emax02

iTrader: (1)

Hello guys I just spoke to Ken from JRnissanparts, he was very helpfull giving me a quick quote and awesome prices. I just ordered all the parts threw him @ 30% off(septemeber special). If you recall the G35 parts where about $580, the same parts are about $450 threw him.

They should be arriving in about 1.5 weeks. At that point I am going to keep my fingers crossed and hope they fit. They should I'm almost positive of it. Then I will head to the dyno and pray for some nice gains, hehe.


I will keep you folks updated!






















Can you say 250 FWHP NA?

Blu

iTrader: (63)

this guy needs a COOKIE for all his creative ideas

SR20DEN

iTrader: (7)

As we discussed Ethan I am 90% certin it will fit. Just make sure you get me tons and tons of pictures because I need that data.. hehehe

Y2KevSE

iTrader: (13)

+3 hp at the wheels. Hehehehe

emax02

iTrader: (1)

Better not be..

Kojiro_FtT

I'm confused... 4th gen Max's wanted the variable intake from the Cefiro for the hp increase... now the 5th gen has it and we are trading it out for a non-variable intake from a Z?

I know I have this wrong, can someone clarify?

Tallyman

I am anxious to see how you make out emax... Hey if you need some help with the swap, I wouldnt mind helping you out with it... You live near MA right.. Also if you need some tools, I got tons... Just let me know...

STEVE

SR20DEN

iTrader: (7)

People trade their intakes for the VI to have the best of both worlds (low end and high end tuning). The VI (VQ30 VI) has a much better top end on it than the VQ30 normal intake. In this case Ethan and I believe that the Z intake, although not a VI, has a much better top end on it than the VI that we currently have. It's all about the end results. He is willing to trade in some low end grunt for a hefty top end hp gain. Thats the plan anwyays.

emax02

iTrader: (1)

Yep got more then enough low end all ready While racing 4.8K RPM is my low end.

Kojiro_FtT

Hmmm... if that's the case, you guys will be my hero. I'll wait to hear the results though...

MAX2000JP

Sounds like a good mod. I dont know if it will get you close to 250WHP, but it should get you around 240

Tallyman

Still I dont think its too bad 20+whp for about $450... Exhaust will run you more for less gain...

MaxSE2k

Can you re-post what the parts were that you were getting? Is it just the intake manifold & injectors?

IceY2K1

iTrader: (3)

Are you sure you didn't accidently buy a Max, because you got the ***** of a Honduh owner. I swear those guys are crazy spending $20K+ on a $5K car.

Anyways, it's guys like you, Kev, MardiGrasMax, SR20DEN, and others who PIONEER this hobby of ours.

Keep it up!

emax02

iTrader: (1)

The parts are listed in the last thread I created on this topic which can be found hear: http://forums.maxima.org/showthread....light=manifold




IceY2K1, lol you cracked me up

DrVolkl

You da man. This will be very INTERESTING. Think the CPU will handle it? I hope you don't lose too much down low...

Y2KSESteve

iTrader: (22)

Thats awesome emax. I hope it works out for you!

bill99gxe

iTrader: (1)

Pardon the French, but ethan has ***** of steel.



Good luck in the endeavor.

mzmtg

iTrader: (11)

So, what about hood clearance?

Menasor

iTrader: (2)

Wow, you don't waste any time do you? Good luck with this and I hope everything goes smoothly.

Triple8Sol

iTrader: (29)

First the taillights, and now this? :awe:

asu174

iTrader: (11)

You waste more money on mods than I do. That's just nuts.........

dmbmaxima2k2

iTrader: (1)

good luck ethan, i want to see this let me know when your gonna do it and maybe i can swing by to watch and help so when i do mine it works out ok

-steve

Matticus

I wonder, are the heads swapable too, or they could just be the exact same? They could have smaller combustion chamber, high flowing I/E ports. Might as well go real crazy. Heads should only run about 2k or so. j/k

96sleeper

iTrader: (4)

didn't the 350z dyno in the 240 hp range in a recent magazine? I thought it also had different cams and a more header-like exhaust than the maxima. I remember the graph of the dyno looked exactly like a 4th gen max curve until about 5600-5800rpm, the the hp started going up again really steep, so something is happening right there at that point. I guess hopefully that is what resonance the intake is tuned for and you will see some gains. I am with Kev though...3hp.

emax02

iTrader: (1)

Ya 3 HP dude.. I mean thanks for rooting for me.. if you knew anything about 2002's and how they breath you would realise that the engine chowks big time at 5800 RPM. The motor shreaks as it trys sucking air in it can't find. But ya again thats cool I hope your gut fellings right.. And ohh what exactly is a more header like exhaust?

And also the Z "heads" and "cams" are identical to the maximas..I have a very high flowing exhaust and intake at the moment and the Z's motor is the same as mine(and all 3.5 VQ's for that matter). theres only 2 places left where the other 28 WHP is. Thats #1 the intake manifold and possibly( although I highly dowt it) the ECU.



DrVolkl, I see no reason why the CPU wont handle a new manifold considering nothing electronical is being controled by eitehr intake manifold. Only difference is the MAFS will read a higher amount of air traveling into the motor. And luckily our MAFS is the same as the Z's. So again there wont be any problem there.


Matticus, Heads and all are exactly the same.


mzmtg, you brought up a intersting point. "The hood clearance" It is my only concerne at the moment. Worse case senario is I will have to have a scoop put on the hood. But in all likely hood I expect it to fit.



And thanks for your kind word and supports guys.

SR20DEN

iTrader: (7)

Yes the 350Z dynoed about 244 stock and then 249 with 100 Octane gas.

No the 350Z has the exact same cams as the Maxima. You can easily verify this at your local Nissan parts department. Dave B did and so did I.

The exhaust manifolds on the Z do appear to be better than the Max but probably not more than a few hp worth.

Yes thats because it has a standard type manifold. It wont make as much low end torque as the Maxima but is able to breath a whole lot better on the top end. Thats exactly why Ethan is doing this project. And if you don't think an intake manifold alone can add heaps of top end HP then you should argue with Sprintmax about it for a few hours.

Im not sure there is alot of resonance designed into these things. The intake tracts between each port is too long between each other to get good sonic backwash between inlets. But the size, shape and length of the intake runners does greatly effect the air velocity and mass flow of the inlet air. Most engineers accept that 650fps is about the max that you will get the air velocity upto in an intake passage before forced induction. Once you reach that point you will need to make size and or length changes to increase the air mass flow to make more hp. If you go too low on the max velocity
you wont have as an efficent an engine. You always want an intake to get as close to that number as possible on the high end becasue the inertia of the air actually can over fill the combustion chamber from what it normally would be.


Thats fine, you can be with Kev on this one but keep in mind he was only joking. Are you joking too? I hope so becasue a guess of only 3hp sounds very pessimistic and a bit uneducated.

IceY2K1

iTrader: (3)

Now that's hitting below the belt.

96sleeper

iTrader: (4)

I was joking of course, apparently people in the 5th gen forum don't know me very well. I am totally behind emax and hope this turns out to be a great mod. I like it when people try new things and don't listen to the crowd, because people on this board can be very pessimistic and tell you new ideas don't work. The reason I sound uneducated is because I have been busy and not followed the 5th gens lately. Last I heard people thought they had different cams and/or variable cam timing on the exhaust side as well as the intake side. I was unaware that all the parts checked out the same.

asu174

iTrader: (11)

What is the net hp prediction on this? 8? 10?

SR20DEN

iTrader: (7)

Sorry about that. I wasn't trying to flame, only trying to cover as much info as possible in one lump sum. I just threw that one in for a few giggles.

ABS

Is the compression ratio the same too?

KLOOGY

iTrader: (12)

I amk not an expert on the VQ, but due to my work on LT1's and 302's....I just think the HP gains on the Z are from a cobination of Manifold and ECU changes. I have a feeling most of it comes from the ECU . Look at the design of both manifolds.. I might be wrong, actually I hope I am .

emax02

iTrader: (1)

15-20 FWHP is my esitmate. Who knows though. If I am wrong then some huge gains can be expected form a simple ecu modification( I dont buy that idea though).

asu174

iTrader: (11)

No kidding? Pardon my naievity on this one if it has already been answered, but are the 2K-2K1 maifolds the same as the 2K2s...?

I'm next in line for this mod if you net 10 hp+ at the wheels.

MaxSE2k

Maybe if we get enough people performing this mod - we can get Nismo to brand it as one of their own and have the Nissan warranty honor it

Black VQ

You guys said the 350Z didn't have any gains from the cams, because the parts are the same. I got that part.
My question is...Some other magazines had said before they drove the 350Z that the power difference would probably come from using the CVTC on the exhaust cam as well. The Maxima, Altima and G35 are just supposed to have CVTC on the intake cam. Does anyone know if Nissan really did this or not? It might be working in combination with the manifold for that top end power you guys were talking about. Just a thought.

emax02

iTrader: (1)

The 350Z does not have CVTC for the exhaust. It is mechanicaly identical to the maxima except for the intkae manifold and of course exhaust.


asu174, this definatly wont work on 2000-2001's. You guys use a throttle cable, 2002 + does not. We have a electric drive by wire throttle. This allows us to move the TB any where and just plug the wire into it Incase you did not know the throttle body is going to be moved quite a bit to addapt to this intake.

KLOOGY

iTrader: (12)

It sure will. If a 10-20 HP gain is attained, it would be worth doing it for sure...
Then remove one of your foglights, run a custom pipe down to the opening,, and Muhahahahaha......... Ram Air baby !

SR20DEN

iTrader: (7)

The CVTC device is only attached to each intake cam but the Exhaust cams are slaved off of them. Therefore the cam timing is changed on both cams at the same time. This is true for the VQ35DE's in all of the cars not just the 350Z.
It was once mentioned that the 350Z was supposed to have a slightly higher valve lift than the Maxima so maybe the journalists got ti mixed up. If the 350Z does indeed have a higher max valve lift then we need to check on the lifter part numbers and see if a difference is there.