Finally someone that really makes everything on it's own, really cool to see what it's possible to do when n you wan't to use simple tools
@tomjones59743 ай бұрын
Well he did get someone else to print the manifold.
@VIPK93 ай бұрын
@@tomjones5974 no shit
@tomjones59743 ай бұрын
@@VIPK9 context bro. Learn it.
@thepcmrtim3 ай бұрын
The rotary community needs you this is amazing. With love from Mass, CT neighbor.
@CouchBuilt3 ай бұрын
Hopefully I’ll have the car out at Grid Life Lime Rock next year. Definitely won’t be finished by August.
@ther1kid3 ай бұрын
Seriously Impressive. I've spent 20 years building out a full CNC machine shop business. With the end goal of building a car from scratch. It's looking like I could have just waited and 3d printed everything thing instead of 5 axis CNC everything. 3D print with some light finish machining is the future it seems.
@AlphaEngineer20223 ай бұрын
hey man, I've had that thought too, id love to do that one day. the guy that started renishaw done that, I visited to train on a machine they bought, they built an awesome car (McMurtry automotive) also have you seen the zinger c1? the main body is a carbon monocoque with the front and rear subframes being 3d printed titanium, I believe it is also machined to get it to bolt together correctly but it would save a lot of machining time. I posted a quick video of it on my channel. 🙂
@filonin23 ай бұрын
This opens up whole new ways of passing visual emissions requirements while gaining performance.
@CouchBuilt3 ай бұрын
That’s an interesting one I didn’t consider. Definitely opens some possibilities.
@censoredialogue16 күн бұрын
those welds made she shed a tear. beautiful
@joshjerauld17273 ай бұрын
On flattening, I've also had luck using a mid-high grit sand paper glued to granite or glass as a flattening surface. Awesome work on this project! I also really dig how you are 3d printing jigs for machine work. I should have done this when making my fuel rails!
@CouchBuilt3 ай бұрын
I need to invest in a granite block one day, along with a drop gauge.
@Hugh_Jassle3 ай бұрын
@@CouchBuilt check your local auctions. Surface plates from machine shops often sell for incredibly low prices. From what I've noticed, as a machinist and auction junkie, surface plates are one of the last items to have any attention given - often with only a single bid on them for the more visibly used ones. You can expect to get one for less than $50.
@CouchBuilt3 ай бұрын
@Hugh_Jassle thanks for the tip, I’ll keep an eye out.
@mwinner1013 ай бұрын
The black wrinkle finish is exactly what I was thinking.
@benaresq3 ай бұрын
Exactly, I was looking at the writing and thinking that it will look very stock BMW with black wrinkle finish just before you made the comment about the colour.
@kovacspis3 ай бұрын
This is gonna end up 100k+. And I'm here for it! Love the project, man.
@scotty3053 ай бұрын
This is incredible. Many rotary people suggest to add a heat shield between the intake manifold and the exhaust/turbocharger, it might have been nice to add a provision for that onto the intake manifold. Thanks for addressing the flange flatness, I wouldn't trust most of the belt sanders that I've used but it's it's hard to argue with a feeler gauge.
@M3srry3 ай бұрын
I work in the additive industry in SLM technology and it was very refreshing hearing and seeing your knowledge through out the video as you work with the printed parts you received. Metal AM is even more exciting for me when I see it in automotive application. Most definitely subscribing.
@MartinBalle73 ай бұрын
Looks good. I think I would add some support between the intercooler and the engine just to take some of the load off the runners
@CouchBuilt3 ай бұрын
100%. That’s the plan with an adjustable Delrin pad.
@802Garage3 ай бұрын
Completely awesome! I recently designed a throttle body adapter for a 13B intake manifold, which is a much smaller task. It was still very interesting to get quotes on having it CNC machined or 3D printed. I was surprised how expensive 3D printing metal was, but as the price comes down it will become more and more viable! I think for a seriously complex item like this where the cost of CNC would be so high, it's already reaching that crossover point. Not to mention when the geometry would be literally impossible for CNC as a single part. Really appreciate these videos!
@mattbohl29433 ай бұрын
Your channel has given me hope to keep so many older things on the road.
@802Garage3 ай бұрын
With modern tech, literally anyone can get any part reproduced or even improved as long as they are willing to put some reverse engineering and design work. With some solid effort, you could even recreate a carburetor that hasn't been manufactured in over a century. It's super awesome! You can even make the prototypes at home with a basic 3D printer, iterate to your heart's content, and then have it made out of any material you can think of with a simple online ordering service.
@corey_nz3 ай бұрын
First time viewer. KZfaq recommended this video to me and I'm glad I clicked. Very neat presentation style, you're straight to the point but also good at showing/explaining everything that's going on and why without making it too drawn out. Will catch up on the rest of the vids and tune in for more 😃
@knoxsp3 ай бұрын
This is absolutely amazing work. Loving this series.
@Inimigor13 ай бұрын
Happy to get another good rotary content fix so Rob can focus on pikes peak prep!
@802Garage3 ай бұрын
Ey, Rob just released another video!
@CouchBuilt3 ай бұрын
Quite annoying. I need to stop progress and watch.
@buiItnotbought3 ай бұрын
Fabdaddy content
@Dr_Xyzt8 күн бұрын
For paint, Cerakote Glacier Black would be pretty nice. It's hydrophobic and easy to clean. Then just sandpaper the lettering. Another option would be to vapor blast the whole thing and clearcoat it with Cerakote MC-5100. That stuff is extremely hydrophobic. -- What an amazing time to be into cars. We can literally just print things. I suppose I can have that BMW M88 I've always wanted.
@Proto-Spiral3 ай бұрын
This build is really turning out super sick. Never realized how accessible 3d printed metal parts were, definitely want to find a way to implement that in a future project myself. Thanks for posting and showing the process!
@phenomanII3 ай бұрын
I was wondering about flatness but trusted the process. I definitely didn't expect the bench to be that curved! You need a drainhole in that thing :P
@westhave3 ай бұрын
As someone who has been designing and developing his own 13B inlet manifold for the last year or so, this couldn't have come at a better time! While I was alreadly looking into getting some more intricate pieces printed and then weld everything to CNC machined flanges, the idea of printing the entire thing didn't seem in the realm of possibilities until now. Thanks for showing this, and keep up the good work!
@jeffreymoore41323 ай бұрын
That's not bad for a one off completely custom unit. Sheet metal custom IM are similarly priced and you don't have nearly as many weld points. Thank you for sharing your journey with us.
@danoontjeh1233 ай бұрын
Wow! How does this channel only have 6k subscribers? This is such high quality content. Discovered it by accident but subscribed immediately. Love to see it.
@grampsog89343 ай бұрын
i subscribed just to hear this motor run
@shed_mfg3 ай бұрын
Absolutely fantastic start to finish.
@nicoquattro39503 ай бұрын
Nice videos man. But you should have also welded the middle bar of the coolant intake on your intercooler. Wouldve been quite easy, just cut the intake cap on one side of the middle bar in half. Wasted performance, and, water could get pressed through the gap between the core and the middle bar and create cavitating. I know, highly unlikely at such low flow rates, but just a tip.
@CouchBuilt3 ай бұрын
Would be be better welded? Maybe. One nuance you don't see is that the cap rocks on the center divider slightly, so that point has the greatest contact with the core. When its welded, the joint shrinks and pulls, drawing it in even more against the mating surface. With such low flow and having equal core on both sides, it really wasn't worth splitting the part for this use case.
@nicoquattro39503 ай бұрын
@@CouchBuilt I know. Autism kicked in, and i had to point it out lol. Another question: do you plan to add any supports to the intake and exhaust manifold to support them? Like one thin walled strut from the underside of the intake manifold to the engine block. Seen that on a lot of OEM engines to prevent stress cracks on the flanges.
@CouchBuilt3 ай бұрын
Yes, there’s going to be an adjustable Delrin pad underneath for support. Even with 5mm wall thickness, I’m going to keep it supported.
@KurtAndresKA3 ай бұрын
Damn that twin power turbo on the manifold is a really cool detail, the project is looking great 💪🏼
@imakedookie3 ай бұрын
one of the COOLEST segments ive seen in a while! holy moly you are a talented fabricator, great engineering and you truly seem to have some intelligence. PLEASE MAKE MORE CONTENT! FULL SUPPORT
@JetEnginesIndia3 ай бұрын
What an OEM will probably take years to achieve and build. Awesome stuff!
@breadbaconcheese3 ай бұрын
crazy level ingenuity and detail for "home" builder. subscribed!
@auckwads81693 ай бұрын
Quite impressed with the finsh and price for such a large item printed in metal
@Bram-rh3fn3 ай бұрын
First of all mad respect for the time you spend thinking, 3D modeling etc. This is the real shit, this is a real build not bought car when finished. You earned yourself a new subscriber. At the and of the video you let us give you ideas About any Color for the intake manifold. You said powder coating but Maybe cerakoting it would maybe be the beter option. Here me out why, cerakote is excellent in keeping heat in the material itself prevending ir heat for example: turbo manifold, exhaust etc. But cerakote is not only excellent in keeping heat in the material itself but also heat protection, for example the ir heat created by the exhaust manifold, since its good in keeping heat inside the material itself also means it needs a lot of ir heat to pentrate the cerakote layer and start heating up the aluminium itself and thus automatecly heating up the air inside the manifold itself and hotter air means less oxygen less oxygen less fuel less fuel less bang less bang less hp. not saying That powder coating is a bad idea, but cerakote c series is aircuring instead of oven curing like poweder. And c series had the same strength as oven curing cerakote. And since all parts are already sandblasted what cerakote needs to bond maybe a thing to consider. Why you think, because the ir heat protection since the exhaust manifold and intake manifold are close to each other. Maybe considering cerakoting the exhaust manifold as of the part about keeping the heat inside the material, Sorry for my maybe sometimes wrong writen words Greetings from the Netherlands🚗💨
@yucannthahvitt2513 ай бұрын
I used to have a friend who worked in a marine diesel engine shop. They had a massive belt sander (a "belt resurfacer") that they used to surface things, including marine diesel heads (which are usually one cylinder per head). I had them flatten many a header flange for me. That has a machined flat surface that the belt runs on and a high quality belt, but I imagine any decent belt sander is good for an exhaust manifold.
@DMSparky3 ай бұрын
You’re the king of cool in my eyes.
@ThoitPremium-bh8kb3 ай бұрын
Wow just wow! What you are doing still amaze me! What great work!
@bentracy746322 күн бұрын
Well I'm certainly envious! Great work, the parts looks wonderful and it's quite the interesting project. A rotary in an i8? Interesting. I designed a manifold for my 12AT a year or so ago and have just been waiting until I can afford to get it printed in a similar fashion. Definitely look forward to a decade or two down the line when this tech gets a bit cheaper. It's hilarious how similar the design is too, granted I guess there isn't too much to deviate on the rotary platform. Sorta fun to almost see "my" concept come to fruition through a different lens. I have the same issue of no center-iron injectors because it's a 12A so when I said it's a similar design I really meant it, it's almost uncanny with a few differences up top with the plenum. Currently I run the factory Nikki carb intake with a printed CF-PA "injector adapter" that holds the throttle and injectors and everything. The injectors are way too far away from the engine for decent drivability but it does work and makes good power. You sort of have to make do on a uni-student budget so it is what it is. DBW also helps keep things a little more tidy since it saves the need for an IACV (which it used to have) but a proper custom manifold is definitely the goal. Anywho, pardon nerding out a little, it's just so cool to see basically the same thing I've been wanting to do for approaching two years now. Absolutely love it, great work! Edit; just got to the fuel rail bit and I did the exact same thing! 3D printing jigs has been a massive aid in working on custom automotive stuff. I made drill jigs for moving the oil gallery connections for the oil pump outlet and front bearing feed (both to the front iron) as well! Minor stuff I know but I'm just nerding out, apologies. Cheers!
@brapgarage3 ай бұрын
I am geeking out watching this build. Love all the walkthroughs and explanation.
@NeoIsrafil3 ай бұрын
This is really cool to see. I love seeing 3d printing used for automotive parts, its rare that i get to do it on my own car since i cant afford metal printing but one of these days i hope to do lost pla casting to make a self made engine. The fusion export issue has to do with the level of detail settings when you export, fusion is honestly terrible at import and export stuff. Itll add more mesh the more features youve got in the area, so if its just a large tube it ends up low rez unless you turn the resolution up to a frankly ridiculous level. Until recently i was using fusion, but they booted me from the startup edition i was learning on, so ive switched to seimens solid edge (fully featured and free to makers and hobbyists) and honest to god its night and day better in every single way. One of these days ive gotta write a thank you to autodesk for forcing me to learn something else because noone would use fusion if they knew how much better everything else is. 😂
@RS-ls7mm3 ай бұрын
That's way cheaper than I thought it would be. Prices have really come down. Can't wait until I can do it at home.
@No13b3 ай бұрын
Super impressive stuff, irony is I took the 13b out lol Really interested to see the final i8, such a great looking car.
@SONO4B11T3 ай бұрын
The fitment is amazing, subscribed !
@madrew20033 ай бұрын
Very nice work! I can't wait for the final result.
@finchers_garage3 ай бұрын
I'm so glad I found your channel!
@burningdieselproduction54983 ай бұрын
You’re a legend!
@brokeafengineerwannabe20713 ай бұрын
I KNEW this is coming
@lesleymasekela52553 ай бұрын
I like the way you follow precision
@andrewrigg49053 ай бұрын
Great results . Should work a treat.
@Stona9993 ай бұрын
That came out really nice. Great job!
@TravisFabel3 ай бұрын
Love the content. Love how you show your basic fusion360 info, and then the final part... not hiding issues or gotchas either. I do wonder why the velocity stacks have a gap under them? if they were flush with that plenum "floor" there would be nowhere to trap debris and be just as smooth. Is there a function for that gap that I am unaware of?
@CouchBuilt3 ай бұрын
They are projected off the floor for better flow. I’d suggest googling velocity stacks and laminar flow if you want to dive for more details.
@ultra4suzukisamurai6793 ай бұрын
This is so cool. Beautiful work!
@htmotorworks7993 ай бұрын
Really nicely done and fascinating. Thanks
@thehansepeter3 ай бұрын
Your content is so satisfying to watch! Awesome
@gafrers3 ай бұрын
Great work and explanations
@rozijnenkoek3 ай бұрын
This is awesome
@jsomething23 ай бұрын
this is pretty amazing
@seppukun2083 ай бұрын
You can make 3D printed aluminium stuff now?! That’s insane! Imagine the possibilities!
@gibby38203 ай бұрын
Sweet stuff, glad i found your channel
@Hexenmiester3 ай бұрын
Pretty sick stuff. Nice one
@mikecameron776728 күн бұрын
Tis is awesome.
@Oliver-wn2ui3 ай бұрын
Love this channel
@snow41man3 ай бұрын
Just found this series and I am all about it!!!! Been thinking about engine swapping an I8 and knew about the engine constraints. Just binged all your videos then also Robs 13b 700hp video. Any reason why your not going Nexus? I assume its the BMW support for the CanBus on Max. What are your HP goals, why EFR? Not that smallest turbo to put within a restricted space. Awesome to see another New Englander jumping into a project like this.
@CouchBuilt3 ай бұрын
Maxxecu was primarily chosen because it has native control of the DQ500 trans over CAN, as well as a super flexible CAN and custom tables/maps. I like the EFR because its all self contained. My original plan was for an EFR9180, but it was on backorder at the time and this 8374 has an upgraded Bullseye Power batmowheel compressor. Looking to get around 500whp to start, then lean on it a bit harder and see where I reach the point of diminishing returns. Thatll be a good step up from the 220 or 230 the factory ICE makes, and the additional power from the hybrid components will be there as well.
@philmariop3 ай бұрын
Cool build. New sub. Key word is "reasonable". If your method achieves satisfactory outcomes, then send it!
@justinguerrera83223 ай бұрын
Another great video. Keep them comi g
@OoMDCToO3 ай бұрын
Subbed. Wish you all the best with your project(-s)!
@ExtraDry903 ай бұрын
I’ve found that when exporting meshes from some cad software; the angle from which you’re viewing the part at the time you export it can effect the resulting mesh
@CouchBuilt3 ай бұрын
That’s interesting. I’ll have to explore that further.
@invasivecoyote13613 ай бұрын
I am very much interested in the thermal pressure and abuse this is going to see. Starting and ending measurments for the race season, i want to know how much it tweaks under abuse. Those welds on the heat exchanger have a tough job ahead of them. I would keep it at 18 lbs of boost briefly. 24 lbs put on your balistic saftey glasses, P= (2*T*S/D) for your weld should help. Ironically you have a license plate behind you that says bad idea.
@CouchBuilt3 ай бұрын
Barlows equation is irrelevant for the plenum, but at least the runners will take 9,760psi
@invasivecoyote13613 ай бұрын
@@CouchBuilt was looking for the weld strength, not the base metal strength. I'm digging through my college notes their is a different equation for weld strength under bost/heat.
@CouchBuilt3 ай бұрын
@@invasivecoyote1361 Absolute weld strength isn't even worth consideration here. Most motorsports component weld failures under pressure are due to flex of the joined material over the weld joint itself. There's a reason you don't see any large flat surfaces, and the closest thing to a flat surface has convenient stiffening ribs as part of the logo. If temperatures in the intake are enough to alter the strength properties, the car is on fire.
@invasivecoyote13613 ай бұрын
@CouchBuilt I'm not banging on your door. Sorry if I came off that way. I very much appreciate your artwork. I'm just a fellow car hobbist such as yourself, and I have dabbled in making mainfolds, both intake and exhaust. Simply pointing out my past failures and experiences. I built an intake similar to yours except a BBC 454, and it blew a nice chunk out at the lake doing more than I should have asked of it.
@CouchBuilt3 ай бұрын
@invasivecoyote1361 nothing taken offensively, just pointing out some details that others might be interested in response to your comments. Using sheetmetal for intakes puts significantly more stresses on welds. This is why you’ll often find vertical supports welded in large inline layout motor plenums to prevent flex, which would manifest as a blown weld.
@TheBirells3 ай бұрын
Loving your content!
@alxvlx90203 ай бұрын
Очень интересный опыт!
@kowalskitk43 ай бұрын
Great work. Thanks for sharing. Did you think about dimple dies on intake runners? (Golf ball sufrace)
@Walldodger3 ай бұрын
Is part shrinkage ever a problem or is it not a concern? Your channel has inspired me to try making more of my own parts this way. Thanks
@winiary_taniegruzy3 ай бұрын
Wrinkle black might be too much, just satin black with polished lettering and ribs would be amazing
@joell4393 ай бұрын
👍👍👍👍👍
@riccardo17963 ай бұрын
Blue and White to keep the i8 scheme?
@Dietcola13 ай бұрын
Wow it's beautiful, you modeled all of that in fusion 360?!
@CouchBuilt3 ай бұрын
Yup, through a lot of pain and suffering I arrived at a good method for modeling stuff like this.
@Rantandreason3 ай бұрын
Also, you may want to do full FDM 3D prints before you send out final files Shrink them to make it so it doesn't take 3 weeks to print :P But when I do 3D prints, I ALWAYS miss stuff, and printing test copies helps me catch things
@CouchBuilt3 ай бұрын
Everything was printed at full scale on cheap PLA first
@Rantandreason3 ай бұрын
@@CouchBuilt did it have the same "creasing" in the PLA models?
@CouchBuilt3 ай бұрын
@Rantandreason not on that version. I made small tolerance changes, not involving the runners, before the metal printing. Something went pear shaped between the two
@Rantandreason3 ай бұрын
@@CouchBuilt yeah, we find that happens a bunch between me and a friend of mine. Sometimes he will come up with designs using CAD programs, and they look fantastic on the screen, but some weird ass results
@piotrek40003 ай бұрын
👏👏👏
@user-sd5wg1vg4e3 ай бұрын
The belt sander needs to be flat to ensure an accurate result. The straight edge needs to go on the sander first.
@CouchBuilt3 ай бұрын
The amazing part is my belt sander is a 20 year old harbor freight unit.
@user-sd5wg1vg4e3 ай бұрын
@@CouchBuilt Lucky or end user corrected.
@jamesdills67203 ай бұрын
Please consider doing a thermal dispersant on the intake plenum with a ceramic barrier on the exhaust and hot side of turbo..The company we used for the racing industry is techline coatings. You can even coat the hot side of the turbo...
@CouchBuilt3 ай бұрын
Turbine housing is already ceramic coated and the manifold and turbine will get inconel heat shielding.
@MrDanthemaniam3 ай бұрын
Is the printed aluminum dense enough to polish or would it be too porous to achieve a nice finish.
@EH-mh4it3 ай бұрын
Interesting question! I also wonder how it compares in strength to cast and billet parts.
@philipmurray97962 ай бұрын
Very cool technology! Question: Why are the inside runners smaller diameter than the outside two?
@CouchBuilt2 ай бұрын
A 13B has different sized primary and secondary ports. If you make the runner too large, you will lose intake velocity and negatively impact low engine speed performance.
@gptech24443 ай бұрын
Hi, great series you have here. Just wondering where you purchased the intercooler core?
@CouchBuilt3 ай бұрын
It’s a Bell Intercoolers Core. Verocious Motorsports is the dealer I usually buy them from.
@sofielee41223 ай бұрын
Given that flatness and smoothness are not at all the same thing, are you pretty confident that the belt sander did a decent enough job creating a smooth surface on your mating surfaces that you wont have problems getting it to seal?
@CouchBuilt3 ай бұрын
I’ve built more than a few manifolds. All have been sanded, none have ever had sealing issues.
@datashade3 ай бұрын
I notice no support bracket in your design, are the 3D printed SLS runners strong enough to support the entire assembly?
@CouchBuilt3 ай бұрын
It’ll have an adjustable support pad bolted to the motor. It would probably be OK with the 5mm thick walls, but not worth the risk.
@crow783762 ай бұрын
Interested in doing this same type of manifold for my twin charged hybrid crz….. anyone you would recommend to sub the design out to?
@EH-mh4it3 ай бұрын
How is the strength of printed aluminium compared to cast or machined billet? In other words, how much do you compensate for what I presume is a lower strength part?
@CouchBuilt3 ай бұрын
Strength is comparable to a cast part, possibly a bit stronger as there tends to be less porosity.
@anidiotinaracingcar487419 күн бұрын
Can you ask them to forgo the sandblasting entirely? This seems like an unnecessary risk for an intake manifold without much benefits
@CouchBuilt19 күн бұрын
I’m sure they’ll happily do less work.
@user-ml1yi9le8v3 ай бұрын
Nice job. Adding filler with bare hands is not good way. You are also adding your sweat to your welds.
@Rantandreason3 ай бұрын
Have you tried vapor honing one of those aluminum 3D parts?
@CouchBuilt3 ай бұрын
I had my motor housings vapor honed. They came out nice .
@Rantandreason3 ай бұрын
@@CouchBuilt if you get a chance, and you have some spare 3D printed aluminum, you should give a piece to the guy that did it and see what results you'll get The reason I'm suggesting it is because you mentioned that oil and dirt sticks to the finish of the parts you got printed With Vapor Honing, if you use very fine glass bead, it gives it a super nice shine and you don't get the oil and grease prints anymore
@Rantandreason3 ай бұрын
@@CouchBuilt I was trying to find the video but I saw it years ago. It was a motorcycle shop that did VH as part of it's repairs, and this guy had a part he had done and left it on the front counter. He said it had been there for like 5 years, and it looked like he just took it out of the tank, even thought customers came in and played around with it every day May be something to consider
@777MAV2 ай бұрын
I never saw anyone addressing 45 degree seal for the Bosch pressure+temp sensor, I have couple of those installed with copper washer under the sensor and it seals this way. Can you share any sources that describe correct installation procedure?
@CouchBuilt2 ай бұрын
Check out the technical drawing. I’m sure a copper crush washer works fine as well. www.bosch-motorsport.com/content/downloads/Raceparts/Resources/pdf/Offer%20Drawing_261221899_Pressure_Sensor_Combined_PST-F_2_350_bar.pdf
@777MAV2 ай бұрын
@@CouchBuilt thank you! Found this one as well, but it's for different one, 350 bar version. It has slightly different shape...
@CouchBuilt2 ай бұрын
The smooth tip and the one with the groove both use the same seat machining from any of the drawings I’ve seen. There are hundreds of Bosch sensors so I try to limit my use to the ones that have documentation available.
@colinstu2 ай бұрын
Wouldn't equal length runners be better?
@CouchBuilt2 ай бұрын
They are equal length to
@km68323 ай бұрын
Couldve sent the manifold to a machine shop and ask them to deck it I dont get why people do the water entry and exit on the same side, just let it cross flow you want to take heat out. When you reverse the flow you just tranferring heat into metal
@CouchBuilt3 ай бұрын
Front motor mount doesn’t allow a cross flow layout.
@km68323 ай бұрын
@@CouchBuilt understood.
@SinghsPlace3 ай бұрын
I didn’t catch how you finished the 3D printer injector inlets/ports. Do you mind sharing?
@CouchBuilt3 ай бұрын
I’m not quite following what you’re asking?
@SinghsPlace3 ай бұрын
Did you have to clean up or do any post processing where the injectors sit into the manifold?
@CouchBuilt3 ай бұрын
That’s covered in the video.
@petek93483 ай бұрын
you think that TB is gonna be big enough?
@CouchBuilt3 ай бұрын
Plenty big enough with fantastic driveability.
@ashishpatel3503 ай бұрын
the belt sander will get it flat like the earth. its good enough lol 🤪
@cyclefabllc823 ай бұрын
What tap handle is that?
@CouchBuilt2 ай бұрын
a.co/d/2lMvRLr
@georgeplevritis51903 ай бұрын
Subscribed and thank you this is some great content, just curious why the rotary?
@CouchBuilt3 ай бұрын
Biggest punch in the smallest package. That and I’ve never messed with one before. Should be a fun mixture of EV efficiency with high fuel consumption rotary.
@georgeplevritis51903 ай бұрын
I agree but how big of a punch are we talking about. It hard to know who knows what from comments on u-tube so I’ve always been reluctant to comment but I’ve done quite a bit of tuning on the rew’s, imo your lucky that it’s not bridge ported and it only has a small street port and that everything looks good inside. What do you expect idle quality to be? What rpm? I believe your intake design is going to affect it.
@CouchBuilt3 ай бұрын
@georgeplevritis5190 the dyno will tell in time, but Turbo Source has been reliably, in rotary terms, easily clearing 500whp on many similar EFR turbo setups on good fuel. The factory ICE motor only made like 220hp, and the EV stuff will still be there to contribute.
@georgeplevritis51903 ай бұрын
Sorry maybe I’m coming off wrong, I know the capability of the 13b, whenever we did one obviously to make more power you have to port it, street, bridge, semi periph, full periph, the thing I hated about that is you end up losing low rpm port velocity so you have to bringing up the idle, not to mention that most also add much larger injectors so pulse widths add to the problem, I always go back to Mazda and think they obviously knew this thats why they block off the secondary ports @ low rpm. If the prices weren’t as crazy as they’ve gotten I would totally do 13B rew again but I would change my strategy.
@CouchBuilt3 ай бұрын
Got where you’re going. This is a pretty decent street port. That’s why I went with dual secondary injectors over single massive units as well.
@simmonsdavonАй бұрын
😂 don’t @ me bro 😎
@jamesr73353 ай бұрын
I'm not sure about metal 3D printing but I do all the FDM printing at my work and you get a much more accurate finished product when you export and slice the model as a .st(e)p vs a .stl. I'm using Inventor and Prusaslicer. The end of this is what I'm talking about. kzfaq.info/get/bejne/iJZ-hs-DvK6weIU.html
@Rantandreason3 ай бұрын
for reference, in case you're not sure what it is kzfaq.info/get/bejne/bKyCgrqWx7yvmnk.htmlsi=EHWBTGDbHKjlv6Fw&t=148
@VictorMPR3 ай бұрын
That throttle body looks like it belongs on a 1.8 four-cylinder engine… or is it just the camera making it look small? 🤔 Hhhmmm you did say 68mm. Why so small?
@CouchBuilt3 ай бұрын
68mm isn’t small. This isn’t a 6L V8 and I’ll always choose the smallest throttle body that won’t be a restriction as it has much better drivability.
@rebellion3D3 ай бұрын
E32 @ 4:52 ?
@CouchBuilt3 ай бұрын
Yea, friend/customer car for some minor exhaust stuff.