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This is why i am having second thoughts about putting nitrous on my 7th gen civic. I was talking to a guy about a 50 shot in my civic and he said he has a homie w/ a 7th gen, added a 50 shot and the plastic intake mainifold went KA BOOM. I really need some cheap boost...but now i seen this i need you guys to convince me more LoL





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I don't get it. Plastic intake manifold ? Last time I looked, my intake manifold was very much alu/metal and not plastic. But then again, I could've been looking at something different. I just started with this Honda stuff

 
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Those pics look familiar...... is this a re-post?

 
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I dont blame you man, I would be too. But there are a few members on here that are running a 50 shot without any trouble at all. Hard call.

Deejai35: Yes these pictures have been posted a few times before.

 
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it's a matter of time, if it was possible to run a 10 shot, it's still hard on the engine. N20 will always degrade the engine, it's just a matter of time before you see the effects

 
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IT is a wonder that he found all those small pieces what was he going to do glue it back together????

 
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The kid was a morin and shot it in 1st gear. BTW old news.

 
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Yup plastic, and its better. Its a wicked hard hard plastic, and sometimes it is hard to tell if it is plastic. The reason they do it is because the plastic will not heat up as much as metal does, therefor keeping your engine a little bit cooler. And also it keeps the cost down with it is in production. I think some of the older versions of civic's and del sols have the same manifold. Also VW has the same design.

The kid who blew it up was a morin, shooting the n20 in first gear. Prolly shot it to red line, cause the fuel cutoff to kick in but kept on spraying and surged the n20 into the intake and conbusted. 50 shot wet is safe as long as you know how to use it, when to use it and if you have the proper engine mods.

 
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Then why do they make aftermarket intakes outa aluminum[IMG]i/expressions/face-icon-small-confused.gif[/IMG]

Also, with VW, are you refering to the stuff on the exterior of the block that makes it black? Because if so, that stuff you see is some kinda rubberized plastic just to dress the engine up, it has no benefits other than looks. If you are referring the the actual manifold though, then forget what I'm rambling about because I have no idea then[IMG]i/expressions/laugh2.gif[/IMG]

 
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The metal is just for looks. AEM and INJEN may be good, but Iceman is alot better, and from I am seeing I think the new K&N's are plastic just like Iceman. To test this theroy, if you know anyone with a iceman go driving on a hot summer day for a hour, pop the hood and feel the intake, it will be warm, but not hot. Now do the same with with a AEM type intake for the same amount of time, and it will be real hot, somtimes you wont be able to touch it. Now imagin all that hot air going into your engin [IMG]i/expressions/face-icon-small-wink.gif[/IMG]

As for VW I am refering to the actual manifold, not the rubber crap.

 
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Yes, this is a re-post. Still interesting though. This is the danger when you mix fuel and air before the combustion chamber. A nitrous fogger whose tip is inside the combustion chamber would be the safest way to go. Also the most expensive. I guess the saying, "You get what you paid for." applies here as well.

 
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at least the intake is still in tact for the most part.

 
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true, but what good is that if he has nothing to connect it to? [IMG]i/expressions/face-icon-small-smile.gif[/IMG]

 
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Then that is true regarding ANY aftermarket item used to enhance the horse power of a stock engine. Do you honestly think that manufactures make their engines to handle only the stock output, NO. Sure certain parts need to be upgraded as you go but to make a blanket statement like that is silly. Done right, used right, a nitrous engine can last as long as the car does. You have to know the potential and ability of your engine and it’s parts, not just guess at what it can and can't handle by what you read in a magazine or read on some forum on the internet (especially those not dedicated to nitrous, yet love to give nitrous "info"). Hand’s on experience and know-how can go a long way when dealing with nitrous. Degrade?? Please, nitrous problems are either solenoid/fuel system malfunction (not nitrous related), installation problem, or the most common - USER ERROR!!!

 
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there difference is the "intake" people say is really just the initial piping. the intake manifold is a seperate part altogether

 
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...or as I put it from the original post:

 
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where is the metal plate that fell off the floor?

 
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What the intake is made of isn't really of much importance if you ask me. Yea, of course the metal will be and will remain hot and hotter than plastic. But how much does the tubing's temperture actually affect the temperture of the air being drawn into the engine? I can maybe see some stagnant air rising in temperture while the engine is idling for an extended period of time but not while the car is moving. Seems like the air would be drawn through the pipe and into the engine at such a fast rate that the pipe's temperture wouldn't have the time to affect the temperture of the air. The air simply isn't in the tube long enough.

 
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Right. That's what I heard. Supposedly the air isn't in the intake long enough for the intake's temperature to affect it.

IronFist

 
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Here is the VW intake manifold (the 4 silver pipes) as much as VW would like you to think they are metal, they aren't. They're made out of a hard plastic resin.

 
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How do you think an Intercooler works??

 
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With a bunch of tiny tubes that equate to a tremendous amount of surface area for the air to contact. How much of the air going through a 3in diameter tube do you think is actually contacting the metal? Not very much if you ask me.

Oh, and welcome to the board.

 
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Then why would it be so vital to place the cooler in the open air dam? So that all that tubing can stay cool. Do you honestly think that the air coming through your intake tube doesn't touch the inner walls (even in the 3" ITR tube - the Si's have a 2 1/2" tube). The air flowing inside the tube is certainly effected by the tempature of the tube itself.

 
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air is a medium for heat tranfer duMAAss

 
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that sucks....

 
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What are you trying to say LIckwilly?

 
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using nitrous in first gear has nothing to with why his manifold exploded. Yes jumping off the rev limiter could have caused it, but unlikely.

A couple reason could have cuased this nitrous backfire.

one is not enough octane in the fuel, causing detonation

two is too high a shot....shooting 75 and higher can be dangerous if not enough fuel is added.

Three, he was running to rich and the fuel from thw wet shot was puddling in the manifold and then ignited cauing the manifold to explode

four too much ignition timing or not using colder range plugs