lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 So 3800rpm full boost I will get the power I want. What turbo would suit best with hi mount and exturnal gate? Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304505 Share on other sites More sharing options...
wolverine Posted June 6, 2014 Share Posted June 6, 2014 Why go hi mount when you can bolt the ext gate to the turbine housing and use the standard manifold? Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304588 Share on other sites More sharing options...
scotty nm35 Posted June 6, 2014 Share Posted June 6, 2014 It doesn't impress like a 6boob mani. Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304593 Share on other sites More sharing options...
lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 Doesn't the manifold help with flow and spool up? Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304626 Share on other sites More sharing options...
scotty nm35 Posted June 6, 2014 Share Posted June 6, 2014 Yes, it will restrict your power if you are chasing 500kw. Smaller runner, shorter manifolds will usually spool the turbo quicker, so no. Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304633 Share on other sites More sharing options...
lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 Ok so all I need to do is exturnal gate the op6 turbo your saying. Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304667 Share on other sites More sharing options...
scotty nm35 Posted June 6, 2014 Share Posted June 6, 2014 But it's internal gate, it won't work as well as the external housing as there is a large hole cut into the side of the nozzle. And it won't easily get you to 350kw. Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304685 Share on other sites More sharing options...
lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 So what size turbo Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304696 Share on other sites More sharing options...
scotty nm35 Posted June 6, 2014 Share Posted June 6, 2014 For 350wkw? What fuel? What supporting mods? Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304698 Share on other sites More sharing options...
Dose Pipe Sutututu Posted June 6, 2014 Share Posted June 6, 2014 Go through the RB25 dyno thread bro, shit loads of information there. Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304708 Share on other sites More sharing options...
scotty nm35 Posted June 6, 2014 Share Posted June 6, 2014 On 98 dino fuel you would be looking for a GT35. Lotsalag. Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304710 Share on other sites More sharing options...
lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 Current set up. 25 neo. head ported stage 1 cams spit fire coil packs 3" exhaust system 100 cel cat dump at diff. 600x300x76 cooler 20 psi on op6 hi flowed by stao 650hp aero flow fuel pump as main 550cc injectors bp 98 with c5 octain booster mixed at 500ml per 30lt fuel. Current problem is boost dropping back from 20 psi to 15 psi at around 5500rpm. Has heavy duty actuator. Still not helping. This set up is making 380hp@rw want to make 450hp@rw. Want to have full boost by 35-3800rpm Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304767 Share on other sites More sharing options...
scotty nm35 Posted June 6, 2014 Share Posted June 6, 2014 You need ethanol for those dreams. Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304770 Share on other sites More sharing options...
lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 So to get that power I will need 25/30 neo and bigger turbo on pump fuel. Or can I make it with th he 25 neo but will need larger injectors and e85 and bigger turbo Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304781 Share on other sites More sharing options...
scotty nm35 Posted June 6, 2014 Share Posted June 6, 2014 At those revs, yes. It's much cheaper using a different servo pump than building an engine... Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304788 Share on other sites More sharing options...
lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 Ok so will need 1000cc injectors and e85 but what turbo Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304808 Share on other sites More sharing options...
lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 I will turn it to 7300rpm if need be Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304809 Share on other sites More sharing options...
scotty nm35 Posted June 6, 2014 Share Posted June 6, 2014 There are about 1000 turbo's that will make 350kw of flow, you need to choose one that will do it within your target revs and boost. My suggestion for a responsive 350kw on e85 is a GTX3071 or similar, externally gated off the housing. Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304812 Share on other sites More sharing options...
lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 So this is the turbo you recommend. http://www.ebay.com.au/itm/NEW-GARRETT-GTX3071R-BALL-BEARING-TURBO-CHARGER-GTX30-GTX30R-GT3071-UPGRADE-/370992006782?pt=AU_Car_Parts_Accessories&hash=item5660d8c67e&_uhb=1 Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304850 Share on other sites More sharing options...
lcxu105 Posted June 6, 2014 Author Share Posted June 6, 2014 Or do you think this would be better.http://www.ebay.com.au/itm/Garrett-GTX3076R-Dual-Ball-Bearing-Turbo-Ext-Wastegate-A-F0-63-/180912574065?pt=AU_Car_Parts_Accessories&hash=item2a1f3ace71&_uhb=1 Link to comment https://www.sau.com.au/forums/topic/444063-rb25-neo-twin-turbo-manifold/page/2/#findComment-7304853 Share on other sites More sharing options...
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