WOW abrupt engine issues on new jasper.

[Kuban]

Ran a comp test last night when i changed out the plugs. Numbers went as follow from 1-6

175
175
175
175
110
175

As you can see 175 for dry compression test is right where i want to be although cylender #5 is dead. Im guessing ring damage. Thing is, If the backpressure was so hard i would have blown seals on the engine long before i would have cause this kind of damage, but it happened noticeably right after the race. On the last engine when all the rings were gone, i litterally poped the front main seal off the last time i ran it. Dont get me wrong i dont beat my cars by any means. I baby them unless im racing someone and thats about once a week tops.

Looks like its time to call jasper and see if im warrentee.