Removing R33 Gtr Boost Restrictor

[GTRKING33]

Hey there,

have done plenty of research on the removal of boost restrictor on r33 gtr to get 14psi of boost.

I want to remove the restrictor but not cut it out so i have the option to re install it for sale etc.

Ive taken a picture of what i believe to be the yellow restrictor

what i ask from you;

Is this the right restrictor the yellow striped line?

How do i get the thing inside to come out so its non restricted without cutting the hose and rejoining it?

Thanks in advance for any replies and help.

[R31Nismoid]

So push it out then... It's not going to come out via magic

[GTRKING33]

How the hell do i push it out mate?

[Shuyin]

Get a set of pliers, put them right behind the restricter and just push down on the hose until the restrictor moves up the hose. Move up the hose an repeat until it comes out. Save the restrictor, DO NOT THROW IT OUT. You might find that the increased boost leads to misfiring, so keep the restrictor to put back in if that happens (Obviously get this misfire issue fixed if that happens).

[XKLABA]

what boost are you running ATM, 10 or 12 psi ?, where does the blue hose go ?, where is the stock boost solenoid ? and what is joining the two hoses together ?

the restricter should be where the yellow ring of paint is on the black hose

[GTRKING33]

Shuyin. Thanks heaps bud, worked perfectly.

To the other guy I don't know what that thing is and the boost level ATM is just over half way from 0-7 on the stock gauge

[Moodles2]

+7 on the factory gauge is 13.2psi

[GTRKING33]

I've taken the boost restrictor gold thing out and my boost gauge goes to about 3.8-4.2 mmhg or whatever the factory gauge reads, how do I get it to go to 1 bar or whatever

[GTSBoy]

That's 380 - 420 mmHg. It actually says the units are 100mmHG on the gauge.

The reason that XKLABA wanted to know the answers to his various questions is part of the reason why you are not getting more like 700mmHg boost even with the restrictor removed. Your boost control system does not look standard. You need to know what about it isn't standard before trying to increase the boost with a trick that is supposed to work on the standard system.

/facepalm.

[Moodles2]

I agree with above, that blue hose isn't factory, and I have no idea what that thing is between the 2 lines.. it kinda looks like a wierd ass hose joiner. Looks like no mac valve (EBC solenoid) or a bleed valve or the factory boost controller.

380-420 mmHg is 7-8psi which sounds like actuator pressure.

[GTRKING33]

The blue hose definitely is aftermarket. The thing joining the 2 hoses is weird, it's like a filter kind of thing, so how can I crank up the boost?

[GTSBoy]

Fit a proper boost controller, or find and refit all the original stuff (with the restrictor removed). Given that we can't see what you have and don't have, you'd be best taking it to someone who knows what to do.

[Moodles2]

Is it see-through plastic (looks like silver paint on it?) like this: http://www.boostcontroller.com/index.php?item=306&ret=http%3A%2F%

Then whoever you brought the car off orignally took the EBC out (most likely HKS EVC or another jap EBC that comes with these vacuum line filters) before sale and sold/kept the EBC.

[GTRKING33]

Damn noodles that's exactly what it looks like!

Gtsboy if you can help I will take pictures of everything.

Can I use a simple manual boost controller ?

[Moodles2]

With the hoses joined that that, you will only see actuator pressure (7-8psi). If you had the factory solenoid (found between battery and front drivers strut, labelled something like 'Nissan PCM valve') you would see 10-11psi with restrictor, and 14.7psi without restrictor.

If you don't have the factory solenoid, then get a decent boost T like a turbotech (the best of the boost T's) and adjust it, but bear in mind the resolution of the factory gauge is only +7 (13.2psi) and even then it's not very accurate.

[GTRKING33]

So should I remove that filter thing and buy a boost tee, or leave the filter on ?

Where do you install the boost tee, I've done heaps of searching and can't find for a gtr only gtst

[blue_vl_t]

if you buy a turbotech, they come with simple instructions in laymans terms just follow them. The boost contorllers are cheap and work well i think.

[GTSBoy]

Same same. You just need to connect the signal to both wastegate lines so they both work.