Jump to content
SAU Community

Boost on stock GTR

marchGTR

By marchGTR,
in Engines & Forced Induction

 Share

Recommended Posts

marchGTR Collaborator

marchGTR

Posted
Posted

Hi all,

I have just bought myself a bog stock R33 GTR(purple!) and was wondering if its OK to remove the boost restrictor even with a stock exhaust?

I will get a new exhaust in the future, but tempted to remove the restrictor in the meantime??

I have looked through previous threads but havent found the answer to this question

Link to comment
https://www.sau.com.au/forums/topic/37776-boost-on-stock-gtr/
Share on other sites
400kwgtr Rising Star

400kwgtr

Posted
Posted

removing the restrictor will give you about 15psi, which is around double the standard boost. Doing this with a standard exhaust is fine, you wont get as much power as you would with a 3 inch system. It will be a big improvement and the car will kick ass. To be safe you should get a new boost guage and monitor the exact boost the car is producing or you might end up with a little ceramic turbo wheel stuck in your cat converter...

marchGTR Collaborator

marchGTR

Posted
  • Author
Posted
removing the restrictor will give you about 15psi, which is around double the standard boost. Doing this with a standard exhaust is fine, you wont get as much power as you would with a 3 inch system. It will be a big improvement and the car will kick ass. To be safe you should get a new boost guage and monitor the exact boost the car is producing or you might end up with a little ceramic turbo wheel stuck in your cat converter...

Thanks for your advice..ill get a boost guage and take it from there.

  • 1 month later...
Ronin 09 Grand Master

Ronin 09

Posted
Posted

Sorry to dig up a dead thread, but I have just noticed that my R32 gtr std boost gauge goes over the +7 std reading when boosting.

It has a cat-back (soon to be full system), and I can't feel the boost restrictor around the yellow dotted line (removed?)...

My question is, is this safe turbo wise, and, what equivalent PSI or bar should I expect? I will try and hook into a boost gauge this weekend...

RBVS Community Regular

RBVS

Posted
Posted

when you say remove the restrictor what is that in relation two. If its a restrictor in the vacum line to the actulator removing it would make you run less boost, as more air is going to hit the actulator sooner thier for opening the wast gate sooner??

or is there some kind of ecu restrictor?

Unless the restrictor is in line with T peace and soliniode, then removing it would allow the soliniod to bleed more air, in turn raising the boost. Can somone clear this up for me?

Ronin 09 Grand Master

Ronin 09

Posted
Posted

I'm talking about the brass restrictor in a vac line on the driver's side of the car - it is highlighted by a yellow line around the vac line...

anyone want to tell me what is the PSI if the factory gauge is reading over +7 ??

dangerous or not?

Ronin 09 Grand Master

Ronin 09

Posted
Posted

Ooh crap - they are stockers - at least thats what I thought.

I bought it (apparently) stock, only change is I've bolted up a cat back.

I'm sure the restrictor is not there - I'll go take a pic in a sec...

OK i can't feel any brass thingy in the vac line around the yellow line, but the buldge between the clamp band and the yellow line - is this where the restrictor is?

Cheers

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

    • Kapr
      What brakes on R34 GTT(Europe)

      By Kapr · Posted

      Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
    • Marek
      Hi everyone.

      By Marek · Posted

      Since winter isn't that harsh anymore in Poland, i will definetely drive it 365 days a year 😉. But if the snow hits i will try it for sure and let U know. Only swap i am planning to do is of course R34 GTR front 😍.
    • Marek
      WGNC34 - floor mats

      By Marek · Posted

      Hey. Very valuable information about pitwork, I will pay attention when buying any consumable parts 🙏 As for the carpets - I got a handful of information from nengun, from which it appears that indeed the carpets for the driver's side are OEM. They are not able to show me any pictures due to the long chain of different sales entities but after I place the order, as soon as the goods arrive at the nengun warehouse from which they will send the shipment to me they can send me photos and if my purchase differs from OEM I can immediately return it / cancel the purchase. I think I will give it a try 😉. Of course i'll let you know what's what as soon as i get them P.s. I know the topic is not relevant to the thread, but both nengun and amayama have these SICK 😍 trunk room lamps available. Do you know anyone who ordered them? I need to have one in my car
    • ARB26
      S1 Autech 260RS Wiring Diagrams

      By ARB26 · Posted

      I've managed to find this: Nissan_Stagea_AutechVersion260RS (1).pdf
    • MBS206
      Hi everyone.

      By MBS206 · Posted

      I believe @Duncan has given it a crack at Mt Buller before (in actual race conditions)
×
×
  • Create New...