hi im kinda new to the turbo scene and accidentally purchased a dog of a series2

just had to replace the suspension which i changed to -60mm and now it's scrubs on full lock

gearbox is also knackered and theres a lot of rust and im running out of money... fast. the engine is sweet apart from the fact that when it comes on full boost the ignition cuts out, when the turbo is building up the boost it's fine and accelerates very well up until full boost it cuts the spark and throws you forward had the boost on 0.6 bar and it does it, upped the boost to 1bar and it was still doing it, The car has apparently been chipped, i carefully took the ecu apart to find the chip which had an "S" on it for superchips i presume
So my question is assuming the car is chipped what else would cause ignition cut? the engine is an early one without the knock sensor, already changed the charge temp sensor for another which wasnt new and it's still the same

It hasnt got a amal valve either weather this would cause it..
Please help me and give me all the advice you can as im stumped and really getting fed up of rs ownership already just after 2 weeks ...
Dave