yea well aslong as i can get 400rwhp and its reliable its all good, im guessing im gonna have to get a big front mount and some 18g turbos to see anything over 600rwhp. i was kinda hoping to get into the 500 area since alot of the guys on tt.net are pushing around 20psi and getting those kinda numbers. but i guess it has alot to do with the turbos you run and the intercooler. i just like the sleeper look. thanks for the info i guess i still have a couple of grand to spend, but atleast the engine is strong lol

 

Wow...umm I am new to TR but I've been on 3zc for years. You should really check that site for technical info. (300zxClub.com (Nissan 300ZX Forums) - Powered by vBulletin) Z32's these days are making just under 500RWHP on STOCK turbos. I'm really not sure what "hybrid" turbos are and I've had my Z sin 2003. If you ask the Z experts the aftermarket side mounts are much more efficient than a big front mount. The stock internals are good for around 550-600HP so your Wiseco rebuilt should easily handle 600H...800HP if well tuned. Like was said earlier the head work is not going to show much improvement at this level but will come into play as you up the power. You failed to mention what pressure you're running your boost controller is set to or any other mods you've made so I have no idea what HP you'll make. I CAN tell you that I made 423RWHP on stock turbos with a ton of supporting mods. As for the injectors...in a Z you can pretty much equate what HP to injector size. i.e. 555's are safe to about 500HP, 740's to 700ish HP, or 850's to around 850HP. Take your pic.

 

im still running the stock injectors and my boost is set on low for 12psi im not going any higher then 15 till i get the ecu and some bigger injectors. i have down pipes and full exhaust stillen side mounts... all the other stuff i mentioned im just trying to make 500rwhp until the turbos go then i will attempt to go bigger lol

 

ok...for 500RWHP on stock turbos you're going to max out a single intake so a dual would be advised. You're also going to need to upgrade ALL off your intake piping from air filter to turbo. (The stock piping has been found to be a major restriction. (300zxClub.com (Nissan 300ZX Forums))) Your Stillen SMIC's may not flow enough air to hit that mark either but I'm not positive on that. You'll have to do some research.As for the injectors...at around $1000 a set don't think short term. You'll have to have your ECU reprogrammed for your intake & injector choices too. So plan your build & do it once. If 500 is your goal then 555's will do fine. If you think you'll want more then get the bigger inj's now. You'll also need a top notch tuner. The specialt Z guys that hit the 500 mark on stock turbos are some of the best.

Read over the link above and see if you still want "500 until the turbos go" it's not as easy as it sounds.

 

Thats a pretty interesting article i know the stillens have 2" piping im wondering if the stillens can just have the 2" attached to them or be modified? its really hard to see the different colors on those graphs though. im curious as to how much horse power the one guy with the stillen sidemounts ended up making? and what was the most horse power made on the z1 600 since thats pretty much what im running, the hybrid turbos i was referring to was what Z1 sells the stock turbos with bigger housing and chra wheels.

 

500hp on stock twins O_o

 

I'd like to see that.

last few, was probably the same one, in multiple articles, that I heard making that power weren't streetable.
required race gas and some crazy aggressive timing. The turbos were glowing red after a couple of dyno passes. It was done, but only to say it was done, not to leave it like that and drive on it.
Hardly counts if that's the case, at least in my book.

 

If its not reliable at that level, I dont care. hell I saw a 700hp stock block sr dyno.. then watched it blow up the next run.

 

thers been 700rwhp stock block 300zx out there that were actually tracked and drove well

 

yeah, for a little while.
and every so often, you get lucky with some freak engine, but that doesn't mean it is the norm.

If we are talking about the same 700 hp Z, that engine was rebuilt, and each and every component was tested several times before installing it. Not all rods are created equal. They basically got themselves all stock parts that were the best they could get and assembled the engine with insane precision. We aren't talking about some, grab parts out of the bin, and slap it together with a robot in an assembly line. Once it was together, they spent a rather insane amount of time tuning it. things like tuning spark time to 1/2 a degree. So yeah, if you go through all of that work, you can have that much power too. But why spend 50grand+ when you can get a typical rebuild kit and have a solid engine that makes the same power? for less than 3 grand.


This is like that freak t25 that got passed around for a while. it made over 300 whp but that doesn't mean all t25's can do that.
Hell, there were people that have boosted a stock KA to 40 pounds and drifted an event with it.
doesn't mean that it A) can be done to every KA and B) lasted longer than that event.

Stock turbo's just don't support 500whp. You would need every supporting mod you could get. A stupid amount of tuning, and you would need to run 18-20 pounds of boost. Even the dumb ass ricers on most 300zx forums will tell you how not safe 19 pounds of boost is for stock turbos. 14 is the average people do. You can occasionally bump to 16, but even that is pushing it, and chances are, your car will actually be slower because of the change in the power curve.