Cylinder Head Porting Gets Flow Tested! Actual Gains VTEC Honda K24
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- เผยแพร่เมื่อ 6 ก.พ. 2025
- Whether you want to use your Honda K24 cylinder head or go with a K20, Advanced Cylinder Heads machine shop in Winter Park, Florida can create a custom port with their Rottler 5-Axis CNC and flow bench test the freshly ported cylinder head to see the actual gains the head makes.
Chapters:
0:00 Hunt for Power Starts
1:00 Advanced Cylinder Heads
2:00 Cylinder Head Porting Begins
3:34 Flow Test
5:56 CFM Results
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Disclaimer: We are not professional automotive mechanics. Our videos are intended for entertainment purposes only. You work on your own car at your own risk. We are not responsible for damage to your vehicle, property, personal injury and/or death.
Its crazy how good K series head flow out of the box. A lot of your favorite JDM heads from the 90s flow under 250cfm even with heavy port jobs.
Great episode this week. It’s nice to see how everything is done behind the scene. Can’t wait for next week’s episode!!
I’m happy to hear you enjoyed it! Please share the episode if you will. The behind the scenes is super cool and it was such a learning experience being there. Next weeks episode is the short block machine work and crank balancing! It’s a good one
From D series to this is going to be terrifying! I love it! Good luck!
I totally agree lol! It’ll be baby steps getting familiar with this power. Not going to go 10/10ths on my first outlap but I am so looking forward to feeling this thing and learning to drive with it
Best video ever on the k24 head ….undeniable
MAN!!....THAT'S 1 AWESOME ENGINE!!!!
Impressive. Awesome there's no loss of low-lift flow.
Man. Loving the content. I track a k20a2 94 integra here in socal. Stock motor and trans, just a nice tune with hondata. But you are giving me inspiration to build it a bit for a little extra kick. I'm sure it'll be nuts when you're done! Keep it up.
I really appreciate your feedback and sticking around to watch this build process! Your project sounds fun man. SoCal, so does that mean you go to Willow Springs or Laguna? I’ve never been out there so forgive me if those places are no where near you lol. I can imagine your car could be a blast to drive at either track
@@RefineMovement yah we frequent streets of willow and chuckwalla a lot. I have yet togoto laguna seca.. someday
What a great video Bro you motive me I need that machine shop inf my head was taking to machine shop and for some reason it's leaking so I prefer to take a too this pro shop
Yes!!!!!!!!!!!!!!!!!!!!!!! Thank you thank you!
So freakin sick!!!
It was such a cool experience to be there as the cylinder head was being ported out!
@@RefineMovementso damn cool Robbie, I'm jealous!
Are they able to tell you what the optimal valvetrain spec setup would be to get the most usuable hp/tq out of this job? I have so many questions!!! Just gonna have to follow in your footsteps and build a 2.4 with them as well:) ecstatic for this build series, ty for your service in documenting the journey. Happy for you, from one EG owner to another🤙
Man I sure appreciate your feedback. Thank you for coming along with me! Yes, Advanced Cylinder Heads gave their recommendations for the valvetrain to best suite my goals. To give a bit more insight my goal is to have more power than a stock K24 but keeping it in a range that retains the K24 reliability within reason, to be used for 30+ minute track day sessions at a time, 3-5 sessions on a typical track day.
Feel free to DM me on Instagram @refine_movement more of your questions and I will do my best to answer them. I hope you are enjoying your EG project as well! For sure, more info on my build is coming in the following weeks on this channel.
Yes another video let’s gooooo
I wonder how much you can improve a standard Blacktop or Red Top SR20DET head????
what does it cost to p&p a cyl head anyways?
I’m sure pricing is going to be different depending on your cylinder head and different at each machine shop depending on where you live. My recommendation is to call a place near you
I’m a Honda owner myself and I’m glad you are going k swap… good for u guy. I’m also a Master barber I should give you a haircut and a shave on the house at my barbershop 💈.. you need a good hot towel shave guy. I’m in Florida too
Can I get the factory rods from you
It will flow more if the inside surface is like golf ball little hole.
Do 4b11 head
Depending on cam, that's an easy 280whp, with 200wtq. Maybe 300 on e85.
That’s what’s up!
You’ll see cams and cylinder head valvetrain rebuild coming up in a few episodes.
Camera moments kept make me
🎉🎉🎉
What's the cr going to look like? judging by the dome on those pistons, 11.5-12:1? I'm a b series guy, so those look like 11.5 cr pistons for a b series lol
That’s fun to speculate based on the dome hah! Close enough, but the Wiseco pistons I got are 12.8:1. I appreciate your feedback and watching the video
@RefineMovement that's pretty crazy considering that my 85mmx89mm gsr is going to have about 12.7:1 cr with a gsr head. My supertech 12.7:1 pistons have a dome similar to the oem b16b ctr pistons. I never realized how different piston/combustion chamber geometry was going to be like between b series and k series.
In your case, you're compressing 85mm of piston into a 81mm head.(which by itself raises compression) With a ctr dome you might actually be higher than 12.7:1 @bryanlarrea2867
The jdm K24a already comes at 11-11.5 :1 with a flat piston, so any amount of positive dome is going to have high impact on compression.
Is the plan to go 250 na ?
You can do 260 NA with stock ports just cams, bolt ons
Plan is for sure to stay N/A. Power wise we’ll see
That's a 280-300whp build in the making. If he runs e85 and willing to allow the tuner to push it there.
There not much space in hp numbers u keep saying mild and reliable but either or 240-260hp , if your staying all motor is going to be reliable regardless, spent the money an time getting a “mild “port power difference might not be significant than to some one not getting ported at all making 240hp
240 to 260 would be great. I think I understand your statement in that you are saying why spend the time and money on a port to potentially only make 20 more hp. The answer is because I’m having fun with this project. It’s something I wanted to spend the time and money on. This is all a learning process for me and I’ve never had anything ported. Porting shouldn’t help the reliability, no, but I like the idea of the engine working even more efficiently than stock.
@@RefineMovement power is in the head! personally i think its a no brainer (pun intended). great video and info.