no, I dont think he'll beat you, not with just a chip. Check out Goapr.com, that'll give you a rough estimate of where modded 1.8t's stand.
A friend of mine had a ported and clipped ko4 on his gti, and it was fast. He's got a gt40 I think now, which is t3/t4 territory, and with that turbo they scream.
On a side note, 1.8t's never cease to amaze me, they were the second engine of choice I was considering. They just make a lot of power, period.