300zx intake plenum

spoolin03 · 01-05-2022, 01:31 PM

What do some of you think about putting the 300zx intake plenum onto the 370z VQ motor? It has bigger tanks to hold air and longer intake runners to each cylinder, meaning more air that is on standby for demand

is that how it works?

Here are some pics next to a GTR manifold. Found these on twin turbo net

Spooler · 01-05-2022, 01:44 PM

That would be a no. Longer intake runners will reduce midrange TQ. Same thing happens if you use the GTR intake manifold.

spoolin03 · 01-06-2022, 03:27 PM

Quote:

Originally Posted by Spooler

That would be a no. Longer intake runners will reduce midrange TQ. Same thing happens if you use the GTR intake manifold.

I request citations from your lead engineer

Rusty · 01-06-2022, 03:33 PM

On a N/A motor. Long runners for low end. Short runners for top end. It has to do with the velocity and momentum of the air moving through.

JARblue · 01-07-2022, 10:09 AM

Quote:

Originally Posted by spoolin03

I request citations from your lead engineer

Guess you'll just have to take the lead yourself cause that's not gonna happen lol

The stock plastic manifold is pretty damn efficient. It's very difficult to justify any other available option on a stock VQ motor. Many have tried. Unless it's for aesthetics only, in which case, you just get the CJM intake manifold

Spooler · 01-07-2022, 10:12 AM

Quote:

Originally Posted by spoolin03

I request citations from your lead engineer

Talk with other folks who have installed the GTR manifold and lost hp/TQ. They go back to the stock intake or the SOHO intake. You don't have to take my word for it.

spoolin03 · 01-08-2022, 03:21 PM

Quote:

Originally Posted by JARblue

Guess you'll just have to take the lead yourself cause that's not gonna happen lol

The stock plastic manifold is pretty damn efficient. It's very difficult to justify any other available option on a stock VQ motor. Many have tried. Unless it's for aesthetics only, in which case, you just get the CJM intake manifold

Anything can be improved is my theory

spoolin03 · 01-08-2022, 03:25 PM

Guys relax, it's just discussion

Rusty · 01-08-2022, 04:10 PM

There is nothing out there to improve over the stock manifold for N/A. Unless you go ITB. And that starts about 10K.

JARblue · 01-08-2022, 06:13 PM

Quote:

Originally Posted by spoolin03

Anything can be improved is my theory

That's a good theory. The problem is reality.

Every time someone comes up with a new intake manifold design, it's a big hype fest until the production and then suddenly silence. Because they dyno it with zero gains or more often a loss in power. $1000-2000 for that is a tough swallow compared to the inexpensive plastic stock manifold.

Check out the AAM intake manifold trainwreck of a thread

spoolin03 · 01-08-2022, 11:16 PM

Quote:

Originally Posted by JARblue

That's a good theory. The problem is reality.

Every time someone comes up with a new intake manifold design, it's a big hype fest until the production and then suddenly silence. Because they dyno it with zero gains or more often a loss in power. $1000-2000 for that is a tough swallow compared to the inexpensive plastic stock manifold.

Check out the AAM intake manifold trainwreck of a thread

I'm sure they got good results when they first designed it. But everything else that followed was rough for them it seems. It looks like people are using them for turbo applications.

01-05-2022, 01:44 PM	#2 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,834 Drives: 2013 Nismo 370z Rep Power: 2684392	That would be a no. Longer intake runners will reduce midrange TQ. Same thing happens if you use the GTR intake manifold. Spartan 1771, JARblue and Rusty like this.

01-06-2022, 03:33 PM	#4 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,218 Drives: 2011 Nismo GM 6M Rep Power: 2684438	On a N/A motor. Long runners for low end. Short runners for top end. It has to do with the velocity and momentum of the air moving through. JARblue, gomer_110 and spoolin03 like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

01-08-2022, 04:10 PM	#9 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,218 Drives: 2011 Nismo GM 6M Rep Power: 2684438	There is nothing out there to improve over the stock manifold for N/A. Unless you go ITB. And that starts about 10K. spoolin03 likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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01-08-2022, 03:25 PM	#8 (permalink)
spoolin03 Base Member Join Date: Jul 2021 Location: . Posts: 52 Drives: . Rep Power: 6714	Guys relax, it's just discussion