M35 Boost Bleed Valve

[scotty nm35]

So you still have the bleed valve setup? Put a ball bearing in there to block it if needed so it doesnt bleed anymore. The hose that goes to the stock solenoid has a restrictor in it so either dont use it or replace the hose at least.

Your setup may not work to the same boost as the last car. Turn it down to minimum and slowly wind it up.

[jasevr4]

So you still have the bleed valve setup? Put a ball bearing in there to block it if needed so it doesnt bleed anymore. The hose that goes to the stock solenoid has a restrictor in it so either dont use it or replace the hose at least.

Your setup may not work to the same boost as the last car. Turn it down to minimum and slowly wind it up.

I don't have a bleed valve at all, just the Blitz SBC and the standard boost solenoid. So from the T-piece to the stock solenoid I should use a new hose?

[scotty nm35]

The stock solenoid IS the bleed valve. Thats how it works, by bleeding off some of the wastegate pressure through a 1mm restrictor. This needs to be removed completely in your setup and the blitz solenoid placed between the other two larger hoses, it cuts the pressure to the actuator altogether unless energised.

[joshm35]

Can you do a quick sketch scotty to show what tube to remove. Where to place the blitz solenoid. May be easier to interpret...

[scotty nm35]

I can weld pretty well but MS Paint isnt my strong point.

Place the Blitz solenoid wherever you want it, run the OUT to the actuator and the IN to the intake near the BOV using new hoses. Use cable ties to stop the hoses blowing off.

[Commsman]

Here's what Scott's talking about (I think, lol).

If you have a boost control system that uses a solenoid to interupt the flow to the wastegate, ie wastegate sees no boost whilst solenoid is closed & sees boost when it's open (normally pulses to maintain chosen boost pressure - one of the best ways to control boost IMO), then you need to take boost hose off the top of the T in the picture. Run that to IN of your solenoid. The OUT from your solenoid goes to the wastegate actuator.

It can be confusing. I've never seen an engine with so many vacuum/boost hoses coming off an intake system .

Edited October 9, 2011 by Commsman

[jasevr4]

I've changed it back to stock for the time being. Driving to Canberra tomorrow now so I don't want to have it setup wrong for the trip.