205 xud7 problems

[Stephen]

Well ive been running my bosched 205 with standard boost (12psi) for awhile now and its been fine, i got to the turbo to turn it up the other day and wound it right in, took it out and it boosted up to 22psi, bit high with no intercooler as the temps shot up

It was using a tank of water in just a couple of hours

So today i turned the fueling down a bit to try and restrict the boost, filled it up with water and took it for a spin, now boosting 17psi, but the temps are still shooting up, and when I got back i opened the bonnet and nearly all the water was gone again!

So i filled it with water again and just tried revving it with the bonnet up by hand to see if i could see anything, i turned the engine off and you could here the water boiling basically. I opened the cap and water spurted out

Is it f*cked?

I dont have much knowledge so dont really know whats going on

/help?

Thanks
Steve