View Full Version : Intakes For 2.4l
rogan19
12-21-2005, 07:55 AM
i have a 2001 4dr 2.4L how do i know which AEM SHORT RAM INTAKE to order which will fit my car anyone got Part # ?
ptrudel
12-21-2005, 08:26 AM
a Cavalier Z24 short ram will work perfectly :)
rogan19
12-21-2005, 08:29 AM
i search the zz4 2.4 Right?
rogan19
12-21-2005, 08:33 AM
any install tips what about the mass air flow sensor?
ptrudel
12-21-2005, 09:12 AM
Originally posted by rogan19+Dec 21 2005, 09:29 AM--><div class='quotetop'>QUOTE(rogan19 @ Dec 21 2005, 09:29 AM)</div><div class='quotemain'>i search the zz4 2.4 Right?
Quoted post
[/b]
yes
<!--QuoteBegin-rogan19@Dec 21 2005, 09:33 AM
any install tips what about the mass air flow sensor?
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[/quote]
its pretty straight forward...just make sure you put the sensor back in(there should be a hole for it in the intake tube) and away ya go
Fast Eddie
12-21-2005, 11:44 AM
Originally posted by rogan19@Dec 21 2005, 07:33 AM
what about the mass air flow sensor?
Quoted post
There isn't one. The sensor in the tube is an air temp. and there should be a spot to put it into the new one. Just shove it in there, carefully.
rodney
12-22-2005, 03:27 PM
is the intake tubing on the AEM 3" or 2.75" in diameter?
Spilner521
12-30-2005, 04:01 PM
2.75"
99alero_dude
12-30-2005, 04:29 PM
I made my own intake out of frustration and didn't like ebaymotor's cheap ones. Instead of just removing the airfilter box, I took out everything leading up to the butterfly valve, and just ran a 28in black flexi-tube and put a cone air filter at the end. I found out i couldn't leave the sensor in the elbow unplugged, so for now i kind of just have that plugged into the elbow and the elbow tucked away above the radiator. Kinda ghetto but it has a beautiful growl past 3500-4000 rpm under moderate to hard accerlation.
I'll upload a pic in a few minutes.
http://img492.imageshack.us/img492/2281/imag00011pi.jpg (http://imageshack.us)
I accidently didn't get where the tube connects to the engine :-/
You can see where i have the temp sensor left in the elbow... car went apepoop when i unplugged it...
[img=http://img492.imageshack.us/img492/5292/imag00023ae.jpg] (http://imageshack.us)
another angle
http://img492.imageshack.us/img492/5292/imag00023ae.jpg
2fst4u
12-30-2005, 11:18 PM
let me get this right, you didn't like the cheap ebay ones, so you made a ghetto one out of dryer vent? you would have been better off with an ebay one. would look a lot better bud.
99alero_dude
12-30-2005, 11:24 PM
cheap ebay ones didn't replace the two restrictive resonator boxes, after the rubber elbow. the flexi tube was $19.99 at autozone. i don't care if it looks like poop, if it works as good as a pretty looking one i'll go for it.
Vtolds
12-30-2005, 11:26 PM
Mine was a Ebay intake for the caby Z24. It worked fine, no problems with it.
Oldsman
12-30-2005, 11:42 PM
well it will work but not much more effecient than the stock box with the ebay intake.
but to each's own
jlenko
12-31-2005, 12:04 AM
If that engine is otherwise stock.... it's an improvement over the stock (restrictive) intake. It's probably the worst possible intake you could have... all that turbulence.. you want SOME turbulence in the intake to mix with the fuel, but not that much. That's rediculous.
As I said... on an otherwise stock engine... it's probably just fine. Until you get a full exhaust and start thinking about a larger TB or head work, it'll do the trick.
Originally posted by jlenko@Dec 31 2005, 05:04 AM
If that engine is otherwise stock.... it's an improvement over the stock (restrictive) intake. It's probably the worst possible intake you could have... all that turbulence.. you want SOME turbulence in the intake to mix with the fuel, but not that much. That's rediculous.
As I said... on an otherwise stock engine... it's probably just fine. Until you get a full exhaust and start thinking about a larger TB or head work, it'll do the trick.
Quoted post
why? this isn't a carbeurated motor... the fuel injectors do a damn fine job of mixing the fuel w/ the air... You're missing something here, definitely... you want smooth flow, and proper sizing to create velocity not turbulence...
yikes, what's going on over here? If you want turbulence go get a tornado and tell me about those wicked gains and gas mileage improvements.
UnoWHO
12-31-2005, 11:44 AM
Well on this topci but not what you guys are tlaking about but here a question.
Has anyone who has the Induction Dynamics intake replaced that black elbow that connects the intake to the Throttle Body? Seems like that elbow is restricting air like a female dog? anyone?
Fast Eddie
01-03-2006, 10:05 AM
Originally posted by Spy+Dec 31 2005, 05:09 AM--><div class='quotetop'>QUOTE(Spy @ Dec 31 2005, 05:09 AM)</div><div class='quotemain'><!--QuoteBegin-jlenko@Dec 31 2005, 05:04 AM
If that engine is otherwise stock.... it's an improvement over the stock (restrictive) intake. It's probably the worst possible intake you could have... all that turbulence.. you want SOME turbulence in the intake to mix with the fuel, but not that much. That's rediculous.
As I said... on an otherwise stock engine... it's probably just fine. Until you get a full exhaust and start thinking about a larger TB or head work, it'll do the trick.
Quoted post
why? this isn't a carbeurated motor... the fuel injectors do a damn fine job of mixing the fuel w/ the air... You're missing something here, definitely... you want smooth flow, and proper sizing to create velocity not turbulence...
yikes, what's going on over here? If you want turbulence go get a tornado and tell me about those wicked gains and gas mileage improvements.
Quoted post
[/b][/quote]
The injectors do not create turbulance, they just spray fuel. And yes you want some turbulance, but that usually has more to do with the head than the intake. Too much velocity and you get reduced performance in the form of running rich due to poor combustion. The air moves through the CC too fast and cannont fully burn.
AlbinoMonkeyRat
01-03-2006, 12:23 PM
Robot arms are not good for intakes. And you paid $20 for it? for $5 more, you could have had a much nicer looking and more efficient intake (I only paid $25 for mine!)
Think about it dude. if you're gonna do something, do it right...and try to do it the first time. ;)
Oldsman
01-03-2006, 09:42 PM
Originally posted by UnoWHO@Dec 31 2005, 10:44 AM
Well on this topci but not what you guys are tlaking about but here a question.
Has anyone who has the Induction Dynamics intake replaced that black elbow that connects the intake to the Throttle Body? Seems like that elbow is restricting air like a female dog? anyone?
Quoted post
actually no it does it. the volume of the area is the same as a 3" 90 deg elbow. and the inside is very smooth and not restrictive. it just gives more clearance for the j-body.
Induction dynamics does a lot R&D and flow tests. no worries, mate.
Spilner521
01-04-2006, 01:49 AM
Originally posted by Fast Eddie@Jan 3 2006, 10:05 AM
The injectors do not create turbulance, they just spray fuel. And yes you want some turbulance, but that usually has more to do with the head than the intake. Too much velocity and you get reduced performance in the form of running rich due to poor combustion. The air moves through the CC too fast and cannont fully burn.
Quoted post
the injectors do spray fuel, but they spray it in such a pattern that it mixes well with the air, and creates very good combustion. it is in the head where the air/fuel mixing happens, but you dont reduce performance with too much velocity. think about it...the quicker and faster you can get air into the combustion chamber, the easier the engine has to work to suck it in. less work = better performance. you wont run rich with greater velocity either. with greater velocity, you're getting more air into the cylinder. if anything you'll run too lean for a fraction of a second (not even long enough to notice) while the O2 sensor senses more oxygen in the exhaust and ups the fuel on the injectors. more air + more fuel = more power....this is the point of an aftermarket air intake. and the air cant move thru the combustion chamber too fast...when the intake valve closes, the cylinder is sealed and the air cant move at all.
99alero_dude
01-04-2006, 04:35 AM
Yeah after all these put downs on my ghetto-take, I've singled out a few good air intakes, and do plan on replacing that one in the near future after I get done with the exhaust system.
That flexi-tube is also designed to fit at the end of that cone air filter (has an openning at the top). If I replaced the intake, with a nice Z24 one, and remove the air chamber that's below the battery by removing the bumper. Then lead the tubing down there to maybe an openning in the front or below the bumper so that the car could also get some RAM/colder air and just run the flexi tubing into the top of the filter? I'm sorry if this seems vague but it's wherethe Induction Dynamics cold air intake's filter is placed, if that clears things. I just don't want that $20 tubing to go waste pretty much.
But also if I managed to all of that, it'd probably just be easier to get one the intakes so that the filter designed to fit inside that part?
Fast Eddie
01-04-2006, 12:33 PM
Originally posted by Spilner521+Jan 4 2006, 12:49 AM--><div class='quotetop'>QUOTE(Spilner521 @ Jan 4 2006, 12:49 AM)</div><div class='quotemain'><!--QuoteBegin-Fast Eddie@Jan 3 2006, 10:05 AM
The injectors do not create turbulance, they just spray fuel. And yes you want some turbulance, but that usually has more to do with the head than the intake. Too much velocity and you get reduced performance in the form of running rich due to poor combustion. The air moves through the CC too fast and cannont fully burn.
Quoted post
the injectors do spray fuel, but they spray it in such a pattern that it mixes well with the air, and creates very good combustion. it is in the head where the air/fuel mixing happens, but you dont reduce performance with too much velocity. think about it...the quicker and faster you can get air into the combustion chamber, the easier the engine has to work to suck it in. less work = better performance. you wont run rich with greater velocity either. with greater velocity, you're getting more air into the cylinder. if anything you'll run too lean for a fraction of a second (not even long enough to notice) while the O2 sensor senses more oxygen in the exhaust and ups the fuel on the injectors. more air + more fuel = more power....this is the point of an aftermarket air intake. and the air cant move thru the combustion chamber too fast...when the intake valve closes, the cylinder is sealed and the air cant move at all.
Quoted post
[/b][/quote]
The fuel injectors just spray atomized fuel so that it is easily mixed with the air it does not do it in any special patter. The head provides the swirling effect upon entry to the CC, typically. As for velocity affecting performance. Your comments would conflict with what many shops have told me. The higher velocity forces more air OUT of the CC b/c of the valve overlap on the intake stroke. The air can move too fast b/c it will flow right out the exhaust valve b/c its not completeley closed when the intake stroke starts. That is why doing head work on a flow bench is so important. To much velocity you start to lose power, too little and you start to lose power. This increase in uncombusted O2 coming out the exhaust valves will show up to the O2 sensor as an incomplete burn and the system will increase the fuel to try and achieve what it thinks is complete combustion and bring the system back to stoich.
The point of an aftermarket intake is to help the flow a bit but its really to increase the O2 density of the incoming air. And there ain't nothing wrong with ghetto as long as it workd ;)
Oldsman
01-04-2006, 10:50 PM
for turbulance to really work good on our cars it is in the head not going into the intake. turbulance in the air before the injector like intake will slow down the air speed.
one way that old time drag racers and nascar engine builders use to do is on rectangle ports they would leave the corner ruff and polish the flats that way it creates enough turbulance to create an inner flow and you get good air and fuel mix. but things have change the old way still works. i used some of that on my head. velocity is important but so is volume. with injectors the amount of turbulance that was required on the old v-8s is not needed. some is good.
but like eddie said with cam overlap, which is normally 100-112 deg, air would escape out the exhaust side and you would not have as much air in the clyinder as you think being no benefit.
Oldsman
01-04-2006, 10:51 PM
And there ain't nothing wrong with ghetto as long as it workd
this is a very true statement. may not be the best.
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