Skyline Plenums And Cnc Throttle Bodies.

[GTRNUR]

Hi everyone,

I'm ordering stock for my new e-business that I am in the process of setting up. To help lower costs of importing the first lot of stock I am putting the word out for anyone that wants to be involved in a group purchase.

The supplier is in Taiwan. The pricing listed below is in Australia. I've calculated the costs of Import duty and GST into the pricing, so items will cost what is listed plus freight to your door(see below).

So, here's what is available and its price landed here in australia.

INTAKE PLENUMS

RB20 Intake Manifold or RB25 Intake Manifold $502.49

RB26 Single TB conversion Intake Manifold $502.49

RB26 Greddy Style Intake Manifold "Polished" $689.69

SR20DET Intake Manifold "Polished" $541.90

Available with throttle body flanges for standard, 73, 80,90 and 100mm.

Throttle bodies (Veilside Replica's)

73mm Throttle Body $345.46

80mm Throttle Body $376.87

90mm Throttle Body $408.27

100mm Throttle Body $492.02

Available in either blue anodised or clear anodised finishes.

FREIGHT

Freight to anywhere in australia will have to be calulated but I can say that small items <3kg = $11.60 overnight freight. <5kg will be $16.10 for overnight freight also. Larger items such as plenums will be sent by mail and should be less than $30.

To participate in this group buy, email me and tell me what you are interested in purchasing. I'll be maintaining a register of who's buying what. Then once I receive the volume pricing i'll email everyone back what the final delivery price will be for what they want.

So the details I'll need are:

Name:

Shipping Address: (Preferably a place of business so packages can be signed for)

Phone or Mobile:

Email Address:

Item(s) you are interested in:

Once I've got your details I'll keep you up to date and give you a freight quote. This group buy will close on the 17th of April (2 weeks). At which time I'll make contact with those that have expressed interest. Product will arrive in Australia by the 8th of May at the latest.

Thanks,

Ian Swinkels.

Mobile: 0434 147 478 or 0740527220 (business hours)

[email protected] (this address is SPAM filtered, so if your mail bounces try [email protected])

Edited April 3, 2006 by GTST4Newbie

[kronic]

Im looking for a plenum for an rb26. What is the performance factor compared to a subzero plenum etc?

[GTRNUR]

I wouldn't be game to compare the two. There is no doubt that a Sub Zero plenum is awesome quality, hand made and australian quality parts, but it all comes down to what you want to spend.

The GTR style single throttle body plenums RRP for about $918 AUD in new zealand, and the GREDDY style ones RRP for about $915. So its about $300 cheaper for one of these taiwan assembled units.

In the end performance comes down to flow. So provided its match ported to your head/throttle bodies it will do well. Weather it be a sub zero plenum or any other one, it will still require this kind of work to be performed if your chasing serious ponies!

Out of conisidence i'm ordering a Sub zero plenum tomorrow myself!

Edited April 5, 2006 by GTST4Newbie

[33SOM]

Can you get adaptors for the standard throttlebody?

Also didnt subzero close shop??

[c33_rake]

Hi i am very interested in the plenums for the rb20 will this bolt on with the standard injectors fuel rail and all the other stock gear around that area?

Thanks Kyle

[GTRNUR]

Yes Kyle, the plenums use the standard intake runners but are cut off and have plenums attached. Each plenum runner has a trumpet at the top and are match ported to the runners after welding.

Because it uses a factory manifold its a guaranteed direct bolt on affair, with the exception fo having to re-run your vacuum hoses and relocate the throttle, and intercooler plumbing.

33SOM... Adapters for the standard throttle body? You mean a plenum for the standard throttle body? If thats the case then yes the plenums are available with throttle body flanges for throttles from stock to 100mm in all type of engines. 80mm is definatly the best way to go for all round tunability and room for 500hp easy.

Stock R32/R33 ones become a restriction around the 280-300 mark although you can still push a lot more thru them there is power to be had by increasing the size of the TB.

Sub Zero have moved and renamed their operation to Ferral performance... They still make plenums for around the $1000-1200 mark too depending on what your chasing.

[beastien]

Will the factory AAC valve etc mount to the RB20/25 plenum?

I can't see in the picture.

[LTHLRB]

are the rb25 plenums designed properly and proven?

[GTRNUR]

Proven... not by me. But i'm sure someone out there is using them.

They are the same as the ones sold at ...

http://www.japaneseperformanceparts.com

I'll be buying from their wholesaler...

PROBLEM.... RB25 intake runners are in tight demand... and as a result they can't supply RB25 plenums unless I ship them intake runners first.

I'll be seeing if I can cut a deal with a some of the importers to get a heap of them for the right price. I'll update you all with my progress, but for the moment i'll have to say RB25 plenums aren't available at present.

CHeers,

Ian

[LTHLRB]

so these are designed and made in taiwan? Is there anyone using this plenum with dyno figures and flow charts?

[N I B]

The RB26 Single throttlebody manifold does not fit needing welding and machining to get them close.

I tryed and gave up as the end result was going to be very sub standard.Used the throttlebody on a Greddy manifold also with poor results with 1300rpm being the lowest idle speed i could get.

[GTRNUR]

The RB26 Single throttlebody manifold does not fit needing welding and machining to get them close.

I tryed and gave up as the end result was going to be very sub standard.Used the throttlebody on a Greddy manifold also with poor results with 1300rpm being the lowest idle speed i could get.

Dam thats not good at all! With the throttle body did you try starting the car and jaming a rag in the intake (or covering it with your hand) to eliminate the possaibility of a vacuum leak elsewhere? I've been told by the suppliers that they have a ball bearing supported shaft that is sealed?

Did you get yours from japaneseperformanceparts in NZ?

[N I B]

I got them from a Turbo shop in Perth and i did try everything to lower the revs,EFI hardware fitted a new butterfly and solved the problem.

[c33_rake]

Could you show us a pic of the top of the rb20 plenum?

[N I B]

Theres a new model ive just seen that has a boss cast in the plenum for the idle air control valve that ppl says fits.If you can get one of those ill take one.

[Roy]

How about a picture up the guts of the thing?

[GTRNUR]

Hi Everyone,

Here is another picture of the RB20 plenum from a diferent angle. The supplier sent me a bunch more pictures but this was the only one worth looking at. When I ask for pictures of inside the plenum I think things are getting lost on translation...

They have 3 vacuum connections and also a connection for the brake booster. I can't tell if there is a place for the idle control valve at this stage yet. And again due to language lost in translation I can't get a clear response from the supplier... :S Worst case is that a small flange would need to be welded onto each plenum. On the bright side of this, you can put it anywhere you want, so you can mount it under the plenum so its not visable.

Also, the group buy is being extended until the 19th (2 days extra) due to a 1 week holiday that everyone seems to be taking in taiwan.

There has been a fair amount of interest in the group buy, enough that it will definatly be going ahead.

The lack of RB25 plenums is an issue, but i'm still investigating a work around and possibly importing the plenums allowing you to get them welded and match ported locally.

I'll be in touch with all people that made an enquiry in 5-7 days prior to placing the order on the 19th.

Cheers,

Ian Swinkels.

Edited April 11, 2006 by GTST4Newbie

[Jolinator]

very interested in one for a 20, provided we can get pics of the inside, also something that concerns me is that the rb20 one seems to be very similer to a gtr manifold, in terms of short intake runners, which has been tried and tested and you loose low down torque and power pretty much everyware, one of the nice things about the plazaman plenium is they bolt onto the original lower half of the manifold , as there any way we can get some kinda dyno charts?

[GTRNUR]

very interested in one for a 20, provided we can get pics of the inside, also something that concerns me is that the rb20 one seems to be very similer to a gtr manifold, in terms of short intake runners, which has been tried and tested and you loose low down torque and power pretty much everyware, one of the nice things about the plazaman plenium is they bolt onto the original lower half of the manifold , as there any way we can get some kinda dyno charts?

No I can't get pics of the inside. I will take some personally when the first shipment arrives.

Yes the total intake runner lenght is less with these plenums so in theory you loose some off boost torque, but it makes no diference when they are on boost. The intate runners do have trumpets on top of them.

No dyno info at this stage, but i'm planning on doing a before and after 16lb run on my car when I get one for it, so i'll post info then. Frankly i'm not putting it on to improve performance. I just hate the stock plenum and the cross over pipe you have to run if you have a frount mount IC.

I'm on holidays in darwin at the moment but i'm still in email contact. I'll be trying to keep people informed. When i'm back home monday week i'll be placing the order shortly there after making contact with everyone, confirming details again etc. Its still some public holiday in Taiwan as well so they aren't replying to email till the 23rd.

Cheers,

Ian Swinkels.

[GTRNUR]

Group Buy is closed. Thanks to everyone thats involved. I've emailed you all now, but if for some reason you didn't get my email let me know. The order is being placed this Wednesday. Parts arrive in 6-14 days.

Cheers,

Ian Swinkels.