böst

Why do the earlier turbo II's have less hp?

RETed

Less compression ratio - 8.6(?) versus 9.0
Less boost - 5.5psi versus 7.5psi
Crappy turbo/manifold design



-Ted

böst

Wouldn't you want lower compression if you're going to boost the bejesus out of it? Or is that not the case with rotaries?

Node

iTrader: (1)

stock boost does not qualify as bajesus
its more of a safety measures, higher compression still makes more hp, just isn't good for boost.
But Series 4 (86-88, actually Turbo 2s were only 87+) were lighter, and actually have a better lbs/hp ratio