Jump to content
SAU Community

Will I Blow My Turbo?

hobodeluxe
 Share

Recommended Posts

hobodeluxe Apprentice

hobodeluxe

Posted
Posted

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
R31Nismoid Grand Master

R31Nismoid

Posted
Posted

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

RBwhatever Veteran

RBwhatever

Posted
Posted

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.

hobodeluxe Apprentice

hobodeluxe

Posted
  • Author
Posted

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...

limpus Mentor

limpus

Posted
Posted

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...

hobodeluxe Apprentice

hobodeluxe

Posted
  • Author
Posted

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..

joeyjoejoejuniorshabadoo Grand Master

joeyjoejoejuniorshabadoo

Posted
Posted

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

hobodeluxe Apprentice

hobodeluxe

Posted
  • Author
Posted

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

hobodeluxe Apprentice

hobodeluxe

Posted
  • Author
Posted
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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      Cas issue

      By GTSBoy · Posted

      The wideband reading is meaningless if it's not running. Why are you using shitty old sidefeeds on any engine, let alone a Neo? What manifold and fuel rail are you using to achieve that? Beyond that, can't help you with AEM stuff as I've never been their ECU/CAS combo.
    • Duncan
      RB26DETT Sketchy boost mod?

      By Duncan · Posted

      Manual boost controllers (where a little of the boost was bled off) were quite common back in the day, because they were cheap and easy. Generally they had a manual adjustment screw rather than being fixed like yours. Down side is they always bleed boost, not just when you want them to so an electronic boost controller that uses a solenoid will have less lag.
    • nash47
      Cas issue

      By nash47 · Posted

      Hello , im new here and i have A31 home build  RB25det neo stock eng / turbo  aem ems 2 blue connector  aem 3.5 map aem cas disk aem wideband connected to ecu  355 lph pump 550 nismo yellow injectors side feed aftermarket regulator  and won’t start with base aem tuner basic tune eventually flipped cas 180 degree so it triggers on correct stroke not in exhaust cycle  Now it won’t start Wideband reads 10 and 11 at lowest fuel setting  and will share calibrations soon for aem tuner i think something is wrong in aem tuner    please if you have any information, am very grateful         
    • nxh
      R34 4 door side skirt identification

      By nxh · Posted

      Legend. I ended up finding the facebook account of the owner of the first car i sent but sadly he deactivated the account. I think you’re right in saying it’s some sort of well done custom job. Really appreciate your help anyways.
    • GTSBoy
      boost source Size Garrett gt28 gen2

      By GTSBoy · Posted

      Totally equivalent. Stock often goes from the comp cover because that's where the actuator is also installed and the factory needs 2" of hose to make the connection - and it comes as a pre-assembled unit. They totally have a boost reference from somewhere between the turbo and the throttle(s). Oh, jeez. Just do it in M12 then. We don't actually care that much. I would expect any such AN converter fitting to rely on an o-ring or some other seal onto a flat surface under the flange of the hex**, because bolt threads are no intended to provide a pressure seal. unlike..... pipe threads. **which also requires a suitably flat and smooth surface on the turbo's boss to provide the seal.
×
×
  • Create New...