Ryno Posted October 27, 2007 Share Posted October 27, 2007 Finally fitted the plenum to my car. It went on the same time as a Hybrid intercooler kit, and GFB plub back BOV. It was a bit of a drama to fit, but I think it was well worth it in the end. Here's a couple of pics: Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3437982 Share on other sites More sharing options...
mass_iv Posted October 27, 2007 Share Posted October 27, 2007 definately looks good. i like the polished sheet metal look better then the greddy style ones... how does it perform?? any noticeable changes in response power etc??? Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3438000 Share on other sites More sharing options...
Ryno Posted October 27, 2007 Share Posted October 27, 2007 It definitely doesn't feel any laggier than before. The large throttle body does make it feel more responsive, as it now takes less throttle position to have the same effect as the stock one. Hopefully I'll have it on the dyno (to get re-tuned) sometime this week, so I'll let you know what numbers it puts down. Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3438684 Share on other sites More sharing options...
Bliksem Posted October 28, 2007 Share Posted October 28, 2007 Interesting throttle body, where did you pick that up from? Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3439024 Share on other sites More sharing options...
Ryno Posted October 28, 2007 Share Posted October 28, 2007 Interesting throttle body, where did you pick that up from? I purchased it as a package (along with the plenum) on ebay. I had my choice of 80mm, 90mm or 100mm!!! I decided to go for the 80mm option, as the others seemed like overkill for the power output I'm after. The car seems to be idling and starting better than it did with the standard throttle body. So I have no complaints. I've had a read through the 'how to' guide for the Greddy copy plenum, and it seems like the issues I had to overcome on fitting this plenum, are very similar to what he had to go through when fitting the Greddy one. I highly recommend this plenum and throttle body as an alternative to Greddy's plenum (or copy). Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3439515 Share on other sites More sharing options...
BHDave Posted October 28, 2007 Share Posted October 28, 2007 Did you have to muck about to fit the tps or did it bolt up? I've seen the TB's on ebay and often wondered if it would work Very interested to see a before and after dyno. Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3439581 Share on other sites More sharing options...
Ryno Posted October 28, 2007 Share Posted October 28, 2007 Did you have to muck about to fit the tps or did it bolt up? I've seen the TB's on ebay and often wondered if it would workVery interested to see a before and after dyno. Yeah we did have to modify the TPS, as the one I was sent suits other Nissan models (like pulsar) but not mine. I emailed the guy about it, and he said it was his mistake for not asking what engine model I have - so he's sending out the correct one. Will post up the dyno results later this week (if I can get in to see the tuner). Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3439946 Share on other sites More sharing options...
Ryno Posted November 1, 2007 Share Posted November 1, 2007 Unfortunately I wasn't able to get in to see the tuner this week, and I'm going away for work this weekend, so I won't be able to get it re-tuned for a while. What I can say though, is that I have gained some low end torque (which was completely unexpected)... My GT-RS now builds positive boost at just below 2000 rpm (in the taller gears) - about 500 rpm earlier than with the standard plenum. Even without the re-tune, this plenum is an awesome improvement. Ryno Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3450236 Share on other sites More sharing options...
Alf Posted December 12, 2007 Share Posted December 12, 2007 any updates? Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3529630 Share on other sites More sharing options...
BoostdR Posted May 26, 2008 Share Posted May 26, 2008 (edited) I know of a certain 2JZ with a KU engineering Plenum and TB making 430rwkw, And a GTR that went 2seconds faster a lap (Mallala) after installing one. I am also looking at using one for my RB31DETT. FYI RB20, RB25 use the std runners RB26 have KU Engineering cast runners to replace the throotle bodies Edited May 26, 2008 by BoostdR Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-3896039 Share on other sites More sharing options...
kdwebber Posted September 24, 2008 Share Posted September 24, 2008 old thread I know... I've just bought one of these manifolds. I will be upgrading my turbo and other things at the same time but I will post some pics and some hp/tq numbers when I have it tuned Kyle Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-4153212 Share on other sites More sharing options...
Ryno Posted October 8, 2008 Share Posted October 8, 2008 Sorry for the lack of updates, I've been unable to get on here for the last 6 months or so... When the car was dyno tuned, it made 240 rwkw at 17psi - Which should equate to about 260rwkw on Unique Autosports dyno. As with my previous dyno tune when I went from my tuners dyno to the Dyno day at Unique it made about 10% more power. It is a dream to drive, even on low boost (12psi) the car is a missile. I would recommend this upgrade to anyone. Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-4183452 Share on other sites More sharing options...
Madaz Posted March 9, 2009 Share Posted March 9, 2009 link to the eBay seller would be nice if you don't want to post it globally a PM will suffice Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-4466993 Share on other sites More sharing options...
murrayis Posted March 9, 2009 Share Posted March 9, 2009 If you use msn his email address is: [email protected] and his name is Jack, I bought my rb20 intake firstcly with him he also supplied me with a rb26 fuel rail and custom adapters to suite the rb20 mounts. Nice guy pleasure to deal with Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-4467026 Share on other sites More sharing options...
Madaz Posted March 9, 2009 Share Posted March 9, 2009 Hey thanks man will give him a look in Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-4467092 Share on other sites More sharing options...
anthonymcgrath Posted August 6, 2009 Share Posted August 6, 2009 hey guys sorry for bringing up an old thread but I've done some searching on here and I didn't want to pester everyone by kicking up another new thread. I asked about a greddy style plenum on here not too long back - I got a reply from a company called performance-wise. I've dealt with this chap a few years ago and bought a PowerFC for my first 33gtst at a great price. anyhow I got a pm for a greddy style plenum from this chap - I tried putting up the pic but it wont let me strangely so here's a link... http://www.skylinesaustralia.com/forums/ms...25det-intake-ma $460 shipped from uk - seems like a great price but my question is would it cause any issues? I've heard all kinds of thoughts on proper Greddy/Trust ones vs copies. I have to say I doubt theres any blinking difference, but seeing as you guys have tinkered with these cars over there far more than us backyard enthusiasts have here. I'd appreciate your thoughts on this - I cant afford a true Trust/Greddy one (are they the same company?) so a copy would have to do but would I be looking at any tinkering/butchering to get it to fit? thanks! anthony uk Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-4754021 Share on other sites More sharing options...
eXquiSit Posted April 24, 2010 Share Posted April 24, 2010 so its been a couple of years now and i am curious to see how many people run these plenums now it seems they are also catering for neo engines which is good as genuine and fake greddys do not alot neo owners to use all the standard idle control etc any updates would be awesome! Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-5198076 Share on other sites More sharing options...
TJ_R33 Posted April 26, 2010 Share Posted April 26, 2010 I running one now, and a guy around the corner from me was running one on his 25/30 and the guys at EFI in QLD were suprised at how much torque it was making. He selling it and a throttle body too suit in the for sale thread is anyone wants one. Link to comment https://www.sau.com.au/forums/topic/179784-jun-style-copy-intake-plenum-for-rb25/page/2/#findComment-5200783 Share on other sites More sharing options...
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