R34NRG Posted March 28, 2007 Share Posted March 28, 2007 (edited) alright got my car dynoed few weeks ago and hit a awsome 220rwkw with 12psi, and stock internals. ive been looking at bigger turbos lately and was wondering what would i need to hit around 300rwkw? ive recently also purchased injectors and a fuel pump for the new turbo (but havnt put it on yet) and was wondering would the RB25DET NEO need a engine rebuild? (cams, rods, ect ect) to keep up with 300kws? Edited March 28, 2007 by anDru Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/ Share on other sites More sharing options...
Blitz Posted March 28, 2007 Share Posted March 28, 2007 You don't need forged internals with 300rwkw on a healthy RB25, however if you are chasing this kind of power, and want lasting reliability for your engine then rebuilding with forged pistons at a minimum is highly recommended. Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3013129 Share on other sites More sharing options...
R34NRG Posted March 28, 2007 Author Share Posted March 28, 2007 (edited) so all i need is forged pistons? thats fine then i guess, oh and another question, how big will my injectors have to be to keep up with 300kws? i bought 525ccs and a 044 fuel pump.....they should last right? and what other costs are involved? a mate of mine told me i had to take the whole engine out and machine out the old crap to fit in the new and that would cost around $1000. is this really needed? and what else would i possibly need to do? Edited March 28, 2007 by anDru Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3013167 Share on other sites More sharing options...
antonio Posted March 28, 2007 Share Posted March 28, 2007 (edited) so all i need is forged pistons? thats fine then i guess, oh and another question, how big will my injectors have to be to keep up with 300kws? i bought 525ccs and a 044 fuel pump.....they should last right?and what other costs are involved? a mate of mine told me i had to take the whole engine out and machine out the old crap to fit in the new and that would cost around $1000. is this really needed? and what else would i possibly need to do? Mate i think its time you called up somebody who does Heads & Blocks, cause your now going into never never land. Contact flowcraft on 9361 2345, You cant just remove the old pistons and go in with the new.. You may want to Oring, Port and Polish, Shot peen, Put in a Stage 2 or 3 cam, heaps of things can be done to archive a proper rebuild in the end for a guesstimate your looking at $5000. Edited March 28, 2007 by antonio Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3013221 Share on other sites More sharing options...
R31Nismoid Posted March 28, 2007 Share Posted March 28, 2007 Around $15,000 is what you need if you want it reliable, otherwise it'll die sometime and your almost better off in a casino. Same as all the other topics. ECU - $1500 Turbo - $1800 Manifold - $1100 Motor rebuild - $8000 (includes new crank, oil/water pumps, pistons, general machining tidying up, motor in/out) Clutch - $1200 Brakes - $1000 Injectors - $700 Fuel pump - $300 AFM - $300 Custom piping - $300 Exhaust - $1200 $17,700. Obviously take out what parts you already have to make the costs to what you need. You wont need the rebuild right away in some cases, but either way you'll be doing it at some stage. So if you cant afford the rebuild, dont chase the power. Its the basic rule of thumb for chasing power on stock motors. Also factor into the case that you live in Melb and the legalities surrounding a modified car. Your a P-plater... You will get dicked by the cops/EPA at some stage regardless of how you look at it. So thats going to cost probably 5-7k to clear the defect. If you ask me, just put a GCG hi-flow on there, a genuine 250rwkw and live a happy (reliable) life. Thats more than enough for the street, the turbo is undetectable and you'll pass EPA/Roadworths easily. If you want more detailed info (and there is plenty) - search. Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3013224 Share on other sites More sharing options...
subzeroR33 Posted March 28, 2007 Share Posted March 28, 2007 Probly a Gt 35R turbo would do the job and the other goodies you have. I have the GT 35R on mine running around the 320kw mark, but i also have a full forged rebuild. I think its luck when you have stock internals and running that sort of power, its just a matter of a time BOMB. Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3013257 Share on other sites More sharing options...
G_Force Posted March 28, 2007 Share Posted March 28, 2007 alright got my car dynoed few weeks ago and hit a awsome 220rwkw with 12psi, and stock internals.ive been looking at bigger turbos lately and was wondering what would i need to hit around 300rwkw? ive recently also purchased injectors and a fuel pump for the new turbo (but havnt put it on yet) and was wondering would the RB25DET NEO need a engine rebuild? (cams, rods, ect ect) to keep up with 300kws? How bout brakes & suspension? I'd consider an upgrade in those areas for that sorta power, pointless having that sorta power if u cant stop the thing or control it thru a corner. A driving course down ur local track would also be a worhwhile investment. Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3013437 Share on other sites More sharing options...
brenr33 Posted March 29, 2007 Share Posted March 29, 2007 sheesh $8000 i wish people would pay that. u dont need a new crank we have made over 600kw on prep'd standard cranks all day long. buy a decent set of rods instead Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3015005 Share on other sites More sharing options...
R33GOD Posted March 29, 2007 Share Posted March 29, 2007 Around $15,000 is what you need if you want it reliable, otherwise it'll die sometime and your almost better off in a casino.Same as all the other topics. ECU - $1500 Turbo - $1800 Manifold - $1100 Motor rebuild - $8000 (includes new crank, oil/water pumps, pistons, general machining tidying up, motor in/out) Clutch - $1200 Brakes - $1000 Injectors - $700 Fuel pump - $300 AFM - $300 Custom piping - $300 Exhaust - $1200 $17,700. Obviously take out what parts you already have to make the costs to what you need. You wont need the rebuild right away in some cases, but either way you'll be doing it at some stage. So if you cant afford the rebuild, dont chase the power. Its the basic rule of thumb for chasing power on stock motors. Also factor into the case that you live in Melb and the legalities surrounding a modified car. Your a P-plater... You will get dicked by the cops/EPA at some stage regardless of how you look at it. So thats going to cost probably 5-7k to clear the defect. If you ask me, just put a GCG hi-flow on there, a genuine 250rwkw and live a happy (reliable) life. Thats more than enough for the street, the turbo is undetectable and you'll pass EPA/Roadworths easily. If you want more detailed info (and there is plenty) - search. 700 bux for injectors?kool! who makes them and what size nismoid? Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3015021 Share on other sites More sharing options...
paulr33 Posted March 29, 2007 Share Posted March 29, 2007 find out how much for health insurance and a funeral Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3015035 Share on other sites More sharing options...
satanic Posted March 29, 2007 Share Posted March 29, 2007 Some rather weird injector numbers floating around these days... who the hell makes 525cc injectors for the NEO; or are they high-flowed from someone like Deutschworks? Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3015115 Share on other sites More sharing options...
Guilt-Toy Posted March 29, 2007 Share Posted March 29, 2007 lol I drive 317 rwkw to work every day 130km round trip and dont have any issues. its all about your attitude and experience. Ride the boost wave - dont wipe yourself out.. hehe find out how much for health insurance and a funeral Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3015237 Share on other sites More sharing options...
R31Nismoid Posted March 29, 2007 Share Posted March 29, 2007 sheesh $8000 i wish people would pay that. u dont need a new crank we have made over 600kwon prep'd standard cranks all day long. buy a decent set of rods instead Well i would look at it from a point of view... if your going to do it. Do it right. Although, i put the crank in there as most people will have the old style, which requires a collar... so its easier just to purchase a 33GTR one in the end most of the time. Its not the issue of making the power on a stock crank, its which crank you choose to use Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3015330 Share on other sites More sharing options...
Abo Bob Posted March 29, 2007 Share Posted March 29, 2007 New crank = what $1000? Collar = $300ish fitted? Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3015996 Share on other sites More sharing options...
SLIPPERY Posted March 29, 2007 Share Posted March 29, 2007 and were talking about the NEO rb25....i didnt think theyd need a collar like the early 32 GTRs Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3016070 Share on other sites More sharing options...
R31Nismoid Posted March 29, 2007 Share Posted March 29, 2007 New crank = what $1000?Collar = $300ish fitted? + machining of the crank + getting it checked/testing it and so-on for wear etc etc Its not far off, hence i just purchased a new crank. If you find your current one isnt so crash hot, then you've just done your dinner Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3016104 Share on other sites More sharing options...
sinistaGTR Posted March 29, 2007 Share Posted March 29, 2007 you need cams and prob coils packs too get to 300rwkw as i have just found out... Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3016344 Share on other sites More sharing options...
R34NRG Posted March 29, 2007 Author Share Posted March 29, 2007 sounds like ssome serious work needs to be done, and money lol. i think ill just stick with highflowing the original Turbo. alot cheaper, although i dont know if im happy with only 250-270 rwkws Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3016761 Share on other sites More sharing options...
evil_weevil Posted March 29, 2007 Share Posted March 29, 2007 happy with 250rwkw to 270rwkw!?!?! Have you driven a car with that power output yet at all!?!?!? Gees man, I hope your parents have you on their private healthclub membership. Seriously - from all your posts here, I seriously hope now you have done at least a couple defensive driver training courses. Sorry for hijacking the thread - but f**k me, you are going to hurt yaself. Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3016793 Share on other sites More sharing options...
R34NRG Posted March 29, 2007 Author Share Posted March 29, 2007 happy with 250rwkw to 270rwkw!?!?!Have you driven a car with that power output yet at all!?!?!? Gees man, I hope your parents have you on their private healthclub membership. Seriously - from all your posts here, I seriously hope now you have done at least a couple defensive driver training courses. Sorry for hijacking the thread - but f**k me, you are going to hurt yaself. lol mate my car atm is 220rwkws......i know all u forum geeks think im some noob but take it easi lol.... i dont even think highflowing my turbo would even get anymore then 260rwkws, any suggestions on at least hitting 280? without all that engine sugeryy Link to comment https://www.sau.com.au/forums/topic/162228-300rwkw/#findComment-3016803 Share on other sites More sharing options...
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