spark plug/boost help [Archive] - Toyota MR2 Message Board

boost, plugs, spark, smoothly, lowered, 9-10, safely, pulls, wondering, stock, feels, swapped, motor, previous, owner, safe, turbo, plug/boost, bought, boosting, stops, repeats, 5500, range, blowout, smooth

hi, i just bought this mr2 and it has the turbo motor swapped in. the previous owner said its not safe to go over 12 lbs because the plugs blowout? but whenever i get on it, its not smooth, like in the mid range it feels like it stops boosting, boost again..and it repeats til like 5500 ish rpm and it pulls smoothly then. i lowered the boost to like 9-10 lbs now and its better, still does it a little and if i lowered it to like 6-7 it didnt do it at all. so i was wondering what is stock