Greddy Plenum

[Taso84]

Hi guys,

I've done a search for this but wasn't able to come up with much so I'm just wondering if anyone on here knows what the advantages are of upgrading to a forward facing plenum in a 33 GTSt.

From what I understand so far the advantages are shorter cooler piping (less pressure drop) plus colder intake temps. Is there anything else I should know and what have ppls experiences been (ie is this a good value for money mod).

Most ppl on here seem to upgrade to a greddy branded product but are there any other good alternatives out there for the GTSt? (eg GTR plenum)

Last question is how defectible is an aftermarket plenum in Victoria. Due to the "one intake modification" only law I would have thought that this would make it very difficult to get a defect cleared due to the fact you would have to put the stock plenum and intercooler back on.

Any advice/experiences much appreciated

Regards Taso

[Rits2.0tpig]

much easier to get to your plugs

and it looks cooler

[r33cruiser]

all up i probably have 3-4 ft of fmic piping-PRO

looks cleaner, ^^^^ easier to access plugs- PRO

its a bit cramped down the side, so getting to the oil filter can be....difficult-CON

you can upgrade to a larger t/b - PRO

you can delete the BOV- PRO

[R31Nismoid]

you can upgrade to a larger t/b - PRO

you can delete the BOV- PRO

No and no unfortunately.

Legalities wise, as per the first post, he cannot upgrade/change those two things

Plenum i do believe you can change, as long as you keep ALL the factory bits on the plenum side to do with emissions.

So stock T/B, all hoses, breathers and whatever else is there... BOV included. Or just put a GTR BOV on, thats also legal as its plumb back.

[R31Nismoid]

Also...

I made 270rwkw on pump, 370rwkw on fuel (and more boost)... stock top end (minor head touch up) and my response was as good as any other car with a 600hp turbo.

Overall... honestly the money is far better spent on a turbo and other areas.

Especially in Vic. A plenum just makes the cops look harder

[R34GTFOUR]

bloody hell VIC must suck ass... only one intake mod haha

On a relatively stock gtst its not worth the upgrade, money is best spent elsewhere. It does clean up the engine bay alot though and shorter intake piping is always going to be a winner

[Jaysiin]

does the gtr plenum fit a gtst? never heard or seen it done. but if so, id be going that route or keeping the stocko one depending on cost vs bang for buck.

Edited March 15, 2009 by Jaysiin

[R31Nismoid]

No... Please use the search.

In a nutshell you need to either have a custom adaptor plate made, or pay for the blitz one... either way its expensive and not worth it.

[TiTAN]

The GTR item isn't a direct bolt on to an RB25. lots more work than its worth.

[Taso84]

Thanks for the info guys, very useful indeed. I guess the reason i wanted to do it was because it just makes the engine bay so much tidier and its such a waste having the cooler pipes bending around.

Why couldn't nissan have fitted GTSts with FMIC and front facing plenum. MAkes my blood boil, would have saved us so many headaches

[Phantom32]

I'm thinking that shorter cooler piping would improve the response of the car?

Can anyone confirm/clarify this? This is the next step that i'm looking at doing - upgrading the intercooler and getting a forwards facing plenum as my goal now is to increase my response as est as possible for the setup.

So, for all those with a forward - facing plenum - did you guys notice better throttle response with the shorted cooler piping?

cheers

phantom

[gotRICE?]

Thanks for the info guys, very useful indeed. I guess the reason i wanted to do it was because it just makes the engine bay so much tidier and its such a waste having the cooler pipes bending around.

Why couldn't nissan have fitted GTSts with FMIC and front facing plenum. MAkes my blood boil, would have saved us so many headaches

They did it to the Silvias, front facing plenum i mean, and had the I/C piping looking like an aftermarket GTSt!

In they end the engineer the car do produce certain power. And an SMIC is sufficient for the power they make in standard mod/boost form.

[Bliksem]

I guess the reason i wanted to do it was because it just makes the engine bay so much tidier and its such a waste having the cooler pipes bending around.

Not worth it just for looks, or bragging rights. I have one just because I did the 3.0L conversion, not sure if it improved throttle response because of the other changes I did. If your thinking about getting a china manifold I'd think twice there too considering the gamble on quality and the lack of parts they supply with it (not to mention its fake)

[joeyjoejoejuniorshabadoo]

afaik benno @ racepace can get a hold of the blitz adaptor plate to put a GTR plenum on a gtst... still a lot of work tho

imho not worth it unless you are really concerned about cosmetics or have a spark plug changing fetish

[toddlls]

plenty of other companies that do this sort of product, try Plasmaman

[joeyjoejoejuniorshabadoo]

te plazmaman plenums are niiiice