Boost/power troubles after EGR and/or new intercooler

[Hodge]

Wastegate actuator fitted.
Attachment 48646

[Hodge]

Wastegate actuator fitted.
Attachment 48647

[Rumcajs]

Well the car was on the Dyno last 2 days again, and the Chip controlling boost was ditched for a waste gate actuator setup. Needles to say, it runs like a dream now. Heap more power and torque wastegate locked to 18psi, and is very consistent throughout the gears and rev range. Very happy so far!

So how does it work exactly? Spring in the actuator loads the turbo vanes at max and once turbo pressure goes over 18 psi it starts pushing the actuator down to back the vanes off?

How does reinventing the wheel sound?

You could do the same with just the Dawes valve set to bleed vacuum at 18 psi, closing needle valve fully or ditching it completely.

B/R

[Hodge]

It's supposedly an actuator with a dawes built in, kind of. I don't know why they opted this over the needle/dawes, but I can tell you now, the car is much better with this, than it ever was with needle/dawes, no matter how much I fine tuned it.
I've just driven the car for about 2 hours after job was done , and it is the best its ever been since ive obtained it. Thats what matters to me.

[Steve4wdin]

I think the Diesel Smart chip does. Don't quote me on it but I think it does. I don't know how good it works though...

That was how my setup was. After fitting the dawes and needle you sent up, no more issues. Bypassing sensors is ok, but you need to reconfigure the ecu.