Wait I'm confused. Didn't you order SS not Inconel? Either way, this is awesome. Cool project and I subbed.
@CouchBuilt6 ай бұрын
Inconel. The “order”was part of the demo to show what the typical buyer might choose. The manifold design reviewed is not the same as in the demo or checkout and you can see the manufacturer on the box is also different. Prices for the reviewed manifold are in the “i8 swap” column of the cost breakdown.
@802Garage6 ай бұрын
@@CouchBuilt Ah okay just confused me slightly and the colors in the pictures for the price comparison also made my brain think it was different. That's so cool!
@SuperLuckyCat76 ай бұрын
Likewise. Way impressive and some knowledge 'bout 3D printing is mega appreciated ❣
@donr626 ай бұрын
Thanks for posting actual prices and finished product quality. No one ever gives us that level of detail.
@CouchBuilt6 ай бұрын
I think the technology and price has finally reached a point where it can be a game changer to the garage builder or smaller fabrication shop looking to level up their builds. Nothing to hide or gatekeep. I wish it was at this point when I was in the fabrication game 10-20 years ago.
@donr626 ай бұрын
@@CouchBuiltagreed and only going to get cheaper going forward. Also CAD packages for enthusiasts like F360 and Solidworks for Makers edition will allow people to get right into this space.
@bondvagabond425 ай бұрын
I hate it when people get "cute" about price info. They either don't understand that people have pretty tight budgets, or they think it's some sort of genius sales scheme, when it really just makes us assume it's crazy expensive, lol.
@youtubasoarus5 ай бұрын
We are in an absolutely wild time for customization and home manufacturing. I'm amazed how attainable this sort of thing is now.
@ThoitPremium-bh8kb6 ай бұрын
Damn your fusion skills are awesome. Great how you explain how you built it.
@CouchBuilt6 ай бұрын
Glad you liked it. My skills have a ways to go, particularly on workflow. I’ve learned a ton on this project but amassed so much technical debt that after I committed to sending the print files out, I exported them all as STEP files to free up the design timeline. Let’s just say simple changes were orders of magnitude too long to process toward the end.
@aaronbuildsa5 ай бұрын
Came to say the same thing - I learnt a *ton* from just that section alone.. I struggled doing a similar modelling task (by struggled I mean I gave up and went back to beating round tube into square flanges like some kind of caveman), and now I know how easy it should have been..
@yatajoris28576 ай бұрын
Amazing to see you explain all of your techniques as you go. Also giving a perfect insight into costs, metal 3D printing is a great tool for custom stuff like this. Thanks for you video
@getahanddown5 ай бұрын
Not just a great tool but with some time refining your design it looks affordable and fast too!
@spartancrown5 ай бұрын
As someone who made more 13b/20b manifolds than most for a very long time. I’ve been saying for years now if I ever were to start producing them again this is the way to do it. I’ve lost years on my life doing exactly that on my belt sander. 😂
@justinguerrera83225 ай бұрын
Im amazed that anyone had a complaint about this video. The amount of knowledge and realization of available tech to a normal guy like myself was amazing. Please make another video like this. Maybe turbine or compressor housing.
@Jonny_transАй бұрын
You can use sample tubes with restrictors into small chambers with o2 sensors that get vented into your main downpipe. It will allow you to get perfect O2 readings without a need for specialty pre turbo sensors and a custom control system. You may even be able to use the bank to bank fuel corrections in your ECU The 2 1/8 inch holes bypassing exhaust won’t reduce spool up in a noticeable way. The sample tubes will allow you to mount the sensors in a easily serviceable or accessible spot
@DMSparky6 ай бұрын
I’m not kidding when I say you have one of the most interesting channels on KZbin right now. Looking forward to seeing your channel blow up.
@SettlingAbyss965 ай бұрын
Great video. I used 3D printing when I designed my upgraded replacement gearbox casing. If you have the skills to engineer and CAD your part, I think there are almost more reasons now to go that way than to buy an off the shelf part (especially if your platform isn’t as popular).
@SinfidelityMusic6 ай бұрын
Gotta love this new tech. That merge cost is mind blowing. Love it. Def gonna keep it in mind for a 3rotor build
@CouchBuilt6 ай бұрын
Not quite new tech, but newly affordable Id say.
@andrewd0814525 ай бұрын
Ive followed you on IG for a while now and have always loved seeing and been inspired by the projects you do. Randomly came across this video and recognised the manifold in the thumbnail, didnt know you made videos too haha. Loved seeing your Fusion workflow, Ive been using it for like 8 months now and still only really know the basics so it was nice to see exactly what tools I need to learn better to do this type of designs
@dh23605 ай бұрын
Very cool, like any new tecnology it will be interesting to see how they hold up to the stress of a running engine over a long period of time.
@PAPO19905 ай бұрын
3D metal printing has been around for a while, but being reserved for OEM's and unlimited budget, only if you were printing exotic metals like Titanium... however, I clicked the video because I had no clue 3D printing inconel was even possible, let alone accessible already :O
@E30Fred6 ай бұрын
Great video! The 15 minutes just flew by. I loved the other practical examples you gave so people could get an idea on what a larger volume print would cost, as well as what a smaller volume print like a merge collector would cost.
@CarlMagnusBorg6 ай бұрын
Great content and detail on the process. Feels very attainable for most hobbyists. Now I just need one more project car 👍
@jesselord27706 ай бұрын
This was great stuff. I’d love to watch more of your Fusion 360 work. If you keep posting, this is going to be a fantastic channel. Keep it up!
@colectivo_drift5 ай бұрын
This was a perfect video. I’ll be looking into using this process for my external wastegate, vband exhaust manifold for my 13b 240sx
@antbymcnair42976 ай бұрын
that is a great tool to know about. I am also swapping a motor into a car it wasn't meant for and need an intake solution. I am not sure if printing a whole intake is the solution, but some of the parts will be much easier to have printed rather than fabricated from tubing alone.
@ArtiRua6 ай бұрын
What a great video. Ive been trying to figure out how to convince a client he needs a printed manifold. This has all the answers!
@icey_b15625 ай бұрын
Crazy a home gamer can do this now. Seems like something that has been reserved for rocket engines at tech startups and major corporations.
@mattnsac5 ай бұрын
It has been reserved for tech startups with millions in capital backing. As he says, dont choose this option if there is an off the shelf option that you could make work, but I could see a lot of use cases for this in highly custom applications. If you have access to a CNC, ,you could build custom turbine and compressor housings and then post process/ cleanup the volutes to proper surface finish and clearances for well less than youd pay off the shelf. An aluminum GT355 compressor cover is over half the cost of a replacement.
@icey_b15625 ай бұрын
@@mattnsacDoesn’t mean you should. Machining or now 3D printing a part is almosr always more expensive than buying something off the shelf due to quantities of scale pricing. Kind of nutty it’s a consideration…
@mattnsac5 ай бұрын
@@icey_b1562 What Im saying is that there are SS turbine housings from Tial that cost a grand, you could print a V banded, SS housing to your specs so long as you could machine the interior dimensions to perfection and be within that price. For the compressor, you could make a custom anti surge housing or one with a specific outlet shape that would typically require welding for less than an off the shelf part. That still requires a CNC for the cleanup work. This stuff is definitely an option, especially in highly custom situations where budget isn't as much a consideration.
@karlkiernan68636 ай бұрын
It is great that you shared so much information as lots of people myself included wouldnt have looked at going this way due to the thought it was out of reach for a home garage project.
@Doomer170186 ай бұрын
Man awesome video, funny I just 3d scanned my e30 engine bay for the first time for some work just like this so this is invaluable!
@oompaloompa90005 ай бұрын
Bravo! The design and finish are fantastic. Thank you for making this video!
@knonfs5 ай бұрын
WOW, a whole new meaning to custom made, now I need to learn CAD :O
@Oborowatabinostk5 ай бұрын
13B-REW Swapped BMW!? 🔥🤘
@SoftCell786 ай бұрын
So a few recommendations. When drilling or tapping, I would rather use rigid taping to reduce mistakes or workmanship errors. When machining down the surface area, you should consider using a mill and measuring flatness. I saw when you placed the "finished" part on the flat surface, there was a lot of wobble and air gaps. It was off by well over 2 thousands. Simply recommendations since it appears you paid a tremendous amount for this part.
@CouchBuilt6 ай бұрын
Good insights, but bold of you to assume my bench is flat. There’s no gap with a straight edge.
@SoftCell786 ай бұрын
@@CouchBuilt also bold of you to think a belt sander can give you a flat surface
@travistucker73175 ай бұрын
This part is printed. Fixturing this thing up to (g84) tap it would negate much of the cost savings advantage that he started with. The beautiful thing about a part designed for use with gaskets is it doesn't need to be flat to any "close" callout. That surface would probably be good at +/- .02", maybe .03 depending on what gasket he goes with. I guess really i don't see the point of giving the guy a hard time. You don't get flatness within .002 with printed parts yet. The threads are just fine chased. I was impressed that he went with threads at all, instead of sending the model with undersized pilot holes. It's a race car, not a space clock. Tell the guy he made a great video and thank him for teaching people about this tech.
@telecomwiz20046 ай бұрын
This was so helpful! Thank you!
@cingkole78935 ай бұрын
17:40 Great Tip!!!
@acefighterpilot5 ай бұрын
Don't even want to imagine how expensive this would be for my VR6. It's cool that you can do this and hopefully the prices come down in a few years.
@CouchBuilt5 ай бұрын
In stainless probably around $1600-1800. In inconel, $6-8k
@david9291906 ай бұрын
The price of the SS manifold puts getting something like this made within the realm of my budget. I use onshape for CAD but seeing how Fusion360 handled the 3D sketching makes me want to give it a shot again.
@ovalwingnut5 ай бұрын
Really (really!) well eplained & documented. You R the "3D Printed Whisperer" Definetely SUB worthy.
@anidiotinaracingcar48746 ай бұрын
10:10 There are some surprising numbers. Like you save over 11% on the Titanium 2mm lightened manifold and less than 5% with the inconel one.
@CouchBuilt6 ай бұрын
One thing to keep in mind is that it’s an automated process and the prices shown are the lowest for a particular configuration. They might be through different vendors even though the material is the same. There might be limitations or ideal size thresholds for a particular manufacturers setup.
@knutbergan5 ай бұрын
Impressive work and beautiful result.
@jimf51606 ай бұрын
just a suggestion...a belt sander will not result in a flat surface and it may leak. I would suggest mounting it in a mill and fly cut it.
@CouchBuilt6 ай бұрын
I would argue your statement should be worded “may not”. If even pressure is applied you can get an impressively flat surface. If you’re wildly varying the angle of attack then you’ll end up with a banana. The purpose of this is to show the accessibility of a technology with post processing available to the average builder. Yes, milling would be more precise, but it’s not the only valid method. In a past life I built close to 1000 welded turbo manifolds with belt sanded flanges. Sealing was never a complaint. Wrench access to bolts was the usual gripe, but I’ll take that as an L with things I’ve learned over the years.
@beforebefore6 ай бұрын
Came here to make a similar comment... especially with such a large part and small belt width and high belt speed. As long as he checks the flatness on a true flat surface, and uses dye removal to prove flatness, it can be done... but is time consuming.
@CouchBuilt6 ай бұрын
Next video I’ll run a feeler gauge across this manifold and the intake manifold. That one was done the same way. Saying flat is like asking how long is a string. As long as an acceptable tolerance results, the method is moot.
@captainobvious91886 ай бұрын
It seems to be all about the details of how exactly it is done in my experience. The only conclusion I’ve reached is that results seem to vary wildly depending on the person who did it 😂
@CouchBuilt6 ай бұрын
110%
@Weekend_Garage5 ай бұрын
I'm glad I happened across this. I'm working on a project and I've already re-designed for metal printing and ordered the parts using this. Also, your collector reference for cost is misleading. The part is 3.5x2.5x3.3mm which is obviously too small for anything. I only noticed this because I spent about $50 on a stainless part that is 45mm diameter x 28mm high.
@CouchBuilt5 ай бұрын
Good catch. I had to go back and look. Seems the stl from grabcad was scaled to inches and I assumed it was in mm like most sane people use 😅. That changes the price to $80. I didn’t think anything was amiss as I had reasonably similar size aluminum part that ran me $25.
@JohnRaynor-vb2di5 ай бұрын
Great video very informative and interesting. Keep up the good work 👍👍👍
@gafrers6 ай бұрын
Inconel 718 FTW. Nice service too and great partner for this project. Is the post printing heat treatment done by the company or not? Looking forward to more on this Fantastic build
@andrewrigg49056 ай бұрын
Thanks so much for sharing this . Great detail and end results.
@tal533825 күн бұрын
Cool material 👍👍👍👍👍
@ExtraDry905 ай бұрын
Very cool. FYI titanium is not well suited to exhausts at all, but 3d printing may help as webbing or extra wall thickness could be added in stressed areas. Inconel is choice though
@CouchBuilt5 ай бұрын
I’m no advocate for titanium, but it is used by quite a few people. If they’re going to commit to that material choice, they at least have the option of adding 3D printing to the toolbox.
@ze_german29216 ай бұрын
I know Nelson Racing engines used 308 SS for their turbo headers. 316 is mostly used for sanitary application like food processing or medical devices.
@CouchBuilt6 ай бұрын
304 and 321 are the usual alloys for header fabrication with 321 having better heat properties. 316 is comparable to 304 in heat resistance, but is more corrosion resistant.
@jeffreywhitmoyer8605 ай бұрын
In heat applications an L grade stainless, 308L or 316L is a better choice than straight 308/316. The difference is the L grades have a lower (0.03%) carbon content which reduces susceptibility to sensitization at temps over about 1200f. The carbon precipitates to the grain boundaries and forms chromium carbides resulting in higher potential for intergranular corrosion. Long enough exposure can lead to formation of sigma phase in the microstructure, which is an embrittling phase. Lower carbon prevents this from happening. Types 321 & 347 prevent this by adding either titanium or niobium respectively which ties up the carbon as titanium or niobium carbide, thus blocking the formation of the bad actors in the alloys. The molybdenum in 316L adds a slight amount of strength and prevents chloride corrosion.
@CouchBuilt5 ай бұрын
@jeffreywhitmoyer860 good info. Should be noted that the stainless materials in the quotes are indeed 316L for anyone who missed it.
@Just_Jesus_ef6 ай бұрын
Excellent video!!! Thank you
@justinguerrera83225 ай бұрын
Perfect video
@the_mysterious_gamer16575 ай бұрын
Would be neat for something like an inconel manifold made for an ST205 wrc edition
@gar244076 ай бұрын
My understanding from several GE presentantions of 3D metal printed parts for high temperaure application for gas turbines need extensive heat treatment and they encouter a high fall out rate. Hope this folks got the process figured out and the part can take the abuse. If I recall correctly the process of "melting" the metal creates internal stress that need to be annealed and relief via heat treatment.
@CouchBuilt6 ай бұрын
I have an acquaintance thats been involved in some turbine secondary machine work for such applications. It’s not an apples to apples comparison as those are usually moving parts at higher temperatures, pretty extreme rpm, and lightened to the max. This is just a static hunk of metal that’s twice as thick as it probably should be. I don’t foresee any issues, but time will tell.
@gar244076 ай бұрын
@@CouchBuilt I will be watching for sure.
@Hydrazine10006 ай бұрын
The problem, if you can call it that, is that "3D printing", or "additive manufacturing" is so diverse both in materials as in methods, that overall generic statements like that are meaningless. You can 3D print many different plastics, metals/alloys, some ceramics and even composites. The various methods use resistance heating, laser beam heating, electron beam heating (in vacuum) or electric arc heating. Some printing methods need debinding and sintering. Some are ready directly. Some benefit from a post heat treatment. You can print with powder, welding wire, filament, composite filament, concrete, 2-component materials and more... If this were Inconel with powder bed SLS printing (selective laser sintering) it could probably benefit from a post print heat treatment. If this was powder bed SLM (selective laser melting) it likely wouldn't need that. If this was made by binder jetting (metal powder printing with a wax-like binder) it would need debinding (removing the low melting binding agent) and sintering. Sintering will inherently stress-relief at the same time. So the short version is: It's complicated...
@CouchBuilt6 ай бұрын
In this case it was DMLS.
@Hydrazine10006 ай бұрын
@@CouchBuilt If that's on a printer from EOS, it's German for _Direkt Metall Laser Schmelzen_ so SLM, selective laser melting. SLS is older tech, resulting in slightly more porous prints.
@stephaniealden49265 ай бұрын
Wow this is insane such a good video
@RetroBeatsUK5 ай бұрын
ok so remember 3d print metal has 1% to 5% shrinkage. you always have to remember too add 1% or 2% size when at the model stage. think about it, the 3dprint metal has to be fired and so looses a few %. good video.
@HammerheadWOC6 ай бұрын
Snap this is cool af man!
@grimm_gen6 ай бұрын
Love watching your content! I also am planning an unconventional swap for my car!
@CouchBuilt6 ай бұрын
Awesome! Thank you!
@chrisbrown21745 ай бұрын
Awesome video, thanks for the tutorial 👍
@camofelix5 ай бұрын
Thanks for sharing all of this, subscribed! I’m working on a custom NA rotary build myself, mating to the DQ250 instead of the 500. Any chance you can share where you got the models of your 13B and the models of the DQ500? Trying to plan out drive shafts, having trouble planning the path of the half shafts between the custom intake manifold and the custom exhaust manifold. Cheers, FCLC
@CouchBuilt5 ай бұрын
The 13B model was by a guy on Instagram @mitchabbott_ I bought a STEP file from him and he also sells the STL. The DQ500 scan was from Domiworks. Neither were super cheap, but both were 100% worth the investment to ensure fitment before buying real parts.
@lukeburkill77675 ай бұрын
Definitely going to melt those fancy new sensor's 😂
@CouchBuilt5 ай бұрын
We’ll see. EGT is ahead of the sensor. I can easily put a safety in the ecu for EGT to keep it within rated operating temp.
@S7RING3R6 ай бұрын
this is insane
@WildEngineering6 ай бұрын
this was cool af
@phenomanII6 ай бұрын
I think I've heard of a channel that might want to consider 3D printing a 12to1 collector... :D
@chaplab6 ай бұрын
you are a legend!!!!
@anidiotinaracingcar48746 ай бұрын
I see you have a Micsig. It would be interesting to see how you use it as an automotive scope
@CouchBuilt6 ай бұрын
To make all this work with the factory hybrid components. I need to emulate a bunch of digital and analog signals that will be generated by my own hardware. I’m sure the scope will get some air time when I cover that stuff.
@raindeergames61046 ай бұрын
Awesome stuff. You deserve a sub😎
@makingtolearn6 ай бұрын
Really great video and super neat project. Subscribed!
@topherlikescandy6 ай бұрын
this is sweet!
@josezuma21166 ай бұрын
Great job!
@user-ci4cj5eq4x5 ай бұрын
how long have you been designing on fusion 360 and how did you get into it? did you design the entire turbo and engine in 360 too?
@olliebrown895 ай бұрын
Great video, subbed.
@jpii60744 ай бұрын
Where can one learn to use Fusion 360 like you do? I have designed some very basic brackets and other things but this is next level and I want to get there.
@90carkid2 күн бұрын
Any tips how to determine material thickness of a 4cyl T4 manifold when going with 316 steel?
@ultra4suzukisamurai6796 ай бұрын
I wish I had seen this earlier.
@alanmunroe83326 ай бұрын
How much housing distortion will affect Rotor Tip Seals, with the extended offset of Turbo? Add a Support Bracket? Old Skool thinker😊
@CouchBuilt6 ай бұрын
Probably not much. Still 10lbs lighter than stock twins from all the figures Ive seen.
@mingscustoms5 ай бұрын
Amazing
@nobodyspecial50265 ай бұрын
finally, we can put an end to the typical internet forum malarkey between various vendors merchandising saps and what some of is have been saying for years …
@nobodyspecial50265 ай бұрын
and Ti is not sufficient for a 13B or even most piston turbo applications, T321 or T347 would be much better if available.
@CouchBuilt5 ай бұрын
Agreed. I’m not an advocate for titanium but some folks commonly use it, so included as a reference.
@tehhermitsheep87113 ай бұрын
Restating it, not temperature sufficient as a header or turbo manifold. I had Ti fail at the rear due to stress. The full T321 system I built had T321 18 Ga going to 20 Ga on the header, and the 18 Ga. up close to the engine eventually suffered from heat fatigue cracking. The full 3” 20 Ga. T321 system out the back still lives to this day from being built in 2009. Back then Ti was not as readily available and cost more. I’d still advocate 20 Ga. T321 over Ti. The long term strength is much greater than the slight difference in weight.
@travistucker73175 ай бұрын
You need a bigger tap handle. Ebay a starrett 91 D
@balooooba5 ай бұрын
great video, instant subscribe. really cool project and a lot of overlapping skills with a Honda CRZ swap i'm working on. are you an engineer by trade?
@lolfungreg69646 ай бұрын
First! Love seeing progress!
@doit14506 ай бұрын
Super cool to know those tools!!! thanks!!! is it fusion 360? and how did you scan the engine and motorbay? or is it in a library? realy good chanel i love it cheers from France!!
@CouchBuilt6 ай бұрын
The scans were done with a Shining 3D Einstar. I’ll probably show a little more on that in a future video. I have to make some exhaust stuff for someones E32 BMW that’s lurking in the background.
@getahanddown5 ай бұрын
Would you normally print threads or just overfill then tap? Edit. I see you did overfill them a bit
@CouchBuilt5 ай бұрын
No, they are modeled at the correct size in the STL. It’s not possible to print them cleanly enough to be 100% accurate. This just saves the pain of cutting full depth inconel.
@getahanddown5 ай бұрын
@@CouchBuilt Nice work. Subbed :) Hi from New Zealand
@fluorescentmug833314 күн бұрын
how did you get a 3d model of the engine compartment?
@CouchBuilt14 күн бұрын
With an Einstar 3D scanner
@jamiereyna26466 ай бұрын
Odd question…what are your computer specs if ya don’t mind? My software lags when I try to rotate the part with the stl open like you have with part of the chassis. Quite annoying.
@CouchBuilt6 ай бұрын
It’s a 2021 Asus G14 with 40gb RAM. It only performs like this when plugged in. I’d like to upgrade, but next real notable step up always specs out at like a $5k workstation, which I can’t justify. I need to buy a DQ500 DSG instead 😂
@christoffer19736 ай бұрын
Should't the runners be equal length?
@CouchBuilt6 ай бұрын
They don’t need to be, especially on a turbo application where there’s positive pressure in the exhaust. You’re not relying on the scavenging effect for cylinder evacuation. I’ll always prioritize a shorter runner and better packaging over equal length. If you’re in a limited race series and shooting for absolute maximum power, or tuning the lengths to achieve a particular sound, then by all means the effort for equal length can matter
@tehhermitsheep87113 ай бұрын
except a 2-rotor has perfect 180° exhaust pulses and will show a difference between balanced equal vs unbalanced unequal length when possible.
@jimmyprasetyo67276 ай бұрын
Do it could be possible to put an order with a 3d model with 1mm wall ?
@CouchBuilt6 ай бұрын
I believe .5mm was generic minimum recommended wall thickness for a DMLS metal print, so that should be doable.
@jimmyprasetyo67276 ай бұрын
@@CouchBuilt thanks for the info :)
@ldadol6 ай бұрын
My nerd senses have been satisfied
@CouchBuilt6 ай бұрын
Just wait until I get into the hybrid integration hell.
@jacobmoses37125 ай бұрын
@RobDahm Have you seen this?
@jtmayes826 ай бұрын
Why not just use an Artec manifold?
@CouchBuilt6 ай бұрын
Because this is going in a BMW i8….
@namechane17585 ай бұрын
TLDR what was the cost?
@CouchBuilt4 ай бұрын
It would be crazy if in the first minute or two someone told you where to skip to for the costs.
@namechane17584 ай бұрын
@@CouchBuilt Make it the first 10 seconds and we got a deal
@petera44765 ай бұрын
Am I silly? It looks like the flange is not flat
@CouchBuilt5 ай бұрын
The bench is not flat. The flange is .0015” flat. Covered in my next video.
@Baard20005 ай бұрын
Could you PLEASE use EYE PROTECTION when TAPPING????? I have 2 customers with 1 eye left. 1 lost eye due to tapping . The other one lost an eye by lightly hitting a dowel pin back in place. PLEASE WEAR EYE PROTECTION!!!!!!
@88Smith526 ай бұрын
у метчика рабочая кромка завалена(
@marvinvisser50396 ай бұрын
What what.. 13b rotary bmw i8…
@CouchBuilt6 ай бұрын
Indeed. I explain a bit more about that in episode 1.
@airraptor6 ай бұрын
nice set up but a bit misleading saying printing in inconel then go with 316...
@CouchBuilt6 ай бұрын
I clearly show what the i8 manifold cost in inconel. The whole point of the demo was to show that 316 is within the average budget. My manifold is inconel from KleRo in Germany.
@MPbdy6 ай бұрын
@@CouchBuiltdid you need the extra heat or strength from inconel? What made it worth the extra cost to you? NA manifolds I could see going with stainless all day
@CouchBuilt6 ай бұрын
@MPbdy I originally planned to use stainless and I wouldn’t hesitate to do so. Inconel is simple a better material and when I saw the price, it wasn’t an outrageous jump. The amount that I saved with the motor I bought also played a part in going this route.
@gusbisbal98035 ай бұрын
"have been sanded flat..." your definition of the word flat is highly questionable.
@CouchBuilt5 ай бұрын
What tolerance do you consider flat for a manifold sealing flange?
@gusbisbal98035 ай бұрын
@@CouchBuilt +/1 1 thou 0.025 micron. unless your boosting only 5 psi in that case, your sanding will do.
@CouchBuilt5 ай бұрын
Considering the general rule of thumb for a cylinder head is .001” allowable per cylinder with the expectation to seal 1000+psi of combustion pressure from coolant and oil passages, the .0015” that this measures will be just fine for even a godawful 3-4:1 back pressure ratio maxing out the MAP sensor.