Hallo FI!

[iGoRa]

hallo all !
I'm officially starting my FI Turbo project.
My goal:
for now to get the system running.
for the future - lots of boost in high rpm range.

I need your help guys in selecting the parts and help for all other related dos and don'ts.
Ive been looking in to twin setup with the front mount turbos but didn't find the place where they could make me front swept headers. I couldn't wait anymore, so I bought a FFF turbo pipes from one of the members here(evangelion).

Im already have lots of questions, Probably I should ask them one by one.
1. turbo size.
I do understand all that about compressor, reading compressor map etc, the only question is what about turbine?? Turbine does not matter? Either T3 or T4 turbine or .48AR & .63AR the compressor map would be the same?
2. Intercooler size for FFF. On the website its listed as 30x6x3. This is the core size or overall size?

[Turbo V6 Camaro]

.68 for a T4 will spool okay on a stock car. and 84 on a stock car will spool well too.....

the 60-1 or the T61 seems to be about perfectly match for a stock car

http://www.turbocalculator.com/sale-garrett.php

[iGoRa]

I plan to upgrade valve train in the future , al rockers and maybe p&p, would hate to get something that I would have to upgrade in the future.
61-1 and 62-1 maps look really nice, but I think that the compressor map is for .68T4 T3 with different AR would drive the compressor at the different speed. and the numbers would shift, or im missing here something?

[Turbo V6 Camaro]

.68 AR hot side will only affct the spool the cold side matters as to the amount of air and RPM it need to push lots of air