Are you guys interested in having a custom intake manifold developed for the VQ30DE Maximas? Especially, if it shows proven gains and a price tag of $495-$595? If you are please participate in our poll, plus a formal response stating your interest specifically.

*also, if anyone can post some good photos of the stock intake manifold, off of the car that would be very helpful.

People Interested:

 

Well of course we're going to be interested, cuz it's a new part with potential for performance gains. What diff does a price tag make at this embryonic stage? All we're going to say is "yeah I'll pay $x if gains are y." Use the Mevi sales as judged by who has them on this Org as a ballpark for what the 4th gen community will expect for $4-500 mods.

how's the turbo kit coming along?

 

An intake similar to the 5th gens in performance with gains both low & high would be welcome. It's gotta work with the 4th gen modded ECU's and prefferably all the other stock 4th gen pieces.

 

count me in and keep me updated !

 

Hey CC! Congrats on your maxima of the month recognition!

btw, got your phantom grip yet?

 

We do not have any maxima's to work off of yet, 4th 5th or 6th generation.

 

A short runner intake for turbo applications would be great. I have a stock 4g Vq40 intake I can send in for prototype, if your interested let me know.

 

Well for the turbo kit perhaps you could purchase a 4th gen and then sell it afterwards? If you're going to do a turbo kit and a manifold, the car you buy serves as the platform for both, no? This way the diff in buy-sell price can be absorbed across the kit and manifold.

 

Mardi where did you find one? Which way is the throttlebody positioned, like the 350z?

 

Yes short runner intake manifold would be awsome.

Questions on adapting, EGR, and the other thing on the intake manifold.

 

what benifits do we recieve from a custom manifold?

thanks

 

yea, something similar to the vq30det manifold with short runners would be great

 

Adapt the characteristics of the 2000 VI into a 4G design and you got something cooking.

 

im asuming this wont be metal like the 4th gen original manifold. i heard the vq30dek manifold helps repel heat due to its material. maybe this manifold should look into that also.

what will this new manifold do tat the old one cant. is it going to be a variable intake, are the chambers going to be bored out?

 

to bad you arent in southern calif i will donate my maxima for the project if you were.

 

why dont you just get a stock intake to work with. if i send you my old intake in to work would that help?

 

Make a TRUE variable intake or an intake like the 350z's and I am positive people will buy.

 

We'll see. I'd like to see a VI that will give better midrange than the JP/ME VI.

 

many good suggestions and i agree with deezo

 

just keep us posted. anything that gives are vq's power for a reasonable price is a sure thing.

 

if it has the midrange of the stock manifold and the topend of the mevi, I'd buy it.

 

^ I want one!!!

 

I would strongly doubt SSR Engineering plans on making a variable style intake manifold because of the massive engineering effort involved. My guess is that they are considering building a non-variable high flow intake manifold that makes the topend power of a variable intake manifold (5000+rpms) at the expense of lowend power. I believe I've seen pictures of their 350Z/G35 intake manifold and it's basically a "ram" type setup meaning it has a simple volume chamber and extremely short runners. This setup is ideal for Roots SCs and turbo applications. This setup isn't ideal for NA motor or Vortech-style blowers that build linear boost in relation to RPM. Below 5000rpms, I'd expect to see a drop of 10-15whp/wtq just like we've seen with dynos of the MEVI butterfly valves being open the whole dyno run.

IMO, the 350Z/G35 stock intake manifold is a trick peice. It behaves like a variable intake manifold even though it isn't (strong lowend, fairly strong topend). It has a special resonance chamber design with crowned runners inside the chamber. It's quite impressive. The only reason I'd use the SSR intake manifold on a 350Z/G35 is if I was boosted with a turbo or Root SC. Otherwise stock is the only way to go.

And before we get ahead of ourselves, the 350Z/G35 intake manifold won't work on the 4th or 5th gen. It's been tried. The shape and size of the manifold doesn't clear a multitude of components (hood, firewall, emissions) due to it's design to fit a RWD car. Emax tried fitting this on his 5.5 gen.

 

How about a custom lower manifold, so we could bolt up the de-K manifold to 4th gens without swaping injectors, fuel rails, etc.

 

Wow. I hadn't thought of that. Great idea. That's probably the best option.

 

is there no more N/A performance ? i know there are still cams, and a few other things, but i pray we could catch a break and have another mod like this. now i dont know cars but what is the extrude -honed thing ? will the same lowend loss show up here also ? i just dont want to give up what lowend i have, but on the other side of things, i run out of breathe around 1/8th with stock manifold.

 

looks like these guys are our best answer to more NA power:

http://www.importperformanceparts.net/

 

so much talk let see what SSR has to offer and btw did anyone supply the pics of manifold yet?maybe they can come up with a solution for both N/A and FI

 

I voted yes but for a custom lower intake manifold that would allow us to use the 5th gen VI without having to swap over the DE-K fuel rail like MAXimunHP already said. The DE-K VI is the best option for all-around performance because it doesn't compromise any part of the powerband, unlike the MEVI or a non-variable intake. The swap just needs to be more streamlined than it is now.

 

pics here but not very good quality

http://photos.yahoo.com/michaelnyden

 

Everyone would be willing to say yes to this intake, thats just common sense. You will have about 500 people say their in, then when production costs get high, or the results arent realistic (i know some people are thinking in the range of 30-40hp) about 3/4 will back out.

I for one am interested in exactly what ceasar is. Extrude/honing of the intake. I remember DaveB, you mentioned something on maximaracing.org about this, care to elaborate on this? I have NO knowledge on this area but i do have a spare intake manifold that i wanna do something with...


I'll support the intake mani, but am not holding my breath. We here at the .org have been let down countless times by vendors...



-eric

 

make one that will pass smog in cali

 

daveb's post:

I've seen the dyno results of Extrude Honing the stock 4th gen intake manifold and the results were pretty impressive, IMO. The manifold gained about 9fwhp/tq from 2500-6000rpms. Seeing that the peak gain was only 4whp, people discredited it. Too bad they don't understand that elevating the power curve is what makes you quicker. I'd venture to say extrude honing the MEVI would reap the same benefits in power. Extrude honing is expensive though, ~$500-600.

dave hope you didnt mind

 

ARE YOU KIDDING!?!??! count me in. that is about the price of VI and i bet it will be easier to intall. if you guys a looking for an intake manifold this guy is selling a used one in his post for $75
here is the link
http://forums.maxima.org/showthread.php?t=319054

 

Thanks for posting that, i do remember that post however...

What i really want to know is how does it work? What is the exact process? Im very interested in this...




-eric

 

here is an article:
http://www.nissanperformancemag.com/...3/projectqg18/

 

I just skimmed over it since i dont really have time. Hmm, seems we *might* need an S-AFC to control air/fuel ratios, which is especially delicate for me since im spraying. Hmmm, i'll have to look into this some more and definately re-read that article completely. Thanks Ceasar....




-eric

 

People did this with the DEK manifold they said it wont fit but something i learned is that the 95-96 max has more firewall to manifold clearence tham any other max . Im talking inches more because of the rake of the winshield if the 5.5 gen max only needed a couple more inches it would fit in the 4th gen then.

 

Keven97SE was the guy. I clearly remember him doing a before and after dyno and the difference in power was quite noticable for such a simple mod. Here's one of his posts, but the dyno plot nor the power numbers are shown.

http://forums.maxima.org/showthread....rude+hone+dyno

Here's his post in the dyno section (192whp/200wtq):

http://forums.maxima.org/showthread....hreadid=135169

Here's a post where he discusses some of his gains and the 8-10whp he saw above 5000rpms:

http://forums.maxima.org/showthread....rude+hone+dyno

Keven was never really happy with the manifold because it only gave him a peak gain of 5whp, the what I saw was a manifold that made 5-10whp/wtq at nearly every rpm plus the manifold was actually able to breath an extra 400rpms with peak power occuring at ~5900rpms instead of 5400-5500rpms. I wish I could see the dyno plot again, but Keven sold his car in early this year and he hasn't posted since 3/04. I sent him an email asking to send me the plot.

Here's Extrudehone's price list. It's a little confusing on what they consider "V6". The price could be any where from $400 to 650 depending on how they'd classify our intake manifold. You only want to send the upper because there is little to be gained in the lower.

http://www.extrudehone.com/price_list2.pdf


Here's a group buy link suggesting that they'll do group buy rates:
http://www.extrudehone.com/group.html

 

Are you saying that the engine bay is different from 95-96 vs. 97-99?