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I just took my boost restrictor off! WOW!!!

justinfox

By justinfox,
in General Automotive Discussion

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justinfox Mentor

justinfox

Posted
Posted

Hey all,

After reading the latest GT-R issue of HPI magazine where there were 2 cases in the magazine where they suggest you take off the boost restrictor off an R32 RB26DETT for extra boost (almost 1bar, perfect for stock ceramic turbos apparently). I thought I'd go and see if my car (R32 GT-R), which is pretty damn stock, still had this little restrictor on it. And turns out it had. It's clearly marked by a yellow line. You can feel it's there. I simply took the hose off the boost solenoid thingy. Then used plyers to push the little boost restrictor along the hose until it popped out. It's a tiny little brass spacer looking thing. Nothing more nothing less. It has a tiny hole through the centre (thus restrictor!). I put the hose back on. Easy done.

Just came back from a drive around the area I live in and wow. Amazing difference! It goes a lot harder now. Amazing. I am stoaked! Boost guage needle goes all the way to the top too now. Just awesome!!!

I had read threads about it on this forum. And like all forums it's always confusing to read the threads as 1/2 of the people say do it, and the other half say don't do it, it's dangerous etc. Well... best way sometimes is to try these things yourself. And so I gave it a go.. and I'm VERY happy I did!!!! It only took 5 minutes to do too. And would be easy to replace as well if I ever wanted to revert back to stock.

Whoot!

GTR%20restrictor%20location%20yellow%20banded%20hose.jpg

wrxhoon Grand Master

wrxhoon

Posted
Posted

justinfox , r33 gtrs have the restrictor in as well dont know about r34s though . now that u removed it get a boost gauge that will read at least 20psi cause if u have a 3" exhaust hi flow cat u will find it may boost to 1.2 bar . ur turbos will not last very long at that boost so be very careful u'll end up with busted engine .

unwritten law Proficient

unwritten law

Posted
Posted
justinfox , r33 gtrs have the restrictor in as well dont know about r34s though . now that u removed it get a boost gauge that will read at least 20psi cause if u have a 3" exhaust hi flow cat u will find it may boost to 1.2 bar . ur turbos will not last very long at that boost so be very careful u'll end up with busted engine .

yeah an aftermarket gauge would be a good idea...

justinfox Mentor

justinfox

Posted
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So turns out I am running a Mines chip + very large exhaust. The HPI magazine article specifically says that the Mines chip makes taking off the boost restrictor safe. But I would like a boopst guage that read over 1bar to be safe so any suggestions peoples?

I'd love it if the boost guage could replace the stock one. I somehow doubt this is possible? I really don't want to clutter the interior with another guage which will stick out like buggery. Any suggestions on a subtle boost guage/position?

pentae Mentor

pentae

Posted
Posted

justinfox: please take this advise seriously because I only want to tell you once, go and buy an Apexi AVC-R boost management system. Dont listen to anything anyone else says. It is goign to be the best $800 you ever spent. Go read up about it, make some calls and ask industry people what they think of it.

Mount it sitting in the middle of your dash or you can mount it in front of your air con vents.

It is the ONLY responsible thing to do if you own a GTR.

franks Veteran

franks

Posted
Posted

dont ya just love boost??? boost is the best bang for buck mod you can ever do to a turbo charged car :devil: most of the time its FREE but with everything good there are side effects - "the candle that burns twice as bright, burns half as long" :D:(:)

as for the avcr. couldn't agree more. i've carried over my avcr from the wrx to the gtt and its an amazing piece of gear. pity my installer crossed over the throttle position and rpm wires! duh! in any case i have 1 gripe with the avcr and that is, its too big. wont fit into a standard din slot so it sits in my glovebox.

justinfox Mentor

justinfox

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I don't think I really need a boost controller? Overkill? I will look into this a little more though in any case. I doubt taking off that little restrictor will make my car boost so much more. If I do blow the turbos... then I will just have to get new ones which don't have ceramic bits! :devil:

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