Standard Solinoid Plumbing?

[postal33]

have recently removed my boost "t" and only gettin 5psi from standard solinoid only one vacc hose going from solinoid to intake searched for two days now and cant find anything here other than how to remove dual stage part by earthing.

(items removed to clear defect)

[R33 Eddy]

solenoid plugged in? if you do the hack to get 7psi all the time does this work or is it 5psi?

also do you have stock ECU? iirc if you upgrade the ECU, the solenoid wont work as its operated by the stock ECU.

easy fix is to put the boost T back on

[KiwiRS4T]

Supply boost from intercooler pipe to one side of solenoid. Other side goes to plain T one branch to bov return pipe other branch to w/g actuator.. there should be a restrictor which i think goes in the boost supply line to the solenoid. if you are missing that you will have less boost. You can simulate the restrictor for test purposes by lightly clamping the supply pipe ( don't cut off the supply or your turbo willl boost astronomically and likely self destruct!!).

[postal33]

Thanks ill have a look its plugged in to loom and standard ecu when i removed t i just have hose from cooler pipe to w/g actuator.

[R33 Eddy]

the w/g actuator is only 5psi in R33 and 12psi in R32.

to get more boost you will have to use your boost T or boost controller. using the stock boost solenoid with the high boost mod will give you 7psi rather than the 5psi then 7pis after 5000rpm or what ever it is if its working.

[postal33]

Plumbed up as above mentioned works a little too well?! Hits boost cut but happy to have more than 5psi was nearly going to trade for vn v6 5psi is not cool

[89CAL]

you were gonna buy a VN instead of going and buying a $20 boost controller to get it to go to 7psi?

that makes no sense... why would you want to downgrade like that.

If you get the standard boost solenoid and plumb it up you can cut one of the wires and earth it straight to the chassis and have 7psi constant. Theres a tutorial on it somewhere

As for the bit about the restrictor? I havent seen that in an R33 but I think there is something like that in the 34's but not 100%

the boost solenoid has 2 ports close to each other and one somewhere else, Im pretty sure the 2 close together go to the cooler piping and the BOV return line, the other line goes to your W/G actuator. What was said above about tee-ing the solenoid to the W/G actuator on one side and bov return on the other should not be done. There will never be enough boost supplied to the actuator to open the wastegate if you do this and it will boost till it goes bang

but I may be wrong about how it is hooked up, havent had a stock boost solenoid for a long time. should be able to find photos on here somwhere, probably in the thread to do the 7psi constant boost earth mod.

Edited December 22, 2010 by 89CAL

[postal33]

For the vn remark i was comparin 5psi to being close to vn spec. Im trying to keep car defect free (after removal of this one) so standard solinoid will surfice for now. Thanks for your assistance. Next time i see full stock r33 gtst ill have look at how things are ment to be

[blk94r33]

the w/g actuator is only 5psi in R33 and 12psi in R32.

to get more boost you will have to use your boost T or boost controller. using the stock boost solenoid with the high boost mod will give you 7psi rather than the 5psi then 7pis after 5000rpm or what ever it is if its working.

Wouldn't happen to know the factory spring pressure of a R34? Got one here looking to go on my car, would like to know if I should modify it to run lower boost? (an aim of 7psi)

[mosquitocoils]

Should be 7psi actuator pressure