allblitz Posted July 11, 2005 Share Posted July 11, 2005 I wanna rebuild my blown engine. Like everyone, I want something good but keep it low cost as possible. I was thinking of getting a T78 33D Turbo (around 350kw). Besides the forged pistons, what other stuff are a 'Necessity' to handle such power. Those with knowledge in this department, please give me a list of what I am looking at, and how much each part will cost. Just trying to get an overall view of what i need and $$$ it will cost. If its gonna go above my desired budget, i might have to settle for a hi-flowed turbo, and nothing too serious in the engine. Thanks a lot. Husnu (Hus). Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/ Share on other sites More sharing options...
netrati Posted July 11, 2005 Share Posted July 11, 2005 You don't need that big a turbo to make 350kw! T78 is a huge turbo 500+kw. You could go with a GT3040, rated for 375kw, or T67 25G, rated for 410kw. What is your desired budget? Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457734 Share on other sites More sharing options...
allblitz Posted July 11, 2005 Author Share Posted July 11, 2005 I know someone who has the whole T78 33D Kit (External Wastegate, Exhaust Manifold, Dump Pipe + a few other piping with it). It will cost me around 3K mark, which is a bargain. Putting those costs aside - i wouldnt want to spend more than 5K on the engine. (Am I living in La La Land?) Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457766 Share on other sites More sharing options...
Suspense Posted July 11, 2005 Share Posted July 11, 2005 You will need AfterMarket Computer Injectors turbo Manifold and prolly new cams Also dont forget to upgrade your brakes Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457770 Share on other sites More sharing options...
allblitz Posted July 11, 2005 Author Share Posted July 11, 2005 Cost Costs Costs - Thats what I need to know : ) Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457776 Share on other sites More sharing options...
netrati Posted July 11, 2005 Share Posted July 11, 2005 Do not use a T78 to make 350kw. This turbo is way too laggy and you'll have a horrible power band for only 350kw. Rough estimate using all new Tomei stuff: Prices USD$ Pistons 1,400 Rods 1,300 260° Cams w/pullies 850 555cc Injectors 780 1.2mm Headgasket 280 Apexi Power FC 1,200 Then you still have to add labor. What mods does your car currently have? Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457830 Share on other sites More sharing options...
Blitz Posted July 11, 2005 Share Posted July 11, 2005 Dont forget the extra parts like fuel pump, gaskets, oil pump etc. $5k isnt enough, not by a long shot Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457839 Share on other sites More sharing options...
netrati Posted July 11, 2005 Share Posted July 11, 2005 Valve springs would be a good idea, $400US. Make sure have a clutch that can hold the power. Intercooler, fuel reg, blah blah. Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457848 Share on other sites More sharing options...
NickR33 Posted July 11, 2005 Share Posted July 11, 2005 are you taking the motor out yourself Hus? if you do and can simply send it off to get machined then you should be able to get it rebuilt for less than 5K... pistons ($1200) rods (GTR Rods? $400) bearings (??? maybe $200?) water pump ($120?) timing belt ($60?) head gasket ($200) head studs ($40???) welsh plugs (???) machining (depending on what you want/need basic tidy up probably cost $2000) and of course anything else I have forgotten as I am not a mechanic and a clutch to hold 350kw Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457862 Share on other sites More sharing options...
NickR33 Posted July 11, 2005 Share Posted July 11, 2005 oops too slow on the post reply button... what Netrati said + what I said = alot more than 5K... sorry Hus:( Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457871 Share on other sites More sharing options...
netrati Posted July 11, 2005 Share Posted July 11, 2005 My example is using all new tomei parts. I'm sure it could be done cheaper using used parts. I'm not an expert in doing things the cheap way. I always like to buy everything new when possible. Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457885 Share on other sites More sharing options...
|\| i s m o Posted July 11, 2005 Share Posted July 11, 2005 hmmm i dont think 5k is enough....U would need a good ecu, new cams, gaskets,injectors Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457891 Share on other sites More sharing options...
allblitz Posted July 11, 2005 Author Share Posted July 11, 2005 Car currently has HKS FMIC, Rajab Racing Custom Clutch, HKS Hypermax Coilovers, 3" Kakimoto Turbo Back Exhaust, Hi-Flowed Turbo, Arnage LSD Diff. Ok, put aside 350kw - say the T78 will hit 450-500kw - would i still need the same parts as what i was going for a 350kw - or extra parts? So for 6K (excluding turbo kit) - i wont be able to do much? Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457895 Share on other sites More sharing options...
|\| i s m o Posted July 11, 2005 Share Posted July 11, 2005 Car currently has HKS FMIC, Rajab Racing Custom Clutch, HKS Hypermax Coilovers, 3" Kakimoto Turbo Back Exhaust, Hi-Flowed Turbo, Arnage LSD Diff.Ok, put aside 350kw - say the T78 will hit 450-500kw - would i still need the same parts as what i was going for a 350kw - or extra parts? So for 6K (excluding turbo kit) - i wont be able to do much? still need cams ecu etc i think plus work and gaskets....i dont think 6k is enough.. Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457916 Share on other sites More sharing options...
netrati Posted July 11, 2005 Share Posted July 11, 2005 450-500kw and you'll need a few more things. Aftermarket transmission, bigger injectors, forged crankshaft, probably a bigger intercooler, boost controller, radiator and oil cooler for safety, and probably 1000 other things I'm forgetting. Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457921 Share on other sites More sharing options...
allblitz Posted July 11, 2005 Author Share Posted July 11, 2005 ok.., throw away the idea of T78 I want to build an engine to suit 300kw at the wheels. Put aside the turbo kit (I may go for a T67 25G). Can i get a descent built engine for 6k? Or should i just buy a 2nd hand engine and drive with a 160kw skyline Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457934 Share on other sites More sharing options...
Col-GTSX Posted July 11, 2005 Share Posted July 11, 2005 Spend you 6k on an rb26 motor and go hard in standard format.... It will be fun... Then when someone is selling second hand bits off their gtr... Jump in and buy their stuff Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457953 Share on other sites More sharing options...
netrati Posted July 11, 2005 Share Posted July 11, 2005 If you wanna make 300kw go with a TD06 L2 20G or a GT3037. You might be able to make this on stock internals. You'll still need an ecu, injectors, fuel pump, and a boost controller. Cams would be a good idea too. I think the stock headgasket is fairly strong on an rb25. Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457956 Share on other sites More sharing options...
Col-GTSX Posted July 11, 2005 Share Posted July 11, 2005 Remember 6k will get you a half cut... So you could sell off the trans and other bits then use the brakes and sell the intercooler... By the time you buy and sell stuff you will have like 2g's left over to spend on cams, pfc & fuel pump..... Thats what id do with 6 g's... And of course youll get a few bucks for the blown motor Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457962 Share on other sites More sharing options...
Col-GTSX Posted July 11, 2005 Share Posted July 11, 2005 RB26dett with 2k spent on it in the right areas will give you 300rwkw all day every day.... Link to comment https://www.sau.com.au/forums/topic/80114-rb25-engine-rebuild-for-300-350kw-helpopinions/#findComment-1457966 Share on other sites More sharing options...
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