Honda K24 rbb head porting by SRDmotorsports
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- čas přidán 26. 01. 2022
- Here we are porting an rbb casting head that came off a k24 engine we also discuss porting efficiency and "why" this "why" that on alot of thinks including rbb vs prb casting and all
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#honda civic si
#Honda K24 rbb porting
#SRDmotorsports
#Porting
#Honda K24 rbb head porting
#Headworks
#All motor
#Rurex h3
#H3 autoworks
#drag race
#civic type r
#hondata
#WTAC
#world time attack
#Kpro
Borg warner turbo
Drag cartel
Gt35
K20a
Pte
acura
acura integra
honda civic type r
ivtec
k20a
k20a2
k20z3
k24a
world time attack challenge
jdm
honda integra
k24 swap
k24a2
vtec kicked in
k20z1
vtec sound
k24 rbb - Auta a dopravní prostředky
I think what most stock port turbo guys miss is that although they improve charge density with their turbo set ups, the improvement for air speed and flow is left out when they stay with the stock ports.
yes and an engine is an engine no matter n/a or turbo
and when ports like cams can affect the graph shape? it matters as much as the turbine capability no diff when checking a "compressor" map to pick n choose a turbine.
sure there is "traction control"
but how is it if 1-2-3rd gear traction control percentage is up that it seems like u are running a weak engine? result? slower times
Wow parang bago lang bili after mo linisin. Super clean. Good job. 👍👍👍😊
thanks!!! actually tuwang tuwa ako sa "finish" texture i think big help using our own made lube
50% ethyl alcohol and 50% Joy (dishwashing soap) gets free cleaning too
This dudes commentary is f@#£in great lol
Maaan if that’s no sarcasm? I appreciate that! Lol atleast the sense of humor or quirks are sensed by someone lol
Plus…I guess it shows I was a kid growing up watching History Channel and NatGeo hence the commentary is… well commentarily 😂🤣😂
@@SRDmotorsports no sarcasm genuinely made me laugh 🤘
@@nickthelebo love it man! We gotta thank NatGeo and when the hippos get the gazelle on the Serengeti 😂
Love this and looks beautiful. I have maybe oddest question but if you have a opinion would be appreciated but if not thats cool. If one likes the K24/K20 series but always wished the exhaust porting was different for sound reasons, caring about power but not as much as sound, would something like this potentially make a good compromise? Studied engine sound for awhile and found engine like K20 have too much gutted directly aft individual the ports (good for emission and purpose of layout, fine for power but) generally for sound smoother or tighter transition from 2-1 with less extreme expansion then K20 has should sound cleaner. Thinking custom port possibly with slightly enlarged valves could be a answer but i;ve never worked on K series. Just for general street hotrodding purposes, figure point of entry may be a bit less too?
Any thoughts?
That makes sense actually and even in power Endyn with their new casting Kseries head years ago did notice when they ported “smaller” the bare casting it did surprise them on the flow aspect…maybe just maybe it would have sounded different too as you stated cuz it was a smaller exhaust port
Thanks for sharing this nice how to technical video. Gave you the 10th like. :) Do you plan to do also some V6 engines? I mean any videos about a V6? Thanks my friend.
thanks for the comment man
actually ive only done once a v8 as it isnt common here even v6 but i like it alot and hope soon
because honda has v6 on the new stuff now and mitsubishi since the 90s has their v6
ofcourse also nissan skyline :)
@@SRDmotorsports The one in the Legend was also nice. :) I remember it. From the 90s. :)
RDJ is da man 🔥
definitely man!!! we were both college rugrats when we met and were always H3autoworks ftw and somethings never change me and him always yank each other's chain
RDJ always makulit,mapang asar lol but definitely always always a good guy
@@SRDmotorsports can't blame him being grumpy with his replies back then.. dude is bombarded with the same ass questions hahaha
@@mikodelacruz im pretty sure until now hence he needs to develop a ruder persona lol i know i would
Just picking your brain, which would you choose for a daily driver/weekend circuit rig?
Stock K24 with a well ported head and valve job, VTC gear, a very good header and intake setup that's tuned
or
Built 85x87.4 b-series with s2 pro2 cams, decent cast pistons, well-ported head and valve job, good header and intake and tune.
hard hard question... id choose stock k24 ported head for its massive torque and all...
the 85x87.2 wil have significant torque but incomparable due to displacement... then we make sure we run r888 tires or ar1 to have "some grip" while k24....
so with those factored in? more expensive K24 and more spin is why sometimes i suggest 85x87.4
more usable realistic on the road power
more built/karga so morefun for the owner at nearly lesser cost
sigh see how hard it is to choose?
but for the "wow" factor on locals if u are after "wowing" boys and lodi then K it is 🤣
@@SRDmotorsports hahaha, hard to choose right? That's why I also asked you, haha! 🍻
We're old and there's no more time or appeal to wow other people, I'd be lucky just to have enough time for myself, hahaha!
It's just disappointing that this "flex" mentality is what it's all about for many of the young ones. Insert those touting their thrice overpriced original wheels but have unknown brand tires 😂 and they like putting too much stickers on their cars these days
@@findtherightbeat definitely! i agree and great you mentioned that... locally our "flex mentality" syndrome and i agree wtf
I noticed the speed with your carbide bit is very low which can help with the bit skipping and causing issues. I like your finished work but a Dyno before and after the porting would be awesome. The k series heads flow "around" 300 cfm stock so they aren't really strangled for most of the off the shelf camshafts for a na build. Sure a well ported head will make more power but why not prove a stock vs ported head Dyno.
Oh definitely agree on that man…
And dayum! Good observation 🤣 I use a 220v Makita downturned via a 110v transformer, without it it bounces like heck
@@SRDmotorsports I use a 1/4" grinder with a voltage regulator allowing me to dial in the speed but it's all 120volt. Keel posting your work it's awesome content.
@@ericloki3188 the speed control/regulator has been something if wanted to try as I learned that Larry/Endyn used to run one back then so I was like “great idea”
Which I’m sure u def enjoy it too!
And also u are right on the Ks flowing real good but as stated on the video I was pinpointing some locals here that brag about it but run 4 bars boost? Ofcourse they keep it hush hush that they melt injector tips? 🤣 hence the example was the H3 ported Bseries 2liter that still holds the record here and makes as much as 1,137whp with less boost…
I think on the p2j video I did show what customers in Austria did which is cool
They slapped on a z6 head by us and gained 90whp same boost on the dyno
But since it started to run out of injectors they redynoed third time with more boost and did hold the 1mile record back then on Austria ftw!
@@SRDmotorsports I agree with you a local shop in orange county just does a really simple 5 minute pocket port job with their turbo b series builds. I'm going to be porting their heads that have already been dynoed to show there is so much room for improvement. Even if it's only 20whp on a turbo build anything to get the turbo to spool faster or to increase velocity throughout the entire rpm band would make a huge difference with drag or road race application. All these guys bragging about high boost stock port have no idea what they're missing.
Here in the USA most people want the PRB head on the k24 block for the reasons you mentioned. I was wondering if this basic port job you did would allow the RBB head to exceed PRB performance on an all motor k24 setup?
I think it could, I’ve not yet done enough r&d to tell but a couple of World time attack competitors in Au we did a couple of RBB for their track cars and they stuck to that configuration. For a couple of years before going turbo and switching to PRB
I guess some would say the PrB will give more top end? And street with DIC
Ok makes sense but then also the RBB could prolly do the same and get good top end with a DC3.2 or something cam and still be streetable
@@SRDmotorsports I read somewhere that Honda cast the PRB head with a finer grain sand to improve performance without doing hand porting like with the B series Type R heads. Being that the RBB ports are cast so rough im sure porting would bring performance close if not exceed the stock PRB head. Especially if you use the 2006-2008 k24a2 cylinder head that has the larger intake valves and more aggressive vtec cam lobe.
From the looks of it RBB and PRB looks like they are both cast better than the B but so small diff it is miniscule but I can see K fans saying it to talk down on Bseries which is more common 😂🤣
Please a price on k24 head ported and freight to texas, US
oh let me check DHL estimates
@@SRDmotorsports k
Hi! I have another question.. Do you have values of stock RBB-2 head port? I want to test my ported head, but I haven’t got stock values for comparison.. Thank you in advance for your answer!!
oh no :( i dont have stock values but i will see if i can ask some head porting friends from the U.S or Australia
@@SRDmotorsports oh man, I will be really appreciate!!
@@enjoytheride_cz no worries :) atleast you can test better after
hey out of curiosity, would isopropyl alcohol work instead of ethyl alcohol?
Yes yes sir… when I run out and make a new mix sometimes it’s isopropyl whichever is handy hehe
I have an Element looking for more torque with a lift and tires. Is your info on here?
yeah that should work too, depending on the engine bay space a decent CAI (with length) could do wonders too
great video! would you advise bigger and/or flat valves for a p08 head? thanks
even excellent question :)
the flat faced valves i favor as in general it raises about 0.3 in static compression
resurfacing the head during headworks from us
its free of choice from 0.005" removed or 0.040" (1mm) removed and 0.030" resurfaced is 0.75mm that generally bumps 0.7-0.8 in static comp
so altogether thats 0.8 + 0.3 = 1.1
a stock 9.3:1 will become 10.4:1 if it was a jdm p08 d15b
@@SRDmotorsports Wow that's some good knowledge. Thank you! I'm not sure if the p29 pistons would like that along with a stage 2 cam.. hopefully wont need to run race fuel lol
@@vince.r nah thats fine ive ran p29 + slight shave head on crower stage2 blaze handled it
-its easy like cake for Jeremie to tune with his experience
@@SRDmotorsports Sorry, don't mean to jack this thread. Do you clip your water pump fins for d-series builds?
@@findtherightbeat no need to do that actually
cavitation happens on a crv/d16 ratio pump only at 9,100rpm
on b16/ITR ratio its 9,800
so its beyond the d16 powerband i mean let alone revving it to 8.5k seems nonesense
when even on crower stage 3 cam the peak power is 7,500rpm
whp goes up but the rpm powerband remains the same
Did you ever tested ported vs unported head on the dyno? Same setup, just only ported head? :)
Havnt tried it yet I mean too many cost factors… I mean sure someone should do it if they did it and it didn’t make as much power or they expected more
But example a World Time Attack competitor will not test a stock head when they’re already in the top 10 ?
but I see what u are saying a lot of times the cost is big if we don’t own the dyno :(
I have an upcoming video of a sohc turbo they had a dyno stock head then redynoed with ported head ftw
@@SRDmotorsports I understand, but I just wanted to know that. I will make this test till 1-2 months, I hope.. Same setup, only ported head will be changed.. :)
Will see what gain can ported head make on my k24 dc2...
@@enjoytheride_cz oh doing it right = u might surprise urself in how good the power is! :) good luck and have fun!
Hi whats.the diff between k24a and k24rbb? Tia
Not entirely sure on the small details but one comes from an Accord and the other from a CRV and it’s more on year model that there was a tiny difference in cams but nobody really bothers by it as they go straight to building it hehe
Where is your shop located?
We are located in the Philippines
Stupid question... Why did you painted a head around the channels?
You mean the color blue? sorry i never explained.. but u think in Episode 3 of the b20vtec series i showed some idea but never explained (sorry)
Painting it blue... lets me see if i went too big in the beginibg and also to stay the same on "all four" but most important after the portwork it lets me put an intake gasket on the ports? to align it... this lets me align the same intake gasket to the manifold
and that lets me port match the intake manifold to this head :)
i hope that was your question
@@SRDmotorsports yes I mean this colour around intake and also exhaust channel🙂
@@enjoytheride_cz my previous comment is on the intake
on exhaust i choose red ink because exhaust 🤣
but i didnt show the boring part but the paint lets u put the exhaust gasket? u can scribe a line on the red painted area to see if u havnt gotten close to the edge
on exhaust for me i always want the exhaust or header to be bigger than the port so no reversion and the paint helps be sure and all :)
I hope that makes sense? and this isnt a stupid question it is a nice question and thank you!
@@SRDmotorsports thank you very much for your answer! It helps..:) I did port on my skunk2 ultra street and now RBB-2 head.
@@enjoytheride_cz oh nice is it finished? u can cut ur own intake gasket to get the rbb pattern head traced to the ultra street :) i hope i answered your question earlier and good job on the RBB :)
Ralph, is this you?
yeah shhh lol its SRD lol
@@SRDmotorsports awesome work man 👌
@@KarlKristianMoeng thaanks i try man :) i try to reach ur level of care at work man i try
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