AngryRB Posted December 25, 2017 Share Posted December 25, 2017 Whats wrong with the r33 manifold, would certainly provide good flow for the 400kw's.. Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7863298 Share on other sites More sharing options...
NEO25T Posted December 25, 2017 Share Posted December 25, 2017 6 hours ago, AngryRB said: Whats wrong with the r33 manifold, would certainly provide good flow for the 400kw's.. On 16/12/2017 at 10:38 AM, Dose Pipe Sutututu said: My very last options are to either go back to a R33 intake manifold (gay) or buy a Hypertune (over priced) or equivalent plenum such as Otaku Garage/Madcat (China dim sim sui mai spec). Would be gay apparently lol Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7863309 Share on other sites More sharing options...
admS15 Posted December 25, 2017 Share Posted December 25, 2017 Stop being a homophobe and do it. Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7863310 Share on other sites More sharing options...
NEO25T Posted December 25, 2017 Share Posted December 25, 2017 10 hours ago, discopotato03 said: There may be a slight fix depending on how much material you can mill off the manifold face of the Neo lower section . I had a look at the face and a problem is the lack of material around the front water inlet . This would limit how much you can machine off without enlarging this water passage . If you are prepared to work around this and reset the injector height in the mounting hole it may just be enough to clear everything for your short EV14s . A . Scotty has tried to modify a spacer for me which looks pretty good however he didnt have a neo manifold to test fit them so ill give em a go when they arrive. After a bit more digging it looks like injector dynamics have a spacer however they will not sell them seperate unless you can prove to them you have a set of their injectors. Fuel injector clinic also looks like they might have a spacer that could work but havent contacted them. Im confident Scotty can sort it out ? Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7863311 Share on other sites More sharing options...
discopotato03 Posted December 25, 2017 Share Posted December 25, 2017 All good if you can make it work with some kind of injector adapter . Cheers A . Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7863315 Share on other sites More sharing options...
Dose Pipe Sutututu Posted December 25, 2017 Author Share Posted December 25, 2017 10 hours ago, AngryRB said: Whats wrong with the r33 manifold, would certainly provide good flow for the 400kw's.. I'm not aiming for 400kW Also no one seems to stock the China plenum labelled Otaku Garage or Madcat. They all try and say they take 4 weeks to be made in house (in house in a factory in China) lol. Asked for trade pricing and got a quote that's pretty much RRP with free shipping. Anyhow R34 NEO intake manifold off and swapping the R33 homosex shit back on. Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7863321 Share on other sites More sharing options...
discopotato03 Posted December 26, 2017 Share Posted December 26, 2017 I'm interested to hear the real world difference that the two manifolds make . Cheers A . Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7863335 Share on other sites More sharing options...
NEO25T Posted December 29, 2017 Share Posted December 29, 2017 Happy to say ill be using the xspurt 1550cc injectors in my neo manifold ? Scotty came through with the goods and made up an adapter that works. It does sit the injector back a little from where the factory one seats but after having a look from the other side i cant see it causing any problems. I did just buy another manifold to chop up to see how thick they are in that area where the injectors are, when it arrives ill do it anyway just out of curiosity. Once again thankyou Scotty ? 1 Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7863585 Share on other sites More sharing options...
discopotato03 Posted January 6, 2018 Share Posted January 6, 2018 Hi Johnny , curious to know if its all up and running with the R33 inlet manifold . I did a lot of searching and reading about injectors that could be suitable for the R34 Neo turbo manifold and there are a few options that aren't based on the short EV14 injectors . Thing is that the original Neo turbo injector looks more like a Bosch styled EV6 and the XR6 Turbo and R35 GTR injectors are similar or same dimensions . Luckily for us the 3/4 length EV14s are also similar dimensions . Overall I think the story is that if you want better top feeds for R33 go the half sized EV14 , or 3/4 length for the R34 Neo turbo inlet manifold . Starting an injector thread to keep this one on topic . Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7864333 Share on other sites More sharing options...
Sub Boy32 Posted January 6, 2018 Share Posted January 6, 2018 (edited) We have run the "1650cc" half length injectors with the standard (well slightly modified) lower cap that is usually run on the 3/4 length extended nose "040" injectors before to get around this problem with the connector/socket fouling on the RB manifolds (other engines also have thus problem) The "1650cc" injector has a very narrow cone spray pattern in testing and doesn't suffer from shrouding issues from having the pintle further up in an adaptor, we just put a chamfer edge on the final point to be on the safe side. There is also a direct drop in replacement 720cc injector available for the Neo. http://www.nzefi.com/product/bosch-720ccmin-high-resistance-top-feed-fuel-injector/ Edited January 6, 2018 by Sub Boy32 Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7864362 Share on other sites More sharing options...
NEO25T Posted January 12, 2018 Share Posted January 12, 2018 Chopped neo manifold for anyone thats interested ? 3 Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7864973 Share on other sites More sharing options...
discopotato03 Posted January 13, 2018 Share Posted January 13, 2018 Can we get you to measure the size of that water hole please Cheers A . Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7864994 Share on other sites More sharing options...
bilk06169 Posted January 14, 2018 Share Posted January 14, 2018 (edited) ok peeps who has the fix ? my car booked in for tuning kinda stressing out now Edited January 14, 2018 by bilk06169 added Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7865118 Share on other sites More sharing options...
NEO25T Posted January 15, 2018 Share Posted January 15, 2018 On 13/01/2018 at 5:07 PM, discopotato03 said: Can we get you to measure the size of that water hole please Cheers A . Approx 7.5mm, i measured a few times and got a different reading every time lol but that was the average. 19 hours ago, bilk06169 said: ok peeps who has the fix ? my car booked in for tuning kinda stressing out now How you go mate, get it sorted? 1 Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7865168 Share on other sites More sharing options...
bilk06169 Posted January 15, 2018 Share Posted January 15, 2018 scotty is getting the ball rolling for me 1 Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7865212 Share on other sites More sharing options...
NEO25T Posted January 16, 2018 Share Posted January 16, 2018 18 hours ago, bilk06169 said: scotty is getting the ball rolling for me You will find with the adaptors on there you will have enough space to use a 90 degree orb to dash fitting in the center of the rail so you can run it twin feed ? 1 Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7865304 Share on other sites More sharing options...
bilk06169 Posted January 17, 2018 Share Posted January 17, 2018 thats exactly what im doing Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7865425 Share on other sites More sharing options...
discopotato03 Posted January 19, 2018 Share Posted January 19, 2018 (edited) On 6/01/2018 at 6:20 PM, Sub Boy32 said: We have run the "1650cc" half length injectors with the standard (well slightly modified) lower cap that is usually run on the 3/4 length extended nose "040" injectors before to get around this problem with the connector/socket fouling on the RB manifolds (other engines also have thus problem) The "1650cc" injector has a very narrow cone spray pattern in testing and doesn't suffer from shrouding issues from having the pintle further up in an adaptor, we just put a chamfer edge on the final point to be on the safe side. There is also a direct drop in replacement 720cc injector available for the Neo. http://www.nzefi.com/product/bosch-720ccmin-high-resistance-top-feed-fuel-injector/ It took some searching but I found some info on this injector , its Bosch EV14 0280 158 235 . Unmodified BTW . "Should" be a drop in upgrade for a modest RB25DET Neo engine , 3/4 length EV14 with the correct Denso high guide connector . From what I read it has a 9 hole diffuser plate and supposedly excellent atomisation . I guess if you wanted to run flex and aim for only 300-320 wheel wasps these could be the Neo ticket . https://www.bosch-motorsport-shop.com.au/731cc-min-ev14-injector~4312 http://www.bosch-automotive-catalog.com/en_GB/product-detail/-/product/0280158235 OE Audi Injector ? http://www.vehiclepartsdatabase.com/vehicles/all/audi/a4allroadestate/20tfsiquattro/cdnc/35027/fuelinjectors/bosch/0280158235 A . Edited January 19, 2018 by discopotato03 Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7865619 Share on other sites More sharing options...
Dose Pipe Sutututu Posted January 20, 2018 Author Share Posted January 20, 2018 Thanks for taking it off topic again Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7865647 Share on other sites More sharing options...
discopotato03 Posted January 21, 2018 Share Posted January 21, 2018 Fine , re railing this topic . As has been mentioned fitting the shorty EV14s to the Rb25DET Neo is difficult to impossible depending on how close you want the injector tip to be to where Nissan has it . The OE Neo Turbo injector looks like a licence built EV6 injector but by Nippon Denso with the Japanese high guide connector sometimes called Denso or Sumitomo . These injectors are very close to the Bosch 3/4 length EV14 injector length wise . Now because the upper water log , bleeder feed actually , on the Neo manifold sits further out from the manifolds face AND the injector tip is closer to the manifold face - the injector hole or well is deeper than on R33 RB25 manifolds . Short EV14s are too short to seat/seal properly whilst having their electrical connector clear of the manifold casting . If you choose to make an adapter to sit the short EV14 higher in its well then there is no physical reason why this wouldn't work . The injector tip won't be where Nissans engineers intended it to be which would be my concern but hey - to each their own . All of this is only an issue if you limit your injector choice to shorty EV14s . I know unmodified injector choices are limited over 1000cc's . Link to comment https://www.sau.com.au/forums/topic/472924-issues-fitting-12-height-injectors-1300-1550-1700-2000-etc-with-extenders-to-rb25-neo-intake-manifolds/page/2/#findComment-7865695 Share on other sites More sharing options...
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