Varible Boost Control

[jethead98]

Can someone give me a rundown on how to install a boost control into my r33 gts25t please or fill me in on how you increase the boost from the standard 5psi (i think)...Pod filter has been done.

still wet behind the ears

[BOOSTMEISTER]

I can make you a bleed valve for about $20 and send it to you then just T it into the line between the turbo and the wastegate.

What it does is bleed off excess boost and stops the wastegate openign as soon and thus allowing more gas onto the turbine wheels and there for makes more boost.

Cam

[jethead98]

Thanks Cam, sounds real good, is it something l can put togther easy as l am sure you have better things to do than look after newbees like me, but l am gratefull for your offer and will gladly fix you up for your time amd expenses to build one for me...

my email is [email protected].

[BOOSTMEISTER]

There are a few different types around but they can be hard to find so I will make you one and send it to you. private email me on [email protected] with your address and I will let you know the exact cost.

Cam

(Don 't worry, its no hassle, this is what the forum is all about dude)

[400R]

For my boost i just disconnected the bottom hose on the boost solenoid and fitted a hose connector off a sprinkler system, then modified the size of the hole the air leaked out off. all up this cost me 50 cents and my boost is set at 10psi and never spikes, mind you i haven't done anything to my engine apart from exhaust and pod filter, maybe different for highly modded engines?

[BOOSTMEISTER]

Just remember that if air goes out it can also go IN and cause fuel issues, a hole this small shouldn't have too much of an affect but keep it in mind. Most bleed valves also have this problem but they are filtered so they will not suck in dirt etc.

Cam

[Birty]

Cam, have you got one of those in your car ?

[BOOSTMEISTER]

Yeh I use a bleed valve on mine with a different actuator as well that is heaps stiffer than the vg30 one. mine is filtered and also has a one way valve attached but really isn't necessary as it will not suck in that much air. I just wanted everyone to know that it is possible to distort fuel maps when fitted. I have a safc so it really doesn't matter anyway lol

[Grim]

I can make you a bleed valve for about $20 and send it to you then just T it into the line between the turbo and the wastegate.

Cam[/quote:22afd6cf52]

Isn't it different for an R33? You are talking about an R32 right? I thought with an R33 you do the same thing but with the line to the boost solenoid...?

[BOOSTMEISTER]

Oh s*%t I was talking about a 32....so how is the set up on a 33 different? can you still tap a bleeder into the solinoid line?

Cam

[Grim]

I'm not really sure Cam, but I believe the bleeder goes just before the boost soleniod. Can someone who actually knows clarifiy this cos I'm just trying to remember what I once read on SDU.

[Gradenko]

On a R33, its best to bypass the boost solenoid altogether. So tap the bleeder into a line going from intake piping (compressed side) to wastegate.

Also, for us non-fuel computer guys, it might be a good idea to recirculate air thats being bled off. That way, the ecu isn't fueling for air that isn't there and the engine doesn't run rich(er).

[Guest INASNT]

yep on a 33 bypass the factory solenoid alltogether!

Grim

If u wanna c how my 2 stage system is done come over 1 day to my house when there is light!! unlike last time! :lol:

[BOOSTMEISTER]

Cool, Thanks guys

[jethead98]

I have installed the valve in the line fromthe wastegate to air inlet pipe and have disconnected the solenoid valve, adjusted it up so my standard guage is nearly 3/4 now..approx 9psi..Made a nice difference in performance although i almost feel it cuts in a bit early....How far can l go safely..any suggestions....Considering +7 = 13.4psi..:burnout: