this is a bit of a sh1t fight isnt it?
the be all and end all of ANY turbo motor........... cash in equalls power out.
sure the B18B may be weaker (dont know if this is true or not?) but an upgrade in internals would solve this. (correct?) An upgrade in internals on a b18c changes it charictoristics ( correct?)
brings me back to what i said
'$=Kw'
if you want to spend a little less on purchasing the engine (assuming a b18b cost less)and put a little more into moding it im sure a good result will be acheived. or