Jump to content
SAU Community

Recommended Posts

hey guys, thought id run it pass the general consensus - will i blow my turbs?

i have rb25det neo

mods i have:

big frontmount

big plenum

bigger fuel pump (forget what hp)

microtech ecu

3" exhaust (no cat or rez)

air filter

bleed tee

stock: internals - turbo - injectors - coilpack

had a dyno run @ APC brisbane - and made 243rwkw on vpower... but no idea what psi im running atm...

at stock 7-8psi was 200rwkw

when i picked up the car - the dude at the front desk did not know cuz the guy who tuned it wasnt there at the time.

he did however tell me that my boost was taken to the highest limit and reduced somewhat to keep it "safe"...

(i dont have a boost gauge and i will call them tomorrow..) But i was wondering if anyone else has a setup similar to mine; what boost level you guys think id be running... but most importantly; you guys think its safe at this power level for my turbo...

cheers for your input yall!

Link to comment
https://www.sau.com.au/forums/topic/219253-will-i-blow-my-turbo/
Share on other sites

10-12psi = safe. Any more is reaching failure point.

243rwkw is a flat fudge too dude, should be around 200rwkw at the most really.

Not sure why you would put all that "big" stuff on there and run the stock turbo though, just adding in bad response to the setup for no reason at this point

242rwkw for a standard rb25 turbo is impossible. 242rwkw for a highflowed standard rb25 turbo is possible.

Standard injectors would max out before 242rwkw, so thats an immediate giveaway that the provided kw output is incorrect and that its just a standard turbo. Its 200rwkw on average for a standard turbo.

as stated 12psi max for standard rb25 turbo's. The ceramic exhaust wheel is prone to let go at anything higher.

yea, im pretty sure its not high flowed - plus i just gave it a proper strap and its not feeling near the pull my friend gets in his 254rwkw r32... so.. i guess ive been had.. damn you APC!! :D

thanks for the input guys! i guess ill question them about it tomorrow when i ask about the boost level...

I think the first thing you should do is get a boost gauge to see how much boost you are running...regardless of whatever amount of boost they say the car is running...

That said right...the way a car feels can be deceiving...the comment you made about your car feeling slower than your mates R32 is kinda similar to how i felt when i went from driving my 210rwkw R32 to a mates 240rwkw R34...the way the power is delivered all makes the difference...but i can confirm that his car was definitely making alot more power...its just that it came on so smoothly that it made it feel not as quick...

yea, cheers limpus - boost gauge is my next thing-to-get... and youre probably right about the ride.. maybe i need to drive it a bit more - to appreciate the tune..

ill post a scan of the dyno print out tomorrow..

tho i gotta say ive got a growing suspicion that they have taken me for the biggest ride ever..

to fix a leak from a grub screw on the oil sandwich plate..

pre-dyno inspection - spark plug clean - replaced fuel hose from pressure regulator and replaced efi hose clamps. Installed bleed tee, adjusted air fuel ratio. adjusted boost setting and timing maps. they charged about $950..

Ive only ever once had a tune in the past - it cost me $250-300.. not that i mind spending the money but its the principle - why would they fudge the results of the tune... i mean, what else did they lie about - or i could be getting ahead of myself i guess..

its not what you pay... its what you get.... if the car is running $950 better thanits all good.... (although you dont seem to think so :D )

they lie so that you come on here and tell us how much power they got from your turbo and then we all go there for our tunes because they are soooo good!... not really a well thought out plan as they'll more like lose custom

well.. they did also fix a spring in the BOV. the labour was $720 all up excluding the parts.. i just hope they did tune it and didnt just turn up the boost or something.. im just not a fan of being lied to - if they didnt hype up the dyno results i would have been cool with it..

lesson learned for next time i guess.. :D

well.. they did also fix a spring in the BOV. the labour was $720 all up excluding the parts.. i just hope they did tune it and didnt just turn up the boost or something.. im just not a fan of being lied to - if they didnt hype up the dyno results i would have been cool with it..

lesson learned for next time i guess.. :(

i was sarcastic about the spring btw :D

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 it's 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 damn hot in there, that made it all the more easy to remove all the damn gauges that have mostly been an eyesore all this time. Huzzah. I was standing there looking at the car and said 'f**k it'. 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...