Who wants to design a LZ itb intake and 3d print it?

[Shaun41178(2)]

https://youtu.be/rJtX_xwq_4M?si=qjNfqvcIWlzUw2pi

[Series8217]

Very exciting to see how much the price has come down for 3d-printed metal parts. Kids have it so easy these days!

I'm eager to find a project to use this tech on...

[NoGoodFiero]

That transverse Rotary setup is interesting.

Obviously printing with metal would be more durable but you dont even need to (especially on the intake side), people have been printing with plastic (carbon fiber infused nylon) with excellent results.

[ericjon262]

That transverse Rotary setup is interesting.

Obviously printing with metal would be more durable but you dont even need to (especially on the intake side), people have been printing with plastic (carbon fiber infused nylon) with excellent results.

this is my next step. I was figuring I will fab a lower, and then 3d print the upper, if nothing else as a proof of concept.

[CaptainHindsight]

I can cast them in aluminum, iron, steel alloys or stainless. I have access to a foundry.

Do you have an 3d models yet? I can also just scan an original or use it to make patterns.

On the additive side I can formulate epoxies and composites to quickly print them using mSLA.

[Shaun41178(2)]

I can cast them in aluminum, iron, steel alloys or stainless. I have access to a foundry.

Do you have an 3d models yet? I can also just scan an original or use it to make patterns.

On the additive side I can formulate epoxies and composites to quickly print them using mSLA.

I haven't done any software design. I think I have an extra intake here but they are abundant. Here is one example as what they might cost you for a used one

https://www.ebay.com/itm/223802245510?c ... 60QAvD_BwE

[CaptainHindsight]

I had one sitting around until last year myself. If I was going going to make a bunch I'd cast them in aluminum.
What do you want up top, individual throttle bodies?

[Shaun41178(2)]

Yea. Itbs up top is what I'd want. Something around 52-55mm

Here was my old itb setup. I had and maybe still have a bunch of pics, but this thread has a video or two and some pics of how it looks. Maybe someone else here can post up old pics if they saved them

https://www.v6z24.com/threads/lx9-3-5-t ... ro.139185/

[Series8217]

I'm happy to 3D scan an intake for you if you want to send me one.

[Shaun41178(2)]

I had one sitting around until last year myself. If I was going going to make a bunch I'd cast them in aluminum.
What do you want up top, individual throttle bodies?

here are some more pics of my old itb setup. this was on an lx9 3.5l. This is the design I would be looking for with a 3900, but with a bolt on tb instead of the integrated butterflys into the casting.

IMG_0535.JPG (1.99 MiB) Viewed 2456 times

IMG_0068.JPG (1.55 MiB) Viewed 2456 times

IMG_0061.JPG (1.58 MiB) Viewed 2456 times

[Shaun41178(2)]

IMG00750-20110107-2310 (Medium).jpg (47.1 KiB) Viewed 2454 times

IMG00744-20110107-2301.jpg (290.03 KiB) Viewed 2454 times

IMG00742-20110107-2259 (Medium).jpg (47.58 KiB) Viewed 2454 times

[Shaun41178(2)]

WP_20150828_002.1.jpg (137.61 KiB) Viewed 2454 times

V__A1D7.jpg (270.21 KiB) Viewed 2454 times

[Shaun41178(2)]

IMG-20111115-00239.jpg (2.47 MiB) Viewed 2454 times

IMG-20111115-00237 (Medium).jpg (67.11 KiB) Viewed 2454 times

IMG01062-20110418-2030 medium.jpg (189.3 KiB) Viewed 2454 times

[CaptainHindsight]

OK I see, fairly simple.

It's neat seeing the progression of the quality of the image sensors over time.

Edit:
https://www.v6z24.com/attachments/img_0041-1-jpg.95113/ I had a few questions until I saw this.

[Shaun41178(2)]

OK I see, fairly simple.

It's neat seeing the progression of the quality of the image sensors over time.

Edit:
https://www.v6z24.com/attachments/img_0041-1-jpg.95113/ I had a few questions until I saw this.

Making an ITB for this 60 degree engine is a bit more involved than say an LS style engine. Obviously narrower engine, but also the lifter valley and oil drain back is under the lower intake on these 60 degrees, whereas on an LS it's not exposed, and can be covered with a valley plate.

I know Erik did a quick drawing in cad or some software a while back and posted a rough drawing of the lifter valley flanges and what not.

Will has an ITB INTAKE like I had, which the top part with the runners could possibly be scanned, and then the underside of an lz Intake be scanned, and the two combined in software? I don't know. It makes sense to me but I haven't played around with any of that type of software.

A casting or a billet piece would ultimately be the best. I might actually splurge for that

[CaptainHindsight]

Bottom

s-l1601.jpg (190.28 KiB) Viewed 2431 times

Top

s-l1600.jpg (153.6 KiB) Viewed 2431 times

Top Side - Where the individual throttle bodies go.

[CaptainHindsight]

man-00.jpg (126.44 KiB) Viewed 2426 times

Slicing the top off the current manifold and adding the ITB's might look like this installed. Only more pretty.

[CaptainHindsight]

s-l1600b.jpg (157.04 KiB) Viewed 2424 times

Just have to leave room for the injectors and the seats with the tabs for the hold downs/clips.

[CaptainHindsight]

Anyone have rough measurements for the lower manifold X-Y as viewed from the top or bottom? Measuring tape accuracy is all that is required.

dlp_4k_printer04.jpg (533.6 KiB) Viewed 2416 times

I might be able to fit it into this printer.

https://imgur.com/zKNtBAg

It's a mSLA and I can make resins hold up to temp and stress.

[Shaun41178(2)]

man-00.jpg

Slicing the top off the current manifold and adding the ITB's might look like this installed. Only more pretty.

A guy named Marc a long time ago built a custom set but for an lx9/ 3400 lower intake manifold He did lz9 swaps in mgbs and what not. Had health issues, disappeared.

Instead of posting pics, I'll just post the link
https://www.60degreev6.com/vb5/forum/no ... p-for-sale

Not a real fan of this setup as it still uses the long factory runners on the lower intake. My itb intake had maybe 5-6 inch runners total and larger ports than a factory lower intake. I'd prefer it to look like my old itb, vs just bolting butterfly's onto the factory lower LZ intake