Piggaz Posted February 20, 2014 Share Posted February 20, 2014 I can't see them being a good choice, personally. Large duration with a fairy amount of lift. Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7205871 Share on other sites More sharing options...
XKLABA Posted February 20, 2014 Share Posted February 20, 2014 I can't see them being a good choice, personally. Large duration with a fairy amount of lift. I disagree, I think if you where building an NA RB20 with a 26 head these would be perfect !!! Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7205880 Share on other sites More sharing options...
GTRsean Posted February 20, 2014 Share Posted February 20, 2014 Just chop em down and fit to a CA18 already! perfect. Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7205924 Share on other sites More sharing options...
XRATED Posted February 21, 2014 Share Posted February 21, 2014 I didn't intend to get involved in the usual FIP section pissing contest.....just to make the point that if your tuner says they "tuned for response" without changing anything mechanically you better find a tuner who isn't talking shit. Jimmy, I was listing mechanical factors that affect response; once the mods have started most people forget how early the standard setup gets on boost. I built the stagea deliberately for response which is why it has standard zorst manifold, standard cams, standard head, small turbo and 3 litre bottom end. And it makes 18psi by 3200 rpm If I wanted more response I would add cam gear (as I have on the race car), it can bring on boost a few hundred revs sooner at the cost of top end power. But frankly it comes on hard enough early enough to empty the fuel tank quickly. For a race car I would say it is a very different concern. Full boost at 5 or even 5.5 is adequate especially if you have short gears and a standard or raised rev limit. I want this for my stagea... working on the 3lt currently but what turbo did you go with? my goal is the curve to be climbing through 120 odd kw at 3k (torquie is locked up by then) with a fat load of torque. Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7206749 Share on other sites More sharing options...
omnigear Posted February 21, 2014 Share Posted February 21, 2014 change the gearing of the drivetrain. ^_^ Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7206914 Share on other sites More sharing options...
discopotato03 Posted February 22, 2014 Share Posted February 22, 2014 I remember Cubes saying years ago that a std GT3076R 0.82 AR woke up quite early on his RB2530 though that was with an R32 RB25 NA head on it - no VCT . I'm trying to think along the lines of what Ford did on early XR6Ts when they wanted low boost with low restriction torque at lowish revs . Their GT3582R had the big turbine housing size with a smaller than usual sized compressor housing (T04E 0.50 from memory) and low boost pressure possibly 6-8 psi . I know people reckon I harped on about GT3076R 52T turbos over the years but think about this . Results with GT3071Rs were inconsistent and the 52T is the smallest of the 76mm GT compressor options . The smaller 0.50 AR (vs 0.60 AR) T04E compressor housing would put the air speed a bit higher at lower turbo speeds which is what you want to make low speed torque IMO . I think the critical thing is having low exhaust restriction at low revs but enough compressor speed to make boost in that engine speed range . Autos make life easier here because the engine revs can be a little higher at the point where the torque converter does exactly that . 20% more engine capacity will make a big difference in the standing to suburbing speed ranges so heaps of low down boost probably isn't necessary . Other than a GT3076R the only other thing I can think of is maybe a 2835 Pro S with the larger 0.87AR turbine housing on it if you can find that kit . Expensive new but falls in and the 0.87 possibly better suits the RB30 . I also agree with std cams and manifolds . A . Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7207640 Share on other sites More sharing options...
Duncan Posted February 23, 2014 Share Posted February 23, 2014 Yeah 180kw at 3500 is pretty fun, I'd be surprised if there were many RB setups making that sort of power I'm actually not sure of the exact turbo specs; I originally had an ebay "T3/4" bush bearing turbo on there and put a garret ball bearing core in when it failed. If it helps the turbo anorak wearers the core tag says "PC 0105J 7-6451-5005". But whatever it was, it was spot on what I was after Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7208058 Share on other sites More sharing options...
XRATED Posted February 23, 2014 Share Posted February 23, 2014 ha ha ha awesome! Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7208156 Share on other sites More sharing options...
Wongy Posted March 19, 2014 Share Posted March 19, 2014 Recently fit parts installed and had a retune. Much better than before,I think it was due to a crack in the intercooler piping before. Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7231991 Share on other sites More sharing options...
GTR_JOEY Posted March 19, 2014 Share Posted March 19, 2014 Yea that's usually a fairly large performance killer Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7232203 Share on other sites More sharing options...
XKLABA Posted March 19, 2014 Share Posted March 19, 2014 Good to see its fixed and your happy with it What parts did you end up going for ? Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7232957 Share on other sites More sharing options...
Wongy Posted March 20, 2014 Share Posted March 20, 2014 I went back to stock airbox from ARC airbox, Tomei Poncams 270 ex 9.15, tomei cam gears, arp headstuds, tomei valve springs. Will eventually change out AFM's to Z32's and get a hard piping kit to replace all the rubber pipes Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7234400 Share on other sites More sharing options...
Piggaz Posted March 21, 2014 Share Posted March 21, 2014 Bet it sounds tough . Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7234570 Share on other sites More sharing options...
danny14 Posted March 21, 2014 Share Posted March 21, 2014 ok so i have been told to build a reliable 600hp rb26 on e85 I will need a nismo (n1 block) that -5 turbos will not flow at that power. i was told that the stock rb26 block will crack for sure at some stage if its pushed past 450hp . my block is the r33 gtr block . What is your view on this guys .ps sorry if i hi jacked this thread Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7234657 Share on other sites More sharing options...
Piggaz Posted March 21, 2014 Share Posted March 21, 2014 Who told you that? Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7234673 Share on other sites More sharing options...
danny14 Posted March 21, 2014 Share Posted March 21, 2014 i will speak with you in personal message i wont go menchioning names here Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7234688 Share on other sites More sharing options...
Lithium Posted March 21, 2014 Share Posted March 21, 2014 Holy crap. I've been in a GTR running twice that power with the original block - it must be in pieces 1 Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7234843 Share on other sites More sharing options...
Anfanee Posted March 21, 2014 Share Posted March 21, 2014 ok so i have been told to build a reliable 600hp rb26 on e85 I will need a nismo (n1 block) that -5 turbos will not flow at that power. i was told that the stock rb26 block will crack for sure at some stage if its pushed past 450hp . my block is the r33 gtr block . What is your view on this guys .ps sorry if i hi jacked this thread Don't go back there again. They don't know what they are talking about LOL Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7234846 Share on other sites More sharing options...
gtr0321994 Posted March 21, 2014 Share Posted March 21, 2014 Holy crap. I've been in a GTR running twice that power with the original block - it must be in pieces Lol Sent from my iPhone using SAU Community Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7234886 Share on other sites More sharing options...
XGTRX Posted March 21, 2014 Share Posted March 21, 2014 If a mechanic told you that, run away as fast as you can. At least it will sound good when it blows up though. Link to comment https://www.sau.com.au/forums/topic/219857-building-an-rb26-for-response/page/8/#findComment-7235090 Share on other sites More sharing options...
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