M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Swaps, Turbos, Buildups => Topic started by: bmwman91 on September 23, 2006, 02:57:50 AM

Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: bmwman91 on September 23, 2006, 02:57:50 AM
I was rolling through my CAD portfolio site and came across these.  I know a couple folks here have done some interesting ITB/custom plenum things.  I dunno, here is a little something to get some ideas out there.

Idea 1: My first idea for one...the early days of my CADing.
(http://prof.e30tuner.com/images/pr/mt1/image004.jpg)
(http://prof.e30tuner.com/images/pr/mt1/image002.jpg)
(http://prof.e30tuner.com/images/pr/mt1/image003.jpg)
(http://prof.e30tuner.com/images/pr/mt1/image001.jpg)

Idea 2: A little more CAD experience and fuel injector idea from Ferrari F1 motor
See the attachment at the bottom for a little artistic license I took with it.  The heat shield was more or less real.  I made one from aluminum sheet and made a CAD version of it after.  I even made a wood mold & bought a vacuum pump so I could bag a CF one (had the fabric & marine epoxy).  I just never got around to it, and am sticking with the OE filterbox on my 2nd M42.
(http://prof.e30tuner.com/images/pr/mt2/image002.jpg)
(http://prof.e30tuner.com/images/pr/mt2/image003.jpg)
(http://prof.e30tuner.com/images/pr/mt2/image005.jpg)
(http://prof.e30tuner.com/images/pr/mt2/image004.jpg)
(http://prof.e30tuner.com/images/pr/mt2/image001.jpg)

I still have the model for the injectors if anyone wants a copy.  They were made from measurements I took from real ones.  Lemme know what format you want them in and I will do what I can.  STEP is probably the easiest, and I use IronCAD anyway so the feature data would be lost in any translation.

There is a bunch more stuff over there too:
http://prof.e30tuner.com/
I have models I made for custom coil-overs, custom AL flywheel and an exploded I4 engine.  The engine model...it is a veritable Where's Waldo of "find the mistakes in the design."  I sorta did it off the top of my head when I was 19 in my spare time one week.  I keep meaning to do it again, for real.  I have a thread for that too lol.
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: nuvolarossa on September 23, 2006, 06:06:55 AM
Oh my god   :eek:
I'm a total ignorant of the CAD... but that is sick:D
Did you realise them (ITBs) or is only for show your CAD's abilities?
I've checked your portfolio, you are insane:p
great work man!
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: bmwman91 on September 23, 2006, 11:19:58 AM
The TB design was off the top of my head, sorta made it up as I went.  You can tell, too by looking at the injector bungs.  Sorta goofy lookin, but I got short on room.  I was 19 at the time & had not really torn into my motor at all.

The second one was after doing a couple teardowns, a good 3 years of reading & discussing concepts, seeing real-world designs, building  a Megasquirt management system and a plethora of other stuff.

BTW, who all here has custom intake manifolds on their ride?
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: asubimmer on September 23, 2006, 12:54:38 PM
ohh man, that looks insane!!!  I want one lol
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: dude8383 on September 23, 2006, 01:40:07 PM
Quote from: asubimmer
ohh man, that looks insane!!!  I want one lol


drool...me too
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: Ramblin MAn on September 23, 2006, 04:39:34 PM
not carbon fiber but....

http://pg.photos.yahoo.com/ph/ramblin_man_us/detail?.dir=5374&.dnm=a49dre2.jpg

http://pg.photos.yahoo.com/ph/ramblin_man_us/detail?.dir=5374&.dnm=5029re2.jpg
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: nuvolarossa on September 24, 2006, 01:47:04 AM
Quote from: Ramblin MAn
not carbon fiber but....

http://pg.photos.yahoo.com/ph/ramblin_man_us/detail?.dir=5374&.dnm=a49dre2.jpg

http://pg.photos.yahoo.com/ph/ramblin_man_us/detail?.dir=5374&.dnm=5029re2.jpg

specs of your engine? hp?
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: Tonyb on September 24, 2006, 02:57:10 AM
Wow!!!
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: Ramblin MAn on September 24, 2006, 09:47:14 AM
don't applaud yet.

I bought this car sight unseen and thought it had a stock intake manifold on it. But instead it had this.

The car is using all of the STOCK motronic EFI components and it just doesn't run right. If I blip the throttle it behaves like I need an accelerator pump. I also have a weird stall-recover-stall-recover-stall-recover... issue at around 2800 rpm. I towed the car home to Cincinnati from Denver and have yet to drive it further than the driveway which is why I joined this board. Trying to see if I can make the stock components work before going to aftermarket.

I'm sure it must be running lean and need a new fuel map but it would nice if the efi would compensate.

The problem seems so similar to others that I have read about so it makes me think there is just some stock peice that wasn't used correctly or was damaged. As I don't have a good m42 as a basis so I have to rely on Bently, Haynes, BMW and you guys.

Bently, Haynes and BMW have been kind of lacking so it's up to you guys.
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: asubimmer on September 24, 2006, 12:50:57 PM
I'll trade manifolds with you ;)
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: Alpine003 on September 28, 2006, 09:29:14 AM
Nice CAD work! :cool:

Nice to see the aluminum texture on the tb but you can also see the imperfect overlap on the CF. Get rid of the ricer blue coupler. j/k. :p
Title: Custom Intake - Food for Thought [CAD Nerd Warning]
Post by: bmwman91 on September 28, 2006, 09:44:58 AM
Haha yeah I need a better CF texture.  That one is just a pic I nabbed from Tap Plastics' web site!

Yes, the coupler could stand to be black.  Buuuuuuuuut...crazy colored couplers and hoses add 25hp to the wheels per foot.  It's true, I looked it up in Sport Compact Car magazine :rolleyes:
Hehe I used to browse through those at Barnes & Noble just for a laugh...now I am embarassed to be seen tuoching one.  Fuuuuh raaaaze suckas.