Plastic Intake Manifolds, What THE...

[Rogue Leader]

Originally Posted by One Mean Chevy

The gears I'm referring to doesn't spin with the engine you turn the dial on the side to tension the chain. Unless you are tensioning the chain the gears don't move.

So you're basing your opinion on an intake manifold uses successfully for over 10 years on one of the best performance cars in the world that took many years and dollars of R&D to develop on the quality of some plastic gears in a cheap chainsaw....

My brain hurts......

[zforce]

Originally Posted by Rogue Leader

Pass the pipe that must be some strong shit!

pot head.

[One Mean Chevy]

Originally Posted by Rogue Leader

So you're basing your opinion on an intake manifold uses successfully for over 10 years on one of the best performance cars in the world that took many years and dollars of R&D to develop on the quality of some plastic gears in a cheap chainsaw....

My brain hurts......

NO, I'm just a little plastic shy() right now and just found out about plastic manifolds and blew my top. Also the newest engine I have touch and looked at up close and personal is a 92.

[383ss]

wow, just wow. why do people post this shit?

try doing a LITTLE research

[Mr. Wyndham]

Originally Posted by One Mean Chevy

Also the newest engine I have touch and looked at up close and personal is a 92.

That....could explain it.

[One Mean Chevy]

Originally Posted by 383ss

wow, just wow. why do people post this shit?

try doing a LITTLE research

The name of the forum is: Camaro V8 LS3 / L99 Engine and Powertrain Discussions Discuss V8 engine and powertrain for the new Camaro.

I figured this was a great place to get cold hard facts on the LS3/L99 in the Camaro SS. Information specific to the Camaro's LS3 doesn't say anything about what the intakes are made of. GM could have decide not to use plastic manifolds on the Camaro. As one poster put it, Plastic doesn't always mean cheap.

[zforce]

Originally Posted by One Mean Chevy

The name of the forum is: Camaro V8 LS3 / L99 Engine and Powertrain Discussions Discuss V8 engine and powertrain for the new Camaro.

I figured this was a great place to get cold hard facts on the LS3/L99 in the Camaro SS. Information specific to the Camaro's LS3 doesn't say anything about what the intakes are made of. GM could have decide not to use plastic manifolds on the Camaro. As one poster put it, Plastic doesn't always mean cheap.

post what you want. bet you learned something about the use of other material beside metals. some people think it's not real unless they have seen it. you got good information on why plastic was used on the intake. that was your goal to begin with. the only sensless question is the question you did not ask (in these cases post).

[TomServo]

Geez, it's NOT PLASTIC it's a COMPOSITE. If your a Chevy fan seems you should read up on the tech in these motors. Of course folks still think the Corvette is fibreglass. So go figure.

[Supermans]

I can't believe this topic is still being discussed...

[MLL67RSSS]

Originally Posted by zforce

LOL TRUE TRUE TRUE. I feel for him. What next? Be upset that mail slot scoop in not operational?

Originally Posted by zforce

What do you think about the ceramic composite brake disks that are on Corvettes that have a top speed of 200 miles an hour? You think they should be replaced with cheaper material like steel? I guess you haven't seen what happens to these brakes when they are driven hard on the 24 hours long race (forget the name of the race). The steel disks actually melt and forge together with the calipers. That is why they changed them to a ceramic composite material which dissipates heat way faster.

Since you're such a helpful guy thought I'd help you out, fixed it for you.

[Rogue Leader]

Originally Posted by MLL67RSSS

Since you're such a helpful guy thought I'd help you out, fixed it for you.

You missed the "melting and forging together" part that I nailed him on before... lol!

[TomServo]

http://www.gmhightechperformance.com...e_manifold.htm

[Shifty 6]

This has been good information. The engine block is still metal though right?

[CamaroSpike23]

Originally Posted by headpunter

Plastics deteriorate when exposed to ultraviolet radiation, so unless your driving without your hood on your camaro then it wont make a difference

i drive without my hood... at the track.... lol but then again, I have a cast iron intake manifold....

Originally Posted by haulass350

pretty much nothing likes nitrous backfires.


i used to have a picture where a guy blew his aluminum intake into about 4 pieces from nitrous

was it a sheet metal aluminum intake? or a cast/forged aluminum intake?

Originally Posted by DGthe3

As you know by now, plastic gears are essentially useless.

werd.... check out the 4th gen trans am headlights....lol

Originally Posted by Dragoneye

"Normally" is a relative term...because you just found out about this recently, right? There's been plastic manifolds on LS1s, for instance, since 1998...relatively speaking, plastic intake manifolds aren't a new thing - and they seem to be holding up pretty darn well.

Luckily...an intake manifold doesn't spin real fast or tear down trees -- it just routes air. You could probably make it out of glass if the ride wasn't so jarring.

actually, there's been composite (better term instead of plastic lol) intake manifolds on LS1s since 96/97.... (remember, they came on the vettes first)

and actually, ive seen single runner carbon fiber intake manifolds .

check out this W-9 motor....lol
http://www.atomracing.se/

Originally Posted by zforce

well not completely useless. I have a Remote Control truck that has plastic gears and they worked for a few years.

and how much power is getting applied to those gears? not a whole lot compared to using the same gear in a car.

Originally Posted by Dragoneye

I see. Still you're tensioning and moving things. Intake manifolds just sit there. They offer zero structural support, and they aren't under any real stresses.

Also, bear in mind; not all plastics are created equal. There are some that can repel bullets, and there are some that would break if you farted on it. The plastics they put on engines is high-quality stuff.

actually they do suffer under some stresses, vacuum pressure from the motor does put minute stress on it, but its been developed to withstand that. and if you've ever run nitrous or f/i on it, that adds stress, but still, they are some damn good composites.

Originally Posted by Shifty 6

This has been good information. The engine block is still metal though right?

no, actually they changed it to a carbon fiber design to reduce on weight....



yes its still metal.