I'm about to purchase the NISMO Competition Heads cuz I'm tired of waiting for someone to find another solution to breaking 300whp mark N/A. Im getting it from z1auto.com but I dont know whethere to get the stage 1 or 2. Does ne1 know how big a power or drivability diff it would make? Well anyways, with that, Im hoping to get the titanium valves and the NISMO S1 Cams. I'd like to know if this is too aggressive a set up for the street/weekend autocross. Later on, if I'm not satisfied I'll have to work with the APS Plenum, Crawford Headers/Cats, etc(N/A Mods). Please help me with deciding what to put in.

 

Log onto my350z.com and msg jeff@performancenissan or better yet just call him up at the dealership in duarte. I dont know if he still has his z, but he has done literally everything NA you can possibly do including nismo heads.

 

You might have to get just about every n/a mods possible to break 300whp... THats alot of hp that your shooting for there on a n/a car. My guess would be that you'll definitely have to get the plenum , cats, and in addition you have to get the full cat back exhaust, intake, pully set, headers , ecu flash , and high compression pistons along with the heads, and s1 cams, to even have a shot a 300 whp... THats alot of money your going to spend buddy..

 

Yes. And to get that kind of peak HP, power will be a bit peaky and street driveability will not be too good. Better to aim a little lower and preserve some low end torque and smoother power delivery through the curve. If 1/4 mile times are what you are after, then a final drive ratio change wouldnt be such a bad thing either.

 

Man...thats gonna be expensive!!! BUt if you can do it more power to you.

 

What kinda #'s are you putting down now? I've also thought about the Nismo Heads.
What's the differance between the Nismo & Stock heads besides a smaller chamber for higher compression?
I too am going the N.A. route, because a lot of my buddies are F.I., I just wanted to be a little different. Like the other guys here have said & you probably aleady know, it's a costly way to go with HP gains in small increments. Unlike the instant gradification of going F.I.
So one thing I can do they can't, is win N.A. Drag & Dyno events. My only competion is other G' & Z's. Thier competion is not only F.I. G's & Z's but 500-800whp Supras & RX-7's!!!
I just returned from dynoing today, to try out my new Water/Methanol injection. Turns out I was using to big of an injector(jet) so I lost power, it richened up the A/F. I'm going back in a week or so to try some smaller jets.
My best #"s were: 268.3whp / 251.6tq. 1/4mile:13.86@101.6 on street tires.
I've done about all the N.A. stuff (mods listed below)you can do through bolt ons except Headers. Maybe looking at Headers, Cams w/matching Head work next.
SteveAreno...thanks for the heads up on Jeff at Performance Nissan, I've give him a call!

Pic of me trying to keep it sideways at the D.G.Drift Trails held in Atlanta. Dec.2004

RugRatCoupe / Performance Mods
Polished CRAWFORD "Z" Plenum, Random Tech. High Flow Cats, NISMO/R-Tune Lightweight Flywheel, NISMO/R-Tune Perf.Clutch, NISMO/R-Tune Pressure Plate, STILLEN Stainless Steel Exhaust w/ X-Pipe, INJEN Polished CAI, Silver Braided HYPER GROUND SYSTEM, EIBACH PRO-KIT, JDM NISMO/S-Tune Sway-Bars, JDM NISMO/RAYS/S-Tune 19"LMGT-4's, BRIDGESTONE S-03's. Cut Down Engine Cover, ROGUE ENGINEERING Short Shifter, PENNZOIL Synthetic Oil, JDM PIAA 7500 Plasma Spark Blue H-4 High Beams, Snow/Aqua-Mist Water-Methanol Injection, U.R.Crank Pully, TechnoSquare ECU...
Exterior Mods
Carbon Fiber C-Pillars, Rebadged SKYLINE/NISMO Emblems, Blacked-Out Lower Rear Exhaust Fascia, JDM Clear Corners w/PIAA LED's, PIAA Clearance Bulbs, Brushed Alum.Finished Front Grill, ANTI-PHOTO & LASER Tag, JDM Battery Cover, Polished Cam Covers, Carbon-Fiber Finished MAF, E.W.D. Carbon-Fiber Rear View Mirror Accents, NEW Rear Bumper! (damaged my last one in Route to a drift event)...
Interior Mods
FIVE-SEAT CONVERSION w/ Lap Belts & Interchangable Pad or Rear Seat Console, Hide-Away PASSPORT (G-Timer), 2004 Front Console w/Arm Rest, 35% Window Tint, NISSAN Drilled Pedals, NISMO Horn Button, SKYLINE Door Sills, Skyline Trunk Mat, Remote Window-Up Mod, VDC Memory Mod, Hidden Blue LED Water/Methanol Arming Rocker Switch located above Gas Pedal, Security LED (on clock bezel) Replaced with Water/Methanol Injection in Use LED...