EOI: Boost to 10PSI for R33 $10

[benl1981]

Ok. I have a small restrctor piece that all you need to do is disconnect the 2 hoses to the factory boost solenoid and plug them onto either side of it. I have drilled it out to the right size to make 10psi.

Takes less than 5 minutes to install, no changes to hoses and you won't burn out your solenoid by earthing it to the chassis to get the constant 7psi!!

Please see latest posts. Verify that you do have the solenoid connected that I am referring to..

You get one piece, clamps and instructions delivered for $20.

If you want a second piece to hold another boost level add another $8 and I will try and amtch that boost level.

[ZILR-34]

smart idea bro. i made one Similar but i made it out of a 1/4" ball value tap. it doesnt bleed but u can Adjust the boost as much as u want. it costed me abut $9-10 thats wat i call cheap boost LoLz u think of it $10 for extra 15-25kw depends how much u want to drill it to get the boost setting.

good lucky on the sales mate

bill

[benl1981]

Thanks mate, got the idea from reading a few things in here, found this nice little fitting that suits and thought I'd see if anyone interested. Yes, alternatively you can get about a 6mm needle valve to do the same thing as this (like what you did) - though you have to adjust to get correct setting and boost could spike slightly more. Depends what people are after.

So the R32 has a similar arrangement (just looking at your pic in avator)?

[sik_chode]

I am interested Pmd you

[benl1981]

I am interested Pmd you

PM replied.

Also included insttructions and illustrations

[benl1981]

http://cgi.ebay.com.au/ws/eBayISAPI.dll?Vi...4543188036&rd=1

[benl1981]

Put another one on a friends car and now he wants to keep it. Now my car is on low boost..have to make some more

[benl1981]

Nissan Skyline R33 Boost Modification

Standard Boost?

Standard R33 Nissan Skylines run 4 Psi boost below 4500rpm, above this a solenoid is activated which allows boost to reach 7 to 8psi. This is why standard skylines feel quite FLAT low in the rev range!

What will this do and what is it?

An orifice piece that is predrilled to the correct size bypasses enough air to allow 10psi of boost. This orifice will be placed between the hoses that currently run to the standard sloenoid. 7psi should then be achieved by about 3000rpm in 1st and 2nd gear and 2500rpm in higher gears. 10psi will be reached slightly after this.

How to do it?

The fitting of the equipment involves simply unplugging the hoses off the solenoid and inserting the piece provided. This should only take 5 minutes to install. I will also provide instructions and pictures on the installation process.

What's provided?

2 orifices will be provided - one that hold 6-7psi and one that holds 10psi. The 7psi orifice can be drilled out to achieve other boost levels higher than 7psi if desired.

Is it better than a simple bleed valve?

In some ways it is. There is no adjustment so there is no chance of boost altering when you don't want it to. Easier to fit, plug and play. I have done the homework determining the correct orifice size - so it should be right to go.

Disclaimer: It is a good idea to verify the boost with a reasonably accurate gauge. With any modification please do this at your own risk and be careful

[benl1981]

Here it is in place.

[(B1) MR_fanny]

thats a clean engine bay!!

so are these prone to spikin?

[benl1981]

Yes it is That's my fiends skyline, mine isn't quite that clean

No they don't spike much. They are Better than a valve.

Also, when I tested the boost with the standard solenoid ( i.e. before I changed to this piece), boost would hit 0.6 bar then back to just under 0.55bar.

These are slightly better peak boost to 0.7 bar but trails back to just over 0.65bar. So you are not loosing boost control over the standard setup Probably about the same control in terms of spiking as stock, thowever with this piece there is more boost at low rpm = more low end torque.

Cheers

[J_R32]

Hi there,

firstly do you know if this would work on a R32 rb20det?

secondly can you please pm me your account details, for 10 it still worth a try! what comes in the package for $10?

thanks

[benl1981]

Hi. I don't think this will work on an RB20Det as I don't believe it has the solenoid shown in the picture.

Sorry about that

[sik_chode]

Received mine yesterday and put it in this morning! works like a dream - mine hits 0.7bar then dropped to 0.68 bar, not much of a spike. With the solenoid i was spiking as much as 0.6bar I think, the same as when I ran the needle valve setup.

[flex]

are there any disadvantages? advantages?

i don't know shit, i'm a total noob.. but if its going to make my car run at 10psi for $10... then I'm all for it so can a noob like me be able to fit this devices hehe? I'm interested... count me in

[Fidel04]

it will work with any turbo car i imagine, i know my cefiro has no factory solenoid, and a simple restriction in the hose to actuator like this would up the boost

[Raikkonen]

i'm liking this idea, as it would be harder to detect if one was pulled over, compared if i had a shiny bleed valve in the car

I'm actully keen on one of these things if they are as good as you make them out to be

[benl1981]

You really do need the solenoid placed in the system to start with as you should be expelling the bled off air somewhere.

The standard solenoid has an inlet from the T piece between intercooler pipe and actuator, the outlet of the solenoid is to a vacuum hose that goes back into the inlet (before the turbo.otherwise the pressure would not let the air escape).

You can do it with any turbo car but the correct way to do it would be to insert a T piece in the hose going to the actuator and place a restriction in the Teed off hose, but then channel it back into the intake (not really neccesary). So you can do it with any car yet more experimentation would be needed to get the right size orifice etc. It's just that this seems to be good consistent boost with stock or slightly modified R33s.

If you just place a restricion in the hose it could lead to delayed boost response and strange boost curves I would think.

I have had a fair bit of demand , I have actually run out of the pieces that I use. I will try and source some more and reply to PMs seeing that people seem keen.

Thanks

Ben

[benl1981]

I will have these pieces ready to go by late next week I think.

They will now be a brass fitting but will still not be able to be picked up by others as being nonstock.

To cover costs $15 Delivered. Still a cheap way to gain some power and low end torque. The fitting is also more robust.

Please note it is advisable that you fit a boost gauge to verify that peak boost is in the 8-11psi range peak. All the skylines I've fitted it to so far have been 9.5-10psi holding steady.

[Raikkonen]

let me know when you have some in, i will give one a whirl.