Re: What plastic are intake manifolds made of?
[Re: Stanton]
#2697846
09/15/19 07:34 PM
09/15/19 07:34 PM
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Joined: Dec 2003
Posts: 22,701 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,701
Bitopia
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You will never know exactly IMO, it likely is rather proprietary and guarded..
Glass filled is however very likely. I would be surprised if today its nylon 6/6, which is a great material, but would be leery if it has sufficient temp durability for today's applications.
Want to share the reason for question?
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: What plastic are intake manifolds made of?
[Re: Stanton]
#2698313
09/17/19 08:29 AM
09/17/19 08:29 AM
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Joined: Jul 2003
Posts: 4,787 Holland MI Ottawa
2boltmain
master
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master
Joined: Jul 2003
Posts: 4,787
Holland MI Ottawa
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Just wondering about the possibilities of plastic high performance intakes. Unlike aluminum intakes where the sand molds take a lot of time and labor and the castings have to go through a machining process, plastic products come out of the molds pretty much "ready to ship" and the production process is much faster. The big expense is the finely finished molds. Yes Glass filled or Glass reinforced nylon. The nylon pellets actually have short strands of glass (just like fiberglass) in the pellets. Being nylon it handles heat and having glass in it provides strength and ensures dimension (less warpage). Thats what OEM units are made from. The carburetor manifolds say they are phenolic material. This stuff handles heat well also. The cost to build the injection mold will make you pass out. Gotta have guaranteed demand for many thousands of units to justify tooling cost.
Keep old mopars alive.
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Re: What plastic are intake manifolds made of?
[Re: roadrunninMark]
#2698665
09/18/19 09:01 AM
09/18/19 09:01 AM
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Joined: Apr 2003
Posts: 12,244 Looking for a way out of Middl...
IMGTX
I Live Here
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I Live Here
Joined: Apr 2003
Posts: 12,244
Looking for a way out of Middl...
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What about 3D printing them? They have printers that cant print in a lot of different materials now. This is what I teach. The technology is improving with carbon fiber reinforced plastics, High temp resins, and a myriad of materials. At the end of this path you need to figure out the 1. Material properties you need (Temp resistance, strength for given purpose, resistance to solvents, etc.) 2. Size of the print bed 3. Surface finish 4. Printer capable of water / pressure / vacuum products. (Many look good but fill them up with water and they leak) An alternate method that is easily used is to use a 3D printer to print the bucks to shape the sand in the molds for casting aluminum. This is what I am about to start on if I can find a donor Hemi head to get some measurements from. This may not be the method the OP posted about, but by using the two piece manufacturing techniques of plastic manifolds (notice most have a seam where they are glued together) and the readily available, easy to use aluminum material his end goal could be achieved and possibly be better in the end for small productions. Can it be done in a 3D printer? Yes because they can print steel strong enough to make a Colt 1911 that works just like traditionally manufactured one. NASA even prints rocket nozzles. Rigid to Flexible materials and lots of temperature ranges are easily selected also. Like everything it is just a matter of time and money.
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Re: What plastic are intake manifolds made of?
[Re: Stanton]
#2698867
09/19/19 07:24 AM
09/19/19 07:24 AM
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Joined: Nov 2004
Posts: 25,050 Texas
GoodysGotaCuda
5.7L Hemi, 6spd
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5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
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Just wondering about the possibilities of plastic high performance intakes. Unlike aluminum intakes where the sand molds take a lot of time and labor and the castings have to go through a machining process, plastic products come out of the molds pretty much "ready to ship" and the production process is much faster. The big expense is the finely finished molds. You can budget for an easy $700k+ for injection mold tooling on that.
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Re: What plastic are intake manifolds made of?
[Re: GoodysGotaCuda]
#2698899
09/19/19 09:23 AM
09/19/19 09:23 AM
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Joined: Apr 2006
Posts: 1,497 North East USA
BIGGERED
Reasonable Title
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Reasonable Title
Joined: Apr 2006
Posts: 1,497
North East USA
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[quote=Stanton]Just wondering about the possibilities of plastic high performance intakes. Unlike aluminum intakes where the sand molds take a lot of time and labor and the castings have to go through a machining process, plastic products come out of the molds pretty much "ready to ship" and the production process is much faster. The big expense is the finely finished molds. You can budget for an easy $700k+ for injection mold tooling on that. [/quotI I am somewhat surprised by 700k? I've had some experience supporting high end mold making. The most expensive I have seen was a 64 cavity, hydraulically rotated mold. I think it ran 900k including hydraulics for rotation and core pulls, it weighed over 10k pounds. It spits out plastic jars that appear to be glass. I realize jars are not intakes but the polishing these molds require exceed anything a intake would require. Not sure if a book mold could be made for intakes but based on low volume it would be something to consider! Red
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Re: What plastic are intake manifolds made of?
[Re: 360view]
#2707805
10/17/19 06:50 PM
10/17/19 06:50 PM
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Joined: Jan 2006
Posts: 8,162 USA
360view
Moparts resident spammer
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Moparts resident spammer
Joined: Jan 2006
Posts: 8,162
USA
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