I know the details about the 05-07 manifolds. But I also have seen positive feedback on the 08 style manifolds. So I decided to go ahead and buy the 08 manifold with income tax. I received the manifold this past Saturday. Below are some of the pictures of the manifold. I took pictures of distinct features that stuck out about the manifold. I am still waiting for my brake booster hose, throttle body gasket, and the seal that goes in-between port 2 and 3. When I pull the old manifold off I will also take pictures to compare the two.


Front

Side

Back

Port 4

Intake interanl 1

Intake interanl 2

 

Kind of change of plans. The manifold is still going on just not at this moment. Because of school, I need a special project for my Automotive Engineering course (Undergrad/Grad special topic class). I plan on building a homemade flow tester. The purpose is not to find the CFM of the 2.4 manifold. I want to compare the two under the same conditions. I plan on setting up a shock vac and a DC power supply with a potentiometer to regulate voltage and flow of the shock vac. I am not sure what I am going to use to measure the flow at the moment. I also need to figure out a way to direct the air going into the intake side and air coming out of the ports of the manifold. For the intake side I am thinking of taking a used throttle, bolting it to the top, and forcing the butterfly in the open position. Than I plan on taking my Injen intake (not full length) and force the air thorough there.

The reasoning behind my madness is to verify the dead spot in the 2.2 manifolds (will be hard to simulate exactly, because I do not know the parameters of the air entering with the engine at 5000~5500 rpm's.

I still need to work out the bugs before I doing any fabrication. But any feedback would be great.

Thanks,
Brad

 

I guess nobody else has intuitive mind to try something different.

 

that manifold will help low end for top end you need the 2007 2.4l with the larger runners to help 5000rpm and up i've had both and thats what i noticed

 

Sounds good to me, just don't know how I could help you.

 

Def sounds like an awesome project. I would use a system like our mafs to monitor air flow, have 2, one for incoming and one for out going air, also a sensative differental air pressure gauge, not sure if you can get the resolution you'll need, but that's something you have to take into account. As well as use your air psychometrics charts to ensure the atomosphere isn't changing the test results.

 

Not much humidity right now. So I don't believe the Wet-bulb temperature will have that much effect on the testing. I far as resolution goes, I don't have much access to equipment. I want to monitor the air in and out of the system. The only problem that was brought to my attention from my professor is that the air is not continuous. He told me to think about what happens when the intake valves open and close. He said its more of a pulse.

 

But changes in humidity throughout testing could effect results, I have a feeling the differences are going to be very small when tested on that scale. So any little changes in exterior test coniditions could change results (analytical chem background, all my physical chem experiments are coming to mind).

To get past the valve open and closing issue, just block three of the runners and test the one, then go to the next open, so you'll be testing each individual runner.
Do you have access to a higher SCFM vacuum pump? Like a rotary vane vacuum pump, using a vacuum pump would illustrate what actual goes on better than blowing air into the intake manifold, unless you want to see how boost flows through them.

 

Does anybody know the approximate length from the Intake ports to the valves on a 2.2L head?

 

where did u buy it? im having trouble finding a 2.4 IM for my 2.2

 

just put a 08 2.4L on mine and 2.4L tb with a tune and it made a big difference, pulles pretty hard to redline now

 

Did your old crank seal and throttle body gasket fit the 08 intake manifold?

 

Rockauto

 

Current Mods without 2.4 Manifold

 

Update: Swap out the intake manifold last weekend and dyno today.

 

Any idea on the weather conditions each day? That can have a pretty good effect on our little NAs, especially if it's humid out

 

Its really a pretty big difference I think between the 2006/2007 and 2008+ manifolds, especially based on that dyno. Definitely depends on the weather conditions though.

If you had your intake drawing from the fender well too, that will hurt on the dyno as well. I'd be interested to see the difference with the intake set up as a short ram and on a cooler day (if it was humid in the first place). With just a GMPP intake I dyno'd 137whp on a cooler october day, so you should definitely make more lol

 

With a tune you'll be better off.

should build to around 6800rpm.

 

Wait I must have missed a day at school somewhere, there's a difference between 2.4 manifolds?

 

2.2 Manifold 4/6/2013, 3:10 P.M. Weather Conditions, 81 °F, Humidity 51%, Wind 17 mph
2.4 Manifold 4/20/2013, 2:20 P.M. Weather Conditions, 78 °F, Humidity 53%, Wind 8 mph

The intake was pulling air from the fender.

 

Look a the Plenum and Placement of the runners.


There is a cavity sitting right below the lip of the entry point to the runners

 

So just to be sure I have the 2009 LAP 2.2 so I already have the 2.4 intake?

Also what are the differences between 08 and 06-07 2.4 intake?

 

As far as the 2.2 LAP, I have never seen any proof.

Look at the picture below for the difference between the 06-07 and 08 style manifolds

 

cool good to know