I can't comment on a 54 since I don't own one and wouldn't run a PTE turbo. That being said it is the same as my LT-61 by John Craig in make-up. I have seen both go in the upper 10's with the right combo. It isn't the perfect choice for going 10's but will with 25+ PSI and the supporting cast to go with it. I think you would like a John Craig unit much better and the quality, support, etc... from John speaks volumes. Here is a thread with pictures of my 61 from John and boy is it a work of art: http://www.turbobuick.com/forums/showthread.php?s=&threadid=37663&highlight=TE61