Jump to content
SAU Community

rb25gtst greddy plenum

VSPECII

By VSPECII,
in Western Australia

 Share

Recommended Posts

B-Man Grand Master

B-Man

Posted
Posted

Hi Guys,

I'm just about to fit a GReddy/Trust plenum to my car - and will be doing back to back dyno runs before and after the swap with no other parts else being changed, maybe a bit of a teak on the tune depending on what we see. - So I'll have a good idea finally on exactly what gains to be expected. (My car not stock tho, so results will be in the context of my car)

I'm very excited about this change so I'll post the the results after I get them.

Cheers,

  • Replies 64
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

zanda Grand Master

zanda

Posted
Posted
Why would nissan put it on most of the skyline models if it wasent efficent and obiously they have spent alot of R&D on it.

I'm not necessarily convinced that these plenums are a good bang for buck upgrade, but I'm always amazed that people say this!?

anyone who has ever worked in an engineering environment knows that in design, there are two considerations

1.) is the design fit for purpose

2.) cost

the notion that nissan spent years pondering the best way to extract small HP improvements and maximum flow from their plenums is just ridiculous. The factory plenum is designed to be as cheap as possible to manufacture, whilst still performing the job adequately for purpose - i.e. low boost road use applications.

it's like saying that they spent a bucketload on r&d for their gts-t intercoolers - because nissan engineers and nissans are good. yet everyone knows that the factory intercoolers have got knobs.

the question for me on the plenum is - can you get it at a cheap enough price to justify the opportunity cost against other mods. i.e., if I spent that (up to) $2500 on something else, could I have acheived a better end result? I'd say no, unless you've done a lot already.

however, if you start talking about $800 instead of $2500...... :D

ix9 Grand Master

ix9

Posted
Posted
Why would nissan put it on most of the skyline models if it wasent efficent and obiously they have spent alot of R&D on it.

And why would TRUST/GReddy sell these plenums if they did nothing. And a Good 99% of Jap-tuned beasts have aftermarket plenums.

That's the biggest load of rubbish I've ever heard.

SmItLeR Collaborator

SmItLeR

Posted
Posted

well basically what i'm doin is replacing the plenum on a stock as a rock RB25DET - my reasons are - because i'm putting it in a Silvia and i want the plenum to be clear of the bonnet and for cooler piping reasons - also because i "thought" it gave it a bit more power

so - does the Greddy plenum give the stock RB25DET some more power - if so .. is it worth it because i can get the greddy plenum (surge tank they call it as well?) for about $1100 (about that) delivered to my door.

cheers

BRAD

zanda Grand Master

zanda

Posted
Posted
does the Greddy plenum give the stock RB25DET some more power?

evidently, yes.

if so .. is it worth it because i can get the greddy plenum (surge tank they call it as well?) for about $1100 (about that) delivered to my door.

that, my friend, is up to you to decide.

do you want it because of the performance increase or because of the ease of piping/fitting or both?

bear in mind that you will probably save some money on piping a FMIC if you have a front facing plenum.

SmItLeR Collaborator

SmItLeR

Posted
Posted

thats what i'm still trying to decide - whether its better to pay extra for cooler piping (being stock p[lenum) and puit some of the money towards other shit. but keep thinking as its going into a s13 and the stock plenum does cause some trobbles with the bonnet clearing - as the greddy plenum will sovle it :D i dno hey i still need some "Steering" in the right direction

gtrken Grand Master

gtrken

Posted
Posted
well basically what i'm doin is replacing the plenum on a stock as a rock RB25DET - my reasons are - because i'm putting it in a Silvia and i want the plenum to be clear of the bonnet and for cooler piping reasons - also because i "thought" it gave it a bit more power

so - does the Greddy plenum give the stock RB25DET some more power - if so .. is it worth it because i can get the greddy plenum (surge tank they call it as well?) for about $1100 (about that) delivered to my door.

cheers

BRAD

Think you might find it's a bit more than that , especially if Customs wants their bit.

Cheers

Ken

gtrken Grand Master

gtrken

Posted
Posted
o hey Ken :D  quote from Greenline - "Hope that you had a good Christmas and New Year.  

Thanks for your enquiry. Pricing information as requested:  

TRUST Surge Tank (Intake Plenum) R33 GTSt: 78,540 yen  

Shipping: 14,100 yen  

TOTAL: 92,640 yen AU$1158 "

:)

Yep agreed and I actually have one coming and is in Melbourne clearing depot.

They are looking VERY hard at stuff from Japan atm , and I expect to pay customs and duty which will add approx $500 to the cost.

If your lucky you will get it for the price quoted but don't rely on that being the final price.

Cheers

Ken

VSPEC32 Proficient

VSPEC32

Posted
Posted
$500 ??? How does that work ?

Damn - I hope I don't get slugged that much  ! ! ! :(

On the amount already paid for shipping, you can get slugged for import duty (from 11-15% if I recall correctly depending on the type of goods). On top of that you'll then be slugged GST on the original amount with shipping plus the import duty (tax on a tax). Might not be $500, but then I'm not sure how much Ken's got coming in.

I got some HKS dump pipes for my 'R from Greenline, paid just over $700 I think including shipping, unfortunately the shipping bill said the value was $0.00 which of course on a brand new HKS box made them suspicious. So being the honest person I am, I took down the correct invoice and got charged about $190 extra in import duty and GST.

In either case, it bites big time.

gtrken Grand Master

gtrken

Posted
Posted

Price of plenum $1158

Duty @ 15% $174

Total $1332

GST @ 10% $134

Total $1466

$1466

- $1158

Extra $308

Sorry , forgot that the price of $1158 included shipping.

The price that any company o/seas quotes does not usually include these charges.

If you are lucky , it may come to your doorstep without paying the extra charges but do not rely on that.

cheers

Ken

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Butters
      WA PITS: Am I screwed?

      By Butters · Posted

      I'm not up to date on the latest, but for basic modifications like pod filter, lower springs etc you can get a modification permit at the time of inspection.  For more serious modifications you will need engineering.  Intercoolers used to fall into the mod permit rule but its been a long while since i looked it up.   Either way you will be able to get it registered, just a case of $300 vs $3k . 
    • Degzy
      WA PITS: Am I screwed?

      By Degzy · Posted

      Hi everyone! I’m the new owner of a 1996 R33 GTS-T, I’ve purchased this car over from Queensland and brought it to Western Australia and I’ve found that there is a hole cut out in the engine bay for the FMIC that enters into the wheel well (fender liners are in the boot). For anyone that has had to get their car over the PITS here, will this be a major issue?   
    • Ozdavroz
      One of these is not like the others 😂

      By Ozdavroz · Posted

      Yeah I've spotted this one too, whenever it's lotto superdraw week and I'm browsing car sales dot com for my new ride They must be dreaming, maybe it's worth 150k for the link to Brock?
    • Shoota_77
      Shoota's R33 GT-R RB30/26

      By Shoota_77 · Posted

      100% accurate!  We are a pack of know it alls....  But, I bet people go to you when they have a problem! I've been on a bit of a clean up rampage too over the past month!  I've thrown more shit in the bin over the past 2 weeks than I have in the past 3 years combined! Anyway, it's all good fun being different! My wife sometimes does not agree!  
    • MBS206
      Shoota's R33 GT-R RB30/26

      By MBS206 · Posted

      ADHD in all form isn't about "can focus, or can't focus" or is hyper active or isn't etc.   It's all a dysregulation. Either time feels to be stationary, or time just vanishes in a split second. We are either under focussed on the task at hand (as we're over focussed on our surroundings) or we have no idea an atomic bomb went off beside us as we're so hyper focussed and locked in on things.   Not to mention the rapid fire thought process. What it takes a "normal" process to think up a solution to a problem, ADHD will be able to give you 5 different ways to solve the problem, and the pros and cons of each. While we can be highly impulsive and lack the ability to "control ourselves" we can also become paralysed with the inability to make a decision for ourselves. While most of us have an OCD like requirement for perfection, we lack the ability often to remain focussed to get things to a perfect state. Those with undiagnosed ADHD as adults, can often find the last part actually stops them ever attempting to do things that they have the ability to do, as the reasoning is often "if I can't do it perfectly, it's not worth doing"   As for projects... Ha ha ha, I still need to take the other half of my wall trim down in the Fiance's office so I can paint it. Need to finish digging and running the back yard drains, my R33, getting the Ninja bike registered (now being sold), the moped project, fixing either of the lawn mowers so they're reliable, along with a myriad of other things.   It's why I've been going through lately and just being brutal and clearing projects off that I won't actually ever complete. IE, moped will go to the tip, or be given away, bike is being sold, Subaru project being sold, some parts for other projects given away. Or I've been making myself focus on one thing at a time, by ticking off the smallest quickest ones first.   There's also a reason by our mid twenties we seem to be "know it alls", as we've all been down some of the weirdest and oddest rabbit holes when you follow the dopamine trail. It's often also why we're more a jack of all trades, but not a master of one.   However, pretty much all of my hobby projects, in one way or another, all come back around to automotive. That's my zen area.
×
×
  • Create New...