A/R sizeing
 

So i'm in the middle of my turbo 1st gen MR2 build and i picked up a garrett t3 60 trim with a .63 A/R for a great deal. I went through the trouble of plotting the compressor map and it looks like a fantastic match for the little 4age in the car but i'm worried about the lag if i use such a big exhaust housing.

I would consider the d16 and 4age to be similar in nature and power output seeing as how they are both 1.6's and both heads flow aound the 170 cfm mark so i would think it would be a fair compair the two,
so is any one running a t3 60 trim with a .63 exhaust housing on a d16?

When is it spooling?
What do you think?
Would you go through the trouble of swaping a .48 exhaust housing?