I would like to know some information concerning the 300zx. I dont know much yet. Firstly i would like to upgrade the turbos' prefereablly GT28r- besides the actual turbos what else is needed (parts) for them to function with the 300zx engine. Secondly i would like an engine rebuild since the engine is out to fit the turbos. What is an Engine Rebuild exactly and exactly what does it consist of. Thirdly I would like the 300zx to run about 350rwkw@15psi is this easily possible? Or would i need forged pistons? Fourthly all i know is... Turbo upgrades, Engine Rebuild, Bigger Intercoolers, Aftermarket ECU, Bigger Injectors and fuel pump, More boost. is this good for 350kws @ 15psi? What else specifically would i need? Finally how much should i be expecting to pay? roughly... I know its a long list but if i can get some advice so i know what to expect and what im doing.. CheerZ and thanks :thumbsup:
350kw at the wheels is some serious power...... & will cost some serious dollars to do it safely. Give UAS a call and they should be able to give you an idea of what you'll need to get that sort of numbers. Your list is on the right track but I can't see you getting that power with GT28R & only 15psi.
yep, might struggle to get to 250rwkw with 15psi boost. probably have to push it up to like 20+. can be done with standard internals if very careful with a/f mix. if pinging is avoided, engine should hold up, but if not.... rebuilt time. if can afford, go forgies. if going for rebuild, may as well get aftermarket pistons (if on budget, can stick with stock rods). engine rebuild? i suppose engine is basically stripped down, cylinders bored out, heads shaved, new rings, new valves, etc. big $$$ if done properly. parts? ecu can be reprogrammed, and this doesn't have to cost much. however, to get most out of setup (and to get it safely), custom tune will be required. this can be done on stock ecu (with eeprom), but need someone that can work with this. all required information is available on net if you care to learn yourself. check http://www.ztechz.net to get started. bigger injectors will be required. could get by running higher fuel pressure, but it isn't ideal. will work though. check ebay for adjustable fuel pressure regulators. if fuel pump is in good nick, it should be good up to about 350rwkw. i'd stick with it, and get a fuel pressure gauge to keep an eye on things at the level. it will probably cost you from around $5k up to however much you want to spend. i'd probably just keep engine stock and untouched (unless its already due for a freshen up), and bolt everything on. when it dies, then can spend more getting it done properly.
350rwkw dreaming, need massive turbos to make that power at 15psi add on head work for increase flow to reduce pressure.
well the 90 TT i got reads 90000km but everything is worn out- 100% sure its been tampered with, plus i got really loud lifters and get tiny bubbles popping on the radiator when the engine is running (head gasket?) so i was thinking if i slap on some mods the engine will be runnin really unreliably..wont it? Does the engine need to be tkaen out completely to rebuild it? coz if it does i might aswell do it together with the turbos?. How much power roughly from these mods? How much for forged pistons? and rebuild? has anyne done this to give me an idea of how much to expect so i can make a bugdet and dont get roughted thanks guys
Why do you want to do it at 15 psi? Why 15 psi? As long as the engine is running safely, does it matter what boost your running? As for mods: Stock: 225kW (9psi) Pop Charger, Underdrive Pulley: 240kW (10psi) ECU, Boost Jets: 285kW (14psi) Test Pipes, Cat Back: 310kW (14psi) Boost Controller, Intercoolers, Radiator Upgrade: 330kW (15psi) Twin Intake: 340kW (15psi) Injector Upgrade: 355 kW (17psi) Sport 500s: 380kW (21psi) With 18% Drivetrain loss or so, your looking at about 310 wkW. If you add nitrous kit you will hit roughly 350wkW on the bottle. Do some more research.
i think thats wrong Zductive As for mods: Stock: 225kW (9psi) Pop Charger, Underdrive Pulley: 240kW (10psi) ECU, Boost Jets: 285kW (14psi) Test Pipes, Cat Back: 310kW (14psi) Boost Controller, Intercoolers, Radiator Upgrade: 330kW (15psi) Twin Intake: 340kW (15psi) Injector Upgrade: 355 kW (17psi) Sport 500s: 380kW (21psi)[/QUOTE] is that at the fly wheel? and from 15psi to 17psi + injectors is atleast 20Kw+ On my friends zed he had 175kw at 12psi and 200kw at 14psi- 2psi made 25kw
To rebuild the engine not only requires taking the engine out, but stripping it down into little pieces, upgrading those pieces and putting it back together again. If you get the GT28R turbos you will also need to change your dump pipes to a 5 bolt version. Might also have to upgrade your clutch depending on what you have. Do you also have a full exhaust system? How much is in your budget? I'm doing pretty much what you want and starting off from 270kW and let me tell you, you could buy another zed with what you need/want :zlove: :zlove:
Shifter how much as it cost you im looking at say $10,000 is there like a price for 300zx rebuil? has anyone done this and know how much they paid= $?
Definatly not enough If you want 350kW your definatly going to have to tripple that, but probably even more money needed. For a significant amount of the year you might be without the zed too, so if you have another car or form of transport that will be a bonus. I would also imagine if you got a turbo to produce 350kW at 14psi, that the car would have to have a peak power of much higher than 350kW, as upgraded turbos at that level of power can handle significantly more boost than that. I had lots of fun with 260-270kW (at 15psi) and the engine was not 'rebuilt' either and using stock turbos/fuel injectors. (my profile will show you what it took to get). For $10K you could still do a lot to the car. However if you say the engine is worn, the $10K could be better spent on rebuilding it and the turbos.
certainly can be done for less than $35k. sure you could spend that much, but wouldn't say you'd have to. i think a decent rebuild will set you back $5-$7k (turbos not included), with stock internals. turbos are ~$2k. intercooler $1-2k. injectors $1k (although could possibly do without, but not up to 350rwkw). tuning/reprogramming $1k. clutch $1k. this brings us to around $15k (including other misc costs). add another $1-$2k for forged internals. lets say $20k to be safe. $10k is definetely do-able if you are prepared to do some of the work yourself. think the gt28r turbos will be pushing it for 350rwkw (at any boost). maybe look into mitsubish td05 turbos. great turbo, but will require at least an adaptor plate (and ideally aftermarket manifolds). pair of td05s probably can be had for around $1.5k. manifolds $0.5k (egg?) - $4k (pentroof ).
well ak dont listen to the pipsqink 350 rwkw is good power out of a z some people cant even make that power so they put a bottle on and in my opinion bottles are for babies!!!!but you need more than 10k..if your in nsw give uas a call and speak to john if your in melb call jpc
Sweet bro - what you got jpc300? I always thought it was very do able. Although not sure of exactly how much it would cost i could c the power on the zeds, i mean people can get 270kw from stock eninge and turbos? So why not after market turbos, forged pistons< (i have heard that the stock rods on zeds are already forged- true?) and more boost with injectors shouldn't be a problem for 350kw.. Ok anyways..so im going to get the engine rebuilt! Now suggestions step by sstep of what needs to be done..my friend j4Play quoted all stock internals for a rebuild... Although what can i go for besides forged pistons that would make a big difference and not too expensive? while still keeping the engine reliable? thanks guys.. ps: Im already seeing a awesome looking 300 with respective power representing, lol :thumbsup: cheerz
