the port to get a better approach angle is pretty common.
Check out this ford 300 6 cylinder that was built for drag racing back in the day. It has a cylinder head made from 3 sections boss heads epoxied together, and it has raised ports.
ruclips.net/video/JqjhyBKa4pI/видео.htmlsi=UshVzcXnFIoI_bGH
@ that’s a beast!!! some extreme port work there, stuff I’ve never imagined.
I can't really speak about NA or the VK but we have made 2500whp on the VQ without taking anything out to a gasket. Many people do it, but it is all theory. When you buy, you are always buying the theory of whomever is doing it. I have never seen it work, and have always seen it lose torque so I would never do it.
Was that a billet block or factory casting?@@headgames
@ one of these days a set of VK heads are gonna show up to your shop for a valve job and flow test with both intake and exhaust flanges slightly enlarged at the top to decrease the port angle***not out to a gasket/gasket match***. Going to put one in a 240sx when I get the other 2 cars ahead of it done. (I hate LS swaps, it’s the lazy way to do things). The engines are cheap enough at the moment to buy more than one so I’ll have an untouched head for comparison. Can hardly wait.
Love what you do, highly professional job, very informative, confidence inspiring for non-pro like myself. Thank you and keep posting please!
thanks! Glad you are getting something out of our efforts!
Similar to SRT 4 exhaust but the middle flint need a lot work.
The curve of the short turn is big. Almost half inch.
Still waiting for a BMW N54 head. I want to port my N54 head, coat the pistons, valves, ports and combustion chamber. Curious to how much power can be increased by porting a turbo head.
depends on how much power you are trying to make if it would help or hurt by porting it.
Need to see a sr20ve head vs k series and 4b11 comparison
Merry christmas to you and the @HeadGames team.
What did it flow before and after?
we don't share those numbers.
Numbers are literally everything in this industry, that's goofy. Almost all top-tier race head porters post a photo of the bench numbers right after flowing, I do not understand hiding that at all. Half the guys tell you localized velocity numbers if you ask. I don't buy heads without flow numbers, what are you hiding? Merry christmas
@@johnbean2596 I have never seen numbers for many of the heads we do from anyone. Sure, some share but it is usually a peak flow number at some absurd lift that nobody is going to use anyway. And, there is ways to manipulate the flow test or even just share fictitious flow numbers! I have also never seen a single shop offer velocity maps for their ports, nor do I see the general public knowing how to read that. If we started racing flow benches I would be concerned with flow numbers and making port big enough to win those flow bench races but until then those will be in-house data points. If that turns some people off, I am okay with that. I am not adding to the confusion for our customers to decipher and figure out what they need. That is why they are coming to us in the first place. We have set world records in every genre we have entered (except LS), and continue to be regarded in the industry as one of the best without giving something out that really don't mean much to the customer.
@@headgames That's very respectable thanks for the answer. I understand flow bench manipulation well, that's why people mention the fixture size, lengths, pipes or not, etc etc. You have videos on it!! That's why there's "industry standards" so to speak. The records speak for themselves regardless.
I'm really surprised you don't tape/protect the head surface. Thanks for the video and Merry Christmas
Have you ever been approached about doing any motorcycle cylinder heads?
Porting Videos a good for Meditation 😃
do you sell the burrs online? any smaller versions?
yes, check them out at www.headgamesmotorworks.com
I want to see how they get rid of the water passage!!
Same method as any other aluminum cylinder head. It gets tig welded until there's enough material built up to surface it flush.
@ryankosciesza5295 here is a 2JZ we did ruclips.net/video/m9ywFWdbUZs/видео.htmlfeature=shared
Ahoj Headgames. Mi zákazníci si přejí rozšíření kanálu na straně vstupu hlavně kolem vodítka ventilů a také chtějí aby měl tvar trychtýře začátek kanálu na průřez sacího potrubí a před vodítkem na požadovaný průměr.Vyfukova část jako sací. U vodítka rozšíření střed kanálu požadavek zakaznika a výstup do výfuku téměř na velikost těsnění.Mate super videa a rád se dívám i na měření průtoku. Krásné svátky a zdraví do nového roku.👍😁
i see in recent videos you made slight changes to the divider by extending the divider on the intake and making the peak on the exhaust more pronounce than smoothened. can you shed some light on that?
When you do the flow test on the 2g cylinder head can you make a overlay between all the ones tested before?
Considering this is for a really high hp drag setup what would be done differently for say half that power and in a street car application? Less material removed etc?
so true on the "gasket" porting lol Thanks for the education!
very welcome!
Red demon??
red demon is a 1st gen head
🇦🇬
⭐️⭐️⭐️⭐️⭐️.
🙇🏾♂️
There using 1G exhaust gasket on 2G thats y. 1G vs 2G big port vs smaller port. 1G top end or 2G velocity so not cave man move on DSM or 6 bilt or 7 bolt. I would just use a 2G head from head games and be done best of both worlds.
the intake port is different from 1g to 2G but the exhaust ports are basically the same from gen 1 to evo 9