[p_b82]

As to answer why it is so special, it is a geniune VNT controller that modern diesel's use.

it has been custom built, to tap into TPS, MAP and a whole host of other sensors to to drive the vanes in a "proper" fashion, rather than as a response to boost - which is what the Dark Ice or Arduino versions essentially do.

The issues as to the delays are some-what complicated - I understand them and the circumstances but it doesn't help.

I have however managed to get things moving on one side slowly....

I'll be fitting the turbo & manifold - worst case we run it as a fixed vane turbo with the hard stops set and normal boost control for the actuator - this way the car actually gets to be used and I don't strip/scrap it...

Maybe there is some life left in the project....

And Phil - the other car is the one that has been used to test this version of the controller, it has had a number of issues of it's own, and currently is underfuelled with just SDI's - hence no Dyno prints as we know the limits of those.