Aluminum requires more heat to get a puddle going and since pulse is primarily used to help control heat it would be counter intuitive. They were probably using a high frequency 100+hz to help force that AC current into the puddle.
The AC, and more to the point the offset and waveform, is more to clean and improve the weld pool. The heat is really down to the voltage and pulse/duty cycle.
Scadieee I would also really like a video about that. I've seen some variable length intake runners also that are very interesting. And good point about n/a or boosted applications, I was curious about that too as I'm sure many others are.
There are going to be individual variations between engines, but Jenvey have a good guideline in their FAQs - second section - www.jenvey.co.uk/support/faqs/ You, and any others reading, may like to check out their full web site - I have some of their products and been very happy with them - use the "shop on-line" option to the top right of their home page.
Awesome video Andre, thanks! I do have a question, obviously in this ever evolving market lots of different companies are coming out with off the shelf products aswell as custom products that would work for this application, I myself am also building a SR20VET motor currently. With price out of the picture was there any underlying reason as to why Plazmaman was chosen over other brands such as Hypertune or Mazworx just to name a couple? Thanks
How did the 74mm throttle body work out? I see you've made a newer video talking to a guy from plazaman that seemed to indicate 60-70mm would be the max size they would recommend for a 2 liter 4 cylinder. In this video: "When Bigger ISN'T Better: Plenums AKA Intake Manifolds"
Hey gents, two quick questions, is there going to be a full build series on the 350Z, specifically the SR20VET, and 2nd question, why didn't you go 4G63 if you wanted a 4cyl? Thanks.
Liking the use of "O" rings for the flange seal - but as that will increase the metal-to-metal heat transfer from the head to the manifold, are you planning on using a thermal barrier between the manifold and head - some water/laser cut phenolic plastic, maybe? Be interested to see how you get on with integrating the Bosch throttle body as that is on my wish-list - not just for the idle speed benefits, the ability of tailoring low rpm throttle openings for best torque (or to limit it for traction control if fast enough operation?) but for the ability to limit top speed using electronic control - this would be excellent for events, such as Targa, where there is a strongly enforced maximum speed allowed; some American 'open road' events, like the Nevada Silver Dollar (if still run) have enforced maximums for different classes also, for safety reasons.
Question, lets say I want a plenum, yet they are expensive AF. If I buy a plenum made for another 4 cylinder car and cut off and weld on a inlet flange for my 4 cylinder car, could it work?
Do you think for a low-mid hp build like 300-400hp it's worth it to buy an aftermarket inlet manifold or port and polish the inlet manifold and run the largest throttle body I can?
No the ROI is very poor at that power level. If you want more air, use a small shot of nitrous oxide. If you factor in the kit and several refills it still would be cheaper to do that than get a manifold such as this for the tiny turbocharger you're running.
I think it comes up in a Colin Wilshire interview. Basically it comes down to injector control, or lack of, and fuel demands. Technology is improving but in the past having good idle fuel control as well as large and accurate fuel flow at WOT were two things you wouldn't get from a single injector. In some drag applications where idle and low loads don't matter its simply to feed the engine copious amounts of methanol etc, which requires much more volume than gasoline. Very broad and nutshellish reply, I'll try find some links for you too - Taz
The danger is usually a backfire that ignites the charge in the plenum - maybe some form of burst, or spring loaded, plate would be in order with higher boost levels?
Not bad on the welds, look like some of my first welds ever done, so room for improvement is there, mine now look so perfect , god himself asked me my technique.
Same same, should probably add intake in there too in order to help with people searching for both. English is fun like that, 5 words and as many different spellings for the same things most of the time - Taz.
CNC milling looks fantastic, but you can take your 3D printed manifold to a foundry and have it made as a cast aluminum piece for far less money. From there you can bead blast it, sand it, and polish it.
Plenty of shops would be able to make you one, the question is what shop can make you a GOOD one 😎 If you haven't asked them already Plazmaman might be a good start - Taz.
Is an aluminium inlet manifold really need, do to the higher boost pressure, or could you build an even lighter one out of plastic, like many oem's do?
It could definitely be done. A piece of 2" schedule 40 pvc pipe has a burst pressure rating of something crazy like 800psi and a working pressure rating of 200psi. And that's just the white pipe under your sink.
@@tobiaswessel1771 for sure. I'm sure an intake manifold could be 3d printed using the right filament or whatever they call it that would handle 200psi.
blindabinda123 keep in mind though, that rating is at 72F and engine bay temperatures get quite a lot hotter than that. It could definitely be done, but the OEMs use Glass fiber reinforced high temperature Nylon (PA 6.6), Id wager a 3D printed manifold would be out of the realm of possibility for an application like this, the filaments aren’t high temperature plastics, and the printing process makes parts weaker than unreinforced injection molded parts due to the layering process.
Why does that seem slow? Companies like Texas Speed own several Haas CNC machines to do their heads. The tuner/import market is SMALL very small compared to the V8 market in the US alone, as only 2-4% of the cars are ever modified and even fewer are taken to the level of needing a custom intake manifold. Hence ONE CNC machine for Plazman.
Yes the further you go down the rabbit hole for power and everything you need to support it all the exponentially more expensive it gets. In this case though you get what you pay for which is all anyone really wants 😎 - Taz.
![[TECH TALK] What do you know about engine bearings? | King Engine Bearings](http://i.ytimg.com/vi/Zr-gGOa2Jnk/mqdefault.jpg)
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Want Andre's t-shirt? It's in the wash, but you can get its clone here: shop.hpacademy.com/
whoever is doing that welding is a badass! he's not even using the pulse option to make those gorgeous wells 😋
Aluminum requires more heat to get a puddle going and since pulse is primarily used to help control heat it would be counter intuitive. They were probably using a high frequency 100+hz to help force that AC current into the puddle.
PANTYEATR1 Agreed👍
The AC, and more to the point the offset and waveform, is more to clean and improve the weld pool. The heat is really down to the voltage and pulse/duty cycle.
Flowing a lot more E A R
the quality of this piece belongs in a museum
Keen to see this all come together and running
Didn't even know a service like this existed!
P11 head hell yeah! I have one of those engines in my garage next to a bare s15 block, waiting for some attention
Really lovely work. Would like one for my Mercedes M119. Think it’s would make a big difference to power and throttle response
Those welds would make a robot jealous
Curious to know about intake runner length. Would you guys ever do an in-depth video or what’s best for what application (n/a vs Forced induction)
Scadieee I would also really like a video about that. I've seen some variable length intake runners also that are very interesting. And good point about n/a or boosted applications, I was curious about that too as I'm sure many others are.
Would also be keen for a video like this. Would be nice to know what the benefits of a tapered throttle body are as well (n/a)
There are going to be individual variations between engines, but Jenvey have a good guideline in their FAQs - second section - www.jenvey.co.uk/support/faqs/
You, and any others reading, may like to check out their full web site - I have some of their products and been very happy with them - use the "shop on-line" option to the top right of their home page.
Awesome video Andre, thanks! I do have a question, obviously in this ever evolving market lots of different companies are coming out with off the shelf products aswell as custom products that would work for this application, I myself am also building a SR20VET motor currently. With price out of the picture was there any underlying reason as to why Plazmaman was chosen over other brands such as Hypertune or Mazworx just to name a couple? Thanks
Should also see the custom manifolds that cpc creates, end of the day they are all really high quality parts so it comes down to personal preference
Can't wait to buy mine
That is a beautiful intake.
How did the 74mm throttle body work out? I see you've made a newer video talking to a guy from plazaman that seemed to indicate 60-70mm would be the max size they would recommend for a 2 liter 4 cylinder. In this video: "When Bigger ISN'T Better: Plenums AKA Intake Manifolds"
Hey gents, two quick questions, is there going to be a full build series on the 350Z, specifically the SR20VET, and 2nd question, why didn't you go 4G63 if you wanted a 4cyl?
Thanks.
Liking the use of "O" rings for the flange seal - but as that will increase the metal-to-metal heat transfer from the head to the manifold, are you planning on using a thermal barrier between the manifold and head - some water/laser cut phenolic plastic, maybe?
Be interested to see how you get on with integrating the Bosch throttle body as that is on my wish-list - not just for the idle speed benefits, the ability of tailoring low rpm throttle openings for best torque (or to limit it for traction control if fast enough operation?) but for the ability to limit top speed using electronic control - this would be excellent for events, such as Targa, where there is a strongly enforced maximum speed allowed; some American 'open road' events, like the Nevada Silver Dollar (if still run) have enforced maximums for different classes also, for safety reasons.
I have one of their intercoolers and I was thinking if those were hand welds that is some next level skill.
Question, lets say I want a plenum, yet they are expensive AF. If I buy a plenum made for another 4 cylinder car and cut off and weld on a inlet flange for my 4 cylinder car, could it work?
Have you ever worked with variable length intakes? I know Ferrari has them on some cars but they seem pretty rare.
Do you think for a low-mid hp build like 300-400hp it's worth it to buy an aftermarket inlet manifold or port and polish the inlet manifold and run the largest throttle body I can?
No the ROI is very poor at that power level. If you want more air, use a small shot of nitrous oxide. If you factor in the kit and several refills it still would be cheaper to do that than get a manifold such as this for the tiny turbocharger you're running.
How do they form the two halves of the plenum from sheet? Hydraulic press?
I'm also curious about that. But in that case wouldn't the compound curve at the back be thinner? He mentioned the consistent thickness.
Is there a video describing the reasoning and benefits of duel injectors per cylinder?
I think it comes up in a Colin Wilshire interview. Basically it comes down to injector control, or lack of, and fuel demands. Technology is improving but in the past having good idle fuel control as well as large and accurate fuel flow at WOT were two things you wouldn't get from a single injector. In some drag applications where idle and low loads don't matter its simply to feed the engine copious amounts of methanol etc, which requires much more volume than gasoline. Very broad and nutshellish reply, I'll try find some links for you too - Taz
@@hpa101 really appreciate the reply and that all makes a lot of sense. I'll have to try and find the video, thanks again :)
Thiz... bye-bye 'danger to the manifold' ;P
Any reason you chose to go SR20ve in the Z? Seems like a pretty weird swap and how come you went VE instead of a VET out of an xtrail
Weight distribution and as Taz said above class rules.
No amount of NOS would blow those welds on the intake...Danger to Manifold...
The danger is usually a backfire that ignites the charge in the plenum - maybe some form of burst, or spring loaded, plate would be in order with higher boost levels?
Two of the big ones might do it, you'll definitely fry the pistons rings though
Not bad on the welds, look like some of my first welds ever done, so room for improvement is there, mine now look so perfect , god himself asked me my technique.
Could plazmaman increase the length of the runners by an inch ?
Have a chat to them about what you need and they'll tell you what they can do. I can't speak for them 😎 - Taz.
Inlet manifold the same as intake manifold or are those two different parts/components?
Same same, should probably add intake in there too in order to help with people searching for both. English is fun like that, 5 words and as many different spellings for the same things most of the time - Taz.
Yes i love it i own 3 primera p10 sr20de and a det i would like a ve do
I am in the middle of designing a manifold for my engine. I hope that I can 3d print it because that would be way cheaper then having one CNC milled.
CNC milling looks fantastic, but you can take your 3D printed manifold to a foundry and have it made as a cast aluminum piece for far less money. From there you can bead blast it, sand it, and polish it.
@@joshuablair6120 I mean at that point if I could get the scrap aluminum I could probably cast it myself or try to.
Before I hit the shop and make one myself, anyone know if anyone makes custom intakes for z31 vg30e engines?
Plenty of shops would be able to make you one, the question is what shop can make you a GOOD one 😎
If you haven't asked them already Plazmaman might be a good start - Taz.
Shouldn't injector putted "far-rer" away from cylinder head, automize and mix with air better, thus increase power?
Gedas Alekveravičius further?
Hi there are you in the uk?
We're in New Zealand.
Plazmaman are in Australia.
BUT
Both of us have customers world wide 😎- Taz.
Is an aluminium inlet manifold really need, do to the higher boost pressure, or could you build an even lighter one out of plastic, like many oem's do?
It could definitely be done. A piece of 2" schedule 40 pvc pipe has a burst pressure rating of something crazy like 800psi and a working pressure rating of 200psi. And that's just the white pipe under your sink.
@@blindabinda1234 200psi does sound like more than enough, even for a crazy diesel build.
@@tobiaswessel1771 for sure. I'm sure an intake manifold could be 3d printed using the right filament or whatever they call it that would handle 200psi.
Im assuming that it would keep up with the engine bay temperature
blindabinda123 keep in mind though, that rating is at 72F and engine bay temperatures get quite a lot hotter than that. It could definitely be done, but the OEMs use Glass fiber reinforced high temperature Nylon (PA 6.6), Id wager a 3D printed manifold would be out of the realm of possibility for an application like this, the filaments aren’t high temperature plastics, and the printing process makes parts weaker than unreinforced injection molded parts due to the layering process.
What’s the purpose for dual fuel injectors?
So you don't run out of injectors on ethanol/methanol fuel.
7 hours seems very slow I'm very curious as to their feed rates and what tooling they're using
Why does that seem slow? Companies like Texas Speed own several Haas CNC machines to do their heads. The tuner/import market is SMALL very small compared to the V8 market in the US alone, as only 2-4% of the cars are ever modified and even fewer are taken to the level of needing a custom intake manifold. Hence ONE CNC machine for Plazman.
how does Hypertune compare to this
Nice
I need one for my car 😭😭 G6bA
Why not dual chamber manifold? Shouldn't g_force put boost to the rear piston? Im a bit drunk and 15YO, but I can think. Espiacially about CARS
We got a bad ass here!
@@sexyfacenation I respect women, i'm gut boi
Why post when your drunk?
The reason for dual chamber is not that...
why are you putting an sr20 in a 350z?
I'd also like to know
Class rules for endurance racing. We will miss the sound of the mighty VQ around here though 😩 - Taz.
Twin injectors 🤯
Steel can't choose between Skunk2 pro , skunk2 pro street , and skunk2 pro race ... or edelbrock XD
Either of those will work with Honda builds under 1,000 hp.
Your wallet content also Ends Here :) Wonder how much such custom manifold costs....
Yes the further you go down the rabbit hole for power and everything you need to support it all the exponentially more expensive it gets. In this case though you get what you pay for which is all anyone really wants 😎 - Taz.
@@hpa101 what is the benefits of custom inlet manifold in terms of power? & why not go itb?
@0:28 "ear"
He said "air"- you need to clean your "ears'. ;-)
Kiwi as, bro
Meh...nothing new or groundbreaking here, just a well polished video showing how it’s done.
Thanks :) - Taz.
i wish you were learner friendly..
Hey Joshua, can you expand on this? We think we are pretty learner friendly. But I'm keen to hear how we could improve. - Benn
great vid but your accent sounds like you are struggling to speak the words. lol.
I know they're a waste of money
Running our engine without any inlet manifold would not be possible, so we're happy with our investment =) - Taz.
Not a waste, define waste? If it's money you wouldn't spend but others would does not make it a waste.