Building up the 350z to get 380rwhp with a turbo

[colbol89]

So here's the deal. I recently sold my 2006 Mustang GT in favor of buying a 350z. They are a much better built car and get better gas mileage. Now onto the fun part:

I'm looking to get my 350z blown, preferably with a turbo set up. My horsepower desires on the car is getting 380 rwhp (not crank hp). Combined with my mechanic friends I intend to install the kit on my own time though I'm going to have it professionally tuned. So here's where I need some help. What would you recommend doing to achieve my goal of 380rwhp, I'm guessing there would have to be some replacements on the internals of the engine but specifically I'm looking for all the brand name parts (Single/Twin Turbo set up, intercooler, piping, head gaskets, bigger injectors, fuel pump, boost controller, gauges, etc...) and their costs needed for this build. Also why one brand over another. I HAVE READ THE TWIN TURBO DONE RIGHT post but didn't feel that all of it would apply to me seeing as I was shooting around 200hp less than him. The MOST important part of this build is going to be the fact that it needs to be really reliable. No point blowing all my cash to just blow my engine. Also haha would running a 50hp-75hp shot of nitrous be practical?

Okay and on a side note. I've had a heated racing rival and last we raced my modded Mustang took his down by about 7 car lengths. Now I'll be fair, he's an appalling driver, misses gears often, and lost in his cammed, 4.10 gears, full exhaust set up, 305mm rear wheels with premium tires, ram air intake, full suspension set up, and running on a high end 93 octane tune to a f***ing bone STOCK Civic Si. He's now adding a Kenne Bell Supercharger on there and I'm intent on putting another 7 car lengths on him...again even if he's blowing his car too.

[colbol89]

UPDATE. New goal of 350rwhp for daily driving purposes

[Retired Chief]

350 to 380 rwhp on the stock Z motor is nothing. You can go up to 400rwhp on the stock internals. Beyond that and you're asking for trouble. The transmission and rear end are nearly bullet proof. I've read of many people putting out over 600hp at the crank and over 500whp and using the stock transmission and rear end.

[tj_rossiter]

this is the kit im getting http://www.turboneticsinc.com/...id=65

also look on injectedproformance.com

[R350zz33_2.0]

the new hr motors are capable of holding 600whp. if you tell us the year z it would help greatly.

[colbol89]

Ah I could have sworn I posted the year but I guess not. Okay so I'm debating between the 05-06 Z or the 07-08 Z. From my understanding the tuning would be a lot harder with the dual throttle bodies so I'm leaning more towards the 05-06 Z.

On the turbo kit you listed it said Non-Rev up catless engine. How exactly do I know if I have the Non-Rev up engine? I'm going to be getting the 6 spd manual regardless of the year I purchase and with that kit are you sure I wouldn't need to do something about the internals on my engine? Just seems strange for the head gaskets not to want to expand with the added boost I'd be running.

[rmezz13]

Ah I could have sworn I posted the year but I guess not. Okay so I'm debating between the 05-06 Z or the 07-08 Z. From my understanding the tuning would be a lot harder with the dual throttle bodies so I'm leaning more towards the 05-06 Z.

On the turbo kit you listed it said Non-Rev up catless engine. How exactly do I know if I have the Non-Rev up engine?

2007+ = HR motor (no Rev or non-Rev)2005 anything but the anniversary, track, nismo are non-Rev2006 and 2005 Anni, Track, and NISMO are rev-up motor

A greddy TT kit is what i would go with if i was going turbo.A Procharger is what i want tho, and i want 380whp which is pretty easily achieved with any of the turbo kits and SC kits for this car, with a shop tune. Infact 380 is somewhat conservative since everyone seems to take it to the limit (400 or more whp)

GL with what ever you do, but i say SC all the way especially shooting for only 380whp, less lag.... way less, almost not noticable and easily reversible if you decide to build the motor and go for a 700whp turbo monster or something...

My .02

[colbol89]

Haven't heard much about this company but seems like a pretty solid deal on a turbo. http://www.importpartspro.com/apssitukit03.html

Let me know what you think and I assume this kit could easily get me to my 380rwhp gains goal.

Also what gauges should I look into getting installed. Boost gauge, oil temp, and what else perhaps?

[R350zz33_2.0]

i would get a 07-08 since they are stronger motors the limit of the de was 400whp the limit of the HR is upwards or 600whp you will also be able to stay in boost longer. If this car is going to be your daily driver i advise against going with greddy, the greddy kits don't work with your front bumper core support or something like that so if u get in an accident insurance will be very difficult when they see u dont have that . i would go with altered atmosphere they offer there custom tt kits for 12k that includes parts installation and tuning. i believe they use HKS F-con V pro to tune

[colbol89]

Well I feel that the dual TB's would make for pretty hard tuning. As for the motor, I'm going to be completely building it out with my friends. They're unreal mechanics who offered to help me custom build my own TT set up and with most of the motor work. We talked out most of the parts we'd need to buy and ran the numbers but drew a blank on a transmission that could hold up to 650rwhp. Any ideas on one that could do it and costs?

[Retired Chief]

First, dual TB's are not hard to tune. There are shops near me that do it all the time. Second, as I stated in my previous post, the 350z transmission and rear end are nearly bullet proof. You can put over 600hp to them with no problems. I would, however, swap out to a lighter flywheel. The stock one weighs a ton. Last, you CANNOT put 600hp to the stock internals of a 350Z motor, whether it's the DE or the HR. I mean, you could do it but your engine won't last long.

[evildky]

for a daily driver with only 350 whp goal, I suggest SC, lower intake tems will be better for your engine in the long run, and safer in general

[colbol89]

Can you put down a source or two that says that a bone stock transmission on an 06 350z can hold over 600hp. I find that very hard to believe that the transmission would be that over-engineered in a car pumping out stock, only 300hp and 263 ft/lbs of torque.

[rmezz13]

Can you put down a source or two that says that a bone stock transmission on an 06 350z can hold over 600hp. I find that very hard to believe that the transmission would be that over-engineered in a car pumping out stock, only 300hp and 263 ft/lbs of torque.

For the record, its going to cost a ton of money to make it 600+ whp. Start pricing trusted name internal parts. If you build it with junk, you will get junk (remember this).Brian Crower, Cosworth, JWT are a few. BC heads would cost about $3k after port, polish and the machine shop puts them back together for you (assuming your mechanic friends have the tools required for taking them apart). Just remember this is no 4 banger turbo car. You're talking two turbo chargers and two heads (DOHC) and 6 pistons. Comes out to be double the cost of a built DSM motor... i've checked, without labor. My buddy has 15-20k in his EVO and is only making 430AW (conservative/safely) and has to spend about another $3-$5k just to be able to support a tune for 500awhp, so honestly you would be looking at about 30-40k, no BS.

[colbol89]

Umm depending upon how much work your buddy with the Evo did on his own you could easily shave off thousands of dollars by not buying a turbo kit and building your own if you have the time, energy, and know how, which is precisely what we're going to do. But don't worry about the cost of generating the horsepower. I'm merely trying to find out what transmission would be able to safely hold up to 600hp, where I could get it, and how much is it. That's really the last little snag I've run into before I can start gathering all the parts together

[ZedHead]

This makes no sense, why do you want a transmission that can hold 600 if your only building it for 350?

Just use the stock transmission, get a spare transmission and cryo treat the gears. And yea, dont be looking at the cheap stuff, if your gonna do it, do it right. It will be cheaper in the long run.

[Retired Chief]

Can you put down a source or two that says that a bone stock transmission on an 06 350z can hold over 600hp. I find that very hard to believe that the transmission would be that over-engineered in a car pumping out stock, only 300hp and 263 ft/lbs of torque.

No, I can't. I found most of it while searching the web but didn't save the links. However, there's one user here on NICO (Jet Pilot), who has a Z that puts out 670HP to the crank and 565HP to the wheels. If I'm not mistaken, he replaced the clutch and flywheel but the rest of the transmission and rear end are stock. Here's a link with the specs/mods for his Z: http://www.cardomain.com/ride/3083811