but if you slap a turbo onto the SR after its engineered its just as good as having a non engineered sr20det in it...kinda pointless really

to run mid/low 12s in the 1200 you would probably need around 200rwkw from the CA. and if you want it to actually last you will need to atleast rebuilt it and best off to spend the extra grand and go forged pistons and rods whilst its apart. cost me $1100 for forged pistons and rods so not overly expensive
better to have one good engine than to keep on blowing up other engines that have 100-200 thousand KMs on them

SRs are only known so well coz everyone with a silvia has an SR in it. they are no where near as strong as an FJ and never would be. but ofcourse you wont find an FJ20det in a wrecking yard or at many performance shops, afterall how mant DR30 turbos do you see around anyway