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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 11-18-2008, 06:11 PM   #1
One Mean Chevy
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Unhappy Plastic Intake Manifolds, What THE...

I just found out today thier are Stangs and Explorers with Plastic Intake Manifolds.

Please tell me the V8 Camaro will not have Plastic Intake Manifolds, PLEASE!!
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Old 11-18-2008, 06:13 PM   #2
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Quote:
Originally Posted by One Mean Chevy View Post
I just found out today thier are Stangs and Explorers with Plastic Intake Manifolds.

Please tell me the V8 Camaro will not have Plastic Intake Manifolds, PLEASE!!
Ummm....LS1/2/3/4/6/7 all have plastic intake manifolds. It's a tried and true design. Less heat soak, less weight.... what the hell is the problem?
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Old 11-18-2008, 06:19 PM   #3
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Right now I have a cast iron intake that probably weighs 45 pounds. Plastic is wayyy lighter and so it's better.
It's not like lunchbox plastic, it's designed for use with engines.
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Old 11-18-2008, 06:30 PM   #4
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Quote:
Originally Posted by LSxJunkie View Post
Ummm....LS1/2/3/4/6/7 all have plastic intake manifolds. It's a tried and true design. Less heat soak, less weight.... what the hell is the problem?
Quote:
Originally Posted by TheClassicCarKid View Post
Right now I have a cast iron intake that probably weighs 45 pounds.
It's not like lunchbox plastic, it's designed for use with engines.
But its still Plastic, breaks down with age. I guess I'm going to have replace it with an Aluminum one or keep my engine Ultra clean.

What about the L99?
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Old 11-18-2008, 06:32 PM   #5
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Right now I have a cast iron intake that probably weighs 45 pounds.
It's not like lunchbox plastic, it's designed for use with engines.
So is the plastic used in the LS intakes. It can still handle a ton of power.
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Old 11-18-2008, 07:19 PM   #6
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But its still Plastic, breaks down with age. I guess I'm going to have replace it with an Aluminum one or keep my engine Ultra clean.

What about the L99?
If no one told you they was plastic and in 30-40 years you finally found out, would you still be acting this way? Fact of the matter is they are designed to last just as long or even longer then aluminum. If 10 year old plastic intakes are still like new and are capable of lasting another 20 years without being taken care of, I'm not worried one bit.
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Old 11-18-2008, 07:27 PM   #7
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But its still Plastic, breaks down with age. I guess I'm going to have replace it with an Aluminum one or keep my engine Ultra clean.

What about the L99?

Dude. MY1997 LS1 Corvettes, some of which built in 1996, had plastic intake manifolds. They're holding up just fine.

Plastic breaks down with age.......and in 10 years, you might start to see some of those 1997 plastic intakes wearing out. GM spends billions of dollars in engine design; especially for the engine going in their halo car. I think they've got a leg up on you.

I know a guy with a 1998 C5 with 140k miles on it. 10 years and 140000 miles, and the stock manifold is still going strong. Do you plan on putting that many miles on your Camaro? If not, then stop worrying about it.
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Old 11-18-2008, 07:29 PM   #8
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Quote:
Originally Posted by One Mean Chevy View Post
I just found out today thier are Stangs and Explorers with Plastic Intake Manifolds.

Please tell me the V8 Camaro will not have Plastic Intake Manifolds, PLEASE!!
Man! Where have you been?
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Old 11-18-2008, 07:38 PM   #9
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Quote:
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So is the plastic used in the LS intakes. It can still handle a ton of power.
That's the plastic I was talking about
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Old 11-18-2008, 07:41 PM   #10
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It's plastic. It'll be fine. :slice: GM has put the highest quality parts in this car.
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Old 11-18-2008, 07:43 PM   #11
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Yeah. Nothing wrong with a plastic Intake manifold. it's lighter and makes for better performance.
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Old 11-18-2008, 07:44 PM   #12
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rofl my 97 chevy has a half aluminum half plastic intake, i have NEVER heard of them breaking think your giving it less credit then it deserves, and trying to swap it out to a cast iron one or something would jsut be a waste of time and money
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Old 11-18-2008, 08:32 PM   #13
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wow.....just wow.
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Old 11-18-2008, 10:46 PM   #14
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Quote:
Originally Posted by LSxJunkie View Post
Dude. MY1997 LS1 Corvettes, some of which built in 1996, had plastic intake manifolds. They're holding up just fine.

Plastic breaks down with age.......and in 10 years, you might start to see some of those 1997 plastic intakes wearing out. GM spends billions of dollars in engine design; especially for the engine going in their halo car. I think they've got a leg up on you.

I know a guy with a 1998 C5 with 140k miles on it. 10 years and 140000 miles, and the stock manifold is still going strong. Do you plan on putting that many miles on your Camaro? If not, then stop worrying about it.
Yes, I do. I plan to drive my Camaro until its a Classic.
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Old 11-18-2008, 10:53 PM   #15
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...less weight...

improved, easier design/airflow....

cheaper....

Problem? Plastics don't just deteriorate, at least not in our lifetimes. Especially not ones designed to handle the heat and turbulence of an LS-series engine.....It'll be fine.
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Old 11-18-2008, 10:58 PM   #16
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Only issue I've seen was from a nitrous backfire. Plastic doesn't like nitrous backfires.
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Old 11-18-2008, 11:20 PM   #17
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Plastics deteriorate when exposed to ultraviolet radiation, so unless your driving without your hood on your camaro then it wont make a difference
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Old 11-18-2008, 11:32 PM   #18
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dude...your "plastic" intake manifold, which is a composition of many different materials (not like a McDonalds plastic straw) will last as long as the car will.

I can not believe you are worried about this. Seriously....this is THE best choice.
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Old 11-18-2008, 11:43 PM   #19
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Quote:
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Only issue I've seen was from a nitrous backfire. Plastic doesn't like nitrous backfires.

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
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Old 11-19-2008, 12:21 AM   #20
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We should have a poll and a vote to send to Scott. Act all serious and stuff, he'll think we've all gone nuts wanting to make the Camaro even heavier...
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Old 11-19-2008, 07:00 AM   #21
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Every day I think we have seen every complaint here possible... then someone manages to amaze me and come up with something as ridiculous as this!

Its almost as bad as the guys on the 4thgen sites that are determined to redneck their LS1 cars by removing the emissions, a/c, electronics, etc to "clean up the engine bay" and plan to keep the car forever (because they can do it better than GM... right). Then when the proverbial shit hits the fan and they have to sell their car (inevitable 75% of the time) they wonder why noone will touch their car with a 10 foot pole.
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Old 11-19-2008, 07:18 AM   #22
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But its still Plastic, breaks down with age. I guess I'm going to have replace it with an Aluminum one or keep my engine Ultra clean.

What about the L99?
You know nothing about plastics, I work for a company that makes many different plastics, and the ones used for automotive engine applications are chemical and light resistant to deterioration and will last for many many years, plus if you get a crack in one it can be easily repaired with epoxy. some of the advantages of plastic is, Cheaper to make, Lighter, Better air flow, less heat transfer, all which mean more power developed with a plastic manifold than a equal designed aluminum one.
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Old 11-19-2008, 07:34 AM   #23
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Man! Where have you been?
LOL
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Old 11-19-2008, 08:51 AM   #24
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Lighter weight

No heat-soaked intake.... drive it hard, pop the hood, and you can put your hand on the intake and hold it there.

No more bags of ice on the intake at the track

Been doin' it for over 10 years, welcome back from your exile from wheverever.

I heard you could actually get rid of the fuel injection and put on a carb if you want. Just ribbin' you.
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Old 11-19-2008, 08:53 AM   #25
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I want to say this was introduced with the Vortec V-8's. Could have been before then, but that is when I noticed it on my 96 GMC 1500
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