Jump to content
SAU Community

Recommended Posts

True, no-one can tell me when any part will go bang, there is definitely plenty of load on the gearbox now but its not like I can drop the clutch at 7k, the power comes on smooth and the torque converter dampens the torque output. Perhaps it has some more in it? I would be happy with a safer 350kw by going to the GTX3076 and not maxing it.

jeez someones getting a little sensetive lol.

he doesnt know this, and yes i havnt read of one pooping after reaching its limits either, but i have also not seen or read about a VQ25DET running over 350kw at the wheels. have you?

and im pretty sure no tuner wants to 'pop' a customers car

No, not at all.... I just find it funny hearing that it will go pop running that kind of power when the only basis for comparison is either the RB25det or the VQ35de.

I know of none running 350kw at the wheels... but how many have tried? I've read about the 2.8L VQ25det in Japan running 315awkw but that is running a VQ35de crank and TEPS rods/pistons. I'd love to see and reckon it would be golden at around 350-360 with the 3076 as a reliable daily but it ain't my car nor money and I am only going on what I "feel" the engine could do. All speculation of course :)

Exaggerate much Aaron?

I just found out the VRS top end Nissan gasket kits are discontinued so I hope I can find a suitable gasket kit to do the job. The full gasket kits for a VQ25det through Nissan are nearly $600.

Ok, just for you Alex... :)

Aaron turned up today after he heard the new turbo arrived, he helped me rip his 3071 out and fit the new GTX3076.

I decided to fit the smaller 0.82 rear housing instead of the 1.06 Tial. I was pleasantly surprised at the improvement in response, it seems like it would actually boost off the line now with a little stall. The tune is set for Wednesday night so I will let you know how it pans out.

Sounds good. Great move on the housing. Will change it significantly I think. Video of dyno please!

Make sure get a really good accurate Indication of the speed, we didn't go past 6k because it just peeled over, but that was well off the speedo in 4th. I suspect it's good for 210-220 at your rev limit. Both my tachometer and speedo read significantly high.

Ok, will do.

Gladly the 18's put the informeter speed spot on, only the speedo in the dash is out 10k's at 100. I will try and get footage of that too during the run. What do you want displayed? Speed data will still only go to 180 but that will do as the dyno will be in wheel speed axis anyway.

On second thoughts, does the dyno just store your data from last time? If so, just use what you did your previous run on. You want to see the difference in response, and don't want to stuff it up by messing to much with the speed.

I'd love to see the 71v76 overlayed if possible.

Well, no great results yet, as soon as we strapped the car down to the dyno we realised the slight overheating issue I have been having for a while was actually a blown head gasket. We did a carbon test on the cooling system and got a positive result for exhaust contamination. It looks like either a head rebuild or another engine is going in. It's very similar symptoms to what Gleeson's car is having, perhaps its a common issue/fault? I may look into the pathfinder cooling mod after all Cam. :)

With the boost at around 19psi it was flowing over 330kw still so there is good power there, at least 350 comfortably, perhaps more. Now to find an engine. :(

Alex, the 76 graph looked almost identical to the 71 graph, just at lower boost. Transient response is much better though, looks like a good turbo match for the engine.

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

    • 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. 
    • Also playing with fire if they start to flow more air down low than what the stock twins can. It's not even up top you need to worry, it can be at 3000rpm and part throttle and it's getting way more flow than it should.
    • Any G40/1000 or G40/1250 results out there?  
    • You still want a proper tune on the stock ECU though. Stock tune + stock ECU with GT-SS/-9s is probably playing with fire if you're running more than stock airflow/power.
×
×
  • Create New...