Wassup maxima.org I'm fairly new here but I've had a 5.5 maxima for over a year with bolt ons. I'm looking for more power without going forced induction and I was thinking about doing a 09 manifold swap to the 5.5 gen. I tried Google but nothing is coming up relating to it. Has it been done before? Is it a bolt on? And is it worth it? Thanks in advance!

 

you will also need the lower intake manifold because the holes are square not round, you will have to port the heads to match. Check the all motor forum,. it's been done

 

I was snooping around the all motor section I didn't find anything on the composite manifold but I did see the 350z manifolds but it just wasn't detailed enough. Is this a direct swap?

 

Anyone??

 

ask Suratt, he has done 09 to 02 complete engine swap and he explored many options with it

 

u can contact ranmus as well i believe he has a write up on here about it

 

The info is buried in here: http://forums.maxima.org/nitrous/614...out-doing.html

 

Thank you fellas!

 

I did a 350Z IM [upper and lower] swap (+1/2" Motordyne thermal spacer) on my 02. It is a bit involved, but definitely makes power. Before you ask, no, I have not been to dyno [yet] to confirm how much I am making. Let me know if you want more info.

 

I'm interested in the swap. Wat modifications do u have to do to make it fit. And do u have to port match the heads. We'res it making more power?

 

I would definitely like more info. I've been through the threads and theyre not detailed enough! Do you think its possible to use the cosworth intake manifold?

 

the manifold I have was designed to fit the 02-03 lower manifold. Its not an 09 manifold so I dont have any writeup about this. Check Surrat's forum on his 09 swap in the all motor section. Like Knight said, you will at least need an 09 lower manifold. You will also need a diagram to wire up the 09 TB with the 02-03 maxima ECU (check my all motor build thread I wrote that up)....you cannot put an 02 TB on an 09 intake manifold...(75mm vs 70mm). So plan on buying an 09 TB as well.

 

If you are familiar with the RWD IM, you'll notice right away that the elbow on mine has been cut/modified. Different people have added a 350Z IM in different ways, which you can read about ("see") here:
http://forums.maxima.org/all-motor/3...wd-maxima.html
http://forums.maxima.org/all-motor/5...cs-inside.html
http://forums.maxima.org/5th-generat...-manifold.html

My project consisted of the following:

• 3/4" engine + transmission drop to maximize hood clearance
• ES motor mounts + other bushings
• Z-Tube
• Modified upper plenum / MREV2 lower plenum with Motordyne spacer (more on this in a second)
• Technosquare F-Spec reflash (purchased from Gemner)
• 350Z valve covers (due to oil filling)
• Battery relocation for airflow path

I purchased a set of 350Z LIM spacers from Aaron, and did not do any porting or polishing work. That may be something for the future.

I had a local machine shop grind down the tops of front/left (rwd/fwd) two cylinder runners (4+5 mm) to create the MREV2, as well as cut and "re-angle" the elbow on the upper plenum. I had planned to use a 5/16" isothermal spacer, but an issue surfaced when I was installing the upper plenum. Specifically, the TB had clearance issues, either the hood or the fuel rail, depending on its rotation. So, I went to the 1/2" spacer and - voila - problem solved. (Note: this was only a problem in my case because of how I modified the neck - it could have been avoided.) And there is a bit different power delivery/more peak gains than the 5/16" spacer (personal experience in my dad's G35 with a 5/16" spacer). You can also read about the differences on 350Z or Motordyne's website.

This is not a simple bolt-on mod, nor one for the fain of heart. We had to trouble-shoot issues as they surfaced (clearance, battery, etc.). But the result are worth it. I do feel like there is a little bit of a delay on WOT due to the larger plenum volume, but that also gives you more mid and top-end power. The F-Spec also helps (or anything that can extend the redline). Also, from in the cabin, there is are markedly deeper+louder induction growl that still makes me grin every time I get on it

I have been waiting to dyno until I install a Fidenza FW, which I will do when I need a new clutch. As I live in Germany, I don't drive the Max more than 4-6 weeks a year, and I am not around all that much. Oh, and I bought an Ultimate DIY Machine (E39 530i) over here last November, so that is sucking up time, love and money, too.

 

It's a little involving but definitely not hard I will be trying this. How do you think this manifold will perform with boost and cams? Thanks for the information really appreciated! Keep us posted on the dyno if you end up doing it!

 

Thanks for the info. I just picked up a complete 2003 350Z motor and was thinking about how to do this. The motor is shot but all the parts are there. It even has a plenum spacer but I haven't measured it.

I work part time as a mechanic but still had a few questions. This pretty much answered them all.

 

FWIW I proved you can run a 09 TB on a 02-08 VQ35 UIM by redrilling the TB and boring out the UIM neck. (see all motor section)