Gruppe-S

iTrader: (66)

Skunk2 carbon composite plenum

This spacer is dyno proven to outperform aftermarket manifold plenums currently being sold. The skunk2 spacer effectively increases plenum volume, lowers intake air temperatures, and allows front cylinders to breath more efficiently resulting in gains of up to 10+ hp to the wheels, and increased throttle response. Unlike other spacers on the market, Skunk2 spacers are made form a special carbon composite material (carbon impregnated nylon-6) that offers superior thermal insulation characteristics which also increase power by keeping the upper plenum and charge air temperatures lower. Because the stock upper plenum is used, the engine retains a factory appearance.

-5/8" uniform thickness - Not angles
-Easy installation (hardware included)
-Carbon Composite material to avoid heat transfer

Tom

King Tut

iTrader: (1)

I can't believe that Skunk2 has decided to jump into the 350Z game and started with a plenum spacer. Any idea on prices? Are they planning to make a full plenum or any other 350Z parts?

TLHASTZ

iTrader: (1)

so does this unit requires a new strut bar/strut bar removal to be used on a Z? and how much does it go for?

cvt

iTrader: (1)

dyno proven huh?...so where's the dyno?

jdifolco

iTrader: (2)

How many differnt ways can you really make a spacer to be competitive? I like that more people are making products so lets keep those prices down fellas

taurran

iTrader: (18)

+1. I'm in the market for a spacer and would like one that works with aftermarket strut/hood.

fahrenheit350

iTrader: (15)

Looks like all the spacers I found (1/4") will need a spacer on the strut bar or (1/4"+) an aftermarket hood to clear the strut bar. I am looking at the motordyne spacer at the moment and seems to be recommended in the forums.

Gruppe-S

iTrader: (66)

This space is 5/8" therefore I believe you will need to remove the tower bar or run spacers. The main idea behind this spacer is to minimize heat transfer while increasing the air volume. Its been proven in the Honda world that cooler intake temp can be achieve by putting a carbon composite gasket between the intake manifold and cylinder head which in turn yield a few extra ponies.

The price for these are $209 shipped but I can drop it down to $199 shipped if I get enough ppl.

Thanks,
Tom

MY350Z.COM

iTrader: (2)

Cool, I was about to suggest a Nylon spacer be made for heat transfer characteristics, this is even better.

sigsauer87

iTrader: (3)

Can you use this spacer with an aftermarket plenum such as a crawford V4 plenum?

350zWarz

yes, but you probrobly wouldn't be able to close your hood

edit: and you would need to get longer bolts

10secapsttz

But it does not address the issue of the "sloped" stock plenum starving the front 2 cylinders for air..All it basiaclly will do is increase the amount of air on the entire plenum and lean out ALL the cylinders.This is not ideal for the sloped design of our plenums, to simply "raise" the slope up even further and not leveling it off..Lets see a DYNO with A/F ...

BoOsTedz33TT

iTrader: (1)

i saw the dyno for it, 10hp gain through the whole rpm line, but you cant put your strut back on, and with spacers i dont think it will clear the hood, though skunk will be comming out with a 2tube thick strut bar, and try to corner the market selling it dirt cheap, from what ive been told

10secapsttz

They are well known in the Honda market, interesting to see what they bring to the table in the 350Z world.

KPierson

iTrader: (1)

So, if the heat isn't being dissipated by the plenum where does the heat go? It would have to be absorbed by the block, I would think, which MAY decrease intake temps, but wouldn’t that raise oil temps? The plenum sits on top of the motor, and it seems to me that it acts like a heat sink and draws heat off the motor.

anotheraznguy

iTrader: (14)

hey tom...
i am interested..
want to do a dyno too =)

King Tut

iTrader: (1)

Yep I have purchased many a Skunk2 product in my days and loved all of them especially their short shifter and shift ****. I do hope they make a high clearance strut tower bar as that would help alot of us with plenum spacers.

HyperSprite

iTrader: (6)

The whole slope thing is not the issue you make it out to be. Only 33% of the air is needed in the front of the plenum as it is only feeding two cylinders where 100% is needed at the back because all the air comes from the back and travels forward.

Really though, this has been discussed in like 20 other threads, I don't think it's necessary to turn every thread, especially one Gruppe-S is making an announcement in, into the flat vs angled vs full plenum discussion. Everybody has reasons for buying what they do, and like exhaust, it comes down to personal choice.

Chris

DomZ

I think you're right. It is not a heat sink that transfers the heat out, its more of a heat deflector that forces the heat somewhere else. My AAM metal spacer gets hot at the track, but I get the actual plenum, TB, and intake tube cooled enough that the spacer would not make a difference.

taurran

iTrader: (18)

I think I'll wait until I see the strut bar they plan on releasing first. I need an aftermarket vented hood more than I need a spacer, so first things first. Hopefully the new strut bar won't be too rediculous looking.