ooops, and need advice.

[umpkin]

i wonder if its to do with when i took out the metal pipe supply to the turbo, i have the mk1 engine with the long pipe, this broke at the join at the back of the engine, i replaced this with a length of braided hose, i wonder if the join at the back of the engine was a restrictor of some type??? other than that i havnt seen a restrictor in the line when i had it off, could this cause the prob????