I put some thought in to this project my self and I figured that for the cost of the set up you can have a ca18det for similar cost and it would be more reliable than an a15 turbo.
I went for a ride in a 1200 coupe with a injected turbod and intercooled a15 and the guy had put a lot of time into the project and I recon an ca18det would have creamed it. From what Ive read a standard ca18det in a 1200 will give you high 13's, my twin turbo a12 was getting 15.2 and I recon to go any harder you would have to start to spend some seroius money.

But I guess if you are after something different go for it..
Ill be watching