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well hopefully i can escape the tax - the box is getting turned inside out and getting labeld "gift" :(

i'll take the risk

I would delete this post if I was you.

Other people read these forums that may be interested in that....

Cheers

Ken

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deleted- now u delte urs since u quoted  me :P

and ken that price i said inlcluded shipping - it was just minus tax etc

cheers

BRAD

The plenum is sitting at WA customs as we speak while they sort out value of/tax/GST so don't think you are not going to get stopped.

As I said anything from Japan performance related is being scrutinised.

Cheers

Ken

LOL!! - ok i've decided to not go with the purchase of the plenum as $1500 could be put to better use else where. Now all i'm searching for is 300-350 wrhp out of a RB25DET which is fitted into a S13 silvia - (to much hp will be crazy) - mods already fitted will be a Wolf 3D, 3" stainless zaust, pod (typical - lol), FMIC, and Bosch 044 pump ;)

what would the next best mod using about $1500 to get me to my goal of 300 - 350 wrhp?

cheers

BRAD

the combo youve described above should get you close to 300 in a skyline. assuming the drivetrain losses are the same you should be nearly there.

you'll be struggling to get more than that out of the standard turbo though.

s/hand t3/4??

either way, I would like a ride in a 350 rwhp silvia.

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.

Why is a forward facing plenum included on everything *except* the gts-t then? Even Nissans 'budget' CA18DET and SR20DET motors include one. So its basically not cost. I'd say its just efficiency and suit for purpose as stock, and as people are saying - you're not probably going to notice the gains on a fairly stock setup. Start shoving more boost in, flowing more air into the inlets, and then it might become an issue if the chambers are restrictive.

From what i've seen/read it really becomes a gainer *after* you've stepped up to bigger turbo land. But every little bit helps along the way.

when i was at speedworks i saw a lancer that had just had the intake manifold changed. from something standard to a jun one. runing only 1.2 bar boost it make 80 ps more than when it was running 1.7 bar. even aj at speedworks couldn't beleive the results. i think it simply proves how much extra power can be tuned from a car with high quality parts.

having a better plenium will make a difference, less restriction at higher flow lets the cylinder pressures go higher at lower boost. how ever if you dont have a bigger turbo, fmic and management i wouldnt c you could actually utilize this item. if you do have these items

im yet to look at the internals of the greddy plenum, i would like to do this before i decide weather its worth making my own from scratch or purchasing one of these. if i can design and build this from scratch with no real problems i might consider making more. how ever i need to put more reserch into this before i start. anyone whom could help with any info i might need i would love to hear from you.

Matty B

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