Welcome to Zclub - Australia's Largest Nissan Z/G Community
Register for FREE to gain access to all of our features. Once registered and logged in, you will be able to create topics, post replies to existing topics, give reputation to other members, get your own private messenger, post status updates, manage your profile and so much more. This message will be removed once you have signed in.


  • Content count

  • Joined

  • Last visited

About IanzZed

  • Rank
    1st GEN (S30)

Profile Information

  • Gender Male
  • Location Echuca
  • Car 2010 370Z 6mt

Recent Profile Visitors

358 profile views

IanzZed's Activity

  1. IanzZed added a post in a topic Best project car: Regular 370Z or NISMO?   

    Hi Ralph
    Not sure how you went with getting a Z, but I 2nd Marsh's list of mods, except I would do the the brakes 1st, my 1st full track day in my Z a few years ago at Sandown, 2nd lap end of the main straight' pedal went to the floor at around 190kmh. turned in and pulled the handbrake on. (brake fluid boiled)  all ended surprisingly well. DBA4000 slotted brake rotors are a cheaper option that work well on the track and road. I had set on but now have 2 piece rotors for weight. Also use hi temp brake fluid, braided brake lines and race pads.. = $. I made brake cooling ducts, (that look remarkably like Stillens) they definitely help.
    Short of forced induction, 230 - 235kw with list of standard mods, CAI,Full Stillen exhaust, headers, with hi flow cats, lightweight pulleys, lightweight clutch, lightweight flywheel. Full dynotune at Revzone peaked at 235.3kw at the wheels. They said this was the most they had seen out of a N/A Zed. Have just put in  JW C2 hi lift cams and changed to E85, but can't get to the dyno due to covid. Am hoping to get around 250kw at the wheels.
    I can keep up or beat pretty much anyone in the corners, but get rolled on the straights by the bigger turbos and big v8's. The Zed is a lot of fun and is really easy to drift around bendy bits, is easy to control in slides and takes a lot to get out of control. (see below about traction control )
    I had a half roll cage but have gone full national roll cage after seeing a few crashes that did'nt end so well..  wife was very supportive of this mod. Race seat and 6 point race harness as standard seats & belts are not so good if it all goes wrong. . if you are tracking regularly get at least a half cage, apart from the crash safety aspect it gives you a place to mount a proper race harness and stiffens the car up considerably. Keep the standard belts for daily driving and to keep legal.
    Engine bay gets hot, so getting heat out is useful. I have a vented hood, plus removed part of the rubber seal at the back of the engine bay that seals  engine bay and the hood.
    Cusco 1.5 diff with 4.08 ratio. will change back to 3.69 as 4.08 messes with the synchro match. Not sure how much you would like this diff on the road as they are not fun at slow speed. a lot of banging and clunking around town, when reversing etc.
    Nissan seats weigh 25kg each, so they are gone. Velo race seat and 6 pt harness.
    MCA Coilovers. Reds. car feels much more planted, but I didn't gain any time out of them over the eibach pro lowering springs they replaced, which worked surprisingly well.
    Zeds need about -3.5o front -2o rear camber and a bit of tow to corner well. I run 295 rear 265 front 18" on 11" and 10" rims with a bigger offset. A050's Medium Compound. these are a good tire. thinking of going 295 all round.
    my Zed is now track only, I live a long way from any track so were trailering it in any case, and the full cage makes it illegal, along with being too low, now no cats, and nothing much left inside the car.
    Traction control. if you are going to track your Zed, consider putting a Vdc disable switch in. When you turn off Vdc, it doesn't really go off, and lurks in the background waiting its chance to kill you when you least expect it. search this site for Vdc to tell you how to disable it completely. i have no traction control as I removed anything that was related to it after it twice decided that it should intervene at Sandown resulting in a spin and and an off track excursion that could have ended really badly, and once at PI at turn 8 at ~180kmh on a slightly damp track. I ended up in this crazy tank slapper when I did a steering correction for a bit of a slide and Vdc in its infinite wisdom applied a bit of braking which wasn't helpful, anyway, you end up fighting the vdc for control of the car. its sort of like having a crazy person with 4 brake pedals that starts applying them when the car starts to step out a bit. Since its been gone, no issues.
    Biggest thermostatically controlled oil cooler you can fit. Power steering cooler also. No oil cooler I was hitting 140c in winter. Now max at ~110c in summer. E85 should bring that back a bit more.
    things happening now
    Diff and transmission coolers. Diff and gearbox get quite hot and gbox gets quite crunchy after a few laps.
    if you cant beat them, join them.Topgun SC kit arriving late October. Looking for 600+whp.

  2. IanzZed added a post in a topic Cold air Intake   

    Stillen Gen 3 Ultralong tube cold air intake added 13kw on the dyno.
    Stillen Headers, HFC's and CBE plus CAI dyno'd at 235kw.
    Stillen Lightweight flywheel and clutch minus the HFC's (didn't like the sound) was about 225kw.
    I posted the dyno charts some time in early 2013.
  3. IanzZed added a post in a topic Exhaust Exhaust Exhaust - Which one?   

    That's awesome.... 700bhp.   on the road or on the track?
  4. IanzZed added a post in a topic Exhaust Exhaust Exhaust - Which one?   

    That's pretty consistent with the dyno results I got from my Z with same configuration except full Stillen, not tuned yet.
    I took the HFC's off due to noise, but put on lightweight pulley and Flywheel. dyno is close to the same.
  5. IanzZed added a post in a topic Exhaust Exhaust Exhaust - Which one?   

    Not so amazing. without messing with the engine, 250rwkw should be achievable.
    I drove a Ferrari 458 spyder in Italy a couple of weeks ago, (400 euro - 30mins!! ), 575hp NA V8. 1500kg..
    This was amazing. The noise this thing makes at 9000rpm pushes all the right buttons... :-))
    To anyone contemplating visiting the Ferrari museum in Maranello, save up your pacific pesos and give it a rip.
    Stillen SC is back on the shopping list...
  6. IanzZed added a post in a topic Exhaust Exhaust Exhaust - Which one?   

    CAI, Headers, HFC and CBE, but took the HFC's off until I can do something about the noise. Will try the resonators.
    Hasn't had a tune, but with everything installed the dyno shows the AFR ratio is still good.
    Was 235kw on the dyno with the HFC on. Was about 223KW without. Since putting the lightweight pulley and flywheel and clutch on, back to 230kw on the dyno.
    The dyno guys reckon there could be between 10 - 15kw in a tune, but no guarentees. When I get time will get this done.
    Is much more interesting to drive since the lwp and flywheel were installed.
  7. IanzZed added a post in a topic Exhaust Exhaust Exhaust - Which one?   

    Thanks. I'll give it a go when i get time..
  8. IanzZed added a post in a topic Lightweight Flywheel and stuff   

    Thanks for the comments guys.
    Read the thread on the input shaft bearing (and a whole bunch of other threads on the net) before i went down this path. 
    as far as the harmonics go, see link below, is a reasonable explanation of what the pulley does on the 370z.
    I searched and searched, and only found oblique references to LWP's and oil pump failures on the 370z.
    Does anyone know anyone who's actually had a failure???
    The way i look at it, if you're chasing hp, you rolls the dice and takes your chances....
    Have had a chance to do a few clicks on it over the last few days, and i'd have to say i'm impressed...
  9. IanzZed added a topic in Engine & Drivetrain   

    Lightweight Flywheel and stuff
    Light weight pulley and flywheel / clutch installed, zed back today.
    Dyno'd at 231.3kw.
    clutch out, neutral, at idle, as per expectations, sounds like a few tools left in gearbox. but i can live with it. New clutch is a bit heavier.
    Driving in stop start traffic will be a bitch. without the mass more revs required.
    Engine spins up quicker. A big difference in spinning mass between old parts and Stillen pulley, flywheel and clutch kit.
    No noticible change in vibration. Motor hasn't exploded yet, but, early days... ;-))
    Gained (recovered) a few KW's at the rear wheels.
    Dyno results attached. (370z_2)  Yellow line is just the lightweight pulley. Blue line is the pulley and Flywheel.
    This is without the Stillen HFC's which i removed a few weeks ago cause i couldnt stand the noise.
    Last dyno (370z_1), with CAI, headers, HFC's, and cat back exhaust, tipped in at 234.9kw.
    Previous dyno without HFC's was 221kw and 225kw, two seperate occasions.
    So realistically, the lwp and lwfw have recovered somewhere between 6 and 10kw, and shed more than a few kilo's.
    HFC's going back on in the next couple of weeks, i think i have a solution to the noise, so will be interesting to see what the dyno says.
    Target is 250kw (with Tune) from NA motor.
    A couple of notes on the Dyno.
    Apparently makes little difference whether 4th or 5th gear is used, 5th will read same or slightly higher due to increased resolution of the calculation, related to the time taken to get to full revs due to gear ratios.
    Mainline dyno's are used at a lot of competition meets, and are regarded as being fairly accurate. i'm sure that everyone with a dyno will reckon there's is the best, at the end of the day, you go with what you have access to. :-))
    • 6 replies
  10. IanzZed added a post in a topic Stillen Supercharger- waste of time on a Semi-Auto?   

    Stillen SC is my next thing when i finish squeezing the last KW from NA engine.
    Not sure about other states, but most likely requires an engineers cert in Victoria, 370z doesnt come standard with SC or TT's.
    So, maybe worth contacting your local friendly engineer before starting the installation.
    Stillen sc is a bit more like a turbo in operation, as it is a fan, not a compressor like the roots,
    See also Vehicle Standards Bulletin 14.
  11. IanzZed added a post in a topic Intake mistake?   

    did a fair bit of research into this, most modern engines, including the VQ are internally balanced, so provided the lightweight bits are balanced then no issue.
    there is an issue around undamped noise due to no damping in the pulley or flywheel, but it doesn't affect the motor.
    as far as the NVH and harmonics go, see the link, which describes it pretty well, even tho he's pushing his own barrow.
    This topic was covered exhaustively in the US Z car forums, and various other forums / sites, and the net result is the same, no real issue.
    Sooo, i'm not worried.... really I'm not, not even a little bit ;-))
    if my engine disintegrates into a cloud of broken crank bits and oil smoke, then everyone can shake their heads and say we warned him...
  12. IanzZed added a post in a topic Intake mistake?   

    The lightweight pulley. considered the underdrive, but not sure on the net result of spinning all the front bits slower.
    KF365. Checked out a couple of the videos on the link above. Nice. exactly the same engine mods + the uprev tune.
    once i get the lightweight bits in it's going in for a tune. the dyno guys reckon that there could be 10 - 15kw in the tune based on the AFR on 235kw dyno. (HFC's installed)
  13. IanzZed added a post in a topic Intake mistake?   

    double the power.... hey, i'm goin for the 20" chromes, to hell with the engine mods..... :-))
    Clutch as well.
    Will post dyno and drive impression when installed.
    Removed HFC's (stillen) after a few weeks's, not young enough for that amount of noise.. :-((
    Still contemplating how to soften the bellow without losing the power. the HFC's added 14kw at the wheels, so keen to get it back. 
    if anyones got any ideas, i'm listening.
  14. IanzZed added a post in a topic Intake mistake?   

    h,mmm, interesting comment, Scotty's customs.
    8000km on the clock when I put the gen 3 intakes on, so no, filters not full of crap... dyno'd stock and then after each mod.
    have posted dyno results for all mods on another thread. 235.something kw at the rear wheels. My comment was Stillen claims on power gains are pretty much spot on.
    have dyno'd every change, so I know what each mod does.
    stillens dyno results. http://www.stillen.com/prodfiles/402852~dyno.pdf.
    Will post my dyno results when I get time.
    Lightweight pulley and flywheel just arrived, so these will be on and dyno'd in the next couple of weeks.
  15. IanzZed added a post in a topic Intake mistake?   

    BGTV8 covers it nicely.
    i have the Stillen long tube intakes, added near as 13kw on the dyno.
    oil temp gets hot on hot days in traffic.
    They need airflow to work.
    I dont find them overly noisy, but you know their there.
    Not my daily drive, but dont have any problem heading into the city
    BUT, coupled with the other mods on the exhaust, driving through winding mountain roads becomes a bit more entertaining, both aurally and physically.
    would i take them off? Uhmm, not.