ricknismo Posted April 6, 2005 Share Posted April 6, 2005 Finally finished my rebuild after about 7 weeks. Did 40 thou over rebore Arias forgies match ported everything reseated valves regasketted everything New big end and thrust bearings N1 oil pump N1 turbs S/S dumps and fronts Os giken twin plate Os giken adj cam gears Gates radiator hoses Gates timing belt Clear cam gear cover Acid bath All welsh plugs changed Oil cooler and filter relocator Anyway I am still in run-in time and the car seems a bit less than it used to be..I know I might be jumping the gun as I can't really get up it yet. But I have been around 5500rpm ish at 0.7 bar of boost and my 33 was always the 'lesser' car power wise....Just chasing thoughts Could it be because we opened the piping so much it will take more exhaust gas to boost? Is the engine just so new and tight? I am looking forward to giving it a proper boot full but I must behave for a few more hundred k's... The next step is injectors,pump and fc in case you were wondering why they weren't on the list. Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/ Share on other sites More sharing options...
Beer Baron Posted April 6, 2005 Share Posted April 6, 2005 good stuff mate. interesting that it feel a little down on power. has the CR changed much with the overbore and new pistons? that may explain it. Richard Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285053 Share on other sites More sharing options...
PHATR32 Posted April 6, 2005 Share Posted April 6, 2005 ya bastard, thats exactly how i planned my engine to look like!! looks god dambed mad!! steve Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285071 Share on other sites More sharing options...
Ronin 09 Posted April 6, 2005 Share Posted April 6, 2005 Nice... very neat looking Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285173 Share on other sites More sharing options...
fsmout Posted April 6, 2005 Share Posted April 6, 2005 could be the run in oil as well, i think mineral oil is harsher on the internals at high temp, but thats what it needs to bed the engine etc. sweet build!! i have just done the exact same rebuild!! i found that during the run in it also was abit down, but i got it tuned on the run in oil and it pulled 250rwkw on pits's dyno in 3rd at 1.2bar. It was running rich with the lower comp ratio after the oil change it seems to be much smoother and rev's alot easier. i can feel the power earlier, and it feels like it may come on harder?? i will have it dynoed at the next dyno day & post the results. also pits's dyno results are usually at least 10% low?? Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285363 Share on other sites More sharing options...
Guest two.06l Posted April 6, 2005 Share Posted April 6, 2005 Finally finished my rebuild after about 7 weeks.Did 40 thou over rebore Arias forgies match ported everything reseated valves regasketted everything New big end and thrust bearings N1 oil pump N1 turbs S/S dumps and fronts Os giken twin plate Os giken adj cam gears Gates radiator hoses Gates timing belt Clear cam gear cover Acid bath All welsh plugs changed Oil cooler and filter relocator Anyway I am still in run-in time and the car seems a bit less than it used to be..I know I might be jumping the gun as I can't really get up it yet. But I have been around 5500rpm ish at 0.7 bar of boost and my 33 was always the 'lesser' car power wise....Just chasing thoughts Could it be because we opened the piping so much it will take more exhaust gas to boost? Is the engine just so new and tight? I am looking forward to giving it a proper boot full but I must behave for a few more hundred k's... The next step is injectors,pump and fc in case you were wondering why they weren't on the list. did you open up the exhaust ports when doing the head?? Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285463 Share on other sites More sharing options...
ricknismo Posted April 6, 2005 Author Share Posted April 6, 2005 yep... fsmout what injectors did you use? I was thinking 550cc Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285619 Share on other sites More sharing options...
Guest two.06l Posted April 6, 2005 Share Posted April 6, 2005 did you open up the exhaust ports when doing the head?? yep... thats where your power has gone! Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285683 Share on other sites More sharing options...
ricknismo Posted April 6, 2005 Author Share Posted April 6, 2005 Gone!!!! Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285701 Share on other sites More sharing options...
ricknismo Posted April 6, 2005 Author Share Posted April 6, 2005 I have a 33 GTR with 250kw@all 4 and the 32 always seemed quicker so I'm hoping for more than 250kw @ rear Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285710 Share on other sites More sharing options...
itbmils Posted April 6, 2005 Share Posted April 6, 2005 ricknismo I have an R32 - and have just done the SAME rebuild, I'm also still runnin in (~1500klms on the dial so far) – I have R34 N1s with hks style non-turbulent dumps and a full 3.5” exhaust + the other stuff you mention At 8psi - I'm gettin ~180awkw I'd say (I can keep up with a std WRX and VYSS) B4 the rebuild I had about 210awkw – but my bottom end was shot (pots 4 and 6 totally rooted), no dumps, no port and polish blah blah blah It does not rev out as smoothly as it did b4 - but it I'm not expecting things to fully loosen up until past 5000klms (at least) and I have lost the mineral oil I have the PFC + Adj CAMS + 550cc injectors + Apexi EBC to install in the next week or so. I'm expecting somewhere near 280awkw @ 1bar once this kit is installed and tuned Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285877 Share on other sites More sharing options...
fsmout Posted April 6, 2005 Share Posted April 6, 2005 yeah i am running 750 denso injectors. I have now done just over the 2000kms & had did the dyno/run in after about 950kms. i changed to the penrite 5w50syth last sat. I would have to say that it is still a little rougher than it was, but getting smoother every day Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1285926 Share on other sites More sharing options...
ricknismo Posted April 24, 2005 Author Share Posted April 24, 2005 Had a play today...found a major boost leak. Here's a trick...I clamped a plastic cup in the rubber hoses where the air filters go, shoved an air compressor up the (or any) air line and pressurized the whole system...found a couple of leaks...Might still have a little one though. Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1316468 Share on other sites More sharing options...
CGB_R32 Posted April 24, 2005 Share Posted April 24, 2005 Good work finding whats wrong with it, this things goin to be a machine... am i right in assuming that its the wine red 32 with the prestige plates on it thats rocking this motor? Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1316503 Share on other sites More sharing options...
ricknismo Posted April 24, 2005 Author Share Posted April 24, 2005 No sorry champ wrong car..gunmetal one in yeppoon qld Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1316527 Share on other sites More sharing options...
CGB_R32 Posted April 27, 2005 Share Posted April 27, 2005 Oh ok its just that ive seen a pic with ur car i think (I WIN)? with a wine red 32 that packs some punch Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1321532 Share on other sites More sharing options...
ricknismo Posted April 27, 2005 Author Share Posted April 27, 2005 Nope thats a different 33 too..hehe I wish..it has huge power...I'd swap Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1321595 Share on other sites More sharing options...
R32-GTS Posted April 27, 2005 Share Posted April 27, 2005 Mate just did the same rb26 rebuild and it was down on power for the first 1000-2000k's . After this it loosened up and got its power back and more . Put it down to fresh motors been tight and need time to loosen up so dont stress. Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1321867 Share on other sites More sharing options...
ricknismo Posted April 27, 2005 Author Share Posted April 27, 2005 I hope so... Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1322516 Share on other sites More sharing options...
ricknismo Posted May 15, 2005 Author Share Posted May 15, 2005 I found the problem...Yeah. The standard boost solenoid has a T that goes to the plenum on the same line as the actuators...This won't work with an aftermarket boost controller and stuffs around with the sensors I guess. I ran a new vacuum line dedicated to the actators and it all good now. Link to comment https://www.sau.com.au/forums/topic/69469-32-gtr-rebuild/#findComment-1353301 Share on other sites More sharing options...
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