This is what I am referring to. Anyone else had experience with stiffer exhaust springs?
I have had similar experiences with this bog issue on my sled as well at that 6500-7500 range with a boondocker turbo . my experience is not exactly as you guys describe as my bog doesn't recover. My donuts are fine and springs tripled up. also played around with weights to get rpms down so its not over revving. I found its worse the higher boost you apply. 5-6 pounds its happened infrequently but at 10 pounds it was horrible. hunted around for weeks and calls to boondocker and finally i got some results with changing out the exhaust valve springs. Don't remember what stock springs were now but changed them out to a
7041786--12 ORANGE/YELLOW 9.5 12.0 2.397 .051 spring