The threads pulled from the bowl. A few people have come to the same conclusion that the bolts were to short. The bolts I used were all brand new 1 1/2" stainless. The depth of the hole in the bowl is barely 1" deep. I used the longest bolt I could get in there. About half the bolts were still in the housing when we got it on the trailer. You can still see the blue lock-tite on the threads. I think the threads were a little too degraded in the used bowl. In hind sight, 2 bolts didn't feel great when I did my final torque. I told myself the next time I pull this bowl off I'm going to install SS inserts to all the holes. Well that time just got here a lot sooner than I had anticipated. I think I underestimated the force generated when you up the horse power significantly. I also put in a B1 racing loader, feeding a bronze A impeller. Nothing crazy, but everything was tight in this pump. I'm going to talk with Chris at B1 and see what he thinks about drilling and double bolting the bowl. I asked on PB back when I was building the pump and was told this was not necessary unless you were pushing 1000 hp or more. I'm guessing I'm in the 750 hp neighborhood, I didn't get to dyno the motor like I wanted to, yet! I'm just glad I still have all my parts, that's a fare chunk of change hanging on those cables.
