cheers for all the replys i appreciate it..

quote- What exactly do you mean by struggling after 5.5k?

i mean it hits 5.5k an doesnt seam to want to go any more there's still full boost on the gauge tho.

an its still a 1.6 cvh mfi like i sed i bought the engine of my friend who had a damged s1 with s2 engine so dnt have any paper work with it unfortunatly..

i had feelin it could be timing but wanted sum opinions even tho its varied opinions all are welcome.. well im off work from wednesday (indefinatly dam credit crunch!)

is there any way i can tell wat housing i have on it without stripping coz the turbo looked recent wen i put the engine in not a speck of dirt inside.

i have a vernier here but its a crude lookin affair no degree's on it.

also i've just noticed that sum times at boost at peaks then drops to 15psi an other times it peaks at 15 an drops to 12....