I was just wondering exactly how the Syvecs TC functions in term of ignition and fuel alterations? I have it set up on my Supra (thanks Ryan

Can anyone tell me what the ecu does from then on? Ryan did give me a brief explanation about retarding timing and reducing fuelling but I don't remember any details unfortunately. In some ways it sounded kind of similar to an antilag type thing but I'm wondering if I have the wrong end of the stick. Is it in any way damaging to the turbo?
Many thanks
Dan