ziich

Which B-series motor is best for turbocharging in terms of reliability and potential to create power (given that pistons, rods, injectors, other internals, etc will be upgraded/replaced for the turbo).

DragII

if you are replacing all the internals...it does not matter which motor you choose.

BoM

if your not resleeving a 1.8 is great.

AutoSol

That's not an easy question to answer, so many options to go with. I'd say go with whichever one you can find the cheapest (probably B16A or B18A/B). Use the money saved for internals and a good turbo build. I've got a turbo B18B myself, and I'm happy with it (internals are all stock, boosting 6psi).

The theory is that the B16 is the most reliable (re: rod stroke ratio), and it responds well to mods (re: good flowing head). The longer stroke of the B18B (resulting in lower compression) makes it a good candidate for turbocharger "out of the box." The B20B is another good option (being it's a big-bore B18B), though possibly more expensive. Once you start messing with internals, though, it's a different story -- it all depends on what internals you go with and who does the motor buildup.

If this is a daily street driver, and you want something simple, fun, and fast (i.e. 200+whp and not a lot of down time), go for the LS/turbo.

14eight

i say d16z6, cheap parts, easy to replace, plus its vtec. bam!! peace