Jump to content
SAU Community

Recommended Posts

Pauls GTS is onthe hoist now getting a new clutch and gearbox overhaul and suspension upgrade then its of to the plex on street ETs driven by Ant and my self so i guess the shit will stop then about this very basic RB25.

Have I read this right, Paul is not going to drive it? :headspin:

  • Replies 156
  • Created
  • Last Reply

Top Posters In This Topic

I hope he at least gives it a nudge himslef... whilst others may be able to ultimately pedal his car quicker, the fun is in driving them, not spending money on them and watching others bash around in your car :)

I wish we could find out who you are to see if you really are anyone.I think not.

I love the internet, no-one really has a clue who anyone else is :)

As if ur car is gonna be ready in 3 weeks, u r dreaming :)

Are you gonna be driving to WA by yourself? coz its one damn boring drive from Melbourne

do you know something about my car that i dont?

your such a keyboard warrior at times.

might be going over myself, not sure just yet. Wont take me that long to drive anyhow.

Will be good to have someone to make me coffee in the morning.

:) as long as the coffee is good over there

Have I read this right, Paul is not going to drive it? :headspin:

I sure as hell will be:D But seeing as Steve and Ant have spent alot of time working on my car then there also having a go with it down the drags:D Will be interesting to see the difference in results from 3 drivers on the same setup:D

I'm curious to see really how that GT30 turbs pulls down the 1/4.

 

I've been told by a few ppls here in sa the GT30 is too small for over 400rwhp.

 

You have the GT30 600hp? .82 exhaust a/r?

Ben's R34 GTT with a GCG supplied GT3040, ET 11.9 with a 1.9 for 60' and 120 mhp at Heathcote on Nittos.

How can you claim a time from a car that the owner can't do?? yeah maybe with my 128mph a more capable driver may have ran a lower 11 even maybe a high 10 but how could of I claimed that time when its really only an 11.7 car in my hands??

We often run GTR injectors to 450+rwhp with plug in Wolfs.

sorry to bring this topic up again but these figures ur getting with injectors....standard rb25 and gtr....i was talking to a particular tuner in sydney...he said once injectors are at 100% duty they are fully open and hence no matter what after market computer u got...thats governs the fuel squirted in...the only way i can see the injectors producing so much power is increasing the fuel pressure reg....that still has its limits and i quoted him the figures as stated and he said thats utter crap.....and even if u do manage to squeeze all the flow out of these injectors...how bout on cruising...the injectors would flood the motor wouldnt it??? is that a good thing?

I can get a RB26 rail for free so that is why it is an option, I have some 550cc injectors going in, I got them real cheap and the custom fuel rail is about $150-180. It's made from extruded aluminum, and they simply drill holes for the injectors, cap the ends and add inlets for the fuel

this was back in jan 2003

ur figure of 411 rwhp was produced in oct 2003 was there a bit of conusion with the injectors thought to be used ? :confused:

Ok we are just lieing and when wetake it to the track we will post the fake time slip just like when(changed now) ND4SPD made 480rwkw and ran a hi 10 at 140mph on 550cc injectors and cruised with better ecomomy than a stock GTR.If your East coast shops cant match what we are doing our shop is open for them to come over and see what we are doing or they can just keep discrediting us as a copout for their results on your cars.

Send them over!

How can you claim a time from a car that the owner can't do?? yeah maybe with my 128mph a more capable driver may have ran a lower 11 even maybe a high 10 but how could of I claimed that time when its really only an 11.7 car in my hands??

Haha, so the time GTR700 pulls isn't legit cause the owner didn't drive it?

sorry to bring this topic up again but these figures ur getting with injectors....standard rb25 and gtr....i was talking to a particular tuner in sydney...he said once injectors are at 100% duty they are fully open and hence no matter what after market computer u got...thats governs the fuel squirted in...the only way i can see the injectors producing so much power is increasing the fuel pressure reg....that still has its limits and i quoted him the figures as stated and he said thats utter crap.....and even if u do manage to squeeze all the flow out of these injectors...how bout on cruising...the injectors would flood the motor wouldnt it???  is that a good thing?

this was back in jan 2003

ur figure of 411 rwhp was produced in oct 2003  was there a bit of conusion with the injectors thought to be used ?   :confused:

Back in 2003 when I did 411rwhp on a DD Shootout 03 dyno, and the 436rwhp on the APA dyno at PAS WesternSalon we were running stock GTS-t injectors, with no issue at cruise, in fact running 14:1 at cruise:D

We have upgraded the fuel rail and injectors to stock GTR parts, and so far have achieved 450rwhp from a DD Shootout 04 dyno. There is still plenty of injector duty left in these. We just fitted an 044 pump, replacing the Bosch 911 pump, and at 450rwhp we had to trim the fuel back over 20%.

I was planning on using the 550cc 13B injectors, but seeing as there are a peak and hold style injector we thought the GTR injectors would work better.

Hope that clears any confusion:D

We have upgraded the fuel rail and injectors to stock GTR parts, and so far have achieved 450rwhp from a DD Shootout 04 dyno. There is still plenty of injector duty left in these. We just fitted an 044 pump, replacing the Bosch 911 pump, and at 450rwhp we had to trim the fuel back over 20%.

As everyone seems overly sensitive, im genuinely interested as im running GTR injectors...not trying to poke holes in your results, so...

What is the std rail pressure for an RB26, your RB25, and if you know an RB20? Im running std fuel regulator and like to keep it that way, but am running an 040 fule pump.

Some fun figures:

ND injectors 16600-54C02, stock GT-R + GTi-R

Flow rate / rail pressure / injector time

440cc / 2.55 bar

485cc / 3.05 bar

525cc / 3.55 bar

Can estimate they flow 562cc @ 4.05 bar fuel pressure, although this was not valided in tests.

So, assuming 3.55 bar fuel pressure, 95% peak duty, would flow 498cc per injector. With a BSFC of 0.6 (a bit rich) then the injectors would flow enough for approximately 490 horsepower/ 365kw at the flywheel.

Hypothetically if it was bumped up to 4.05 bar fuel pressure it could flow enough fuel for around 525 flywheel horsepower with 0.6BSFC, leaning it out could get you 630 flywheel horsepower.

This is assuming the fuel pump is up to the task and can flow enough lbs/min at the absolute rail pressure (base pressure + turbo boost).

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Well, I can recommend the partial AV system translation CD I ordered from Car Audio Workshop in NZ. Whilst it didn't address the date issue, it has conveniently translated on-screen menu items into English, and now allows the GPS-received time to be offset in hours rather than minutes, so I can display Eastern Australian time accurately ( and bump it by another hour when daylight savings starts ).
    • Yuh, if it's 45°C outside, my car is driving in it.
    • I'd be curious to hear more. Otherwise, have you driven a modern x-trail? I wonder how it compares. Here in Australia they are/were popular for rentals and fleet vehicles. I have been in some and my impression was they are bad. But, this may have been very different in the 2000s at a good trim level. Twenty years is plenty of time to make the model worse. I do very much agree with the 2 silver cars in the garage approach. But, not driving because it's too hot would not leave a lot of time in the year for many Australians. I don't think you need to worry too much unless the car has actual issues with overheating. 
    • Back again. I returned to Japan in Jul/Aug to spend time with the car on my birthday and remind myself what all the sacrifice and compromise is for. It happened to line up with the monthly morning meet in Okutama, which I have been wanting to go to for a long time. It's a unique event at a unique spot with really rare, interesting, and quirky cars. It's where all the oldheads and OGs gather. The nighttime scene at DKF certainly has its place and should be experienced if you're into cars, but there's too much bad attention and negativity around it now. IMO the better time is Sunday morning at DKF or Okutama; it's more chill and relaxed. I'm glad I was finally able to go, but not sure it's worth the drive from all the way from Nagoya immediately the day before, unless I was already staying in Tokyo for the days right before the meet, because you have to wake up quite early to make it in time. Funnily enough though I didn't drive the car all that much this trip because it was just too damn hot. While there were zero issues and running temps were nominal and the A/C was strong, RBs already run crazy hot as it is. Sure, it took it all like a champ but something about driving these cars in the ridiculous heat/humidity bothers me and makes me feel like I'm asking too much of it. I'm just me being weird and treating the car like a living thing with feelings; I'm mechanically sympathetic to a fault. Instead I was mainly driving something else around - a KX4(silver) 2001 X-Trail GT, that I acquired in May. There's a few different flavors to choose from with Xs, but visually it's the Nissan version of the Honda CR-V. Mechanically it's a whole different story as this, being the top-trim GT, has an SR20VET mated to a four-speed auto and full-time AWD! It was a very affordable buy in exceptional condition inside and out, with very low mileage...only 48k kms. Most likely it was owned by an older person who kept it garaged and well-maintained, so I'm really happy with how it all worked out. It literally needs zero attention at the moment, albeit except for some minor visual touch-ups. I wanted something quirky, interesting, and practical and for sure it handily delivers on all three of those aspects. I was immediately able to utilize the cargo and passenger capacity to its full extent. It's a lot of fun to drive and is quite punchy through 1st and 2nd. It's very unassuming -in the twisty bits it's a lot more composed than one would think at a glance- and it'll be even better once I get better tires on it(yes, it's an SUV but still a little boat-y for my liking). So...now I have two golden-era Nissans in silver. One sports car and one that does everything else; the perfect two-car solution I think👍 The rest of the trip...I was able to turn my stressed brain off and enjoy it, although I didn't quite get to do as much as I thought. I did some interesting things, met some interesting people, and happened into some interesting situations however, that's all for another post though only if people really want to know. Project-wise, I went back to Mine's again to discuss more plans and am hoping to wrap that up real soon; keep watching this space if that interests you. Additionally, while working in the tormenting sweatbox that is the warehouse, I was able to organize most of the myriad of parts that my friend is storing for me along with the cars, and the 34 has a nice little spot carved out for it: And since it can get so stupid hot in there, that made it all the more easy -after I was standing there looking at the car and said 'f**k it'- to finally remove all the damn gauges that have mostly been an eyesore all this time. Huzzah. The heat basically makes the adhesive backing on the gauge mounts more pliable to work with, so it was far less stressful getting this done. I didn't fully clean it up or chase the wiring though; that will happen once I have the car in closer possession. Another major reason to remove all that stuff is to give people less reasons to get in my car and steal s**t while it's being exported/imported when/if the time comes, which leads us to my next point... ...and that is even though it's time in Japan is technically almost up since it's a November car and the X would be coming in March, I'm still not entirely sure where my life and career is headed; I don't really know what the future looks like and where I'm going to end up. I feel there's a great deal of uncertainty with me and as a result of that, it feels like I'm at a crossroads moreso now than any point in my life thus far and there are some choices I need to make. Yes, I've had some years to consider things and prepare myself, however too much has happened in that time to maintain confidence and everything feels so up in the air; tenuous one might say. Simply put, there's just too much nonsense going on right now from multiple vectors. Admittedly, I'm struggling to stay in the game and keep my eyes on the prize. So much so in fact, that very recently I came the closest I ever have before to calling it quits outright; selling everything and moving on and not looking back. The astute among you will pick up on key subtext within this paragraph. In the meantime I've still managed to slowly acquire some final bits for the car, but it feels nice knowing there's not much left to get and I'm almost across that finish line; I have almost everything I'll ever want for my interpretation and expression on what it is I think an R34 should be. 'til later.
    • Thanks for that, hadn’t used my brain enough to think about that. 
×
×
  • Create New...