You should compare a regular gen2 5.0 head vs ported gen2 5.0 head vs Voodoo. A lot of people debate on ported gen2 5.0 vs Voodoo. Lots of mustang guys would watch that video!
I did Gen 1 with HeadGames CNC vs Voodoo yesterday. Would probably drop end of January. I am going to do all of the gen's vs the voodoo and why I would choose one head over the other in certain applications.
I wonder what will be the flow of the Porsche Gt3 RS cylinder head to be a 4.0L NA making 518HP meaning that each cylinder head can flow 260HP putting in another perspective a 2.0L making 260HP in NA form, it has to be a marvel.
@@nogigrapplerS54 had the highest torque per liter of any production engines, later Porsche and now new Corvette are a little bit better. And some Ferrari engine.
@@nogigrappler I miss old high revving engines like this. new cars are so boring and samey. esp for honda i mean the civic si and type r have nothing special going for them anymore no more100hp per litre screamers. the engine in this vid where in cars like the 06-11 civic si ( amazing car somehow ) and rsx type s the last cars of their kind, no joke. Would love to drive a e46 m3 one day only driven e36 328i which are slow and somehow made less hp than my prelude and k series 😶🌫
@@mikellewis2346still a decent comparison. The k series can make power, my daily is a 440hp supercharged k series swapped CB7 but even with 440hp, the car isn't as fast as a 440hp rwd car at the track. Now from a 30 roll, my car eats, but if you are trying to build a dependable, consistent drag car, starting with anything honda is a financially a stupid move. Now using the k series in a rwd platform with a th400 or stick cuts cost in half as you aren't tied to that junkass awd swap or sticking with the fwd bullshit.
@@damianlindsey6177 ya rwd is always gonna be faster for drag racing. I love my Hondas for daily strait driving with a little fun on back roads an hiway racing. Lol I was looking at a supercharger for my si, what brand you running and has it bin reliable?
Good idea. Please compare the VQ35HR heads to whatever else sounds like some good competition. Would like to see how it stacks up against the voodoo as well. 🔥🤝
The RBC-1 came on the K20Z3. It's kinda hilarious to see what it takes to beat a stock Honda casting. A decade newer, fully CNC machined, designed to fit a much larger bore... and the difference isn't all that extreme.
@@KZ-se4ik Pretty incredible is a massive understatement. It's literally unbeatable (at this bore diameter), outside of extremely high-end brands, like Porsche and Ferrari. CNC Honda heads are in the 380+ CFM range.
Being a life-long Nissan guy (yes, we DO exist...lol) and current owner of both a 370Z AND a GT-R, I'd LOVE to see the VR against the VQ37VHR!! Tossing you a sub so I don't miss it. 👍
I thought the K20 was better than the 24? Everyone always swaps the K20 head on the K24 block for the best combo seems like. Maybe I’m wrong. Be cool to see a K20A or Z3 head vs the 24
VQ35HR, I’ve read that they outflow a lot of ported heads. The VQ37VHR has almost the same port geometry as the HR with a different divider and they’ve been known to make 370 plus wheel with cam upgrades and bolt on parts. The VK56 is starting to gain traction but that head needs to be ported to raise both intake and exhaust roofs to reverse the truck modifications that Nissan made to create more torque for low RPM grunt. Guys in Australia and New Zealand make more than a hundred horsepower per liter with them on stock compression fly cut pistons using big cams and port work.
Flow should be flow per cylinder bore size. K20 head is supposed to supply a 2.0 liter engine. Voodoo head is supposed to supply a 2.6 liter engine bank.
Yup. K20A from an RSX-S will outflow any K24 head. But, would it outflow the voodoo? I doubt it. Still, it's a 20 year old design and it still holds up! Nice!
The RSP head from the 2007-2011 Civic Type R (FD2, FN2) is the best of those, but the K24 with the headifold from 2012-2015 supposedly flows the best on the intake side of any of these heads (however, obviously, the exhaust side is terrible for the outside cylinders).
@ I’m not sure about the FN here in Asia is called the Civic type R euro. that is because it is not a JDM engine. It is built in Europe. The FD type r is built here in Japan, it is the most powerful stock K 20 a. The second is the DC 5 type R. The versions we have here in Japan. The ports are actually cleaned up from the factory. I don’t know the flow rate, but I know they are very desirable for the people in the western world.
First of all, very many thanks for your channel, all the work it takes and all the information you freely share - you do, we just watch. My question/comment is: How do these heads compare in terms of specific flow per unit area of cylinder bore? Obviously, the greater the gross flow, the greater the potential for power, all other things being equal, but should the question not be which is the most efficient design? A big block chevy head will always flow more than 50cc lawnmower one. Also, when quoting potential power outputs of these engines, figures for specific power per litre, per cylinder, per lb of boost/@ a specific boost pressure would, perhaps, be a more 'apples to apples' way of comparing relative cylinder head performance, other mitigating factors not withstanding. Simply put, the voodoo has twice as many (and bigger) cylinders as the Honda!
How does a flowbench work? I see a really tall pressure gauge on the side. Does it calculate the volume flow rate using the pressure? Does the flowbench account for different port area?
Good video thanks for your time. Seems that comparing cylinder heads that are designed for different capacity cylinders, there needs to be a baseline of flow versus capacity as well to give a benchmark. The next test to show my point voodoo head against a factory performance big block. Not sure if there are any modern big block performance oe heads anymore.
@@rickyvwt Yes, everyone is capable of counting the amount of cylinders that one cylinder head covers. Yes, we're obviously talking about the type of engine that the cylinder heads are from, not the amount of literal cylinders that an individual cylinder head covers.
I understood what you meant I find it interesting what head goes on top of what type of engine block. I think you have to take in consideration the actual engines usage and when one engine has a larger bore and displacement ultimate airflow is not the most important thing the engineers are thinking about for its intended usage. Air pumps and n their nuances awesome 💯 😎 s***
I would really like to see a Mercedes M156 head('06-'11 AMG 63 models) tested - 6.2l DOHC V8, 102.2mm bore, 40mm intake/33mm exhaust, gotta have some absolute monster flow potential in those things.
I’m curious how the F 22C head flows compared to the K 24 because one day the motor in my S 2000 will die and I have to decide to either k swap it or spend the cash for a new F series block. Plus, I think it’d be a cool video.
@headgamesmotorworks nice to see the comparison. Unfortunately picked the wrong k series head to flow. Top dog would be type r head rsp casting. But an affordable option that flow near same is ppa casting from a crv. Both should flow in the 340+ range. Voodoo head is very impressive though.
Hey Dave do you have any Nissan Vk56 Vk50 or Vk45 heads? Any Toyota 3UZ? Any Toyota-Yamaha 2UR or 3UR heads? Would to see A Aventador head or A Ferrari F140 series head
@ ahh damn. One day I’ll try to get you guys some. I heard the Murcialago heads were absolutely terrible a while ago, but it’s surprising to hear the Aventador heads are terrible too. I Wonder about the Revalto heads. Somebody send Dave some Toyota and Nissan heads!!! And an Atlas 4200 head until I can lol.
barra 6cylinder head . [up to 2500hp as drag motor] Cleveland 4v 351 head supposed to do 250 out of the box [2 valve 55mm in/ 40mm] CHI clevor 3v supposed to flow 330cfm [2 valve up to 750hp na 351ci ] Volvo whiteblock 5cyl v60r
No clue where you'd get one, but one of the new 9k RPM porsche GT motors would be cool. And maybe Mike at StanceWorks would loan you a head from his Ferrari V12?
The last year's of the sr were really good. However Nissan quit developing in early 2000s. Honda had more time in the game. I'm a Nissan guy with a 200hp ve non portted
Can you please do the Nissan VQ37VHR head? That head is on every 370Z and G37. If you don’t have one, I’d be willing to supply a pair for testing since I’m on Long Island.
Id be curious to see how some of the Italian, German and British stack up. I'd imagine Ferrari, Lamborghini, BMW, ect. all make some high flowing cylinder heads.
It’s insane that you are comparing a stock k head to a stock yet ported head, just shows how well engineered the k series head that’s it’s up against a factory ported head.
These are both production heads. What's crazy about it? No one stoped Honda from porting their heads. Btw, one could argue the voodoo head design started life as a moderate hp mustang head and was transformed by Ford into what is. The K head, correct me if I'm wrong, was designed from the start to be a HP/L hero.
Considering the bore is much larger and the valves are much larger, not sure how it can be a surprise that the voodoo head flows so much better. Just put them side by side and use your eyes and you can come to the conclusion without any testing.
I mean the k series heads are good for what they were made for and that was a compromise between economy and power on a smaller engine. Remember that honda's vtec engines have to keep port velocity up enough at low rpm for good low rpm economy and still flow enough to move air at 7000 rpm with a radically different camshaft profile than at low rpm. 2 liters versus 2.6 liters on the voodoo engine. The voodoo was made with power only in mind and was designed over a decade later.
Love the format. This VS That I'd like to see you come back to this with ported k20 vs voodoo. Since you mentioned Hemi, why not a Hemi shoot out. Regular ass 5.7 eagle vs 6.4 vs Hellcat?
I'd love to see what the ford 3.7 flows in comparison to the 3.5 ecoboost head. The 3.7 makes impressive power for an N/A v6 so i would assume that it flows quite reasonably.
Wow, great channel. I just found this. Could you do a Roadrunner head vs a Voodoo head? Roadrunner found in the 12/13 Boss 302 came with OEM CNC ported GEN1 Coyote heads, and people were spinning Roadrunners to 8,200+ RPM's with nothing more a tune, so they obviously move air. I don't think Ford has any GEN3/GEN4 Coyote based OEM CNC ported heads, but maybe I'm wrong? Maybe you could you do a video comparing the best heads to maximize the GEN3 5.7L LS1/LS6 engines with their 3.898" bores? Obviously all that costs $ to buy the supposed vest heads, but that was always a big discussion back in my LS1 days. Also do you know how well those aftermarket Elebrock heads for the GEN5 LT engines flow compared to OEM GEN5 SBC? The OEM heads have an odd exhaust port the kind of wraps around the exhaust ports, and the Elebrock heads use a traditional straight exhaust port, but the OEM GEN5 heads do move air, and can make a lot of power, so IDK if the aftermarket Elebrock head would be worth the upgrade.
Toyota 2ZZ and 4AGE Black Top would be cool to see. The 3SGE Black Top as well, would love to see some more high revving Toyota heads get tested since they seem to not get much love. I would guess that the 3SGE would bring some serious numbers considering how well those motors performed in their time. 3SGTE brought Toyota way more championship wins then any JZ ever did. 2GR-FE V6 seems to have also got some attention with a few making over 400WHP NA
Hi Dave, I'm glad you've enabled automatic translation and I've been able to hear you in Spanish from the AI, hahaha. In these tests, it would be good to know what speed the air has in the ports, because it is known that with a larger port diameter and a larger valve diameter, much more flow will enter, but you can have a very high flow with a very low air speed. What do you think about this? I'd love to hear from you. Regards Goyo
I'm pretty sure if it's just raw flow numbers, the larger motor has an easier time flowing air. But if it's CFM per liter of displacement, the Yamaha R1 will be at the pants off of everything.
You're comparing a cnc ported head from factory with a non cnc head. 4 piston provide a rbb head port job that would make it flow as good as a k20 from a rsx type S
Not surprised since it has more displacement per cylinder, it's machined from factory which could make a difference in the overall price of the head and therefore machining the k24 wouldn't be too far fetched in my opinion for a fair game, unless the cost difference is like less than 10%, I mean overall they are both 4cyl cylinder heads, so cost wise they should cost roughly the same if the voodoo wasn't machined from factory...
Just here to remind folks you can't think of power potential in terms of "flow" in a boosted engine the same way you do for NA engines. Remember your compressor is a DENSITY multiplier. To make double the power - you don't need twice the flow. You need the SAME flow @ twice the density. It doesn't matter what the volumetric flow rate is. What matters is MASS flow rate.
These flow rates do not take density (or more appropriately, pressure) into the equation. Boost changes flow characteristics. Altitude/ambient pressure effects aerodynamics when making considerations for aircraft design.
@@GroovesAndLands The name of the game is still getting as much air in the cylinder as possible. A head that flows better NA is going to flow better under boost. It will require less boost to flow the same mass and therefore make the same horsepower. Less boost, less heat, better efficiency. Just as you can double power by doubling the density or doubling the flow, you can double the power by having 1.4x the flow AND 1.4x the density.
@@GroovesAndLands you're welcome, I'll keep thinking about flow the exact same way though, because flow responds the same whether NA or boosted. If it didn't, you would see companies developing boosted head flow benches.
If you got heads from the BMW S65 4.0L/4.4L that would be a good comparison. Another would be GT500/GT 5.4/5.8 heads. It would be cool to see the improvements in flow vs the Voodoo heads. One more would be heads from the Lexus 2UR-GSE. But I hoghly doubt anyone who owns a Lexus RC-F is doung any modifications to those engines so you probably have not seen those heads or engine anyway. LOL!
Bro that's while 😮 also I got a b16 a head the I want to port it how much u charge for that I took it to machine shop and they say they port it but found out with the guy who assemble the wasn't 😢
What about velocity/total port energy and discharge coefficient? As for what heads *I* want to see, well, I'm interested in V6s, so LV1/LV3, J series heads (32a2 and any second gen J35), 2GR heads from Toyota, and the 3.7L Cyclone heads from Ford.... Screw it, throw a GM Atlas head up on there, too.
1299 panigale will probably be the best mass produced head. Would be cool to see a cbr1000rr(sc82)vs a 81mm bore ported b series. I think max flow will be more a question of which engine has the largest bore instead a comparison of 86mm bore would be interesting as there are a lot of engines with that bore.
I believe it started in 2005 production. It's a 3.5 they come in Camrys Avalon's and Lexus vehicles. The port design is much different from your typical Toyota cylinder head. They advertise 270 hp stock. Great content! Keep it up!
From what i understand, the 05-06 Ford GT heads are the best heads Ford ever made. I'd be interested to know for sure. Especially since the 4000 hp billet mmr 5.8l coyote has voodoo heads.
The 05-06 GT heads were the pinnacle of modular DOHC head technology at the time. Since then however, the R&D in the Coyote based heads (both Coyote and Voodoo) make them superior to the mod motor DOHC stuff (wether GT or GT500). Still, I concur that a comparison would be interesting to see.
You should compare a regular gen2 5.0 head vs ported gen2 5.0 head vs Voodoo. A lot of people debate on ported gen2 5.0 vs Voodoo. Lots of mustang guys would watch that video!
Bump
Came here to say this too
I did Gen 1 with HeadGames CNC vs Voodoo yesterday. Would probably drop end of January. I am going to do all of the gen's vs the voodoo and why I would choose one head over the other in certain applications.
@@headgames I have a Gen2 TT, this would be an awesome info, so in a future it will be the easy pick.
@@headgamesI can’t wait for it
I wonder what will be the flow of the Porsche Gt3 RS cylinder head to be a 4.0L NA making 518HP meaning that each cylinder head can flow 260HP putting in another perspective a 2.0L making 260HP in NA form, it has to be a marvel.
@@CJ5EVOLUTION doubt any of those things are coming in here but maybe one day!
@@headgameswhat about m97 heads? What’s the magic sauce with those guys?
Are they a bottle neck or did Porsche size em right?
I came to comment this. I bet its up there!
i would love to see that
Maybe the guys at Dundon motorsports have a head they would lend you? For science…
BMW s54 please And Honda f20c - The only competitors imho
S54 is the obvious choice. Both K24 and S54 produce 100+WHP per liter with quality bolt ons. 250-260 WTQ is also very common on bolt on 3.2 S54s.
Yep, doesn't f-series head also have bigger valves than K-series? 36 vs. 35? I remember seeing over 300 CFM at 28" 20 years ago on that head.
@@nogigrapplerS54 had the highest torque per liter of any production engines, later Porsche and now new Corvette are a little bit better. And some Ferrari engine.
That would be interesting
@@nogigrappler I miss old high revving engines like this. new cars are so boring and samey. esp for honda i mean the civic si and type r have nothing special going for them anymore no more100hp per litre screamers. the engine in this vid where in cars like the 06-11 civic si ( amazing car somehow ) and rsx type s the last cars of their kind, no joke. Would love to drive a e46 m3 one day only driven e36 328i which are slow and somehow made less hp than my prelude and k series 😶🌫
Rbc head is from a 2006-2011 civic SI, the k24 head would be RBB
Yes your 100% rught. I have a 8th gen 07 si with k24a right now in it. An have the og k20z3 being rebuilt. Both amazing engines.
@@mikellewis2346still a decent comparison. The k series can make power, my daily is a 440hp supercharged k series swapped CB7 but even with 440hp, the car isn't as fast as a 440hp rwd car at the track. Now from a 30 roll, my car eats, but if you are trying to build a dependable, consistent drag car, starting with anything honda is a financially a stupid move. Now using the k series in a rwd platform with a th400 or stick cuts cost in half as you aren't tied to that junkass awd swap or sticking with the fwd bullshit.
@@damianlindsey6177 ya rwd is always gonna be faster for drag racing. I love my Hondas for daily strait driving with a little fun on back roads an hiway racing. Lol I was looking at a supercharger for my si, what brand you running and has it bin reliable?
It would be hard and expensive but the type r k20 engine would be a more fair comparison i also think those are ported.
@@repingers9777the type r head (k series) aren’t ported. The only “type r” head came ported was the b18c not k series
Good idea. Please compare the VQ35HR heads to whatever else sounds like some good competition. Would like to see how it stacks up against the voodoo as well. 🔥🤝
The RBC-1 came on the K20Z3.
It's kinda hilarious to see what it takes to beat a stock Honda casting. A decade newer, fully CNC machined, designed to fit a much larger bore... and the difference isn't all that extreme.
Yep. Given the smaller bore and valves, Honda is pretty incredible
@@KZ-se4ik Pretty incredible is a massive understatement. It's literally unbeatable (at this bore diameter), outside of extremely high-end brands, like Porsche and Ferrari.
CNC Honda heads are in the 380+ CFM range.
just superb development from 90's F1 tech!
@@michaelflynt6788 Honda has been in F1 since the '60s.
They need to get their hands on an RSP casting K20 head, or AT LEAST a PPA K24A1 head, or PRB-1 type S, those all waffle stomp the RBC casting
Loved that Pod Dave!!!
Being a life-long Nissan guy (yes, we DO exist...lol) and current owner of both a 370Z AND a GT-R, I'd LOVE to see the VR against the VQ37VHR!! Tossing you a sub so I don't miss it. 👍
Great video
I thought the K20 was better than the 24? Everyone always swaps the K20 head on the K24 block for the best combo seems like. Maybe I’m wrong. Be cool to see a K20A or Z3 head vs the 24
VQ35HR, I’ve read that they outflow a lot of ported heads. The VQ37VHR has almost the same port geometry as the HR with a different divider and they’ve been known to make 370 plus wheel with cam upgrades and bolt on parts. The VK56 is starting to gain traction but that head needs to be ported to raise both intake and exhaust roofs to reverse the truck modifications that Nissan made to create more torque for low RPM grunt. Guys in Australia and New Zealand make more than a hundred horsepower per liter with them on stock compression fly cut pistons using big cams and port work.
@@stucbr1100 the HR is a bad hombre
Great video. Just subbed to your channel. Look forward to the other Gen coyote head comparisons. Coyote motors and variants are king!
Flow should be flow per cylinder bore size.
K20 head is supposed to supply a 2.0 liter engine. Voodoo head is supposed to supply a 2.6 liter engine bank.
irrelevent
@@craig3916 Bore size is irrelevant? You're out of your mind.
Ive heard those Audi 5 cylinders flow phenomenally well stock, id love to see that if you guys have one!
Would like to see what K 20A head wood flow, from a DC5 Integra type R. I thought that was the best flowing K series said, but I might be wrong.
You're right.
@@Trash-horse самая лучшая продувка civic fn2 и fd2 с головкой RSP, все уже меряли)
Yup. K20A from an RSX-S will outflow any K24 head. But, would it outflow the voodoo? I doubt it. Still, it's a 20 year old design and it still holds up! Nice!
The RSP head from the 2007-2011 Civic Type R (FD2, FN2) is the best of those, but the K24 with the headifold from 2012-2015 supposedly flows the best on the intake side of any of these heads (however, obviously, the exhaust side is terrible for the outside cylinders).
@ I’m not sure about the FN here in Asia is called the Civic type R euro. that is because it is not a JDM engine. It is built in Europe. The FD type r is built here in Japan, it is the most powerful stock K 20 a. The second is the DC 5 type R. The versions we have here in Japan. The ports are actually cleaned up from the factory. I don’t know the flow rate, but I know they are very desirable for the people in the western world.
Yeah i'd like to see 6.4/6.2 hemi head vs the voodoo. I think they usually flow 330-340cfm intake stock. Ported ones get close to 400
100%
First of all, very many thanks for your channel, all the work it takes and all the information you freely share - you do, we just watch.
My question/comment is: How do these heads compare in terms of specific flow per unit area of cylinder bore? Obviously, the greater the gross flow, the greater the potential for power, all other things being equal, but should the question not be which is the most efficient design? A big block chevy head will always flow more than 50cc lawnmower one.
Also, when quoting potential power outputs of these engines, figures for specific power per litre, per cylinder, per lb of boost/@ a specific boost pressure would, perhaps, be a more 'apples to apples' way of comparing relative cylinder head performance, other mitigating factors not withstanding. Simply put, the voodoo has twice as many (and bigger) cylinders as the Honda!
Can you give Cd through the lift range so we can see how efficient each is flowing?
How does a flowbench work?
I see a really tall pressure gauge on the side. Does it calculate the volume flow rate using the pressure?
Does the flowbench account for different port area?
I would love for you to Compare the 2JZ head and the GM Atlas 4200.
Good video thanks for your time. Seems that comparing cylinder heads that are designed for different capacity cylinders, there needs to be a baseline of flow versus capacity as well to give a benchmark. The next test to show my point voodoo head against a factory performance big block. Not sure if there are any modern big block performance oe heads anymore.
it is very hard to beat a 4 valve Cyl head, but out of curiosity do you have a Gen 3 Hemi around more to compare V8's vs V8's
@@CJ5EVOLUTION I have the hellcat and a gen 3
Do you realize they are both 4 cylinders heads... right?(not flowing engine blocks here)
@@rickyvwtis the Gen 3 not a 2 valve per cylinder?
@@rickyvwt Yes, everyone is capable of counting the amount of cylinders that one cylinder head covers. Yes, we're obviously talking about the type of engine that the cylinder heads are from, not the amount of literal cylinders that an individual cylinder head covers.
I understood what you meant I find it interesting what head goes on top of what type of engine block. I think you have to take in consideration the actual engines usage and when one engine has a larger bore and displacement ultimate airflow is not the most important thing the engineers are thinking about for its intended usage. Air pumps and n their nuances awesome 💯 😎 s***
have you compared a k20 vs k24 head? I know the k20 heads flow better but I'm curious about how much better
I would really like to see a Mercedes M156 head('06-'11 AMG 63 models) tested - 6.2l DOHC V8, 102.2mm bore, 40mm intake/33mm exhaust, gotta have some absolute monster flow potential in those things.
I’m curious how the F 22C head flows compared to the K 24 because one day the motor in my S 2000 will die and I have to decide to either k swap it or spend the cash for a new F series block. Plus, I think it’d be a cool video.
Definitely want to see the F20C or F22C1 head tested
@headgamesmotorworks nice to see the comparison. Unfortunately picked the wrong k series head to flow. Top dog would be type r head rsp casting. But an affordable option that flow near same is ppa casting from a crv. Both should flow in the 340+ range. Voodoo head is very impressive though.
Hey Dave do you have any Nissan Vk56 Vk50 or Vk45 heads? Any Toyota 3UZ? Any Toyota-Yamaha 2UR or 3UR heads? Would to see A Aventador head or A Ferrari F140 series head
This ☝️
@@mikelmarion we don’t have any of those. The adventador head is a total pile of steaming doodoo. The huracan head is soooo much nicer.
@ ahh damn. One day I’ll try to get you guys some. I heard the Murcialago heads were absolutely terrible a while ago, but it’s surprising to hear the Aventador heads are terrible too. I
Wonder about the Revalto heads. Somebody send Dave some Toyota and Nissan heads!!! And an Atlas 4200 head until I can lol.
barra 6cylinder head . [up to 2500hp as drag motor]
Cleveland 4v 351 head supposed to do 250 out of the box [2 valve 55mm in/ 40mm]
CHI clevor 3v supposed to flow 330cfm [2 valve up to 750hp na 351ci ]
Volvo whiteblock 5cyl v60r
No clue where you'd get one, but one of the new 9k RPM porsche GT motors would be cool.
And maybe Mike at StanceWorks would loan you a head from his Ferrari V12?
lol I think that would be a big ask. I see a Lamborghini huracan vs performante head battle in the future though
@headgames he has spare heads that are damaged "beyond repair" so it might not be as hard as you think.
Do an s65 or s85 bmw head. I’m curious what they flow since they’re factory ported supposedly.
What abou k20 vs sr20vet?
2zz vs 4age blacktop
The last year's of the sr were really good. However Nissan quit developing in early 2000s. Honda had more time in the game. I'm a Nissan guy with a 200hp ve non portted
Wonder if you could get your hands on a head or heads from a Ferrari 458 Italia... Hmmm
Hey he probably could lol there is a guy who stuffed a 458 engine in a wrx sti
That is a K20 head not K24. The RBC head comes on the 06-11 Honda Civic SI K20z3.
What does a stock coyote gen 3 head compare to the voodoo?
Would be interesting to see the single port k series head like the k24z7 how it compares
RBC is K20Z3 from 06-11 civic SI, RBB is from K24A2
Sealing and casting quality are also very crucial towards a quality head.
Street,racing, drag, endurance applications all demands durability .
Can you please do the Nissan VQ37VHR head? That head is on every 370Z and G37. If you don’t have one, I’d be willing to supply a pair for testing since I’m on Long Island.
There's a good head on those shoulders, flows real well.
Supposedly the SR20ve head flows great. Also I thought the K20 from the first RSX was the best flowing out of the K series.
we don't work on the SR heads
Лучшая головка это k20z4 rsp civic type r fd2 fn2)
I would like to see the flow test on a 2GRFE, VR38 and the 2ARFE. Compare those and see which one is better.
Thank you for your knowledge and videos
Im wondering what the new lt7 gm head will do
Id be curious to see how some of the Italian, German and British stack up. I'd imagine Ferrari, Lamborghini, BMW, ect. all make some high flowing cylinder heads.
If those two heads were scaled to the same size do you think the voodoo would have the edge?
It’s insane that you are comparing a stock k head to a stock yet ported head, just shows how well engineered the k series head that’s it’s up against a factory ported head.
These are both production heads. What's crazy about it? No one stoped Honda from porting their heads.
Btw, one could argue the voodoo head design started life as a moderate hp mustang head and was transformed by Ford into what is. The K head, correct me if I'm wrong, was designed from the start to be a HP/L hero.
Considering the bore is much larger and the valves are much larger, not sure how it can be a surprise that the voodoo head flows so much better. Just put them side by side and use your eyes and you can come to the conclusion without any testing.
How about an early like 1990 dsm 4g63 head... those things were absolutely massive on the intake side
I mean the k series heads are good for what they were made for and that was a compromise between economy and power on a smaller engine. Remember that honda's vtec engines have to keep port velocity up enough at low rpm for good low rpm economy and still flow enough to move air at 7000 rpm with a radically different camshaft profile than at low rpm. 2 liters versus 2.6 liters on the voodoo engine. The voodoo was made with power only in mind and was designed over a decade later.
Love the format. This VS That
I'd like to see you come back to this with ported k20 vs voodoo.
Since you mentioned Hemi, why not a Hemi shoot out. Regular ass 5.7 eagle vs 6.4 vs Hellcat?
I'd love to see what the ford 3.7 flows in comparison to the 3.5 ecoboost head. The 3.7 makes impressive power for an N/A v6 so i would assume that it flows quite reasonably.
The Mitsubishi 6G75 MIVEC head flows extremely well. I think it might flow better than the VQ head. Definitely worth a try.
Wow, great channel. I just found this.
Could you do a Roadrunner head vs a Voodoo head? Roadrunner found in the 12/13 Boss 302 came with OEM CNC ported GEN1 Coyote heads, and people were spinning Roadrunners to 8,200+ RPM's with nothing more a tune, so they obviously move air. I don't think Ford has any GEN3/GEN4 Coyote based OEM CNC ported heads, but maybe I'm wrong?
Maybe you could you do a video comparing the best heads to maximize the GEN3 5.7L LS1/LS6 engines with their 3.898" bores? Obviously all that costs $ to buy the supposed vest heads, but that was always a big discussion back in my LS1 days. Also do you know how well those aftermarket Elebrock heads for the GEN5 LT engines flow compared to OEM GEN5 SBC? The OEM heads have an odd exhaust port the kind of wraps around the exhaust ports, and the Elebrock heads use a traditional straight exhaust port, but the OEM GEN5 heads do move air, and can make a lot of power, so IDK if the aftermarket Elebrock head would be worth the upgrade.
Don't the factory Hemi eagle heads flow like 300-330 on the intake from the factory?
Toyota 2ZZ and 4AGE Black Top would be cool to see. The 3SGE Black Top as well, would love to see some more high revving Toyota heads get tested since they seem to not get much love. I would guess that the 3SGE would bring some serious numbers considering how well those motors performed in their time. 3SGTE brought Toyota way more championship wins then any JZ ever did. 2GR-FE V6 seems to have also got some attention with a few making over 400WHP NA
*_最高のものは: K20Z3, K20A2。 ではない K24. K20 は voodooよりはるかに優れている。_*
Idk if for sure love see how some Toyota would compare. Don’t think the technology is there but it be fun to see.
Toyota vs BMW?
@ I feel like Toyota/yamaha 4 cylinder been out of the picture lately. Let’s put some to the test.
@ wonder how the atlas 4.2 sits with the Toyota/bmw
Hi Dave, I'm glad you've enabled automatic translation and I've been able to hear you in Spanish from the AI, hahaha.
In these tests, it would be good to know what speed the air has in the ports, because it is known that with a larger port diameter and a larger valve diameter, much more flow will enter, but you can have a very high flow with a very low air speed.
What do you think about this? I'd love to hear from you.
Regards
Goyo
Just curious how the srt4 head compares to 4g head
Voodoo vs HeadGames CNC ported Coyote head next!
@@alexmontealegre4377 I did this test yesterday. Gen 1 coyote with HeadGames cnc port vs Voodoo. Video will be out in February or sooner!
I'm pretty sure if it's just raw flow numbers, the larger motor has an easier time flowing air. But if it's CFM per liter of displacement, the Yamaha R1 will be at the pants off of everything.
You're comparing a cnc ported head from factory with a non cnc head. 4 piston provide a rbb head port job that would make it flow as good as a k20 from a rsx type S
@@Givelasagna yeah I mentioned that fact.
@headgames sorry about that I must have missed that. Great video
@@Givelasagna thanks!
Dave have you done the V8 Toyota UR platform? ISF 5.0 or Tundra 5.7?
I'd love to see a DAZA - not because I think it'll win but just to see the numbers.
SR20ve p11 or p12, would be interesting to compare to the k24.
people keep mentioning the SR head. Must be a good one. We don't work on them though.
F20C1(S2000) max intake lift .460 (had to convert from 10" lift to 28" lift)
87 @ .100
174 @ .200
241 @ .300
288 @ .400
311 @ .500
You got a spec mx5 head like mzr NC 06-15 or the 15-25 skyactive engine head ND ... Compare it to stock f23a1 head of 98-02
Not surprised since it has more displacement per cylinder, it's machined from factory which could make a difference in the overall price of the head and therefore machining the k24 wouldn't be too far fetched in my opinion for a fair game, unless the cost difference is like less than 10%, I mean overall they are both 4cyl cylinder heads, so cost wise they should cost roughly the same if the voodoo wasn't machined from factory...
vq37 vs 3.6 vr6 please
I have a na 3.6 vr6 making 360whp+ on pump gas. Would love to see how it compares to a vq or s54 head
2 Valve AFR LS3 with relocated intake valve, Chevy SB2 or later, Late Cleveland, Late Hemi
What about the lt head?
Respect!! Never saw this style of content! Sweet bro
i think the ported k series head vs the voodoo would be better. i know its stock for stock but make the playing fields even
06 Ford GT heads legendary
I would like to see a k20 rsp cylinder head vs the voodoo as the rsp is way better than a rbb
It would be interesting to see a comparison with Rb26
It needs regular oil flow to be classified as a working oem head
@@MrMystolmfao
200$ head holds it ground very well. We can be happy to have such a bad ass power plants to play with now days.
Get some toyota 2grfe cylinder heads. Id love to see that up against the k or voodoo
You need to normalize it to bore diameter? If you aren't considering bore size a 16 liter semi head would win for sure.
Just here to remind folks you can't think of power potential in terms of "flow" in a boosted engine the same way you do for NA engines. Remember your compressor is a DENSITY multiplier. To make double the power - you don't need twice the flow. You need the SAME flow @ twice the density.
It doesn't matter what the volumetric flow rate is. What matters is MASS flow rate.
These flow rates do not take density (or more appropriately, pressure) into the equation. Boost changes flow characteristics. Altitude/ambient pressure effects aerodynamics when making considerations for aircraft design.
@@randoawesomemix9501 You prove my point: What matters is MASS flow rate, not volume flow rate - which is what the standard flowbench measures.
@@GroovesAndLands The name of the game is still getting as much air in the cylinder as possible. A head that flows better NA is going to flow better under boost. It will require less boost to flow the same mass and therefore make the same horsepower. Less boost, less heat, better efficiency. Just as you can double power by doubling the density or doubling the flow, you can double the power by having 1.4x the flow AND 1.4x the density.
@@jaredshaffer3901 Yes, thank you for expounding on the premise that what matters is MASS flow rate.
@@GroovesAndLands you're welcome, I'll keep thinking about flow the exact same way though, because flow responds the same whether NA or boosted. If it didn't, you would see companies developing boosted head flow benches.
It might not be possible for a while, but the new GM LT5 head is probably better…would like to see that.
If you got heads from the BMW S65 4.0L/4.4L that would be a good comparison. Another would be GT500/GT 5.4/5.8 heads. It would be cool to see the improvements in flow vs the Voodoo heads.
One more would be heads from the Lexus 2UR-GSE. But I hoghly doubt anyone who owns a Lexus RC-F is doung any modifications to those engines so you probably have not seen those heads or engine anyway. LOL!
What about SRT-4 head
Bro that's while 😮 also I got a b16 a head the I want to port it how much u charge for that I took it to machine shop and they say they port it but found out with the guy who assemble the wasn't 😢
Like to see the voodoo vs LT6.
dave please do ej25 vs fa24 head test
FA24T from the WRX vs FA24D from the BRZ, also the best EJ heads arent even from a 2.5, they're the Spec C big ports (T20)
Why are you comparing a v8 race head to a factory 4 cylinder head?
@@Trash-horse it’s what the people in the comments of the podcast were wanting!
What about velocity/total port energy and discharge coefficient? As for what heads *I* want to see, well, I'm interested in V6s, so LV1/LV3, J series heads (32a2 and any second gen J35), 2GR heads from Toyota, and the 3.7L Cyclone heads from Ford.... Screw it, throw a GM Atlas head up on there, too.
The HR 350z heads are what we used on the IMSA 370z's. Those should be the best of the bunch from that generation other than the VR38 stuff.
Thinking a better comparison would be to scale for engine displacement per cylinder, to come up with flow / cc of cylinder displacement.
Bore size is really what matters. Larger bore means more area for larger valves.
@@PistonAvatarGuyflow per bore size, I think it is called Alpha K
Nope.
The s2000 f20/f22c head flowed more then the k .
1299 panigale will probably be the best mass produced head. Would be cool to see a cbr1000rr(sc82)vs a 81mm bore ported b series. I think max flow will be more a question of which engine has the largest bore instead a comparison of 86mm bore would be interesting as there are a lot of engines with that bore.
Check j series header style and single port
I would like to see Toyota's 2GR
what has that engine?
I believe it started in 2005 production. It's a 3.5 they come in Camrys Avalon's and Lexus vehicles. The port design is much different from your typical Toyota cylinder head. They advertise 270 hp stock.
Great content! Keep it up!
Can you do ford 6.2 hurricane Sohc heads
Livernois motorsports sells a ported one flowing 348 cfm
From what i understand, the 05-06 Ford GT heads are the best heads Ford ever made. I'd be interested to know for sure. Especially since the 4000 hp billet mmr 5.8l coyote has voodoo heads.
The 05-06 GT heads were the pinnacle of modular DOHC head technology at the time. Since then however, the R&D in the Coyote based heads (both Coyote and Voodoo) make them superior to the mod motor DOHC stuff (wether GT or GT500). Still, I concur that a comparison would be interesting to see.
The OG Cobra B heads were the fastest heads bar none until the coyote heads came out. They ran 6.14 @ 236mph+ way back in 2005.
For an apples to apples comparison you should run a cnc port and polished k series head.
He's not trying to compare apples to apples. The question was the best "factory" flowing. Both heads tested were factory
The sr20ve heads arent bad but they dont outflow the k20 head. I was able to make 290whp out of a slightly ported vvl head na on e85
K20 vs 3SGE Beams PLEASE!