How would a GSR prevail on power? If you drop the compression on the B18C1 as low as the B18B1 (which can still be lowered a tad) you think you will still be making 170 horse? I would just spend like 1000 dollars less and get a B18B1 then port n polish the head....and you will be set to run 8 pounds all day long on factory internals. The only reason I would port n polish would be so the head flows as well as the GSR...Originally posted by sleeepy808
oh, not saying higher compression is better for turbo. lower compressio is better. m jus trying to say, that since teh ls has a lower CR than a gsr, stock, u might be able to get alittle more power out of it than the gsr. but if you fully build both motors the gsr will prevail. and fully built means forged low compression pistons along with all the other goodies.