Lithium

The one I was looking at was a 50 trim - but I found out that its actually a Stone Mountain (aka. dodgey quality). I am on the look out at the moment, I spotted this for sale but suspect it might be a bit much - 60trim comp. on it.... http://www.trademe.co.nz/Trade-Me-Motors/C...on-18846258.htm

Thanks Yeah I know 500hp won't be a number I'd see on 1.1bar ~1bar is a shorter term aim - but I'd like to set 500hp in my sights (turbo would be capable of it) so want to change as little as possible when I decide to raise boost levels. Admittedly I wasn't sure if 8psi would be too low or not. Truth be told, the motivation for having such a broad power range etc, is I've actually been FORCED to buy a new turbo as my R33 one failed, and would like to move forward but will only really be able to get it running with FMIC, ECU and the turbo and wastegate as well as stock fuel system - so run it on low boost initially and gradually bump up the pressure as I get more supporting mods with 500hp as a an option if I decide I want to crack the motor open. The concern I have is that the factory fuel system wouldn't be able to supply for 12psi on that kind of turbo, or do you think I'd be safe?

Preferring to dig up an old post than to start a semi-redundant topic - if I was was to aim for in the 400-500hp @ flywheel rangewith an RB25DET, running 1-1.1bar with a T3/T04E with .7 turbine A/R, do you think around ~40mm external (8psi spring) would be sensible? Cheers in advance

Interesingly enough, exactly the same as the above person - but running S-AFC2 instead of PFC and 10psi instead of stock boost.

Make sure your manifold bolts are all done up properly, and gaskets are all ok around the exhaust manifold. A leak between the head and the exhaust manifold causes sounds much like what you describe there!!! The sound can be caused by the two metal surfaces being shaken around by higher pressure exhaust pulses when you start hitting boost, but more likely to not be a problem under "normal" load.... might be noticable as a slight exhaust leak though.

Full boost not reached until ~4600rpm!!!!????

Cool - nice work, my turbo failed a couple of weeks ago and I am pondering whether to replace it with a stock or upgrade - but wasn't totally sure HOW much I'd have to change for an upgrade. Sounds like 2530(ish) sizing wouldn't be too hard on it. It'll be interesting to see how you go at the drags with the new found power and torque

Good to see you got a power gain What injectors/fuel pump are you running with it? The missfiring couldn't at all be a coil or something getting on a bit, and only really showing itself now its actually really having to work? What is your impression on the road of the 2530 vs. stock R33 turbo? Any more lag etc? It looks like the turbo drops off more than the stocker!!!

Feel the compressor wheel on the S2 R33 turbo, its nylon - and it feels plasticy, and the obvious not looking steel thing I am pretty sure the R33 S2 turbo is the same spec as the R34 one.

I'm not a "TUNER" etc, but if it were up to me I'd pick the likes of a GT3037S

I am pretty much in the same boat at the moment, and am not too sure that I can afford a reasonably larger than stock turbo - let alone the supporting mods right now. I have been doing some research, and it LOOKS to me based on the comments throughout here on GT2530s etc that a TD05-big 16G from a Mitsubishi EVO3 (and some others) would do a similar job. They seem to be good for the 340-380hp range, depending on where you look and how you set it up. I've actually not found any solid evidence of anyone running one on an RB motor, especially RB25DET. Does anyone have any thoughts on this? I realise I'd need to do some mods to use it - but considering I can get one for $500-600 its not too bad Mitsi turbos

Wellll - this year has been a pretty good one for me. Seeing as there is a place to vent! I'm not going to give a detailed version, as I would be writing for AGES - but: dramas up until now in rough order for this year: 1/ An aunty of mine who is/was "famous" passed away - closely knit family and a very interested media and generally nosy people make the greiving process not easy. 2/ The same month this happened, a close family friend - and best friend of my aforementioned aunty died in a firey car accident. Sent huge ripples through the already reeling close knit family and friends. 3/ Fiancee's sister commits suicide the same week I am going through the purchasing my new car routine, after a long battle with depression (hard on her AND the family) had supposedly been won. 4/ Another funeral past, car successfully purchased - me and partner discussing that the nice new car hopefully looks like a fresh start and maybe some good luck? Nah. As we are having this conversation someone throws a large rock at my car, narrowly missing the passenger's window (ie, partners head) and leaves a large dent in the door. Get to a friends place, talk to police etc - and get to.... 5/ ... a phonecall from the flatmate saying that partner's car has been stolen from home and his cars windows have been smashed. 5 (take 2)/ *phew* That last one not soooooo bad, partner's car not stolen... flatmate didn't realise her car was parked in my spot. Me and Partner go for a nice drive to unwind and lax out. One of the nice expensive 255" on the back of the Skyline bursts. Great. A new set of rear tires . 6/ Go to Speedtech drags (NZ based company holding a drag meet to do shake down runs in their car targetting 8s...) to try out latest mods. Turbo blows on warmup burnout for first run - we're 600kms from home. 7/ Got back home with a friend, arranged a truck and trailer to go back up and pick up my car - about 200km from home the truck breaks down. Arrange ANOTHER tow for the truck and trailer back to home, get that fixed... and THIS time successfully get back up, pick up the car and get it back home. That last one happened last weekend - probably about my most unlucky year, can't wait until its over!!!

Yes - but where there are RB31DETTs, there are also 3.4l 2JZGTEs....

Good reasoning A lot of people overlook the actual owning of the car., this is how I decided on a R33 GTS25t, sure there is faster - but its a joy to own for the price. I wonder why the japs never went with the 1JZGTEs if the torque of the 2JZ was the issue!?

I think there are "street" tyred Supras in the low 8s... if not almost quicker! Probably not Federals hahaha... but still. Supras have definately proved their worth on the track as well.... the 2JZ > RB26 for power making potential, that has been proven time and time again - in both stockish form, and with the works.

Theres a good question.... whole new can of worms even :uh-huh: I'd got with the Series 8 FD myself

Nononono.... the manual Supras are all under 1500kg, R32 GTR is ~1480kg, the rest are above 1500kg - and the Supras have less drivetrain losses. I've been in a couple of lightly modded JZA80 Supras, and in various GTRs from stock standard to VERY modded - and I've got to say in terms of in gear acceleration, in my experience an R32 GTR with intake, exhaust, 1bar and tuned PFC is probably comparative to a Supra with intake and exhaust on stock ECU. On a track strip the R32 would make the Supra look stupid though.

WTF? A Skyline is every bit a tourer if not more so than a Supra - being that it has more sizable rear seats. The Supra is lighter than GT-Rs, in some cases by near 100kg. Supras make more power than the equivalent mod GT-Rs, so that paired up with more gears, lighter weight and a much more solid power delivery you end up with something that accelerates pretty awesomely hard. Sure, a GT-R is typically quicker down the drag strip - but I've seen a nice video of a GTR and a Supra with similar mods (Best Motoring) doing a standing km race with 1/4mile marked off. The GTR got to the 1/4 mile mark first, and the Supra walked past it not long afterwards... making the gap bigger and bigger as it goes. I'd prefer a GT-R, but thats just because of taste - the "Concept" of the Supra I prefer... stronger bigger engine in a lighter chassis, I have a bit of a love/hate relationship with ATTESA.

Yes, but looking at your sig - you've gone and backed up what I have said by posting that yours did low 13s at 103mph with ~146awkw. I am pretty confident that your car would have not been completely stock at that point, right? That point I am on about is that the acceleration force is probably similar but the GTiRs have traction, and can apply full throttle through first and second gears helping the average acceleration - but thats not because of gearing or power delivery. Unless your car was as exactly as Nissan released it from factory when you ran that trap speed, the odds are the trap speed debate is sorted

Yep, I have heard about most of those things. I also happen to know someone in NZ that ran a 12.8 @ ~109mph, running intake exhaust and front mount stock intercooler pushing 18psi through the stock turbo with an interesting mix of 98 + other stuff to get ~100octane, which is pushing it a lot harder than what you mention - but all the same is a better time with little mods than you'd get with a 25t. Most of the other stuff you have said is completely inconsistant with stuff I have seen in NZ, and seeing as I've had a few friends who owned GTiRs (moved on long since) and recommended them to people, I have a healthy respect for them and know what they can do. However, non of this equates to 12s or 109mph trap speeds with minimal mods. I managed to equal and out power 2 GTiRs at seperate dyno days in my old car - ~140kw @ wheels for all times, and there were also a couple of R32 GTSts making that kind of power at these dyno days. My old car weighed 1260kg, and struggled to break 100mph, and the GTSts didn't break 100mph on the 1/4. How does it work that a GTiR which weighs not much less (no less than my old car) than a GTSt, manages around 10mph faster trap speeds with less time to get there with the same power? Having said that, one of the guys apparently did a 13.3 @ 100mph - with exhaust and 10psi, so the ET part of the story sounds realistic... the trap speeds seem way out though. Were they done at the strip or on a GTech type device?

Absolutely - I agree Please refer to the post I made which says they are slow? One of the points I was on about is that makes them seem faster than say a GTS25t is the same fact that makes them break.... I also agree on the stock for stock, but maybe with a few boltons things will change in a top end race. You CANT compare a 4WD with a RWD for dragtimes if you want to know what they accelerate. I feel I am quite justify thinking that my car which has now got intake,exhaust, 10psi of boost and a bit of tuning will walk away from a GTiR with the same mods - I will have a trap speed to refer to this weekend with my current mods. I also will be the first to admit that a GTiR with intake and exhaust would probably match the kind of time I am hoping for, however when we cross the finish line I will probably have a bigger smile on my face and a firmer push in the back... Its all about what you want in a car. I actually quite like GTiRs, but I feel that GTiR owners on here are implying that they are more than they are. Unless in Australia they are different to in NZ? My 103mph trap was done on a damp track with just a catback exhaust and a pod filter, I don't believe I've heard of any GTiRs trapping that high with those mods and stock boost - even with a lack of mechanical sympathy.

Supras are definately a performance package more solid than the R33 GTS25t, and definately comparable in ways to a GT-R - I've been in a couple of mildly modded ones and they go like stink, the 2JZ being strong enough to handle a lot more as well. However, I can't (personally) stand the styling of them and don't like the extra weight - I'd spend the difference on building an RB30 bottom end for an R33 GTS25t and making that much like a 2JZGTE (I think similar bore/stroke?), but in a car 100kg lighter, more space and is just a car I like more.

They have a LAUNCH! Thats all they have thats that incredibly special, though I guess in NZ we have heaps more nasty Japanese import cars running around on our roads. GTi-Rs are no more special (in most cases, less...) than a WRX, or EVO. They have a huge launch and accelerate fairly well once they get going - seeing as the 60ft time is almost a defining factor of a drag race... that launch means HEAPS. The SR20DET is quite good for making a lot of power, but the power tranmission fuse that is the gearbox isn't so keen on it. I know plenty of people that have owned them, and sold them on for EVOs etc.

Close as buggery to cracking 13s.... if not JUST scratching through.

Yeap, running a JDM H22A from a Gen4 Prelude... rated at 200ps stock @ flywheel. So as to not pollute this thread too much with non GTiR-Skyline stuff, a link from not long after I sold it with other people who know about Hondas and tuning them etc (in it contains a link to EVEN MORE people with Hondas and tuning them). I have been told there is no way my current car makes as much power as it does with the mods it has by non-Nissan owners, I guess its just what you know aye? "Quick" Preludes? "Quick" Preludes 2